--- /dev/null
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "keymaster_hidl_hal_test"
+#include <cutils/log.h>
+
+#include <iostream>
+
+#include <openssl/evp.h>
+#include <openssl/x509.h>
+
+#include <android/hardware/keymaster/3.0/IKeymasterDevice.h>
+#include <android/hardware/keymaster/3.0/types.h>
+
+#include <cutils/properties.h>
+
+#include <keymaster/keymaster_configuration.h>
+
+#include "authorization_set.h"
+#include "key_param_output.h"
+
+#include <VtsHalHidlTargetTestBase.h>
+
+#include "attestation_record.h"
+#include "openssl_utils.h"
+
+using ::android::sp;
+
+using ::std::string;
+
+// This service_name will be passed to getService when retrieving the keymaster service to test. To
+// change it from "default" specify the selected service name on the command line. The first
+// non-gtest argument will be used as the service name.
+string service_name = "default";
+
+namespace android {
+namespace hardware {
+
+template <typename T> bool operator==(const hidl_vec<T>& a, const hidl_vec<T>& b) {
+ if (a.size() != b.size()) {
+ return false;
+ }
+ for (size_t i = 0; i < a.size(); ++i) {
+ if (a[i] != b[i]) {
+ return false;
+ }
+ }
+ return true;
+}
+
+namespace keymaster {
+namespace V3_0 {
+
+bool operator==(const KeyParameter& a, const KeyParameter& b) {
+ if (a.tag != b.tag) {
+ return false;
+ }
+
+ switch (a.tag) {
+
+ /* Boolean tags */
+ case Tag::INVALID:
+ case Tag::CALLER_NONCE:
+ case Tag::INCLUDE_UNIQUE_ID:
+ case Tag::ECIES_SINGLE_HASH_MODE:
+ case Tag::BOOTLOADER_ONLY:
+ case Tag::NO_AUTH_REQUIRED:
+ case Tag::ALLOW_WHILE_ON_BODY:
+ case Tag::EXPORTABLE:
+ case Tag::ALL_APPLICATIONS:
+ case Tag::ROLLBACK_RESISTANT:
+ case Tag::RESET_SINCE_ID_ROTATION:
+ return true;
+
+ /* Integer tags */
+ case Tag::KEY_SIZE:
+ case Tag::MIN_MAC_LENGTH:
+ case Tag::MIN_SECONDS_BETWEEN_OPS:
+ case Tag::MAX_USES_PER_BOOT:
+ case Tag::ALL_USERS:
+ case Tag::USER_ID:
+ case Tag::OS_VERSION:
+ case Tag::OS_PATCHLEVEL:
+ case Tag::MAC_LENGTH:
+ case Tag::AUTH_TIMEOUT:
+ return a.f.integer == b.f.integer;
+
+ /* Long integer tags */
+ case Tag::RSA_PUBLIC_EXPONENT:
+ case Tag::USER_SECURE_ID:
+ return a.f.longInteger == b.f.longInteger;
+
+ /* Date-time tags */
+ case Tag::ACTIVE_DATETIME:
+ case Tag::ORIGINATION_EXPIRE_DATETIME:
+ case Tag::USAGE_EXPIRE_DATETIME:
+ case Tag::CREATION_DATETIME:
+ return a.f.dateTime == b.f.dateTime;
+
+ /* Bytes tags */
+ case Tag::APPLICATION_ID:
+ case Tag::APPLICATION_DATA:
+ case Tag::ROOT_OF_TRUST:
+ case Tag::UNIQUE_ID:
+ case Tag::ATTESTATION_CHALLENGE:
+ case Tag::ATTESTATION_APPLICATION_ID:
+ case Tag::ATTESTATION_ID_BRAND:
+ case Tag::ATTESTATION_ID_DEVICE:
+ case Tag::ATTESTATION_ID_PRODUCT:
+ case Tag::ATTESTATION_ID_SERIAL:
+ case Tag::ATTESTATION_ID_IMEI:
+ case Tag::ATTESTATION_ID_MEID:
+ case Tag::ATTESTATION_ID_MANUFACTURER:
+ case Tag::ATTESTATION_ID_MODEL:
+ case Tag::ASSOCIATED_DATA:
+ case Tag::NONCE:
+ case Tag::AUTH_TOKEN:
+ return a.blob == b.blob;
+
+ /* Enum tags */
+ case Tag::PURPOSE:
+ return a.f.purpose == b.f.purpose;
+ case Tag::ALGORITHM:
+ return a.f.algorithm == b.f.algorithm;
+ case Tag::BLOCK_MODE:
+ return a.f.blockMode == b.f.blockMode;
+ case Tag::DIGEST:
+ return a.f.digest == b.f.digest;
+ case Tag::PADDING:
+ return a.f.paddingMode == b.f.paddingMode;
+ case Tag::EC_CURVE:
+ return a.f.ecCurve == b.f.ecCurve;
+ case Tag::BLOB_USAGE_REQUIREMENTS:
+ return a.f.keyBlobUsageRequirements == b.f.keyBlobUsageRequirements;
+ case Tag::USER_AUTH_TYPE:
+ return a.f.integer == b.f.integer;
+ case Tag::ORIGIN:
+ return a.f.origin == b.f.origin;
+
+ /* Unsupported tags */
+ case Tag::KDF:
+ return false;
+ }
+}
+
+bool operator==(const AuthorizationSet& a, const AuthorizationSet& b) {
+ return a.size() == b.size() && std::equal(a.begin(), a.end(), b.begin());
+}
+
+bool operator==(const KeyCharacteristics& a, const KeyCharacteristics& b) {
+ // This isn't very efficient. Oh, well.
+ AuthorizationSet a_sw(a.softwareEnforced);
+ AuthorizationSet b_sw(b.softwareEnforced);
+ AuthorizationSet a_tee(b.teeEnforced);
+ AuthorizationSet b_tee(b.teeEnforced);
+
+ a_sw.Sort();
+ b_sw.Sort();
+ a_tee.Sort();
+ b_tee.Sort();
+
+ return a_sw == b_sw && a_tee == b_sw;
+}
+
+::std::ostream& operator<<(::std::ostream& os, const AuthorizationSet& set) {
+ if (set.size() == 0)
+ os << "(Empty)" << ::std::endl;
+ else {
+ os << "\n";
+ for (size_t i = 0; i < set.size(); ++i)
+ os << set[i] << ::std::endl;
+ }
+ return os;
+}
+
+namespace test {
+namespace {
+
+template <TagType tag_type, Tag tag, typename ValueT>
+bool contains(hidl_vec<KeyParameter>& set, TypedTag<tag_type, tag> ttag, ValueT expected_value) {
+ size_t count = std::count_if(set.begin(), set.end(), [&](const KeyParameter& param) {
+ return param.tag == tag && accessTagValue(ttag, param) == expected_value;
+ });
+ return count == 1;
+}
+
+template <TagType tag_type, Tag tag>
+bool contains(hidl_vec<KeyParameter>& set, TypedTag<tag_type, tag>) {
+ size_t count = std::count_if(set.begin(), set.end(),
+ [&](const KeyParameter& param) { return param.tag == tag; });
+ return count > 0;
+}
+
+constexpr char hex_value[256] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, // '0'..'9'
+ 0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 'A'..'F'
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //
+ 0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 'a'..'f'
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+
+string hex2str(string a) {
+ string b;
+ size_t num = a.size() / 2;
+ b.resize(num);
+ for (size_t i = 0; i < num; i++) {
+ b[i] = (hex_value[a[i * 2] & 0xFF] << 4) + (hex_value[a[i * 2 + 1] & 0xFF]);
+ }
+ return b;
+}
+
+string rsa_key = hex2str("30820275020100300d06092a864886f70d01010105000482025f3082025b"
+ "02010002818100c6095409047d8634812d5a218176e45c41d60a75b13901"
+ "f234226cffe776521c5a77b9e389417b71c0b6a44d13afe4e4a2805d46c9"
+ "da2935adb1ff0c1f24ea06e62b20d776430a4d435157233c6f916783c30e"
+ "310fcbd89b85c2d56771169785ac12bca244abda72bfb19fc44d27c81e1d"
+ "92de284f4061edfd99280745ea6d2502030100010281801be0f04d9cae37"
+ "18691f035338308e91564b55899ffb5084d2460e6630257e05b3ceab0297"
+ "2dfabcd6ce5f6ee2589eb67911ed0fac16e43a444b8c861e544a05933657"
+ "72f8baf6b22fc9e3c5f1024b063ac080a7b2234cf8aee8f6c47bbf4fd3ac"
+ "e7240290bef16c0b3f7f3cdd64ce3ab5912cf6e32f39ab188358afcccd80"
+ "81024100e4b49ef50f765d3b24dde01aceaaf130f2c76670a91a61ae08af"
+ "497b4a82be6dee8fcdd5e3f7ba1cfb1f0c926b88f88c92bfab137fba2285"
+ "227b83c342ff7c55024100ddabb5839c4c7f6bf3d4183231f005b31aa58a"
+ "ffdda5c79e4cce217f6bc930dbe563d480706c24e9ebfcab28a6cdefd324"
+ "b77e1bf7251b709092c24ff501fd91024023d4340eda3445d8cd26c14411"
+ "da6fdca63c1ccd4b80a98ad52b78cc8ad8beb2842c1d280405bc2f6c1bea"
+ "214a1d742ab996b35b63a82a5e470fa88dbf823cdd02401b7b57449ad30d"
+ "1518249a5f56bb98294d4b6ac12ffc86940497a5a5837a6cf946262b4945"
+ "26d328c11e1126380fde04c24f916dec250892db09a6d77cdba351024077"
+ "62cd8f4d050da56bd591adb515d24d7ccd32cca0d05f866d583514bd7324"
+ "d5f33645e8ed8b4a1cb3cc4a1d67987399f2a09f5b3fb68c88d5e5d90ac3"
+ "3492d6");
+
+string ec_key = hex2str("308187020100301306072a8648ce3d020106082a8648ce3d030107046d30"
+ "6b0201010420737c2ecd7b8d1940bf2930aa9b4ed3ff941eed09366bc032"
+ "99986481f3a4d859a14403420004bf85d7720d07c25461683bc648b4778a"
+ "9a14dd8a024e3bdd8c7ddd9ab2b528bbc7aa1b51f14ebbbb0bd0ce21bcc4"
+ "1c6eb00083cf3376d11fd44949e0b2183bfe");
+
+struct RSA_Delete {
+ void operator()(RSA* p) { RSA_free(p); }
+};
+
+X509* parse_cert_blob(const hidl_vec<uint8_t>& blob) {
+ const uint8_t* p = blob.data();
+ return d2i_X509(nullptr, &p, blob.size());
+}
+
+bool verify_chain(const hidl_vec<hidl_vec<uint8_t>>& chain) {
+ for (size_t i = 0; i < chain.size() - 1; ++i) {
+ auto& key_cert_blob = chain[i];
+ auto& signing_cert_blob = chain[i + 1];
+
+ X509_Ptr key_cert(parse_cert_blob(key_cert_blob));
+ X509_Ptr signing_cert(parse_cert_blob(signing_cert_blob));
+ EXPECT_TRUE(!!key_cert.get() && !!signing_cert.get());
+ if (!key_cert.get() || !signing_cert.get()) return false;
+
+ EVP_PKEY_Ptr signing_pubkey(X509_get_pubkey(signing_cert.get()));
+ EXPECT_TRUE(!!signing_pubkey.get());
+ if (!signing_pubkey.get()) return false;
+
+ EXPECT_EQ(1, X509_verify(key_cert.get(), signing_pubkey.get()))
+ << "Verification of certificate " << i << " failed";
+ }
+
+ return true;
+}
+
+// Extract attestation record from cert. Returned object is still part of cert; don't free it
+// separately.
+ASN1_OCTET_STRING* get_attestation_record(X509* certificate) {
+ ASN1_OBJECT_Ptr oid(OBJ_txt2obj(kAttestionRecordOid, 1 /* dotted string format */));
+ EXPECT_TRUE(!!oid.get());
+ if (!oid.get()) return nullptr;
+
+ int location = X509_get_ext_by_OBJ(certificate, oid.get(), -1 /* search from beginning */);
+ EXPECT_NE(-1, location);
+ if (location == -1) return nullptr;
+
+ X509_EXTENSION* attest_rec_ext = X509_get_ext(certificate, location);
+ EXPECT_TRUE(!!attest_rec_ext);
+ if (!attest_rec_ext) return nullptr;
+
+ ASN1_OCTET_STRING* attest_rec = X509_EXTENSION_get_data(attest_rec_ext);
+ EXPECT_TRUE(!!attest_rec);
+ return attest_rec;
+}
+
+bool tag_in_list(const KeyParameter& entry) {
+ // Attestations don't contain everything in key authorization lists, so we need to filter
+ // the key lists to produce the lists that we expect to match the attestations.
+ auto tag_list = {
+ Tag::USER_ID, Tag::INCLUDE_UNIQUE_ID, Tag::BLOB_USAGE_REQUIREMENTS,
+ Tag::EC_CURVE /* Tag::EC_CURVE will be included by KM2 implementations */,
+ };
+ return std::find(tag_list.begin(), tag_list.end(), entry.tag) != tag_list.end();
+}
+
+AuthorizationSet filter_tags(const AuthorizationSet& set) {
+ AuthorizationSet filtered;
+ std::remove_copy_if(set.begin(), set.end(), std::back_inserter(filtered), tag_in_list);
+ return filtered;
+}
+
+std::string make_string(const uint8_t* data, size_t length) {
+ return std::string(reinterpret_cast<const char*>(data), length);
+}
+
+template <size_t N> std::string make_string(const uint8_t (&a)[N]) {
+ return make_string(a, N);
+}
+
+class HidlBuf : public hidl_vec<uint8_t> {
+ typedef hidl_vec<uint8_t> super;
+
+ public:
+ HidlBuf() {}
+ HidlBuf(const super& other) : super(other) {}
+ HidlBuf(super&& other) : super(std::move(other)) {}
+ explicit HidlBuf(const std::string& other) : HidlBuf() { *this = other; }
+
+ HidlBuf& operator=(const super& other) {
+ super::operator=(other);
+ return *this;
+ }
+
+ HidlBuf& operator=(super&& other) {
+ super::operator=(std::move(other));
+ return *this;
+ }
+
+ HidlBuf& operator=(const string& other) {
+ resize(other.size());
+ for (size_t i = 0; i < other.size(); ++i) {
+ (*this)[i] = static_cast<uint8_t>(other[i]);
+ }
+ return *this;
+ }
+
+ string to_string() const { return string(reinterpret_cast<const char*>(data()), size()); }
+};
+
+constexpr uint64_t kOpHandleSentinel = 0xFFFFFFFFFFFFFFFF;
+
+} // namespace
+
+class KeymasterHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+ public:
+ void TearDown() override {
+ if (key_blob_.size()) {
+ EXPECT_EQ(ErrorCode::OK, DeleteKey());
+ }
+ AbortIfNeeded();
+ }
+
+ // SetUpTestCase runs only once per test case, not once per test.
+ static void SetUpTestCase() {
+ keymaster_ = IKeymasterDevice::getService(service_name);
+ ASSERT_NE(keymaster_, nullptr);
+
+ ASSERT_TRUE(
+ keymaster_
+ ->getHardwareFeatures([&](bool isSecure, bool supportsEc, bool supportsSymmetric,
+ bool supportsAttestation, bool supportsAllDigests,
+ const hidl_string& name, const hidl_string& author) {
+ is_secure_ = isSecure;
+ supports_ec_ = supportsEc;
+ supports_symmetric_ = supportsSymmetric;
+ supports_attestation_ = supportsAttestation;
+ supports_all_digests_ = supportsAllDigests;
+ name_ = name;
+ author_ = author;
+ })
+ .isOk());
+
+ os_version_ = ::keymaster::GetOsVersion();
+ os_patch_level_ = ::keymaster::GetOsPatchlevel();
+ }
+
+ static void TearDownTestCase() { keymaster_.clear(); }
+
+ static IKeymasterDevice& keymaster() { return *keymaster_; }
+ static uint32_t os_version() { return os_version_; }
+ static uint32_t os_patch_level() { return os_patch_level_; }
+
+ AuthorizationSet UserAuths() { return AuthorizationSetBuilder().Authorization(TAG_USER_ID, 7); }
+
+ ErrorCode GenerateKey(const AuthorizationSet& key_desc, HidlBuf* key_blob,
+ KeyCharacteristics* key_characteristics) {
+ EXPECT_NE(key_blob, nullptr);
+ EXPECT_NE(key_characteristics, nullptr);
+ EXPECT_EQ(0U, key_blob->size());
+
+ ErrorCode error;
+ EXPECT_TRUE(keymaster_
+ ->generateKey(key_desc.hidl_data(),
+ [&](ErrorCode hidl_error, const HidlBuf& hidl_key_blob,
+ const KeyCharacteristics& hidl_key_characteristics) {
+ error = hidl_error;
+ *key_blob = hidl_key_blob;
+ *key_characteristics = hidl_key_characteristics;
+ })
+ .isOk());
+ // On error, blob & characteristics should be empty.
+ if (error != ErrorCode::OK) {
+ EXPECT_EQ(0U, key_blob->size());
+ EXPECT_EQ(0U, (key_characteristics->softwareEnforced.size() +
+ key_characteristics->teeEnforced.size()));
+ }
+ return error;
+ }
+
+ ErrorCode GenerateKey(const AuthorizationSet& key_desc) {
+ return GenerateKey(key_desc, &key_blob_, &key_characteristics_);
+ }
+
+ ErrorCode ImportKey(const AuthorizationSet& key_desc, KeyFormat format,
+ const string& key_material, HidlBuf* key_blob,
+ KeyCharacteristics* key_characteristics) {
+ ErrorCode error;
+ EXPECT_TRUE(keymaster_
+ ->importKey(key_desc.hidl_data(), format, HidlBuf(key_material),
+ [&](ErrorCode hidl_error, const HidlBuf& hidl_key_blob,
+ const KeyCharacteristics& hidl_key_characteristics) {
+ error = hidl_error;
+ *key_blob = hidl_key_blob;
+ *key_characteristics = hidl_key_characteristics;
+ })
+ .isOk());
+ // On error, blob & characteristics should be empty.
+ if (error != ErrorCode::OK) {
+ EXPECT_EQ(0U, key_blob->size());
+ EXPECT_EQ(0U, (key_characteristics->softwareEnforced.size() +
+ key_characteristics->teeEnforced.size()));
+ }
+ return error;
+ }
+
+ ErrorCode ImportKey(const AuthorizationSet& key_desc, KeyFormat format,
+ const string& key_material) {
+ return ImportKey(key_desc, format, key_material, &key_blob_, &key_characteristics_);
+ }
+
+ ErrorCode ExportKey(KeyFormat format, const HidlBuf& key_blob, const HidlBuf& client_id,
+ const HidlBuf& app_data, HidlBuf* key_material) {
+ ErrorCode error;
+ EXPECT_TRUE(
+ keymaster_
+ ->exportKey(format, key_blob, client_id, app_data,
+ [&](ErrorCode hidl_error_code, const HidlBuf& hidl_key_material) {
+ error = hidl_error_code;
+ *key_material = hidl_key_material;
+ })
+ .isOk());
+ // On error, blob should be empty.
+ if (error != ErrorCode::OK) {
+ EXPECT_EQ(0U, key_material->size());
+ }
+ return error;
+ }
+
+ ErrorCode ExportKey(KeyFormat format, HidlBuf* key_material) {
+ HidlBuf client_id, app_data;
+ return ExportKey(format, key_blob_, client_id, app_data, key_material);
+ }
+
+ ErrorCode DeleteKey(HidlBuf* key_blob) {
+ ErrorCode error = keymaster_->deleteKey(*key_blob);
+ *key_blob = HidlBuf();
+ return error;
+ }
+
+ ErrorCode DeleteKey() { return DeleteKey(&key_blob_); }
+
+ ErrorCode GetCharacteristics(const HidlBuf& key_blob, const HidlBuf& client_id,
+ const HidlBuf& app_data, KeyCharacteristics* key_characteristics) {
+ ErrorCode error;
+ keymaster_->getKeyCharacteristics(
+ key_blob, client_id, app_data,
+ [&](ErrorCode hidl_error, const KeyCharacteristics& hidl_key_characteristics) {
+ error = hidl_error, *key_characteristics = hidl_key_characteristics;
+ });
+ return error;
+ }
+
+ ErrorCode GetCharacteristics(const HidlBuf& key_blob, KeyCharacteristics* key_characteristics) {
+ HidlBuf client_id, app_data;
+ return GetCharacteristics(key_blob, client_id, app_data, key_characteristics);
+ }
+
+ ErrorCode Begin(KeyPurpose purpose, const HidlBuf& key_blob, const AuthorizationSet& in_params,
+ AuthorizationSet* out_params, OperationHandle* op_handle) {
+ SCOPED_TRACE("Begin");
+ ErrorCode error;
+ OperationHandle saved_handle = *op_handle;
+ EXPECT_TRUE(
+ keymaster_
+ ->begin(purpose, key_blob, in_params.hidl_data(),
+ [&](ErrorCode hidl_error, const hidl_vec<KeyParameter>& hidl_out_params,
+ uint64_t hidl_op_handle) {
+ error = hidl_error;
+ *out_params = hidl_out_params;
+ *op_handle = hidl_op_handle;
+ })
+ .isOk());
+ if (error != ErrorCode::OK) {
+ // Some implementations may modify *op_handle on error.
+ *op_handle = saved_handle;
+ }
+ return error;
+ }
+
+ ErrorCode Begin(KeyPurpose purpose, const AuthorizationSet& in_params,
+ AuthorizationSet* out_params) {
+ SCOPED_TRACE("Begin");
+ EXPECT_EQ(kOpHandleSentinel, op_handle_);
+ return Begin(purpose, key_blob_, in_params, out_params, &op_handle_);
+ }
+
+ ErrorCode Begin(KeyPurpose purpose, const AuthorizationSet& in_params) {
+ SCOPED_TRACE("Begin");
+ AuthorizationSet out_params;
+ ErrorCode error = Begin(purpose, in_params, &out_params);
+ EXPECT_TRUE(out_params.empty());
+ return error;
+ }
+
+ ErrorCode Update(OperationHandle op_handle, const AuthorizationSet& in_params,
+ const string& input, AuthorizationSet* out_params, string* output,
+ size_t* input_consumed) {
+ SCOPED_TRACE("Update");
+ ErrorCode error;
+ EXPECT_TRUE(keymaster_
+ ->update(op_handle, in_params.hidl_data(), HidlBuf(input),
+ [&](ErrorCode hidl_error, uint32_t hidl_input_consumed,
+ const hidl_vec<KeyParameter>& hidl_out_params,
+ const HidlBuf& hidl_output) {
+ error = hidl_error;
+ out_params->push_back(AuthorizationSet(hidl_out_params));
+ output->append(hidl_output.to_string());
+ *input_consumed = hidl_input_consumed;
+ })
+ .isOk());
+ return error;
+ }
+
+ ErrorCode Update(const string& input, string* out, size_t* input_consumed) {
+ SCOPED_TRACE("Update");
+ AuthorizationSet out_params;
+ ErrorCode error = Update(op_handle_, AuthorizationSet() /* in_params */, input, &out_params,
+ out, input_consumed);
+ EXPECT_TRUE(out_params.empty());
+ return error;
+ }
+
+ ErrorCode Finish(OperationHandle op_handle, const AuthorizationSet& in_params,
+ const string& input, const string& signature, AuthorizationSet* out_params,
+ string* output) {
+ SCOPED_TRACE("Finish");
+ ErrorCode error;
+ EXPECT_TRUE(
+ keymaster_
+ ->finish(op_handle, in_params.hidl_data(), HidlBuf(input), HidlBuf(signature),
+ [&](ErrorCode hidl_error, const hidl_vec<KeyParameter>& hidl_out_params,
+ const HidlBuf& hidl_output) {
+ error = hidl_error;
+ *out_params = hidl_out_params;
+ output->append(hidl_output.to_string());
+ })
+ .isOk());
+ op_handle_ = kOpHandleSentinel; // So dtor doesn't Abort().
+ return error;
+ }
+
+ ErrorCode Finish(const string& message, string* output) {
+ SCOPED_TRACE("Finish");
+ AuthorizationSet out_params;
+ string finish_output;
+ ErrorCode error = Finish(op_handle_, AuthorizationSet() /* in_params */, message,
+ "" /* signature */, &out_params, output);
+ if (error != ErrorCode::OK) {
+ return error;
+ }
+ EXPECT_EQ(0U, out_params.size());
+ return error;
+ }
+
+ ErrorCode Finish(const string& message, const string& signature, string* output) {
+ SCOPED_TRACE("Finish");
+ AuthorizationSet out_params;
+ ErrorCode error = Finish(op_handle_, AuthorizationSet() /* in_params */, message, signature,
+ &out_params, output);
+ op_handle_ = kOpHandleSentinel; // So dtor doesn't Abort().
+ if (error != ErrorCode::OK) {
+ return error;
+ }
+ EXPECT_EQ(0U, out_params.size());
+ return error;
+ }
+
+ ErrorCode Abort(OperationHandle op_handle) {
+ SCOPED_TRACE("Abort");
+ auto retval = keymaster_->abort(op_handle);
+ EXPECT_TRUE(retval.isOk());
+ return retval;
+ }
+
+ void AbortIfNeeded() {
+ SCOPED_TRACE("AbortIfNeeded");
+ if (op_handle_ != kOpHandleSentinel) {
+ EXPECT_EQ(ErrorCode::OK, Abort(op_handle_));
+ op_handle_ = kOpHandleSentinel;
+ }
+ }
+
+ ErrorCode AttestKey(const HidlBuf& key_blob, const AuthorizationSet& attest_params,
+ hidl_vec<hidl_vec<uint8_t>>* cert_chain) {
+ SCOPED_TRACE("AttestKey");
+ ErrorCode error;
+ keymaster_->attestKey(
+ key_blob, attest_params.hidl_data(),
+ [&](ErrorCode hidl_error, const hidl_vec<hidl_vec<uint8_t>>& hidl_cert_chain) {
+ error = hidl_error;
+ *cert_chain = hidl_cert_chain;
+ });
+ return error;
+ }
+
+ ErrorCode AttestKey(const AuthorizationSet& attest_params,
+ hidl_vec<hidl_vec<uint8_t>>* cert_chain) {
+ SCOPED_TRACE("AttestKey");
+ return AttestKey(key_blob_, attest_params, cert_chain);
+ }
+
+ string ProcessMessage(const HidlBuf& key_blob, KeyPurpose operation, const string& message,
+ const AuthorizationSet& in_params, AuthorizationSet* out_params) {
+ SCOPED_TRACE("ProcessMessage");
+ AuthorizationSet begin_out_params;
+ EXPECT_EQ(ErrorCode::OK,
+ Begin(operation, key_blob, in_params, &begin_out_params, &op_handle_));
+
+ string unused;
+ AuthorizationSet finish_params;
+ AuthorizationSet finish_out_params;
+ string output;
+ EXPECT_EQ(ErrorCode::OK,
+ Finish(op_handle_, finish_params, message, unused, &finish_out_params, &output));
+ op_handle_ = kOpHandleSentinel;
+
+ out_params->push_back(begin_out_params);
+ out_params->push_back(finish_out_params);
+ return output;
+ }
+
+ string SignMessage(const HidlBuf& key_blob, const string& message,
+ const AuthorizationSet& params) {
+ SCOPED_TRACE("SignMessage");
+ AuthorizationSet out_params;
+ string signature = ProcessMessage(key_blob, KeyPurpose::SIGN, message, params, &out_params);
+ EXPECT_TRUE(out_params.empty());
+ return signature;
+ }
+
+ string SignMessage(const string& message, const AuthorizationSet& params) {
+ SCOPED_TRACE("SignMessage");
+ return SignMessage(key_blob_, message, params);
+ }
+
+ string MacMessage(const string& message, Digest digest, size_t mac_length) {
+ SCOPED_TRACE("MacMessage");
+ return SignMessage(
+ key_blob_, message,
+ AuthorizationSetBuilder().Digest(digest).Authorization(TAG_MAC_LENGTH, mac_length));
+ }
+
+ void CheckHmacTestVector(const string& key, const string& message, Digest digest,
+ const string& expected_mac) {
+ SCOPED_TRACE("CheckHmacTestVector");
+ ASSERT_EQ(ErrorCode::OK,
+ ImportKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .HmacKey(key.size() * 8)
+ .Authorization(TAG_MIN_MAC_LENGTH, expected_mac.size() * 8)
+ .Digest(digest),
+ KeyFormat::RAW, key));
+ string signature = MacMessage(message, digest, expected_mac.size() * 8);
+ EXPECT_EQ(expected_mac, signature) << "Test vector didn't match for digest " << (int)digest;
+ DeleteKey();
+ }
+
+ void CheckAesCtrTestVector(const string& key, const string& nonce, const string& message,
+ const string& expected_ciphertext) {
+ SCOPED_TRACE("CheckAesCtrTestVector");
+ ASSERT_EQ(ErrorCode::OK, ImportKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(key.size() * 8)
+ .BlockMode(BlockMode::CTR)
+ .Authorization(TAG_CALLER_NONCE)
+ .Padding(PaddingMode::NONE),
+ KeyFormat::RAW, key));
+
+ auto params = AuthorizationSetBuilder()
+ .Authorization(TAG_NONCE, nonce.data(), nonce.size())
+ .BlockMode(BlockMode::CTR)
+ .Padding(PaddingMode::NONE);
+ AuthorizationSet out_params;
+ string ciphertext = EncryptMessage(key_blob_, message, params, &out_params);
+ EXPECT_EQ(expected_ciphertext, ciphertext);
+ }
+
+ void VerifyMessage(const HidlBuf& key_blob, const string& message, const string& signature,
+ const AuthorizationSet& params) {
+ SCOPED_TRACE("VerifyMessage");
+ AuthorizationSet begin_out_params;
+ ASSERT_EQ(ErrorCode::OK,
+ Begin(KeyPurpose::VERIFY, key_blob, params, &begin_out_params, &op_handle_));
+
+ string unused;
+ AuthorizationSet finish_params;
+ AuthorizationSet finish_out_params;
+ string output;
+ EXPECT_EQ(ErrorCode::OK, Finish(op_handle_, finish_params, message, signature,
+ &finish_out_params, &output));
+ op_handle_ = kOpHandleSentinel;
+ EXPECT_TRUE(output.empty());
+ }
+
+ void VerifyMessage(const string& message, const string& signature,
+ const AuthorizationSet& params) {
+ SCOPED_TRACE("VerifyMessage");
+ VerifyMessage(key_blob_, message, signature, params);
+ }
+
+ string EncryptMessage(const HidlBuf& key_blob, const string& message,
+ const AuthorizationSet& in_params, AuthorizationSet* out_params) {
+ SCOPED_TRACE("EncryptMessage");
+ return ProcessMessage(key_blob, KeyPurpose::ENCRYPT, message, in_params, out_params);
+ }
+
+ string EncryptMessage(const string& message, const AuthorizationSet& params,
+ AuthorizationSet* out_params) {
+ SCOPED_TRACE("EncryptMessage");
+ return EncryptMessage(key_blob_, message, params, out_params);
+ }
+
+ string EncryptMessage(const string& message, const AuthorizationSet& params) {
+ SCOPED_TRACE("EncryptMessage");
+ AuthorizationSet out_params;
+ string ciphertext = EncryptMessage(message, params, &out_params);
+ EXPECT_TRUE(out_params.empty())
+ << "Output params should be empty. Contained: " << out_params;
+ return ciphertext;
+ }
+
+ string DecryptMessage(const HidlBuf& key_blob, const string& ciphertext,
+ const AuthorizationSet& params) {
+ SCOPED_TRACE("DecryptMessage");
+ AuthorizationSet out_params;
+ string plaintext =
+ ProcessMessage(key_blob, KeyPurpose::DECRYPT, ciphertext, params, &out_params);
+ EXPECT_TRUE(out_params.empty());
+ return plaintext;
+ }
+
+ string DecryptMessage(const string& ciphertext, const AuthorizationSet& params) {
+ SCOPED_TRACE("DecryptMessage");
+ return DecryptMessage(key_blob_, ciphertext, params);
+ }
+
+ template <TagType tag_type, Tag tag, typename ValueT>
+ void CheckKm0CryptoParam(TypedTag<tag_type, tag> ttag, ValueT expected) {
+ SCOPED_TRACE("CheckKm0CryptoParam");
+ if (is_secure_) {
+ EXPECT_TRUE(contains(key_characteristics_.teeEnforced, ttag, expected));
+ EXPECT_FALSE(contains(key_characteristics_.softwareEnforced, ttag));
+ } else {
+ EXPECT_TRUE(contains(key_characteristics_.softwareEnforced, ttag, expected));
+ EXPECT_FALSE(contains(key_characteristics_.teeEnforced, ttag));
+ }
+ }
+
+ template <TagType tag_type, Tag tag, typename ValueT>
+ void CheckKm1CryptoParam(TypedTag<tag_type, tag> ttag, ValueT expected) {
+ SCOPED_TRACE("CheckKm1CryptoParam");
+ if (is_secure_ && supports_symmetric_) {
+ EXPECT_TRUE(contains(key_characteristics_.teeEnforced, ttag, expected));
+ EXPECT_FALSE(contains(key_characteristics_.softwareEnforced, ttag));
+ } else {
+ EXPECT_TRUE(contains(key_characteristics_.softwareEnforced, ttag, expected));
+ EXPECT_FALSE(contains(key_characteristics_.teeEnforced, ttag));
+ }
+ }
+
+ template <TagType tag_type, Tag tag, typename ValueT>
+ void CheckKm2CryptoParam(TypedTag<tag_type, tag> ttag, ValueT expected) {
+ SCOPED_TRACE("CheckKm2CryptoParam");
+ if (supports_attestation_) {
+ EXPECT_TRUE(contains(key_characteristics_.teeEnforced, ttag, expected));
+ EXPECT_FALSE(contains(key_characteristics_.softwareEnforced, ttag));
+ } else if (!supports_symmetric_ /* KM version < 1 or SW */) {
+ EXPECT_TRUE(contains(key_characteristics_.softwareEnforced, ttag, expected));
+ EXPECT_FALSE(contains(key_characteristics_.teeEnforced, ttag));
+ }
+ }
+
+ void CheckOrigin() {
+ SCOPED_TRACE("CheckOrigin");
+ if (is_secure_ && supports_symmetric_) {
+ EXPECT_TRUE(
+ contains(key_characteristics_.teeEnforced, TAG_ORIGIN, KeyOrigin::IMPORTED));
+ } else if (is_secure_) {
+ EXPECT_TRUE(contains(key_characteristics_.teeEnforced, TAG_ORIGIN, KeyOrigin::UNKNOWN));
+ } else {
+ EXPECT_TRUE(
+ contains(key_characteristics_.softwareEnforced, TAG_ORIGIN, KeyOrigin::IMPORTED));
+ }
+ }
+
+ static bool IsSecure() { return is_secure_; }
+ static bool SupportsEc() { return supports_ec_; }
+ static bool SupportsSymmetric() { return supports_symmetric_; }
+ static bool SupportsAllDigests() { return supports_all_digests_; }
+ static bool SupportsAttestation() { return supports_attestation_; }
+
+ static bool Km2Profile() {
+ return SupportsAttestation() && SupportsAllDigests() && SupportsSymmetric() &&
+ SupportsEc() && IsSecure();
+ }
+
+ static bool Km1Profile() {
+ return !SupportsAttestation() && SupportsSymmetric() && SupportsEc() && IsSecure();
+ }
+
+ static bool Km0Profile() {
+ return !SupportsAttestation() && !SupportsAllDigests() && !SupportsSymmetric() &&
+ IsSecure();
+ }
+
+ static bool SwOnlyProfile() {
+ return !SupportsAttestation() && !SupportsAllDigests() && !SupportsSymmetric() &&
+ !SupportsEc() && !IsSecure();
+ }
+
+ HidlBuf key_blob_;
+ KeyCharacteristics key_characteristics_;
+ OperationHandle op_handle_ = kOpHandleSentinel;
+
+ private:
+ static sp<IKeymasterDevice> keymaster_;
+ static uint32_t os_version_;
+ static uint32_t os_patch_level_;
+
+ static bool is_secure_;
+ static bool supports_ec_;
+ static bool supports_symmetric_;
+ static bool supports_attestation_;
+ static bool supports_all_digests_;
+ static hidl_string name_;
+ static hidl_string author_;
+};
+
+uint32_t expected_keymaster_version() {
+ if (!KeymasterHidlTest::IsSecure()) return 2; // SW is KM2
+
+ uint32_t keymaster_version = 0;
+ if (KeymasterHidlTest::SupportsSymmetric()) keymaster_version = 1;
+ if (KeymasterHidlTest::SupportsAttestation()) keymaster_version = 2;
+ return keymaster_version;
+}
+
+bool verify_attestation_record(const string& challenge, AuthorizationSet expected_sw_enforced,
+ AuthorizationSet expected_tee_enforced,
+ const hidl_vec<uint8_t>& attestation_cert) {
+
+ X509_Ptr cert(parse_cert_blob(attestation_cert));
+ EXPECT_TRUE(!!cert.get());
+ if (!cert.get()) return false;
+
+ ASN1_OCTET_STRING* attest_rec = get_attestation_record(cert.get());
+ EXPECT_TRUE(!!attest_rec);
+ if (!attest_rec) return false;
+
+ AuthorizationSet att_sw_enforced;
+ AuthorizationSet att_tee_enforced;
+ uint32_t att_attestation_version;
+ uint32_t att_keymaster_version;
+ SecurityLevel att_attestation_security_level;
+ SecurityLevel att_keymaster_security_level;
+ HidlBuf att_challenge;
+ HidlBuf att_unique_id;
+ EXPECT_EQ(ErrorCode::OK,
+ parse_attestation_record(attest_rec->data, //
+ attest_rec->length, //
+ &att_attestation_version, //
+ &att_attestation_security_level, //
+ &att_keymaster_version, //
+ &att_keymaster_security_level, //
+ &att_challenge, //
+ &att_sw_enforced, //
+ &att_tee_enforced, //
+ &att_unique_id));
+
+ EXPECT_EQ(1U, att_attestation_version);
+ EXPECT_EQ(expected_keymaster_version(), att_keymaster_version);
+ EXPECT_EQ(KeymasterHidlTest::IsSecure() ? SecurityLevel::TRUSTED_ENVIRONMENT
+ : SecurityLevel::SOFTWARE,
+ att_keymaster_security_level);
+ EXPECT_EQ(KeymasterHidlTest::SupportsAttestation() ? SecurityLevel::TRUSTED_ENVIRONMENT
+ : SecurityLevel::SOFTWARE,
+ att_attestation_security_level);
+
+ EXPECT_EQ(challenge.length(), att_challenge.size());
+ EXPECT_EQ(0, memcmp(challenge.data(), att_challenge.data(), challenge.length()));
+
+ att_sw_enforced.Sort();
+ expected_sw_enforced.Sort();
+ EXPECT_EQ(filter_tags(expected_sw_enforced), filter_tags(att_sw_enforced));
+
+ att_tee_enforced.Sort();
+ expected_tee_enforced.Sort();
+ EXPECT_EQ(filter_tags(expected_tee_enforced), filter_tags(att_tee_enforced));
+
+ return true;
+}
+
+sp<IKeymasterDevice> KeymasterHidlTest::keymaster_;
+uint32_t KeymasterHidlTest::os_version_;
+uint32_t KeymasterHidlTest::os_patch_level_;
+bool KeymasterHidlTest::is_secure_;
+bool KeymasterHidlTest::supports_ec_;
+bool KeymasterHidlTest::supports_symmetric_;
+bool KeymasterHidlTest::supports_all_digests_;
+bool KeymasterHidlTest::supports_attestation_;
+hidl_string KeymasterHidlTest::name_;
+hidl_string KeymasterHidlTest::author_;
+
+typedef KeymasterHidlTest KeymasterVersionTest;
+
+/*
+ * KeymasterVersionTest.SensibleFeatures:
+ *
+ * Queries keymaster to find the set of features it supports. Fails if the combination doesn't
+ * correspond to any well-defined keymaster version.
+ */
+TEST_F(KeymasterVersionTest, SensibleFeatures) {
+ EXPECT_TRUE(Km2Profile() || Km1Profile() || Km0Profile() || SwOnlyProfile())
+ << "Keymaster feature set doesn't fit any reasonable profile. Reported features:"
+ << "SupportsAttestation [" << SupportsAttestation() << "], "
+ << "SupportsSymmetric [" << SupportsSymmetric() << "], "
+ << "SupportsAllDigests [" << SupportsAllDigests() << "], "
+ << "SupportsEc [" << SupportsEc() << "], "
+ << "IsSecure [" << IsSecure() << "]";
+}
+
+class NewKeyGenerationTest : public KeymasterHidlTest {
+ protected:
+ void CheckBaseParams(const KeyCharacteristics& keyCharacteristics) {
+ // TODO(swillden): Distinguish which params should be in which auth list.
+
+ AuthorizationSet auths(keyCharacteristics.teeEnforced);
+ auths.push_back(AuthorizationSet(keyCharacteristics.softwareEnforced));
+
+ EXPECT_TRUE(auths.Contains(TAG_ORIGIN, KeyOrigin::GENERATED));
+
+ EXPECT_TRUE(auths.Contains(TAG_PURPOSE, KeyPurpose::SIGN));
+ EXPECT_TRUE(auths.Contains(TAG_PURPOSE, KeyPurpose::VERIFY));
+ EXPECT_TRUE(auths.Contains(TAG_USER_ID, 7))
+ << "User ID should be 7, was " << auths.GetTagValue(TAG_USER_ID);
+
+ // Verify that App ID, App data and ROT are NOT included.
+ EXPECT_FALSE(auths.Contains(TAG_ROOT_OF_TRUST));
+ EXPECT_FALSE(auths.Contains(TAG_APPLICATION_ID));
+ EXPECT_FALSE(auths.Contains(TAG_APPLICATION_DATA));
+
+ // Check that some unexpected tags/values are NOT present.
+ EXPECT_FALSE(auths.Contains(TAG_PURPOSE, KeyPurpose::ENCRYPT));
+ EXPECT_FALSE(auths.Contains(TAG_PURPOSE, KeyPurpose::DECRYPT));
+ EXPECT_FALSE(auths.Contains(TAG_AUTH_TIMEOUT, 301));
+
+ // Now check that unspecified, defaulted tags are correct.
+ EXPECT_TRUE(auths.Contains(TAG_CREATION_DATETIME));
+
+ if (SupportsAttestation()) {
+ EXPECT_TRUE(auths.Contains(TAG_OS_VERSION, os_version()))
+ << "OS version is " << os_version() << " key reported "
+ << auths.GetTagValue(TAG_OS_VERSION);
+ EXPECT_TRUE(auths.Contains(TAG_OS_PATCHLEVEL, os_patch_level()))
+ << "OS patch level is " << os_patch_level() << " key reported "
+ << auths.GetTagValue(TAG_OS_PATCHLEVEL);
+ }
+ }
+};
+
+/*
+ * NewKeyGenerationTest.Rsa
+ *
+ * Verifies that keymaster can generate all required RSA key sizes, and that the resulting keys have
+ * correct characteristics.
+ */
+TEST_F(NewKeyGenerationTest, Rsa) {
+ for (auto key_size : {1024, 2048, 3072, 4096}) {
+ HidlBuf key_blob;
+ KeyCharacteristics key_characteristics;
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .RsaSigningKey(key_size, 3)
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::NONE)
+ .Authorizations(UserAuths()),
+ &key_blob, &key_characteristics));
+
+ ASSERT_GT(key_blob.size(), 0U);
+ CheckBaseParams(key_characteristics);
+
+ AuthorizationSet crypto_params;
+ if (IsSecure()) {
+ crypto_params = key_characteristics.teeEnforced;
+ } else {
+ crypto_params = key_characteristics.softwareEnforced;
+ }
+
+ EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, KM_ALGORITHM_RSA));
+ EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size));
+ EXPECT_TRUE(crypto_params.Contains(TAG_RSA_PUBLIC_EXPONENT, 3));
+
+ EXPECT_EQ(ErrorCode::OK, DeleteKey(&key_blob));
+ }
+}
+
+/*
+ * NewKeyGenerationTest.RsaNoDefaultSize
+ *
+ * Verifies that failing to specify a key size for RSA key generation returns UNSUPPORTED_KEY_SIZE.
+ */
+TEST_F(NewKeyGenerationTest, RsaNoDefaultSize) {
+ ASSERT_EQ(ErrorCode::UNSUPPORTED_KEY_SIZE,
+ GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_ALGORITHM, Algorithm::RSA)
+ .Authorization(TAG_RSA_PUBLIC_EXPONENT, 3)
+ .SigningKey()));
+}
+
+/*
+ * NewKeyGenerationTest.Ecdsa
+ *
+ * Verifies that keymaster can generate all required EC key sizes, and that the resulting keys have
+ * correct characteristics.
+ */
+TEST_F(NewKeyGenerationTest, Ecdsa) {
+ for (auto key_size : {224, 256, 384, 521}) {
+ HidlBuf key_blob;
+ KeyCharacteristics key_characteristics;
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .EcdsaSigningKey(key_size)
+ .Digest(Digest::NONE)
+ .Authorizations(UserAuths()),
+ &key_blob, &key_characteristics));
+ ASSERT_GT(key_blob.size(), 0U);
+ CheckBaseParams(key_characteristics);
+
+ AuthorizationSet crypto_params;
+ if (IsSecure()) {
+ crypto_params = key_characteristics.teeEnforced;
+ } else {
+ crypto_params = key_characteristics.softwareEnforced;
+ }
+
+ EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::EC));
+ EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size));
+
+ EXPECT_EQ(ErrorCode::OK, DeleteKey(&key_blob));
+ }
+}
+
+/*
+ * NewKeyGenerationTest.EcdsaDefaultSize
+ *
+ * Verifies that failing to specify a key size for EC key generation returns UNSUPPORTED_KEY_SIZE.
+ */
+TEST_F(NewKeyGenerationTest, EcdsaDefaultSize) {
+ ASSERT_EQ(ErrorCode::UNSUPPORTED_KEY_SIZE,
+ GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_ALGORITHM, Algorithm::EC)
+ .SigningKey()
+ .Digest(Digest::NONE)));
+}
+
+/*
+ * NewKeyGenerationTest.EcdsaInvalidSize
+ *
+ * Verifies that failing to specify an invalid key size for EC key generation returns
+ * UNSUPPORTED_KEY_SIZE.
+ */
+TEST_F(NewKeyGenerationTest, EcdsaInvalidSize) {
+ ASSERT_EQ(ErrorCode::UNSUPPORTED_KEY_SIZE,
+ GenerateKey(AuthorizationSetBuilder().EcdsaSigningKey(190).Digest(Digest::NONE)));
+}
+
+/*
+ * NewKeyGenerationTest.EcdsaMismatchKeySize
+ *
+ * Verifies that specifying mismatched key size and curve for EC key generation returns
+ * INVALID_ARGUMENT.
+ */
+TEST_F(NewKeyGenerationTest, EcdsaMismatchKeySize) {
+ ASSERT_EQ(ErrorCode::INVALID_ARGUMENT,
+ GenerateKey(AuthorizationSetBuilder()
+ .EcdsaSigningKey(224)
+ .Authorization(TAG_EC_CURVE, EcCurve::P_256)
+ .Digest(Digest::NONE)))
+ << "(Possibly b/36233343)";
+}
+
+TEST_F(NewKeyGenerationTest, EcdsaAllValidSizes) {
+ size_t valid_sizes[] = {224, 256, 384, 521};
+ for (size_t size : valid_sizes) {
+ EXPECT_EQ(ErrorCode::OK,
+ GenerateKey(AuthorizationSetBuilder().EcdsaSigningKey(size).Digest(Digest::NONE)))
+ << "Failed to generate size: " << size;
+ DeleteKey();
+ }
+}
+
+/*
+ * NewKeyGenerationTest.EcdsaAllValidCurves
+ *
+ * Verifies that keymaster supports all required EC curves.
+ */
+TEST_F(NewKeyGenerationTest, EcdsaAllValidCurves) {
+ EcCurve curves[] = {EcCurve::P_224, EcCurve::P_256, EcCurve::P_384, EcCurve::P_521};
+ for (auto curve : curves) {
+ EXPECT_EQ(
+ ErrorCode::OK,
+ GenerateKey(AuthorizationSetBuilder().EcdsaSigningKey(curve).Digest(Digest::SHA_2_512)))
+ << "Failed to generate key on curve: " << curve;
+ DeleteKey();
+ }
+}
+
+/*
+ * NewKeyGenerationTest.Hmac
+ *
+ * Verifies that keymaster supports all required digests, and that the resulting keys have correct
+ * characteristics.
+ */
+TEST_F(NewKeyGenerationTest, Hmac) {
+ for (auto digest : {Digest::MD5, Digest::SHA1, Digest::SHA_2_224, Digest::SHA_2_256,
+ Digest::SHA_2_384, Digest::SHA_2_512}) {
+ HidlBuf key_blob;
+ KeyCharacteristics key_characteristics;
+ constexpr size_t key_size = 128;
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .HmacKey(key_size)
+ .Digest(digest)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128)
+ .Authorizations(UserAuths()),
+ &key_blob, &key_characteristics));
+
+ ASSERT_GT(key_blob.size(), 0U);
+ CheckBaseParams(key_characteristics);
+
+ AuthorizationSet teeEnforced = key_characteristics.teeEnforced;
+ AuthorizationSet softwareEnforced = key_characteristics.softwareEnforced;
+ if (SupportsAttestation() || SupportsAllDigests()) {
+ // Either KM2, which must support all, or KM1 that claims full support
+ EXPECT_TRUE(teeEnforced.Contains(TAG_ALGORITHM, Algorithm::HMAC));
+ EXPECT_TRUE(teeEnforced.Contains(TAG_KEY_SIZE, key_size));
+ } else if (SupportsSymmetric()) {
+ if (digest == Digest::SHA1 || digest == Digest::SHA_2_256) {
+ // KM1 must support SHA1 and SHA256 in hardware
+ EXPECT_TRUE(teeEnforced.Contains(TAG_ALGORITHM, Algorithm::HMAC));
+ EXPECT_TRUE(teeEnforced.Contains(TAG_KEY_SIZE, key_size));
+ } else {
+ // Othere digests may or may not be supported
+ EXPECT_TRUE(teeEnforced.Contains(TAG_ALGORITHM, Algorithm::HMAC) ||
+ softwareEnforced.Contains(TAG_ALGORITHM, Algorithm::HMAC));
+ EXPECT_TRUE(teeEnforced.Contains(TAG_KEY_SIZE, key_size) ||
+ softwareEnforced.Contains(TAG_KEY_SIZE, key_size));
+ }
+ } else {
+ // KM0 and SW KM do all digests in SW.
+ EXPECT_TRUE(softwareEnforced.Contains(TAG_ALGORITHM, Algorithm::HMAC));
+ EXPECT_TRUE(softwareEnforced.Contains(TAG_KEY_SIZE, key_size));
+ }
+
+ EXPECT_EQ(ErrorCode::OK, DeleteKey(&key_blob));
+ }
+}
+
+/*
+ * NewKeyGenerationTest.HmacCheckKeySizes
+ *
+ * Verifies that keymaster supports all key sizes, and rejects all invalid key sizes.
+ */
+TEST_F(NewKeyGenerationTest, HmacCheckKeySizes) {
+ for (size_t key_size = 0; key_size <= 512; ++key_size) {
+ if (key_size < 64 || key_size % 8 != 0) {
+ // To keep this test from being very slow, we only test a random fraction of non-byte
+ // key sizes. We test only ~10% of such cases. Since there are 392 of them, we expect
+ // to run ~40 of them in each run.
+ if (key_size % 8 == 0 || random() % 10 == 0) {
+ EXPECT_EQ(ErrorCode::UNSUPPORTED_KEY_SIZE,
+ GenerateKey(AuthorizationSetBuilder()
+ .HmacKey(key_size)
+ .Digest(Digest::SHA_2_256)
+ .Authorization(TAG_MIN_MAC_LENGTH, 256)))
+ << "HMAC key size " << key_size << " invalid (Possibly b/33462346)";
+ }
+ } else {
+ EXPECT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .HmacKey(key_size)
+ .Digest(Digest::SHA_2_256)
+ .Authorization(TAG_MIN_MAC_LENGTH, 256)));
+ DeleteKey();
+ }
+ }
+}
+
+/*
+ * NewKeyGenerationTest.HmacCheckMinMacLengths
+ *
+ * Verifies that keymaster supports all required MAC lengths and rejects all invalid lengths. This
+ * test is probabilistic in order to keep the runtime down, but any failure prints out the specific
+ * MAC length that failed, so reproducing a failed run will be easy.
+ */
+TEST_F(NewKeyGenerationTest, HmacCheckMinMacLengths) {
+ for (size_t min_mac_length = 0; min_mac_length <= 256; ++min_mac_length) {
+ if (min_mac_length < 64 || min_mac_length % 8 != 0) {
+ // To keep this test from being very long, we only test a random fraction of non-byte
+ // lengths. We test only ~10% of such cases. Since there are 172 of them, we expect to
+ // run ~17 of them in each run.
+ if (min_mac_length % 8 == 0 || random() % 10 == 0) {
+ EXPECT_EQ(ErrorCode::UNSUPPORTED_MIN_MAC_LENGTH,
+ GenerateKey(AuthorizationSetBuilder()
+ .HmacKey(128)
+ .Digest(Digest::SHA_2_256)
+ .Authorization(TAG_MIN_MAC_LENGTH, min_mac_length)))
+ << "HMAC min mac length " << min_mac_length << " invalid.";
+ }
+ } else {
+ EXPECT_EQ(ErrorCode::OK,
+ GenerateKey(AuthorizationSetBuilder()
+ .HmacKey(128)
+ .Digest(Digest::SHA_2_256)
+ .Authorization(TAG_MIN_MAC_LENGTH, min_mac_length)));
+ DeleteKey();
+ }
+ }
+}
+
+/*
+ * NewKeyGenerationTest.HmacMultipleDigests
+ *
+ * Verifies that keymaster rejects HMAC key generation with multiple specified digest algorithms.
+ */
+TEST_F(NewKeyGenerationTest, HmacMultipleDigests) {
+ ASSERT_EQ(ErrorCode::UNSUPPORTED_DIGEST,
+ GenerateKey(AuthorizationSetBuilder()
+ .HmacKey(128)
+ .Digest(Digest::SHA1)
+ .Digest(Digest::SHA_2_256)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128)));
+}
+
+/*
+ * NewKeyGenerationTest.HmacDigestNone
+ *
+ * Verifies that keymaster rejects HMAC key generation with no digest or Digest::NONE
+ */
+TEST_F(NewKeyGenerationTest, HmacDigestNone) {
+ ASSERT_EQ(
+ ErrorCode::UNSUPPORTED_DIGEST,
+ GenerateKey(AuthorizationSetBuilder().HmacKey(128).Authorization(TAG_MIN_MAC_LENGTH, 128)));
+
+ ASSERT_EQ(ErrorCode::UNSUPPORTED_DIGEST,
+ GenerateKey(AuthorizationSetBuilder()
+ .HmacKey(128)
+ .Digest(Digest::NONE)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128)));
+}
+
+typedef KeymasterHidlTest GetKeyCharacteristicsTest;
+
+/*
+ * GetKeyCharacteristicsTest.HmacDigestNone
+ *
+ * Verifies that getKeyCharacteristics functions, and that generated and retrieved key
+ * characteristics match.
+ */
+TEST_F(GetKeyCharacteristicsTest, SimpleRsa) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .RsaSigningKey(256, 3)
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::NONE)));
+
+ KeyCharacteristics retrieved_chars;
+ ASSERT_EQ(ErrorCode::OK, GetCharacteristics(key_blob_, &retrieved_chars));
+
+ AuthorizationSet gen_sw = key_characteristics_.softwareEnforced;
+ AuthorizationSet gen_tee = key_characteristics_.teeEnforced;
+ AuthorizationSet retrieved_sw = retrieved_chars.softwareEnforced;
+ AuthorizationSet retrieved_tee = retrieved_chars.teeEnforced;
+
+ EXPECT_EQ(gen_sw, retrieved_sw);
+ EXPECT_EQ(gen_tee, retrieved_tee);
+}
+
+typedef KeymasterHidlTest SigningOperationsTest;
+
+/*
+ * SigningOperationsTest.RsaSuccess
+ *
+ * Verifies that raw RSA signature operations succeed.
+ */
+TEST_F(SigningOperationsTest, RsaSuccess) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .RsaSigningKey(1024, 3)
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_NO_AUTH_REQUIRED)));
+ string message = "12345678901234567890123456789012";
+ string signature = SignMessage(
+ message, AuthorizationSetBuilder().Digest(Digest::NONE).Padding(PaddingMode::NONE));
+}
+
+/*
+ * SigningOperationsTest.RsaPssSha256Success
+ *
+ * Verifies that RSA-PSS signature operations succeed.
+ */
+TEST_F(SigningOperationsTest, RsaPssSha256Success) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .RsaSigningKey(1024, 3)
+ .Digest(Digest::SHA_2_256)
+ .Padding(PaddingMode::RSA_PSS)
+ .Authorization(TAG_NO_AUTH_REQUIRED)));
+ // Use large message, which won't work without digesting.
+ string message(1024, 'a');
+ string signature = SignMessage(
+ message, AuthorizationSetBuilder().Digest(Digest::SHA_2_256).Padding(PaddingMode::RSA_PSS));
+}
+
+/*
+ * SigningOperationsTest.RsaPaddingNoneDoesNotAllowOther
+ *
+ * Verifies that keymaster rejects signature operations that specify a padding mode when the key
+ * supports only unpadded operations.
+ */
+TEST_F(SigningOperationsTest, RsaPaddingNoneDoesNotAllowOther) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .RsaSigningKey(1024, 3)
+ .Digest(Digest::NONE)
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .Padding(PaddingMode::NONE)));
+ string message = "12345678901234567890123456789012";
+ string signature;
+
+ EXPECT_EQ(ErrorCode::INCOMPATIBLE_PADDING_MODE,
+ Begin(KeyPurpose::SIGN, AuthorizationSetBuilder()
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN)));
+}
+
+/*
+ * SigningOperationsTest.RsaPkcs1Sha256Success
+ *
+ * Verifies that digested RSA-PKCS1 signature operations succeed.
+ */
+TEST_F(SigningOperationsTest, RsaPkcs1Sha256Success) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .RsaSigningKey(1024, 3)
+ .Digest(Digest::SHA_2_256)
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN)));
+ string message(1024, 'a');
+ string signature = SignMessage(message, AuthorizationSetBuilder()
+ .Digest(Digest::SHA_2_256)
+ .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN));
+}
+
+/*
+ * SigningOperationsTest.RsaPkcs1NoDigestSuccess
+ *
+ * Verifies that undigested RSA-PKCS1 signature operations succeed.
+ */
+TEST_F(SigningOperationsTest, RsaPkcs1NoDigestSuccess) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .RsaSigningKey(1024, 3)
+ .Digest(Digest::NONE)
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN)));
+ string message(53, 'a');
+ string signature = SignMessage(
+ message,
+ AuthorizationSetBuilder().Digest(Digest::NONE).Padding(PaddingMode::RSA_PKCS1_1_5_SIGN));
+}
+
+/*
+ * SigningOperationsTest.RsaPkcs1NoDigestTooLarge
+ *
+ * Verifies that undigested RSA-PKCS1 signature operations fail with the correct error code when
+ * given a too-long message.
+ */
+TEST_F(SigningOperationsTest, RsaPkcs1NoDigestTooLong) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .RsaSigningKey(1024, 3)
+ .Digest(Digest::NONE)
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN)));
+ string message(129, 'a');
+
+ EXPECT_EQ(ErrorCode::OK,
+ Begin(KeyPurpose::SIGN, AuthorizationSetBuilder()
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN)));
+ string signature;
+ EXPECT_EQ(ErrorCode::INVALID_INPUT_LENGTH, Finish(message, &signature));
+}
+
+/*
+ * SigningOperationsTest.RsaPssSha512TooSmallKey
+ *
+ * Verifies that undigested RSA-PSS signature operations fail with the correct error code when
+ * used with a key that is too small for the message.
+ *
+ * A PSS-padded message is of length salt_size + digest_size + 16 (sizes in bits), and the keymaster
+ * specification requires that salt_size == digest_size, so the message will be digest_size * 2 +
+ * 16. Such a message can only be signed by a given key if the key is at least that size. This test
+ * uses SHA512, which has a digest_size == 512, so the message size is 1040 bits, too large for a
+ * 1024-bit key.
+ */
+TEST_F(SigningOperationsTest, RsaPssSha512TooSmallKey) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .RsaSigningKey(1024, 3)
+ .Digest(Digest::SHA_2_512)
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .Padding(PaddingMode::RSA_PSS)));
+ EXPECT_EQ(
+ ErrorCode::INCOMPATIBLE_DIGEST,
+ Begin(KeyPurpose::SIGN,
+ AuthorizationSetBuilder().Digest(Digest::SHA_2_512).Padding(PaddingMode::RSA_PSS)))
+ << "(Possibly b/33346750)";
+}
+
+/*
+ * SigningOperationsTest.RsaNoPaddingTooLong
+ *
+ * Verifies that raw RSA signature operations fail with the correct error code when
+ * given a too-long message.
+ */
+TEST_F(SigningOperationsTest, RsaNoPaddingTooLong) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .RsaSigningKey(1024, 3)
+ .Digest(Digest::NONE)
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN)));
+ // One byte too long
+ string message(1024 / 8 + 1, 'a');
+ ASSERT_EQ(ErrorCode::OK,
+ Begin(KeyPurpose::SIGN, AuthorizationSetBuilder()
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN)));
+ string result;
+ EXPECT_EQ(ErrorCode::INVALID_INPUT_LENGTH, Finish(message, &result));
+
+ // Very large message that should exceed the transfer buffer size of any reasonable TEE.
+ message = string(128 * 1024, 'a');
+ ASSERT_EQ(ErrorCode::OK,
+ Begin(KeyPurpose::SIGN, AuthorizationSetBuilder()
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN)));
+ EXPECT_EQ(ErrorCode::INVALID_INPUT_LENGTH, Finish(message, &result));
+}
+
+/*
+ * SigningOperationsTest.RsaAbort
+ *
+ * Verifies that operations can be aborted correctly. Uses an RSA signing operation for the test,
+ * but the behavior should be algorithm and purpose-independent.
+ */
+TEST_F(SigningOperationsTest, RsaAbort) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .RsaSigningKey(1024, 3)
+ .Digest(Digest::NONE)
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .Padding(PaddingMode::NONE)));
+
+ ASSERT_EQ(ErrorCode::OK,
+ Begin(KeyPurpose::SIGN,
+ AuthorizationSetBuilder().Digest(Digest::NONE).Padding(PaddingMode::NONE)));
+ EXPECT_EQ(ErrorCode::OK, Abort(op_handle_));
+
+ // Another abort should fail
+ EXPECT_EQ(ErrorCode::INVALID_OPERATION_HANDLE, Abort(op_handle_));
+
+ // Set to sentinel, so TearDown() doesn't try to abort again.
+ op_handle_ = kOpHandleSentinel;
+}
+
+/*
+ * SigningOperationsTest.RsaUnsupportedPadding
+ *
+ * Verifies that RSA operations fail with the correct error (but key gen succeeds) when used with a
+ * padding mode inappropriate for RSA.
+ */
+TEST_F(SigningOperationsTest, RsaUnsupportedPadding) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .RsaSigningKey(1024, 3)
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .Digest(Digest::SHA_2_256 /* supported digest */)
+ .Padding(PaddingMode::PKCS7)));
+ ASSERT_EQ(
+ ErrorCode::UNSUPPORTED_PADDING_MODE,
+ Begin(KeyPurpose::SIGN,
+ AuthorizationSetBuilder().Digest(Digest::SHA_2_256).Padding(PaddingMode::PKCS7)));
+}
+
+/*
+ * SigningOperationsTest.RsaPssNoDigest
+ *
+ * Verifies that RSA PSS operations fail when no digest is used. PSS requires a digest.
+ */
+TEST_F(SigningOperationsTest, RsaNoDigest) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .RsaSigningKey(1024, 3)
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::RSA_PSS)));
+ ASSERT_EQ(ErrorCode::INCOMPATIBLE_DIGEST,
+ Begin(KeyPurpose::SIGN,
+ AuthorizationSetBuilder().Digest(Digest::NONE).Padding(PaddingMode::RSA_PSS)));
+
+ ASSERT_EQ(ErrorCode::UNSUPPORTED_DIGEST,
+ Begin(KeyPurpose::SIGN, AuthorizationSetBuilder().Padding(PaddingMode::RSA_PSS)));
+}
+
+/*
+ * SigningOperationsTest.RsaPssNoDigest
+ *
+ * Verifies that RSA operations fail when no padding mode is specified. PaddingMode::NONE is
+ * supported in some cases (as validated in other tests), but a mode must be specified.
+ */
+TEST_F(SigningOperationsTest, RsaNoPadding) {
+ // Padding must be specified
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .RsaKey(1024, 3)
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .SigningKey()
+ .Digest(Digest::NONE)));
+ ASSERT_EQ(ErrorCode::UNSUPPORTED_PADDING_MODE,
+ Begin(KeyPurpose::SIGN, AuthorizationSetBuilder().Digest(Digest::NONE)));
+}
+
+/*
+ * SigningOperationsTest.RsaShortMessage
+ *
+ * Verifies that raw RSA signatures succeed with a message shorter than the key size.
+ */
+TEST_F(SigningOperationsTest, RsaTooShortMessage) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaSigningKey(1024, 3)
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::NONE)));
+
+ // Barely shorter
+ string message(1024 / 8 - 1, 'a');
+ SignMessage(message, AuthorizationSetBuilder().Digest(Digest::NONE).Padding(PaddingMode::NONE));
+
+ // Much shorter
+ message = "a";
+ SignMessage(message, AuthorizationSetBuilder().Digest(Digest::NONE).Padding(PaddingMode::NONE));
+}
+
+/*
+ * SigningOperationsTest.RsaSignWithEncryptionKey
+ *
+ * Verifies that RSA encryption keys cannot be used to sign.
+ */
+TEST_F(SigningOperationsTest, RsaSignWithEncryptionKey) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaEncryptionKey(1024, 3)
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::NONE)));
+ ASSERT_EQ(ErrorCode::INCOMPATIBLE_PURPOSE,
+ Begin(KeyPurpose::SIGN,
+ AuthorizationSetBuilder().Digest(Digest::NONE).Padding(PaddingMode::NONE)));
+}
+
+/*
+ * SigningOperationsTest.RsaSignTooLargeMessage
+ *
+ * Verifies that attempting a raw signature of a message which is the same length as the key, but
+ * numerically larger than the public modulus, fails with the correct error.
+ */
+TEST_F(SigningOperationsTest, RsaSignTooLargeMessage) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaSigningKey(1024, 3)
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::NONE)));
+
+ // Largest possible message will always be larger than the public modulus.
+ string message(1024 / 8, static_cast<char>(0xff));
+ ASSERT_EQ(ErrorCode::OK, Begin(KeyPurpose::SIGN, AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::NONE)));
+ string signature;
+ ASSERT_EQ(ErrorCode::INVALID_ARGUMENT, Finish(message, &signature));
+}
+
+/*
+ * SigningOperationsTest.EcdsaAllSizesAndHashes
+ *
+ * Verifies that ECDSA operations succeed with all possible key sizes and hashes.
+ */
+TEST_F(SigningOperationsTest, EcdsaAllSizesAndHashes) {
+ for (auto key_size : {224, 256, 384, 521}) {
+ for (auto digest : {
+ Digest::SHA1, Digest::SHA_2_224, Digest::SHA_2_256, Digest::SHA_2_384,
+ Digest::SHA_2_512,
+ }) {
+ ErrorCode error = GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .EcdsaSigningKey(key_size)
+ .Digest(digest));
+ EXPECT_EQ(ErrorCode::OK, error) << "Failed to generate ECDSA key with size " << key_size
+ << " and digest " << digest;
+ if (error != ErrorCode::OK) continue;
+
+ string message(1024, 'a');
+ if (digest == Digest::NONE) message.resize(key_size / 8);
+ SignMessage(message, AuthorizationSetBuilder().Digest(digest));
+ DeleteKey();
+ }
+ }
+}
+
+/*
+ * SigningOperationsTest.EcdsaAllCurves
+ *
+ * Verifies that ECDSA operations succeed with all possible curves.
+ */
+TEST_F(SigningOperationsTest, EcdsaAllCurves) {
+ for (auto curve : {EcCurve::P_224, EcCurve::P_256, EcCurve::P_384, EcCurve::P_521}) {
+ ErrorCode error = GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .EcdsaSigningKey(curve)
+ .Digest(Digest::SHA_2_256));
+ EXPECT_EQ(ErrorCode::OK, error) << "Failed to generate ECDSA key with curve " << curve;
+ if (error != ErrorCode::OK) continue;
+
+ string message(1024, 'a');
+ SignMessage(message, AuthorizationSetBuilder().Digest(Digest::SHA_2_256));
+ DeleteKey();
+ }
+}
+
+/*
+ * SigningOperationsTest.EcdsaNoDigestHugeData
+ *
+ * Verifies that ECDSA operations support very large messages, even without digesting. This should
+ * work because ECDSA actually only signs the leftmost L_n bits of the message, however large it may
+ * be. Not using digesting is a bad idea, but in some cases digesting is done by the framework.
+ */
+TEST_F(SigningOperationsTest, EcdsaNoDigestHugeData) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .EcdsaSigningKey(224)
+ .Digest(Digest::NONE)));
+ string message(64 * 1024, 'a');
+ SignMessage(message, AuthorizationSetBuilder().Digest(Digest::NONE));
+}
+
+/*
+ * SigningOperationsTest.AesEcbSign
+ *
+ * Verifies that attempts to use AES keys to sign fail in the correct way.
+ */
+TEST_F(SigningOperationsTest, AesEcbSign) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .SigningKey()
+ .AesEncryptionKey(128)
+ .Authorization(TAG_BLOCK_MODE, BlockMode::ECB)))
+ << "(Possibly b/36252957)";
+
+ AuthorizationSet out_params;
+ EXPECT_EQ(ErrorCode::UNSUPPORTED_PURPOSE,
+ Begin(KeyPurpose::SIGN, AuthorizationSet() /* in_params */, &out_params))
+ << "(Possibly b/36233187)";
+
+ EXPECT_EQ(ErrorCode::UNSUPPORTED_PURPOSE,
+ Begin(KeyPurpose::VERIFY, AuthorizationSet() /* in_params */, &out_params))
+ << "(Possibly b/36233187)";
+}
+
+/*
+ * SigningOperationsTest.HmacAllDigests
+ *
+ * Verifies that HMAC works with all digests.
+ */
+TEST_F(SigningOperationsTest, HmacAllDigests) {
+ for (auto digest : {Digest::SHA1, Digest::SHA_2_224, Digest::SHA_2_256, Digest::SHA_2_384,
+ Digest::SHA_2_512}) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .HmacKey(128)
+ .Digest(digest)
+ .Authorization(TAG_MIN_MAC_LENGTH, 160)))
+ << "Failed to create HMAC key with digest " << digest;
+ string message = "12345678901234567890123456789012";
+ string signature = MacMessage(message, digest, 160);
+ EXPECT_EQ(160U / 8U, signature.size())
+ << "Failed to sign with HMAC key with digest " << digest;
+ DeleteKey();
+ }
+}
+
+/*
+ * SigningOperationsTest.HmacSha256TooLargeMacLength
+ *
+ * Verifies that HMAC fails in the correct way when asked to generate a MAC larger than the digest
+ * size.
+ */
+TEST_F(SigningOperationsTest, HmacSha256TooLargeMacLength) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .HmacKey(128)
+ .Digest(Digest::SHA_2_256)
+ .Authorization(TAG_MIN_MAC_LENGTH, 256)));
+ AuthorizationSet output_params;
+ EXPECT_EQ(
+ ErrorCode::UNSUPPORTED_MAC_LENGTH,
+ Begin(
+ KeyPurpose::SIGN, key_blob_,
+ AuthorizationSetBuilder().Digest(Digest::SHA_2_256).Authorization(TAG_MAC_LENGTH, 264),
+ &output_params, &op_handle_));
+}
+
+/*
+ * SigningOperationsTest.HmacSha256TooSmallMacLength
+ *
+ * Verifies that HMAC fails in the correct way when asked to generate a MAC smaller than the
+ * specified minimum MAC length.
+ */
+TEST_F(SigningOperationsTest, HmacSha256TooSmallMacLength) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .HmacKey(128)
+ .Digest(Digest::SHA_2_256)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128)));
+ AuthorizationSet output_params;
+ EXPECT_EQ(
+ ErrorCode::INVALID_MAC_LENGTH,
+ Begin(
+ KeyPurpose::SIGN, key_blob_,
+ AuthorizationSetBuilder().Digest(Digest::SHA_2_256).Authorization(TAG_MAC_LENGTH, 120),
+ &output_params, &op_handle_));
+}
+
+/*
+ * SigningOperationsTest.HmacRfc4231TestCase3
+ *
+ * Validates against the test vectors from RFC 4231 test case 3.
+ */
+TEST_F(SigningOperationsTest, HmacRfc4231TestCase3) {
+ string key(20, 0xaa);
+ string message(50, 0xdd);
+ uint8_t sha_224_expected[] = {
+ 0x7f, 0xb3, 0xcb, 0x35, 0x88, 0xc6, 0xc1, 0xf6, 0xff, 0xa9, 0x69, 0x4d, 0x7d, 0x6a,
+ 0xd2, 0x64, 0x93, 0x65, 0xb0, 0xc1, 0xf6, 0x5d, 0x69, 0xd1, 0xec, 0x83, 0x33, 0xea,
+ };
+ uint8_t sha_256_expected[] = {
+ 0x77, 0x3e, 0xa9, 0x1e, 0x36, 0x80, 0x0e, 0x46, 0x85, 0x4d, 0xb8,
+ 0xeb, 0xd0, 0x91, 0x81, 0xa7, 0x29, 0x59, 0x09, 0x8b, 0x3e, 0xf8,
+ 0xc1, 0x22, 0xd9, 0x63, 0x55, 0x14, 0xce, 0xd5, 0x65, 0xfe,
+ };
+ uint8_t sha_384_expected[] = {
+ 0x88, 0x06, 0x26, 0x08, 0xd3, 0xe6, 0xad, 0x8a, 0x0a, 0xa2, 0xac, 0xe0,
+ 0x14, 0xc8, 0xa8, 0x6f, 0x0a, 0xa6, 0x35, 0xd9, 0x47, 0xac, 0x9f, 0xeb,
+ 0xe8, 0x3e, 0xf4, 0xe5, 0x59, 0x66, 0x14, 0x4b, 0x2a, 0x5a, 0xb3, 0x9d,
+ 0xc1, 0x38, 0x14, 0xb9, 0x4e, 0x3a, 0xb6, 0xe1, 0x01, 0xa3, 0x4f, 0x27,
+ };
+ uint8_t sha_512_expected[] = {
+ 0xfa, 0x73, 0xb0, 0x08, 0x9d, 0x56, 0xa2, 0x84, 0xef, 0xb0, 0xf0, 0x75, 0x6c,
+ 0x89, 0x0b, 0xe9, 0xb1, 0xb5, 0xdb, 0xdd, 0x8e, 0xe8, 0x1a, 0x36, 0x55, 0xf8,
+ 0x3e, 0x33, 0xb2, 0x27, 0x9d, 0x39, 0xbf, 0x3e, 0x84, 0x82, 0x79, 0xa7, 0x22,
+ 0xc8, 0x06, 0xb4, 0x85, 0xa4, 0x7e, 0x67, 0xc8, 0x07, 0xb9, 0x46, 0xa3, 0x37,
+ 0xbe, 0xe8, 0x94, 0x26, 0x74, 0x27, 0x88, 0x59, 0xe1, 0x32, 0x92, 0xfb,
+ };
+
+ CheckHmacTestVector(key, message, Digest::SHA_2_224, make_string(sha_224_expected));
+ CheckHmacTestVector(key, message, Digest::SHA_2_256, make_string(sha_256_expected));
+ CheckHmacTestVector(key, message, Digest::SHA_2_384, make_string(sha_384_expected));
+ CheckHmacTestVector(key, message, Digest::SHA_2_512, make_string(sha_512_expected));
+}
+
+/*
+ * SigningOperationsTest.HmacRfc4231TestCase5
+ *
+ * Validates against the test vectors from RFC 4231 test case 5.
+ */
+TEST_F(SigningOperationsTest, HmacRfc4231TestCase5) {
+ string key(20, 0x0c);
+ string message = "Test With Truncation";
+
+ uint8_t sha_224_expected[] = {
+ 0x0e, 0x2a, 0xea, 0x68, 0xa9, 0x0c, 0x8d, 0x37,
+ 0xc9, 0x88, 0xbc, 0xdb, 0x9f, 0xca, 0x6f, 0xa8,
+ };
+ uint8_t sha_256_expected[] = {
+ 0xa3, 0xb6, 0x16, 0x74, 0x73, 0x10, 0x0e, 0xe0,
+ 0x6e, 0x0c, 0x79, 0x6c, 0x29, 0x55, 0x55, 0x2b,
+ };
+ uint8_t sha_384_expected[] = {
+ 0x3a, 0xbf, 0x34, 0xc3, 0x50, 0x3b, 0x2a, 0x23,
+ 0xa4, 0x6e, 0xfc, 0x61, 0x9b, 0xae, 0xf8, 0x97,
+ };
+ uint8_t sha_512_expected[] = {
+ 0x41, 0x5f, 0xad, 0x62, 0x71, 0x58, 0x0a, 0x53,
+ 0x1d, 0x41, 0x79, 0xbc, 0x89, 0x1d, 0x87, 0xa6,
+ };
+
+ CheckHmacTestVector(key, message, Digest::SHA_2_224, make_string(sha_224_expected));
+ CheckHmacTestVector(key, message, Digest::SHA_2_256, make_string(sha_256_expected));
+ CheckHmacTestVector(key, message, Digest::SHA_2_384, make_string(sha_384_expected));
+ CheckHmacTestVector(key, message, Digest::SHA_2_512, make_string(sha_512_expected));
+}
+
+/*
+ * SigningOperationsTest.HmacRfc4231TestCase6
+ *
+ * Validates against the test vectors from RFC 4231 test case 6.
+ */
+TEST_F(SigningOperationsTest, HmacRfc4231TestCase6) {
+ string key(131, 0xaa);
+ string message = "Test Using Larger Than Block-Size Key - Hash Key First";
+
+ uint8_t sha_224_expected[] = {
+ 0x95, 0xe9, 0xa0, 0xdb, 0x96, 0x20, 0x95, 0xad, 0xae, 0xbe, 0x9b, 0x2d, 0x6f, 0x0d,
+ 0xbc, 0xe2, 0xd4, 0x99, 0xf1, 0x12, 0xf2, 0xd2, 0xb7, 0x27, 0x3f, 0xa6, 0x87, 0x0e,
+ };
+ uint8_t sha_256_expected[] = {
+ 0x60, 0xe4, 0x31, 0x59, 0x1e, 0xe0, 0xb6, 0x7f, 0x0d, 0x8a, 0x26,
+ 0xaa, 0xcb, 0xf5, 0xb7, 0x7f, 0x8e, 0x0b, 0xc6, 0x21, 0x37, 0x28,
+ 0xc5, 0x14, 0x05, 0x46, 0x04, 0x0f, 0x0e, 0xe3, 0x7f, 0x54,
+ };
+ uint8_t sha_384_expected[] = {
+ 0x4e, 0xce, 0x08, 0x44, 0x85, 0x81, 0x3e, 0x90, 0x88, 0xd2, 0xc6, 0x3a,
+ 0x04, 0x1b, 0xc5, 0xb4, 0x4f, 0x9e, 0xf1, 0x01, 0x2a, 0x2b, 0x58, 0x8f,
+ 0x3c, 0xd1, 0x1f, 0x05, 0x03, 0x3a, 0xc4, 0xc6, 0x0c, 0x2e, 0xf6, 0xab,
+ 0x40, 0x30, 0xfe, 0x82, 0x96, 0x24, 0x8d, 0xf1, 0x63, 0xf4, 0x49, 0x52,
+ };
+ uint8_t sha_512_expected[] = {
+ 0x80, 0xb2, 0x42, 0x63, 0xc7, 0xc1, 0xa3, 0xeb, 0xb7, 0x14, 0x93, 0xc1, 0xdd,
+ 0x7b, 0xe8, 0xb4, 0x9b, 0x46, 0xd1, 0xf4, 0x1b, 0x4a, 0xee, 0xc1, 0x12, 0x1b,
+ 0x01, 0x37, 0x83, 0xf8, 0xf3, 0x52, 0x6b, 0x56, 0xd0, 0x37, 0xe0, 0x5f, 0x25,
+ 0x98, 0xbd, 0x0f, 0xd2, 0x21, 0x5d, 0x6a, 0x1e, 0x52, 0x95, 0xe6, 0x4f, 0x73,
+ 0xf6, 0x3f, 0x0a, 0xec, 0x8b, 0x91, 0x5a, 0x98, 0x5d, 0x78, 0x65, 0x98,
+ };
+
+ CheckHmacTestVector(key, message, Digest::SHA_2_224, make_string(sha_224_expected));
+ CheckHmacTestVector(key, message, Digest::SHA_2_256, make_string(sha_256_expected));
+ CheckHmacTestVector(key, message, Digest::SHA_2_384, make_string(sha_384_expected));
+ CheckHmacTestVector(key, message, Digest::SHA_2_512, make_string(sha_512_expected));
+}
+
+/*
+ * SigningOperationsTest.HmacRfc4231TestCase7
+ *
+ * Validates against the test vectors from RFC 4231 test case 7.
+ */
+TEST_F(SigningOperationsTest, HmacRfc4231TestCase7) {
+ string key(131, 0xaa);
+ string message = "This is a test using a larger than block-size key and a larger than "
+ "block-size data. The key needs to be hashed before being used by the HMAC "
+ "algorithm.";
+
+ uint8_t sha_224_expected[] = {
+ 0x3a, 0x85, 0x41, 0x66, 0xac, 0x5d, 0x9f, 0x02, 0x3f, 0x54, 0xd5, 0x17, 0xd0, 0xb3,
+ 0x9d, 0xbd, 0x94, 0x67, 0x70, 0xdb, 0x9c, 0x2b, 0x95, 0xc9, 0xf6, 0xf5, 0x65, 0xd1,
+ };
+ uint8_t sha_256_expected[] = {
+ 0x9b, 0x09, 0xff, 0xa7, 0x1b, 0x94, 0x2f, 0xcb, 0x27, 0x63, 0x5f,
+ 0xbc, 0xd5, 0xb0, 0xe9, 0x44, 0xbf, 0xdc, 0x63, 0x64, 0x4f, 0x07,
+ 0x13, 0x93, 0x8a, 0x7f, 0x51, 0x53, 0x5c, 0x3a, 0x35, 0xe2,
+ };
+ uint8_t sha_384_expected[] = {
+ 0x66, 0x17, 0x17, 0x8e, 0x94, 0x1f, 0x02, 0x0d, 0x35, 0x1e, 0x2f, 0x25,
+ 0x4e, 0x8f, 0xd3, 0x2c, 0x60, 0x24, 0x20, 0xfe, 0xb0, 0xb8, 0xfb, 0x9a,
+ 0xdc, 0xce, 0xbb, 0x82, 0x46, 0x1e, 0x99, 0xc5, 0xa6, 0x78, 0xcc, 0x31,
+ 0xe7, 0x99, 0x17, 0x6d, 0x38, 0x60, 0xe6, 0x11, 0x0c, 0x46, 0x52, 0x3e,
+ };
+ uint8_t sha_512_expected[] = {
+ 0xe3, 0x7b, 0x6a, 0x77, 0x5d, 0xc8, 0x7d, 0xba, 0xa4, 0xdf, 0xa9, 0xf9, 0x6e,
+ 0x5e, 0x3f, 0xfd, 0xde, 0xbd, 0x71, 0xf8, 0x86, 0x72, 0x89, 0x86, 0x5d, 0xf5,
+ 0xa3, 0x2d, 0x20, 0xcd, 0xc9, 0x44, 0xb6, 0x02, 0x2c, 0xac, 0x3c, 0x49, 0x82,
+ 0xb1, 0x0d, 0x5e, 0xeb, 0x55, 0xc3, 0xe4, 0xde, 0x15, 0x13, 0x46, 0x76, 0xfb,
+ 0x6d, 0xe0, 0x44, 0x60, 0x65, 0xc9, 0x74, 0x40, 0xfa, 0x8c, 0x6a, 0x58,
+ };
+
+ CheckHmacTestVector(key, message, Digest::SHA_2_224, make_string(sha_224_expected));
+ CheckHmacTestVector(key, message, Digest::SHA_2_256, make_string(sha_256_expected));
+ CheckHmacTestVector(key, message, Digest::SHA_2_384, make_string(sha_384_expected));
+ CheckHmacTestVector(key, message, Digest::SHA_2_512, make_string(sha_512_expected));
+}
+
+typedef KeymasterHidlTest VerificationOperationsTest;
+
+/*
+ * VerificationOperationsTest.RsaSuccess
+ *
+ * Verifies that a simple RSA signature/verification sequence succeeds.
+ */
+TEST_F(VerificationOperationsTest, RsaSuccess) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaSigningKey(1024, 3)
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::NONE)));
+ string message = "12345678901234567890123456789012";
+ string signature = SignMessage(
+ message, AuthorizationSetBuilder().Digest(Digest::NONE).Padding(PaddingMode::NONE));
+ VerifyMessage(message, signature,
+ AuthorizationSetBuilder().Digest(Digest::NONE).Padding(PaddingMode::NONE));
+}
+
+/*
+ * VerificationOperationsTest.RsaSuccess
+ *
+ * Verifies RSA signature/verification for all padding modes and digests.
+ */
+TEST_F(VerificationOperationsTest, RsaAllPaddingsAndDigests) {
+ Digest digest = Digest::SHA_2_256;
+ ASSERT_EQ(ErrorCode::OK,
+ GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaSigningKey(2048, 3)
+ .Digest(Digest::NONE, Digest::MD5, Digest::SHA1, Digest::SHA_2_224,
+ Digest::SHA_2_256, Digest::SHA_2_384, Digest::SHA_2_512)
+ .Padding(PaddingMode::NONE)
+ .Padding(PaddingMode::RSA_PSS)
+ .Padding(PaddingMode::RSA_PKCS1_1_5_SIGN)));
+
+ string message(128, 'a');
+ string corrupt_message(message);
+ ++corrupt_message[corrupt_message.size() / 2];
+
+ for (auto padding :
+ {PaddingMode::NONE, PaddingMode::RSA_PSS, PaddingMode::RSA_PKCS1_1_5_SIGN}) {
+
+ for (auto digest : {Digest::NONE, Digest::MD5, Digest::SHA1, Digest::SHA_2_224,
+ Digest::SHA_2_256, Digest::SHA_2_384, Digest::SHA_2_512}) {
+ if (padding == PaddingMode::NONE && digest != Digest::NONE) {
+ // Digesting only makes sense with padding.
+ continue;
+ }
+
+ if (padding == PaddingMode::RSA_PSS && digest == Digest::NONE) {
+ // PSS requires digesting.
+ continue;
+ }
+
+ string signature =
+ SignMessage(message, AuthorizationSetBuilder().Digest(digest).Padding(padding));
+ VerifyMessage(message, signature,
+ AuthorizationSetBuilder().Digest(digest).Padding(padding));
+
+ if (digest != Digest::NONE) {
+ // Verify with OpenSSL.
+ HidlBuf pubkey;
+ ASSERT_EQ(ErrorCode::OK, ExportKey(KeyFormat::X509, &pubkey));
+
+ const uint8_t* p = pubkey.data();
+ EVP_PKEY_Ptr pkey(d2i_PUBKEY(nullptr /* alloc new */, &p, pubkey.size()));
+ ASSERT_TRUE(pkey.get());
+
+ EVP_MD_CTX digest_ctx;
+ EVP_MD_CTX_init(&digest_ctx);
+ EVP_PKEY_CTX* pkey_ctx;
+ const EVP_MD* md = openssl_digest(digest);
+ ASSERT_NE(md, nullptr);
+ EXPECT_EQ(1, EVP_DigestVerifyInit(&digest_ctx, &pkey_ctx, md, nullptr /* engine */,
+ pkey.get()));
+
+ switch (padding) {
+ case PaddingMode::RSA_PSS:
+ EXPECT_GT(EVP_PKEY_CTX_set_rsa_padding(pkey_ctx, RSA_PKCS1_PSS_PADDING), 0);
+ EXPECT_GT(EVP_PKEY_CTX_set_rsa_pss_saltlen(pkey_ctx, EVP_MD_size(md)), 0);
+ break;
+ case PaddingMode::RSA_PKCS1_1_5_SIGN:
+ // PKCS1 is the default; don't need to set anything.
+ break;
+ default:
+ FAIL();
+ break;
+ }
+
+ EXPECT_EQ(1, EVP_DigestVerifyUpdate(&digest_ctx, message.data(), message.size()));
+ EXPECT_EQ(1, EVP_DigestVerifyFinal(
+ &digest_ctx, reinterpret_cast<const uint8_t*>(signature.data()),
+ signature.size()));
+ EVP_MD_CTX_cleanup(&digest_ctx);
+ }
+
+ // Corrupt signature shouldn't verify.
+ string corrupt_signature(signature);
+ ++corrupt_signature[corrupt_signature.size() / 2];
+
+ EXPECT_EQ(ErrorCode::OK,
+ Begin(KeyPurpose::VERIFY,
+ AuthorizationSetBuilder().Digest(digest).Padding(padding)));
+ string result;
+ EXPECT_EQ(ErrorCode::VERIFICATION_FAILED, Finish(message, corrupt_signature, &result));
+
+ // Corrupt message shouldn't verify
+ EXPECT_EQ(ErrorCode::OK,
+ Begin(KeyPurpose::VERIFY,
+ AuthorizationSetBuilder().Digest(digest).Padding(padding)));
+ EXPECT_EQ(ErrorCode::VERIFICATION_FAILED, Finish(corrupt_message, signature, &result));
+ }
+ }
+}
+
+/*
+ * VerificationOperationsTest.RsaSuccess
+ *
+ * Verifies ECDSA signature/verification for all digests and curves.
+ */
+TEST_F(VerificationOperationsTest, EcdsaAllDigestsAndCurves) {
+ auto digests = {
+ Digest::NONE, Digest::SHA1, Digest::SHA_2_224,
+ Digest::SHA_2_256, Digest::SHA_2_384, Digest::SHA_2_512,
+ };
+
+ string message = "1234567890";
+ string corrupt_message = "2234567890";
+ for (auto curve : {EcCurve::P_224, EcCurve::P_256, EcCurve::P_384, EcCurve::P_521}) {
+ ErrorCode error = GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .EcdsaSigningKey(curve)
+ .Digest(digests));
+ EXPECT_EQ(ErrorCode::OK, error) << "Failed to generate key for EC curve " << curve;
+ if (error != ErrorCode::OK) {
+ continue;
+ }
+
+ for (auto digest : digests) {
+ string signature = SignMessage(message, AuthorizationSetBuilder().Digest(digest));
+ VerifyMessage(message, signature, AuthorizationSetBuilder().Digest(digest));
+
+ // Verify with OpenSSL
+ if (digest != Digest::NONE) {
+ HidlBuf pubkey;
+ ASSERT_EQ(ErrorCode::OK, ExportKey(KeyFormat::X509, &pubkey))
+ << curve << ' ' << digest;
+
+ const uint8_t* p = pubkey.data();
+ EVP_PKEY_Ptr pkey(d2i_PUBKEY(nullptr /* alloc new */, &p, pubkey.size()));
+ ASSERT_TRUE(pkey.get());
+
+ EVP_MD_CTX digest_ctx;
+ EVP_MD_CTX_init(&digest_ctx);
+ EVP_PKEY_CTX* pkey_ctx;
+ const EVP_MD* md = openssl_digest(digest);
+
+ EXPECT_EQ(1, EVP_DigestVerifyInit(&digest_ctx, &pkey_ctx, md, nullptr /* engine */,
+ pkey.get()))
+ << curve << ' ' << digest;
+
+ EXPECT_EQ(1, EVP_DigestVerifyUpdate(&digest_ctx, message.data(), message.size()))
+ << curve << ' ' << digest;
+
+ EXPECT_EQ(1, EVP_DigestVerifyFinal(
+ &digest_ctx, reinterpret_cast<const uint8_t*>(signature.data()),
+ signature.size()))
+ << curve << ' ' << digest;
+
+ EVP_MD_CTX_cleanup(&digest_ctx);
+ }
+
+ // Corrupt signature shouldn't verify.
+ string corrupt_signature(signature);
+ ++corrupt_signature[corrupt_signature.size() / 2];
+
+ EXPECT_EQ(ErrorCode::OK,
+ Begin(KeyPurpose::VERIFY, AuthorizationSetBuilder().Digest(digest)))
+ << curve << ' ' << digest;
+
+ string result;
+ EXPECT_EQ(ErrorCode::VERIFICATION_FAILED, Finish(message, corrupt_signature, &result))
+ << curve << ' ' << digest;
+
+ // Corrupt message shouldn't verify
+ EXPECT_EQ(ErrorCode::OK,
+ Begin(KeyPurpose::VERIFY, AuthorizationSetBuilder().Digest(digest)))
+ << curve << ' ' << digest;
+
+ EXPECT_EQ(ErrorCode::VERIFICATION_FAILED, Finish(corrupt_message, signature, &result))
+ << curve << ' ' << digest;
+ }
+
+ ASSERT_EQ(ErrorCode::OK, DeleteKey());
+ }
+}
+
+/*
+ * VerificationOperationsTest.HmacSigningKeyCannotVerify
+ *
+ * Verifies HMAC signing and verification, but that a signing key cannot be used to verify.
+ */
+TEST_F(VerificationOperationsTest, HmacSigningKeyCannotVerify) {
+ string key_material = "HelloThisIsAKey";
+
+ HidlBuf signing_key, verification_key;
+ KeyCharacteristics signing_key_chars, verification_key_chars;
+ EXPECT_EQ(ErrorCode::OK,
+ ImportKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .Authorization(TAG_ALGORITHM, Algorithm::HMAC)
+ .Authorization(TAG_PURPOSE, KeyPurpose::SIGN)
+ .Digest(Digest::SHA1)
+ .Authorization(TAG_MIN_MAC_LENGTH, 160),
+ KeyFormat::RAW, key_material, &signing_key, &signing_key_chars));
+ EXPECT_EQ(ErrorCode::OK,
+ ImportKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .Authorization(TAG_ALGORITHM, Algorithm::HMAC)
+ .Authorization(TAG_PURPOSE, KeyPurpose::VERIFY)
+ .Digest(Digest::SHA1)
+ .Authorization(TAG_MIN_MAC_LENGTH, 160),
+ KeyFormat::RAW, key_material, &verification_key, &verification_key_chars));
+
+ string message = "This is a message.";
+ string signature = SignMessage(
+ signing_key, message,
+ AuthorizationSetBuilder().Digest(Digest::SHA1).Authorization(TAG_MAC_LENGTH, 160));
+
+ // Signing key should not work.
+ AuthorizationSet out_params;
+ EXPECT_EQ(ErrorCode::INCOMPATIBLE_PURPOSE,
+ Begin(KeyPurpose::VERIFY, signing_key, AuthorizationSetBuilder().Digest(Digest::SHA1),
+ &out_params, &op_handle_));
+
+ // Verification key should work.
+ VerifyMessage(verification_key, message, signature,
+ AuthorizationSetBuilder().Digest(Digest::SHA1));
+
+ EXPECT_EQ(ErrorCode::OK, DeleteKey(&signing_key));
+ EXPECT_EQ(ErrorCode::OK, DeleteKey(&verification_key));
+}
+
+typedef KeymasterHidlTest ExportKeyTest;
+
+/*
+ * ExportKeyTest.RsaUnsupportedKeyFormat
+ *
+ * Verifies that attempting to export RSA keys in PKCS#8 format fails with the correct error.
+ */
+TEST_F(ExportKeyTest, RsaUnsupportedKeyFormat) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .RsaSigningKey(256, 3)
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::NONE)));
+ HidlBuf export_data;
+ ASSERT_EQ(ErrorCode::UNSUPPORTED_KEY_FORMAT, ExportKey(KeyFormat::PKCS8, &export_data));
+}
+
+/*
+ * ExportKeyTest.RsaCorruptedKeyBlob
+ *
+ * Verifies that attempting to export RSA keys from corrupted key blobs fails. This is essentially
+ * a poor-man's key blob fuzzer.
+ */
+// Disabled due to b/33385206
+TEST_F(ExportKeyTest, DISABLED_RsaCorruptedKeyBlob) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaSigningKey(256, 3)
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::NONE)));
+ for (size_t i = 0; i < key_blob_.size(); ++i) {
+ HidlBuf corrupted(key_blob_);
+ ++corrupted[i];
+
+ HidlBuf export_data;
+ EXPECT_EQ(ErrorCode::INVALID_KEY_BLOB,
+ ExportKey(KeyFormat::X509, corrupted, HidlBuf(), HidlBuf(), &export_data))
+ << "Blob corrupted at offset " << i << " erroneously accepted as valid";
+ }
+}
+
+/*
+ * ExportKeyTest.RsaCorruptedKeyBlob
+ *
+ * Verifies that attempting to export ECDSA keys from corrupted key blobs fails. This is
+ * essentially a poor-man's key blob fuzzer.
+ */
+// Disabled due to b/33385206
+TEST_F(ExportKeyTest, DISABLED_EcCorruptedKeyBlob) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .EcdsaSigningKey(EcCurve::P_256)
+ .Digest(Digest::NONE)));
+ for (size_t i = 0; i < key_blob_.size(); ++i) {
+ HidlBuf corrupted(key_blob_);
+ ++corrupted[i];
+
+ HidlBuf export_data;
+ EXPECT_EQ(ErrorCode::INVALID_KEY_BLOB,
+ ExportKey(KeyFormat::X509, corrupted, HidlBuf(), HidlBuf(), &export_data))
+ << "Blob corrupted at offset " << i << " erroneously accepted as valid";
+ }
+}
+
+/*
+ * ExportKeyTest.AesKeyUnexportable
+ *
+ * Verifies that attempting to export AES keys fails in the expected way.
+ */
+TEST_F(ExportKeyTest, AesKeyUnexportable) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .EcbMode()
+ .Padding(PaddingMode::NONE)));
+
+ HidlBuf export_data;
+ EXPECT_EQ(ErrorCode::UNSUPPORTED_KEY_FORMAT, ExportKey(KeyFormat::X509, &export_data));
+ EXPECT_EQ(ErrorCode::UNSUPPORTED_KEY_FORMAT, ExportKey(KeyFormat::PKCS8, &export_data));
+ EXPECT_EQ(ErrorCode::UNSUPPORTED_KEY_FORMAT, ExportKey(KeyFormat::RAW, &export_data));
+}
+typedef KeymasterHidlTest ImportKeyTest;
+
+/*
+ * ImportKeyTest.RsaSuccess
+ *
+ * Verifies that importing and using an RSA key pair works correctly.
+ */
+TEST_F(ImportKeyTest, RsaSuccess) {
+ ASSERT_EQ(ErrorCode::OK, ImportKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaSigningKey(1024, 65537)
+ .Digest(Digest::SHA_2_256)
+ .Padding(PaddingMode::RSA_PSS),
+ KeyFormat::PKCS8, rsa_key));
+
+ CheckKm0CryptoParam(TAG_ALGORITHM, Algorithm::RSA);
+ CheckKm0CryptoParam(TAG_KEY_SIZE, 1024U);
+ CheckKm0CryptoParam(TAG_RSA_PUBLIC_EXPONENT, 65537U);
+ CheckKm1CryptoParam(TAG_DIGEST, Digest::SHA_2_256);
+ CheckKm1CryptoParam(TAG_PADDING, PaddingMode::RSA_PSS);
+ CheckOrigin();
+
+ string message(1024 / 8, 'a');
+ auto params = AuthorizationSetBuilder().Digest(Digest::SHA_2_256).Padding(PaddingMode::RSA_PSS);
+ string signature = SignMessage(message, params);
+ VerifyMessage(message, signature, params);
+}
+
+/*
+ * ImportKeyTest.RsaKeySizeMismatch
+ *
+ * Verifies that importing an RSA key pair with a size that doesn't match the key fails in the
+ * correct way.
+ */
+TEST_F(ImportKeyTest, RsaKeySizeMismatch) {
+ ASSERT_EQ(ErrorCode::IMPORT_PARAMETER_MISMATCH,
+ ImportKey(AuthorizationSetBuilder()
+ .RsaSigningKey(2048 /* Doesn't match key */, 65537)
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::NONE),
+ KeyFormat::PKCS8, rsa_key));
+}
+
+/*
+ * ImportKeyTest.RsaPublicExponentMismatch
+ *
+ * Verifies that importing an RSA key pair with a public exponent that doesn't match the key fails
+ * in the correct way.
+ */
+TEST_F(ImportKeyTest, RsaPublicExponentMismatch) {
+ ASSERT_EQ(ErrorCode::IMPORT_PARAMETER_MISMATCH,
+ ImportKey(AuthorizationSetBuilder()
+ .RsaSigningKey(1024, 3 /* Doesn't match key */)
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::NONE),
+ KeyFormat::PKCS8, rsa_key));
+}
+
+/*
+ * ImportKeyTest.EcdsaSuccess
+ *
+ * Verifies that importing and using an ECDSA key pair works correctly.
+ */
+TEST_F(ImportKeyTest, EcdsaSuccess) {
+ ASSERT_EQ(ErrorCode::OK, ImportKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .EcdsaSigningKey(256)
+ .Digest(Digest::SHA_2_256),
+ KeyFormat::PKCS8, ec_key))
+ << "(Possibly b/33945114)";
+
+ CheckKm0CryptoParam(TAG_ALGORITHM, Algorithm::EC);
+ CheckKm0CryptoParam(TAG_KEY_SIZE, 256U);
+ CheckKm1CryptoParam(TAG_DIGEST, Digest::SHA_2_256);
+ CheckKm2CryptoParam(TAG_EC_CURVE, EcCurve::P_256);
+
+ CheckOrigin();
+
+ string message(32, 'a');
+ auto params = AuthorizationSetBuilder().Digest(Digest::SHA_2_256);
+ string signature = SignMessage(message, params);
+ VerifyMessage(message, signature, params);
+}
+
+/*
+ * ImportKeyTest.EcdsaSizeMismatch
+ *
+ * Verifies that importing an ECDSA key pair with a size that doesn't match the key fails in the
+ * correct way.
+ */
+TEST_F(ImportKeyTest, EcdsaSizeMismatch) {
+ ASSERT_EQ(ErrorCode::IMPORT_PARAMETER_MISMATCH,
+ ImportKey(AuthorizationSetBuilder()
+ .EcdsaSigningKey(224 /* Doesn't match key */)
+ .Digest(Digest::NONE),
+ KeyFormat::PKCS8, ec_key));
+}
+
+/*
+ * ImportKeyTest.EcdsaCurveMismatch
+ *
+ * Verifies that importing an ECDSA key pair with a curve that doesn't match the key fails in the
+ * correct way.
+ */
+TEST_F(ImportKeyTest, EcdsaCurveMismatch) {
+ if (SupportsSymmetric() && !SupportsAttestation()) {
+ // KM1 hardware doesn't know about curves
+ return;
+ }
+
+ ASSERT_EQ(ErrorCode::IMPORT_PARAMETER_MISMATCH,
+ ImportKey(AuthorizationSetBuilder()
+ .EcdsaSigningKey(EcCurve::P_224 /* Doesn't match key */)
+ .Digest(Digest::NONE),
+ KeyFormat::PKCS8, ec_key))
+ << "(Possibly b/36233241)";
+}
+
+/*
+ * ImportKeyTest.AesSuccess
+ *
+ * Verifies that importing and using an AES key works.
+ */
+TEST_F(ImportKeyTest, AesSuccess) {
+ string key = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+ ASSERT_EQ(ErrorCode::OK, ImportKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(key.size() * 8)
+ .EcbMode()
+ .Padding(PaddingMode::PKCS7),
+ KeyFormat::RAW, key));
+
+ CheckKm1CryptoParam(TAG_ALGORITHM, Algorithm::AES);
+ CheckKm1CryptoParam(TAG_KEY_SIZE, 128U);
+ CheckKm1CryptoParam(TAG_PADDING, PaddingMode::PKCS7);
+ CheckKm1CryptoParam(TAG_BLOCK_MODE, BlockMode::ECB);
+ CheckOrigin();
+
+ string message = "Hello World!";
+ auto params = AuthorizationSetBuilder().BlockMode(BlockMode::ECB).Padding(PaddingMode::PKCS7);
+ string ciphertext = EncryptMessage(message, params);
+ string plaintext = DecryptMessage(ciphertext, params);
+ EXPECT_EQ(message, plaintext);
+}
+
+/*
+ * ImportKeyTest.AesSuccess
+ *
+ * Verifies that importing and using an HMAC key works.
+ */
+TEST_F(ImportKeyTest, HmacKeySuccess) {
+ string key = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+ ASSERT_EQ(ErrorCode::OK, ImportKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .HmacKey(key.size() * 8)
+ .Digest(Digest::SHA_2_256)
+ .Authorization(TAG_MIN_MAC_LENGTH, 256),
+ KeyFormat::RAW, key));
+
+ CheckKm1CryptoParam(TAG_ALGORITHM, Algorithm::HMAC);
+ CheckKm1CryptoParam(TAG_KEY_SIZE, 128U);
+ CheckKm1CryptoParam(TAG_DIGEST, Digest::SHA_2_256);
+ CheckOrigin();
+
+ string message = "Hello World!";
+ string signature = MacMessage(message, Digest::SHA_2_256, 256);
+ VerifyMessage(message, signature, AuthorizationSetBuilder().Digest(Digest::SHA_2_256));
+}
+
+typedef KeymasterHidlTest EncryptionOperationsTest;
+
+/*
+ * EncryptionOperationsTest.RsaNoPaddingSuccess
+ *
+ * Verifies that raw RSA encryption works.
+ */
+TEST_F(EncryptionOperationsTest, RsaNoPaddingSuccess) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaEncryptionKey(1024, 3)
+ .Padding(PaddingMode::NONE)));
+
+ string message = string(1024 / 8, 'a');
+ auto params = AuthorizationSetBuilder().Padding(PaddingMode::NONE);
+ string ciphertext1 = EncryptMessage(message, params);
+ EXPECT_EQ(1024U / 8, ciphertext1.size());
+
+ string ciphertext2 = EncryptMessage(message, params);
+ EXPECT_EQ(1024U / 8, ciphertext2.size());
+
+ // Unpadded RSA is deterministic
+ EXPECT_EQ(ciphertext1, ciphertext2);
+}
+
+/*
+ * EncryptionOperationsTest.RsaNoPaddingShortMessage
+ *
+ * Verifies that raw RSA encryption of short messages works.
+ */
+TEST_F(EncryptionOperationsTest, RsaNoPaddingShortMessage) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaEncryptionKey(1024, 3)
+ .Padding(PaddingMode::NONE)));
+
+ string message = "1";
+ auto params = AuthorizationSetBuilder().Padding(PaddingMode::NONE);
+
+ string ciphertext = EncryptMessage(message, params);
+ EXPECT_EQ(1024U / 8, ciphertext.size());
+
+ string expected_plaintext = string(1024 / 8 - 1, 0) + message;
+ string plaintext = DecryptMessage(ciphertext, params);
+
+ EXPECT_EQ(expected_plaintext, plaintext);
+
+ // Degenerate case, encrypting a numeric 1 yields 0x00..01 as the ciphertext.
+ message = static_cast<char>(1);
+ ciphertext = EncryptMessage(message, params);
+ EXPECT_EQ(1024U / 8, ciphertext.size());
+ EXPECT_EQ(ciphertext, string(1024 / 8 - 1, 0) + message);
+}
+
+/*
+ * EncryptionOperationsTest.RsaNoPaddingTooLong
+ *
+ * Verifies that raw RSA encryption of too-long messages fails in the expected way.
+ */
+TEST_F(EncryptionOperationsTest, RsaNoPaddingTooLong) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaEncryptionKey(1024, 3)
+ .Padding(PaddingMode::NONE)));
+
+ string message(1024 / 8 + 1, 'a');
+
+ auto params = AuthorizationSetBuilder().Padding(PaddingMode::NONE);
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::ENCRYPT, params));
+
+ string result;
+ EXPECT_EQ(ErrorCode::INVALID_INPUT_LENGTH, Finish(message, &result));
+}
+
+/*
+ * EncryptionOperationsTest.RsaNoPaddingTooLong
+ *
+ * Verifies that raw RSA encryption of too-large (numerically) messages fails in the expected way.
+ */
+TEST_F(EncryptionOperationsTest, RsaNoPaddingTooLarge) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaEncryptionKey(1024, 3)
+ .Padding(PaddingMode::NONE)));
+
+ HidlBuf exported;
+ ASSERT_EQ(ErrorCode::OK, ExportKey(KeyFormat::X509, &exported));
+
+ const uint8_t* p = exported.data();
+ EVP_PKEY_Ptr pkey(d2i_PUBKEY(nullptr /* alloc new */, &p, exported.size()));
+ RSA_Ptr rsa(EVP_PKEY_get1_RSA(pkey.get()));
+
+ size_t modulus_len = BN_num_bytes(rsa->n);
+ ASSERT_EQ(1024U / 8, modulus_len);
+ std::unique_ptr<uint8_t[]> modulus_buf(new uint8_t[modulus_len]);
+ BN_bn2bin(rsa->n, modulus_buf.get());
+
+ // The modulus is too big to encrypt.
+ string message(reinterpret_cast<const char*>(modulus_buf.get()), modulus_len);
+
+ auto params = AuthorizationSetBuilder().Padding(PaddingMode::NONE);
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::ENCRYPT, params));
+
+ string result;
+ EXPECT_EQ(ErrorCode::INVALID_ARGUMENT, Finish(message, &result));
+
+ // One smaller than the modulus is okay.
+ BN_sub(rsa->n, rsa->n, BN_value_one());
+ modulus_len = BN_num_bytes(rsa->n);
+ ASSERT_EQ(1024U / 8, modulus_len);
+ BN_bn2bin(rsa->n, modulus_buf.get());
+ message = string(reinterpret_cast<const char*>(modulus_buf.get()), modulus_len);
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::ENCRYPT, params));
+ EXPECT_EQ(ErrorCode::OK, Finish(message, &result));
+}
+
+/*
+ * EncryptionOperationsTest.RsaOaepSuccess
+ *
+ * Verifies that RSA-OAEP encryption operations work, with all digests.
+ */
+TEST_F(EncryptionOperationsTest, RsaOaepSuccess) {
+ auto digests = {Digest::MD5, Digest::SHA1, Digest::SHA_2_224,
+ Digest::SHA_2_256, Digest::SHA_2_384, Digest::SHA_2_512};
+
+ size_t key_size = 2048; // Need largish key for SHA-512 test.
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaEncryptionKey(key_size, 3)
+ .Padding(PaddingMode::RSA_OAEP)
+ .Digest(digests)));
+
+ string message = "Hello";
+
+ for (auto digest : digests) {
+ auto params = AuthorizationSetBuilder().Digest(digest).Padding(PaddingMode::RSA_OAEP);
+ string ciphertext1 = EncryptMessage(message, params);
+ if (HasNonfatalFailure()) std::cout << "-->" << digest << std::endl;
+ EXPECT_EQ(key_size / 8, ciphertext1.size());
+
+ string ciphertext2 = EncryptMessage(message, params);
+ EXPECT_EQ(key_size / 8, ciphertext2.size());
+
+ // OAEP randomizes padding so every result should be different (with astronomically high
+ // probability).
+ EXPECT_NE(ciphertext1, ciphertext2);
+
+ string plaintext1 = DecryptMessage(ciphertext1, params);
+ EXPECT_EQ(message, plaintext1) << "RSA-OAEP failed with digest " << digest;
+ string plaintext2 = DecryptMessage(ciphertext2, params);
+ EXPECT_EQ(message, plaintext2) << "RSA-OAEP failed with digest " << digest;
+
+ // Decrypting corrupted ciphertext should fail.
+ size_t offset_to_corrupt = random() % ciphertext1.size();
+ char corrupt_byte;
+ do {
+ corrupt_byte = static_cast<char>(random() % 256);
+ } while (corrupt_byte == ciphertext1[offset_to_corrupt]);
+ ciphertext1[offset_to_corrupt] = corrupt_byte;
+
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::DECRYPT, params));
+ string result;
+ EXPECT_EQ(ErrorCode::UNKNOWN_ERROR, Finish(ciphertext1, &result));
+ EXPECT_EQ(0U, result.size());
+ }
+}
+
+/*
+ * EncryptionOperationsTest.RsaOaepInvalidDigest
+ *
+ * Verifies that RSA-OAEP encryption operations fail in the correct way when asked to operate
+ * without a digest.
+ */
+TEST_F(EncryptionOperationsTest, RsaOaepInvalidDigest) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaEncryptionKey(1024, 3)
+ .Padding(PaddingMode::RSA_OAEP)
+ .Digest(Digest::NONE)));
+ string message = "Hello World!";
+
+ auto params = AuthorizationSetBuilder().Padding(PaddingMode::RSA_OAEP).Digest(Digest::NONE);
+ EXPECT_EQ(ErrorCode::INCOMPATIBLE_DIGEST, Begin(KeyPurpose::ENCRYPT, params));
+}
+
+/*
+ * EncryptionOperationsTest.RsaOaepInvalidDigest
+ *
+ * Verifies that RSA-OAEP encryption operations fail in the correct way when asked to decrypt with a
+ * different digest than was used to encrypt.
+ */
+TEST_F(EncryptionOperationsTest, RsaOaepDecryptWithWrongDigest) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaEncryptionKey(1024, 3)
+ .Padding(PaddingMode::RSA_OAEP)
+ .Digest(Digest::SHA_2_256, Digest::SHA_2_224)));
+ string message = "Hello World!";
+ string ciphertext = EncryptMessage(
+ message,
+ AuthorizationSetBuilder().Digest(Digest::SHA_2_224).Padding(PaddingMode::RSA_OAEP));
+
+ EXPECT_EQ(
+ ErrorCode::OK,
+ Begin(KeyPurpose::DECRYPT,
+ AuthorizationSetBuilder().Digest(Digest::SHA_2_256).Padding(PaddingMode::RSA_OAEP)));
+ string result;
+ EXPECT_EQ(ErrorCode::UNKNOWN_ERROR, Finish(ciphertext, &result));
+ EXPECT_EQ(0U, result.size());
+}
+
+/*
+ * EncryptionOperationsTest.RsaOaepTooLarge
+ *
+ * Verifies that RSA-OAEP encryption operations fail in the correct way when asked to encrypt a
+ * too-large message.
+ */
+TEST_F(EncryptionOperationsTest, RsaOaepTooLarge) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaEncryptionKey(1024, 3)
+ .Padding(PaddingMode::RSA_OAEP)
+ .Digest(Digest::SHA1)));
+ constexpr size_t digest_size = 160 /* SHA1 */ / 8;
+ constexpr size_t oaep_overhead = 2 * digest_size + 2;
+ string message(1024 / 8 - oaep_overhead + 1, 'a');
+ EXPECT_EQ(ErrorCode::OK,
+ Begin(KeyPurpose::ENCRYPT,
+ AuthorizationSetBuilder().Padding(PaddingMode::RSA_OAEP).Digest(Digest::SHA1)));
+ string result;
+ EXPECT_EQ(ErrorCode::INVALID_INPUT_LENGTH, Finish(message, &result));
+ EXPECT_EQ(0U, result.size());
+}
+
+/*
+ * EncryptionOperationsTest.RsaPkcs1Success
+ *
+ * Verifies that RSA PKCS encryption/decrypts works.
+ */
+TEST_F(EncryptionOperationsTest, RsaPkcs1Success) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaEncryptionKey(1024, 3)
+ .Padding(PaddingMode::RSA_PKCS1_1_5_ENCRYPT)));
+
+ string message = "Hello World!";
+ auto params = AuthorizationSetBuilder().Padding(PaddingMode::RSA_PKCS1_1_5_ENCRYPT);
+ string ciphertext1 = EncryptMessage(message, params);
+ EXPECT_EQ(1024U / 8, ciphertext1.size());
+
+ string ciphertext2 = EncryptMessage(message, params);
+ EXPECT_EQ(1024U / 8, ciphertext2.size());
+
+ // PKCS1 v1.5 randomizes padding so every result should be different.
+ EXPECT_NE(ciphertext1, ciphertext2);
+
+ string plaintext = DecryptMessage(ciphertext1, params);
+ EXPECT_EQ(message, plaintext);
+
+ // Decrypting corrupted ciphertext should fail.
+ size_t offset_to_corrupt = random() % ciphertext1.size();
+ char corrupt_byte;
+ do {
+ corrupt_byte = static_cast<char>(random() % 256);
+ } while (corrupt_byte == ciphertext1[offset_to_corrupt]);
+ ciphertext1[offset_to_corrupt] = corrupt_byte;
+
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::DECRYPT, params));
+ string result;
+ EXPECT_EQ(ErrorCode::UNKNOWN_ERROR, Finish(ciphertext1, &result));
+ EXPECT_EQ(0U, result.size());
+}
+
+/*
+ * EncryptionOperationsTest.RsaPkcs1TooLarge
+ *
+ * Verifies that RSA PKCS encryption fails in the correct way when the mssage is too large.
+ */
+TEST_F(EncryptionOperationsTest, RsaPkcs1TooLarge) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaEncryptionKey(1024, 3)
+ .Padding(PaddingMode::RSA_PKCS1_1_5_ENCRYPT)));
+ string message(1024 / 8 - 10, 'a');
+
+ auto params = AuthorizationSetBuilder().Padding(PaddingMode::RSA_PKCS1_1_5_ENCRYPT);
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::ENCRYPT, params));
+ string result;
+ EXPECT_EQ(ErrorCode::INVALID_INPUT_LENGTH, Finish(message, &result));
+ EXPECT_EQ(0U, result.size());
+}
+
+/*
+ * EncryptionOperationsTest.EcdsaEncrypt
+ *
+ * Verifies that attempting to use ECDSA keys to encrypt fails in the correct way.
+ */
+TEST_F(EncryptionOperationsTest, EcdsaEncrypt) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .EcdsaSigningKey(224)
+ .Digest(Digest::NONE)));
+ auto params = AuthorizationSetBuilder().Digest(Digest::NONE);
+ ASSERT_EQ(ErrorCode::UNSUPPORTED_PURPOSE, Begin(KeyPurpose::ENCRYPT, params))
+ << "(Possibly b/33543625)";
+ ASSERT_EQ(ErrorCode::UNSUPPORTED_PURPOSE, Begin(KeyPurpose::DECRYPT, params))
+ << "(Possibly b/33543625)";
+}
+
+/*
+ * EncryptionOperationsTest.HmacEncrypt
+ *
+ * Verifies that attempting to use HMAC keys to encrypt fails in the correct way.
+ */
+TEST_F(EncryptionOperationsTest, HmacEncrypt) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .HmacKey(128)
+ .Digest(Digest::SHA_2_256)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128)));
+ auto params = AuthorizationSetBuilder()
+ .Digest(Digest::SHA_2_256)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MAC_LENGTH, 128);
+ ASSERT_EQ(ErrorCode::UNSUPPORTED_PURPOSE, Begin(KeyPurpose::ENCRYPT, params))
+ << "(Possibly b/33543625)";
+ ASSERT_EQ(ErrorCode::UNSUPPORTED_PURPOSE, Begin(KeyPurpose::DECRYPT, params))
+ << "(Possibly b/33543625)";
+}
+
+/*
+ * EncryptionOperationsTest.AesEcbRoundTripSuccess
+ *
+ * Verifies that AES ECB mode works.
+ */
+TEST_F(EncryptionOperationsTest, AesEcbRoundTripSuccess) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .Authorization(TAG_BLOCK_MODE, BlockMode::ECB)
+ .Padding(PaddingMode::NONE)));
+
+ auto params = AuthorizationSetBuilder().BlockMode(BlockMode::ECB).Padding(PaddingMode::NONE);
+
+ // Two-block message.
+ string message = "12345678901234567890123456789012";
+ string ciphertext1 = EncryptMessage(message, params);
+ EXPECT_EQ(message.size(), ciphertext1.size());
+
+ string ciphertext2 = EncryptMessage(string(message), params);
+ EXPECT_EQ(message.size(), ciphertext2.size());
+
+ // ECB is deterministic.
+ EXPECT_EQ(ciphertext1, ciphertext2);
+
+ string plaintext = DecryptMessage(ciphertext1, params);
+ EXPECT_EQ(message, plaintext);
+}
+
+/*
+ * EncryptionOperationsTest.AesEcbRoundTripSuccess
+ *
+ * Verifies that AES encryption fails in the correct way when an unauthorized mode is specified.
+ */
+TEST_F(EncryptionOperationsTest, AesWrongMode) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .Authorization(TAG_BLOCK_MODE, BlockMode::CBC)
+ .Padding(PaddingMode::NONE)));
+ // Two-block message.
+ string message = "12345678901234567890123456789012";
+ EXPECT_EQ(
+ ErrorCode::INCOMPATIBLE_BLOCK_MODE,
+ Begin(KeyPurpose::ENCRYPT,
+ AuthorizationSetBuilder().BlockMode(BlockMode::ECB).Padding(PaddingMode::NONE)));
+}
+
+/*
+ * EncryptionOperationsTest.AesEcbNoPaddingWrongInputSize
+ *
+ * Verifies that AES encryption fails in the correct way when provided an input that is not a
+ * multiple of the block size and no padding is specified.
+ */
+TEST_F(EncryptionOperationsTest, AesEcbNoPaddingWrongInputSize) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .Authorization(TAG_BLOCK_MODE, BlockMode::ECB)
+ .Padding(PaddingMode::NONE)));
+ // Message is slightly shorter than two blocks.
+ string message(16 * 2 - 1, 'a');
+
+ auto params = AuthorizationSetBuilder().BlockMode(BlockMode::ECB).Padding(PaddingMode::NONE);
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::ENCRYPT, params));
+ string ciphertext;
+ EXPECT_EQ(ErrorCode::INVALID_INPUT_LENGTH, Finish(message, &ciphertext));
+ EXPECT_EQ(0U, ciphertext.size());
+}
+
+/*
+ * EncryptionOperationsTest.AesEcbPkcs7Padding
+ *
+ * Verifies that AES PKCS7 padding works for any message length.
+ */
+TEST_F(EncryptionOperationsTest, AesEcbPkcs7Padding) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .Authorization(TAG_BLOCK_MODE, BlockMode::ECB)
+ .Padding(PaddingMode::PKCS7)));
+
+ auto params = AuthorizationSetBuilder().BlockMode(BlockMode::ECB).Padding(PaddingMode::PKCS7);
+
+ // Try various message lengths; all should work.
+ for (size_t i = 0; i < 32; ++i) {
+ string message(i, 'a');
+ string ciphertext = EncryptMessage(message, params);
+ EXPECT_EQ(i + 16 - (i % 16), ciphertext.size());
+ string plaintext = DecryptMessage(ciphertext, params);
+ EXPECT_EQ(message, plaintext);
+ }
+}
+
+/*
+ * EncryptionOperationsTest.AesEcbWrongPadding
+ *
+ * Verifies that AES enryption fails in the correct way when an unauthorized padding mode is
+ * specified.
+ */
+TEST_F(EncryptionOperationsTest, AesEcbWrongPadding) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .Authorization(TAG_BLOCK_MODE, BlockMode::ECB)
+ .Padding(PaddingMode::NONE)));
+
+ auto params = AuthorizationSetBuilder().BlockMode(BlockMode::ECB).Padding(PaddingMode::PKCS7);
+
+ // Try various message lengths; all should fail
+ for (size_t i = 0; i < 32; ++i) {
+ string message(i, 'a');
+ EXPECT_EQ(ErrorCode::INCOMPATIBLE_PADDING_MODE, Begin(KeyPurpose::ENCRYPT, params));
+ }
+}
+
+/*
+ * EncryptionOperationsTest.AesEcbPkcs7PaddingCorrupted
+ *
+ * Verifies that AES decryption fails in the correct way when the padding is corrupted.
+ */
+TEST_F(EncryptionOperationsTest, AesEcbPkcs7PaddingCorrupted) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .Authorization(TAG_BLOCK_MODE, BlockMode::ECB)
+ .Padding(PaddingMode::PKCS7)));
+
+ auto params = AuthorizationSetBuilder().BlockMode(BlockMode::ECB).Padding(PaddingMode::PKCS7);
+
+ string message = "a";
+ string ciphertext = EncryptMessage(message, params);
+ EXPECT_EQ(16U, ciphertext.size());
+ EXPECT_NE(ciphertext, message);
+ ++ciphertext[ciphertext.size() / 2];
+
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::DECRYPT, params));
+ string plaintext;
+ EXPECT_EQ(ErrorCode::INVALID_INPUT_LENGTH, Finish(message, &plaintext));
+}
+
+HidlBuf CopyIv(const AuthorizationSet& set) {
+ auto iv = set.GetTagValue(TAG_NONCE);
+ EXPECT_TRUE(iv.isOk());
+ return iv.value();
+}
+
+/*
+ * EncryptionOperationsTest.AesCtrRoundTripSuccess
+ *
+ * Verifies that AES CTR mode works.
+ */
+TEST_F(EncryptionOperationsTest, AesCtrRoundTripSuccess) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .Authorization(TAG_BLOCK_MODE, BlockMode::CTR)
+ .Padding(PaddingMode::NONE)));
+
+ auto params = AuthorizationSetBuilder().BlockMode(BlockMode::CTR).Padding(PaddingMode::NONE);
+
+ string message = "123";
+ AuthorizationSet out_params;
+ string ciphertext1 = EncryptMessage(message, params, &out_params);
+ HidlBuf iv1 = CopyIv(out_params);
+ EXPECT_EQ(16U, iv1.size());
+
+ EXPECT_EQ(message.size(), ciphertext1.size());
+
+ out_params.Clear();
+ string ciphertext2 = EncryptMessage(message, params, &out_params);
+ HidlBuf iv2 = CopyIv(out_params);
+ EXPECT_EQ(16U, iv2.size());
+
+ // IVs should be random, so ciphertexts should differ.
+ EXPECT_NE(ciphertext1, ciphertext2);
+
+ auto params_iv1 =
+ AuthorizationSetBuilder().Authorizations(params).Authorization(TAG_NONCE, iv1);
+ auto params_iv2 =
+ AuthorizationSetBuilder().Authorizations(params).Authorization(TAG_NONCE, iv2);
+
+ string plaintext = DecryptMessage(ciphertext1, params_iv1);
+ EXPECT_EQ(message, plaintext);
+ plaintext = DecryptMessage(ciphertext2, params_iv2);
+ EXPECT_EQ(message, plaintext);
+
+ // Using the wrong IV will result in a "valid" decryption, but the data will be garbage.
+ plaintext = DecryptMessage(ciphertext1, params_iv2);
+ EXPECT_NE(message, plaintext);
+ plaintext = DecryptMessage(ciphertext2, params_iv1);
+ EXPECT_NE(message, plaintext);
+}
+
+/*
+ * EncryptionOperationsTest.AesIncremental
+ *
+ * Verifies that AES works, all modes, when provided data in various size increments.
+ */
+TEST_F(EncryptionOperationsTest, AesIncremental) {
+ auto block_modes = {
+ BlockMode::ECB, BlockMode::CBC, BlockMode::CTR, BlockMode::GCM,
+ };
+
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .BlockMode(block_modes)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128)));
+
+ for (int increment = 1; increment <= 240; ++increment) {
+ for (auto block_mode : block_modes) {
+ string message(240, 'a');
+ auto params = AuthorizationSetBuilder()
+ .BlockMode(block_mode)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MAC_LENGTH, 128) /* for GCM */;
+
+ AuthorizationSet output_params;
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::ENCRYPT, params, &output_params));
+
+ string ciphertext;
+ size_t input_consumed;
+ string to_send;
+ for (size_t i = 0; i < message.size(); i += increment) {
+ to_send.append(message.substr(i, increment));
+ EXPECT_EQ(ErrorCode::OK, Update(to_send, &ciphertext, &input_consumed));
+ to_send = to_send.substr(input_consumed);
+
+ switch (block_mode) {
+ case BlockMode::ECB:
+ case BlockMode::CBC:
+ // Implementations must take as many blocks as possible, leaving less than
+ // a block.
+ EXPECT_LE(to_send.length(), 16U);
+ break;
+ case BlockMode::GCM:
+ case BlockMode::CTR:
+ // Implementations must always take all the data.
+ EXPECT_EQ(0U, to_send.length());
+ break;
+ }
+ }
+ EXPECT_EQ(ErrorCode::OK, Finish(to_send, &ciphertext)) << "Error sending " << to_send;
+
+ switch (block_mode) {
+ case BlockMode::GCM:
+ EXPECT_EQ(message.size() + 16, ciphertext.size());
+ break;
+ case BlockMode::CTR:
+ EXPECT_EQ(message.size(), ciphertext.size());
+ break;
+ case BlockMode::CBC:
+ case BlockMode::ECB:
+ EXPECT_EQ(message.size() + message.size() % 16, ciphertext.size());
+ break;
+ }
+
+ auto iv = output_params.GetTagValue(TAG_NONCE);
+ switch (block_mode) {
+ case BlockMode::CBC:
+ case BlockMode::GCM:
+ case BlockMode::CTR:
+ ASSERT_TRUE(iv.isOk()) << "No IV for block mode " << block_mode;
+ EXPECT_EQ(block_mode == BlockMode::GCM ? 12U : 16U, iv.value().size());
+ params.push_back(TAG_NONCE, iv.value());
+ break;
+
+ case BlockMode::ECB:
+ EXPECT_FALSE(iv.isOk()) << "ECB mode should not generate IV";
+ break;
+ }
+
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::DECRYPT, params))
+ << "Decrypt begin() failed for block mode " << block_mode;
+
+ string plaintext;
+ for (size_t i = 0; i < ciphertext.size(); i += increment) {
+ to_send.append(ciphertext.substr(i, increment));
+ EXPECT_EQ(ErrorCode::OK, Update(to_send, &plaintext, &input_consumed));
+ to_send = to_send.substr(input_consumed);
+ }
+ ErrorCode error = Finish(to_send, &plaintext);
+ ASSERT_EQ(ErrorCode::OK, error)
+ << "Decryption failed for block mode " << block_mode << " and increment "
+ << increment << " (Possibly b/33584622)";
+ if (error == ErrorCode::OK) {
+ ASSERT_EQ(message, plaintext) << "Decryption didn't match for block mode "
+ << block_mode << " and increment " << increment;
+ }
+ }
+ }
+}
+
+struct AesCtrSp80038aTestVector {
+ const char* key;
+ const char* nonce;
+ const char* plaintext;
+ const char* ciphertext;
+};
+
+// These test vectors are taken from
+// http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf, section F.5.
+static const AesCtrSp80038aTestVector kAesCtrSp80038aTestVectors[] = {
+ // AES-128
+ {
+ "2b7e151628aed2a6abf7158809cf4f3c", "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff",
+ "6bc1bee22e409f96e93d7e117393172aae2d8a571e03ac9c9eb76fac45af8e51"
+ "30c81c46a35ce411e5fbc1191a0a52eff69f2445df4f9b17ad2b417be66c3710",
+ "874d6191b620e3261bef6864990db6ce9806f66b7970fdff8617187bb9fffdff"
+ "5ae4df3edbd5d35e5b4f09020db03eab1e031dda2fbe03d1792170a0f3009cee",
+ },
+ // AES-192
+ {
+ "8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b", "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff",
+ "6bc1bee22e409f96e93d7e117393172aae2d8a571e03ac9c9eb76fac45af8e51"
+ "30c81c46a35ce411e5fbc1191a0a52eff69f2445df4f9b17ad2b417be66c3710",
+ "1abc932417521ca24f2b0459fe7e6e0b090339ec0aa6faefd5ccc2c6f4ce8e94"
+ "1e36b26bd1ebc670d1bd1d665620abf74f78a7f6d29809585a97daec58c6b050",
+ },
+ // AES-256
+ {
+ "603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4",
+ "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff",
+ "6bc1bee22e409f96e93d7e117393172aae2d8a571e03ac9c9eb76fac45af8e51"
+ "30c81c46a35ce411e5fbc1191a0a52eff69f2445df4f9b17ad2b417be66c3710",
+ "601ec313775789a5b7a7f504bbf3d228f443e3ca4d62b59aca84e990cacaf5c5"
+ "2b0930daa23de94ce87017ba2d84988ddfc9c58db67aada613c2dd08457941a6",
+ },
+};
+
+/*
+ * EncryptionOperationsTest.AesCtrSp80038aTestVector
+ *
+ * Verifies AES CTR implementation against SP800-38A test vectors.
+ */
+TEST_F(EncryptionOperationsTest, AesCtrSp80038aTestVector) {
+ for (size_t i = 0; i < 3; i++) {
+ const AesCtrSp80038aTestVector& test(kAesCtrSp80038aTestVectors[i]);
+ const string key = hex2str(test.key);
+ const string nonce = hex2str(test.nonce);
+ const string plaintext = hex2str(test.plaintext);
+ const string ciphertext = hex2str(test.ciphertext);
+ CheckAesCtrTestVector(key, nonce, plaintext, ciphertext);
+ }
+}
+
+/*
+ * EncryptionOperationsTest.AesCtrIncompatiblePaddingMode
+ *
+ * Verifies that keymaster rejects use of CTR mode with PKCS7 padding in the correct way.
+ */
+TEST_F(EncryptionOperationsTest, AesCtrIncompatiblePaddingMode) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .Authorization(TAG_BLOCK_MODE, BlockMode::CTR)
+ .Padding(PaddingMode::PKCS7)));
+ auto params = AuthorizationSetBuilder().BlockMode(BlockMode::CTR).Padding(PaddingMode::NONE);
+ EXPECT_EQ(ErrorCode::INCOMPATIBLE_PADDING_MODE, Begin(KeyPurpose::ENCRYPT, params));
+}
+
+/*
+ * EncryptionOperationsTest.AesCtrInvalidCallerNonce
+ *
+ * Verifies that keymaster fails correctly when the user supplies an incorrect-size nonce.
+ */
+TEST_F(EncryptionOperationsTest, AesCtrInvalidCallerNonce) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .Authorization(TAG_BLOCK_MODE, BlockMode::CTR)
+ .Authorization(TAG_CALLER_NONCE)
+ .Padding(PaddingMode::NONE)));
+
+ auto params = AuthorizationSetBuilder()
+ .BlockMode(BlockMode::CTR)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_NONCE, HidlBuf(string(1, 'a')));
+ EXPECT_EQ(ErrorCode::INVALID_NONCE, Begin(KeyPurpose::ENCRYPT, params));
+
+ params = AuthorizationSetBuilder()
+ .BlockMode(BlockMode::CTR)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_NONCE, HidlBuf(string(15, 'a')));
+ EXPECT_EQ(ErrorCode::INVALID_NONCE, Begin(KeyPurpose::ENCRYPT, params));
+
+ params = AuthorizationSetBuilder()
+ .BlockMode(BlockMode::CTR)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_NONCE, HidlBuf(string(17, 'a')));
+ EXPECT_EQ(ErrorCode::INVALID_NONCE, Begin(KeyPurpose::ENCRYPT, params));
+}
+
+/*
+ * EncryptionOperationsTest.AesCtrInvalidCallerNonce
+ *
+ * Verifies that keymaster fails correctly when the user supplies an incorrect-size nonce.
+ */
+TEST_F(EncryptionOperationsTest, AesCbcRoundTripSuccess) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .Authorization(TAG_BLOCK_MODE, BlockMode::CBC)
+ .Padding(PaddingMode::NONE)));
+ // Two-block message.
+ string message = "12345678901234567890123456789012";
+ auto params = AuthorizationSetBuilder().BlockMode(BlockMode::CBC).Padding(PaddingMode::NONE);
+ AuthorizationSet out_params;
+ string ciphertext1 = EncryptMessage(message, params, &out_params);
+ HidlBuf iv1 = CopyIv(out_params);
+ EXPECT_EQ(message.size(), ciphertext1.size());
+
+ out_params.Clear();
+
+ string ciphertext2 = EncryptMessage(message, params, &out_params);
+ HidlBuf iv2 = CopyIv(out_params);
+ EXPECT_EQ(message.size(), ciphertext2.size());
+
+ // IVs should be random, so ciphertexts should differ.
+ EXPECT_NE(ciphertext1, ciphertext2);
+
+ params.push_back(TAG_NONCE, iv1);
+ string plaintext = DecryptMessage(ciphertext1, params);
+ EXPECT_EQ(message, plaintext);
+}
+
+/*
+ * EncryptionOperationsTest.AesCallerNonce
+ *
+ * Verifies that AES caller-provided nonces work correctly.
+ */
+TEST_F(EncryptionOperationsTest, AesCallerNonce) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .Authorization(TAG_BLOCK_MODE, BlockMode::CBC)
+ .Authorization(TAG_CALLER_NONCE)
+ .Padding(PaddingMode::NONE)));
+
+ string message = "12345678901234567890123456789012";
+
+ // Don't specify nonce, should get a random one.
+ AuthorizationSetBuilder params =
+ AuthorizationSetBuilder().BlockMode(BlockMode::CBC).Padding(PaddingMode::NONE);
+ AuthorizationSet out_params;
+ string ciphertext = EncryptMessage(message, params, &out_params);
+ EXPECT_EQ(message.size(), ciphertext.size());
+ EXPECT_EQ(16U, out_params.GetTagValue(TAG_NONCE).value().size());
+
+ params.push_back(TAG_NONCE, out_params.GetTagValue(TAG_NONCE).value());
+ string plaintext = DecryptMessage(ciphertext, params);
+ EXPECT_EQ(message, plaintext);
+
+ // Now specify a nonce, should also work.
+ params = AuthorizationSetBuilder()
+ .BlockMode(BlockMode::CBC)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_NONCE, HidlBuf("abcdefghijklmnop"));
+ out_params.Clear();
+ ciphertext = EncryptMessage(message, params, &out_params);
+
+ // Decrypt with correct nonce.
+ plaintext = DecryptMessage(ciphertext, params);
+ EXPECT_EQ(message, plaintext);
+
+ // Try with wrong nonce.
+ params = AuthorizationSetBuilder()
+ .BlockMode(BlockMode::CBC)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_NONCE, HidlBuf("aaaaaaaaaaaaaaaa"));
+ plaintext = DecryptMessage(ciphertext, params);
+ EXPECT_NE(message, plaintext);
+}
+
+/*
+ * EncryptionOperationsTest.AesCallerNonceProhibited
+ *
+ * Verifies that caller-provided nonces are not permitted when not specified in the key
+ * authorizations.
+ */
+TEST_F(EncryptionOperationsTest, AesCallerNonceProhibited) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .Authorization(TAG_BLOCK_MODE, BlockMode::CBC)
+ .Padding(PaddingMode::NONE)));
+
+ string message = "12345678901234567890123456789012";
+
+ // Don't specify nonce, should get a random one.
+ AuthorizationSetBuilder params =
+ AuthorizationSetBuilder().BlockMode(BlockMode::CBC).Padding(PaddingMode::NONE);
+ AuthorizationSet out_params;
+ string ciphertext = EncryptMessage(message, params, &out_params);
+ EXPECT_EQ(message.size(), ciphertext.size());
+ EXPECT_EQ(16U, out_params.GetTagValue(TAG_NONCE).value().size());
+
+ params.push_back(TAG_NONCE, out_params.GetTagValue(TAG_NONCE).value());
+ string plaintext = DecryptMessage(ciphertext, params);
+ EXPECT_EQ(message, plaintext);
+
+ // Now specify a nonce, should fail
+ params = AuthorizationSetBuilder()
+ .BlockMode(BlockMode::CBC)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_NONCE, HidlBuf("abcdefghijklmnop"));
+ out_params.Clear();
+ EXPECT_EQ(ErrorCode::CALLER_NONCE_PROHIBITED, Begin(KeyPurpose::ENCRYPT, params, &out_params));
+}
+
+/*
+ * EncryptionOperationsTest.AesGcmRoundTripSuccess
+ *
+ * Verifies that AES GCM mode works.
+ */
+TEST_F(EncryptionOperationsTest, AesGcmRoundTripSuccess) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .Authorization(TAG_BLOCK_MODE, BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128)));
+
+ string aad = "foobar";
+ string message = "123456789012345678901234567890123456";
+
+ auto begin_params = AuthorizationSetBuilder()
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MAC_LENGTH, 128);
+
+ auto update_params =
+ AuthorizationSetBuilder().Authorization(TAG_ASSOCIATED_DATA, aad.data(), aad.size());
+
+ // Encrypt
+ AuthorizationSet begin_out_params;
+ ASSERT_EQ(ErrorCode::OK, Begin(KeyPurpose::ENCRYPT, begin_params, &begin_out_params))
+ << "Begin encrypt";
+ string ciphertext;
+ AuthorizationSet update_out_params;
+ ASSERT_EQ(ErrorCode::OK,
+ Finish(op_handle_, update_params, message, "", &update_out_params, &ciphertext));
+
+ // Grab nonce
+ begin_params.push_back(begin_out_params);
+
+ // Decrypt.
+ ASSERT_EQ(ErrorCode::OK, Begin(KeyPurpose::DECRYPT, begin_params)) << "Begin decrypt";
+ string plaintext;
+ size_t input_consumed;
+ ASSERT_EQ(ErrorCode::OK, Update(op_handle_, update_params, ciphertext, &update_out_params,
+ &plaintext, &input_consumed));
+ EXPECT_EQ(ciphertext.size(), input_consumed);
+ EXPECT_EQ(ErrorCode::OK, Finish("", &plaintext));
+
+ EXPECT_EQ(message, plaintext);
+}
+
+/*
+ * EncryptionOperationsTest.AesGcmTooShortTag
+ *
+ * Verifies that AES GCM mode fails correctly when a too-short tag length is specified.
+ */
+TEST_F(EncryptionOperationsTest, AesGcmTooShortTag) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128)));
+ string message = "123456789012345678901234567890123456";
+ auto params = AuthorizationSetBuilder()
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MAC_LENGTH, 96);
+
+ EXPECT_EQ(ErrorCode::INVALID_MAC_LENGTH, Begin(KeyPurpose::ENCRYPT, params));
+}
+
+/*
+ * EncryptionOperationsTest.AesGcmTooShortTagOnDecrypt
+ *
+ * Verifies that AES GCM mode fails correctly when a too-short tag is provided to decryption.
+ */
+TEST_F(EncryptionOperationsTest, AesGcmTooShortTagOnDecrypt) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128)));
+ string aad = "foobar";
+ string message = "123456789012345678901234567890123456";
+ auto params = AuthorizationSetBuilder()
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MAC_LENGTH, 128);
+
+ auto finish_params =
+ AuthorizationSetBuilder().Authorization(TAG_ASSOCIATED_DATA, aad.data(), aad.size());
+
+ // Encrypt
+ AuthorizationSet begin_out_params;
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::ENCRYPT, params, &begin_out_params));
+ EXPECT_EQ(1U, begin_out_params.size());
+ ASSERT_TRUE(begin_out_params.GetTagValue(TAG_NONCE).isOk());
+
+ AuthorizationSet finish_out_params;
+ string ciphertext;
+ EXPECT_EQ(ErrorCode::OK, Finish(op_handle_, finish_params, message, "" /* signature */,
+ &finish_out_params, &ciphertext));
+
+ params = AuthorizationSetBuilder()
+ .Authorizations(begin_out_params)
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MAC_LENGTH, 96);
+
+ // Decrypt.
+ EXPECT_EQ(ErrorCode::INVALID_MAC_LENGTH, Begin(KeyPurpose::DECRYPT, params));
+}
+
+/*
+ * EncryptionOperationsTest.AesGcmCorruptKey
+ *
+ * Verifies that AES GCM mode fails correctly when the decryption key is incorrect.
+ */
+TEST_F(EncryptionOperationsTest, AesGcmCorruptKey) {
+ string nonce = {
+ 0xb7, 0x94, 0x37, 0xae, 0x08, 0xff, 0x35, 0x5d, 0x7d, 0x8a, 0x4d, 0x0f,
+ };
+ string ciphertext = {
+ 0xb3, 0xf6, 0x79, 0x9e, 0x8f, 0x93, 0x26, 0xf2, 0xdf, 0x1e, 0x80, 0xfc, 0xd2, 0xcb, 0x16,
+ 0xd7, 0x8c, 0x9d, 0xc7, 0xcc, 0x14, 0xbb, 0x67, 0x78, 0x62, 0xdc, 0x6c, 0x63, 0x9b, 0x3a,
+ 0x63, 0x38, 0xd2, 0x4b, 0x31, 0x2d, 0x39, 0x89, 0xe5, 0x92, 0x0b, 0x5d, 0xbf, 0xc9, 0x76,
+ 0x76, 0x5e, 0xfb, 0xfe, 0x57, 0xbb, 0x38, 0x59, 0x40, 0xa7, 0xa4, 0x3b, 0xdf, 0x05, 0xbd,
+ 0xda, 0xe3, 0xc9, 0xd6, 0xa2, 0xfb, 0xbd, 0xfc, 0xc0, 0xcb, 0xa0,
+ };
+
+ auto params = AuthorizationSetBuilder()
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MAC_LENGTH, 128)
+ .Authorization(TAG_NONCE, nonce.data(), nonce.size());
+
+ auto import_params = AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_CALLER_NONCE)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128);
+
+ // Import correct key and decrypt
+ string key = {
+ 0xba, 0x76, 0x35, 0x4f, 0x0a, 0xed, 0x6e, 0x8d,
+ 0x91, 0xf4, 0x5c, 0x4f, 0xf5, 0xa0, 0x62, 0xdb,
+ };
+ ASSERT_EQ(ErrorCode::OK, ImportKey(import_params, KeyFormat::RAW, key));
+ string plaintext = DecryptMessage(ciphertext, params);
+ EXPECT_EQ(ErrorCode::OK, DeleteKey());
+
+ // Corrupt key and attempt to decrypt
+ key[0] = 0;
+ ASSERT_EQ(ErrorCode::OK, ImportKey(import_params, KeyFormat::RAW, key));
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::DECRYPT, params));
+ EXPECT_EQ(ErrorCode::VERIFICATION_FAILED, Finish(ciphertext, &plaintext));
+ EXPECT_EQ(ErrorCode::OK, DeleteKey());
+}
+
+/*
+ * EncryptionOperationsTest.AesGcmAadNoData
+ *
+ * Verifies that AES GCM mode works when provided additional authenticated data, but no data to
+ * encrypt.
+ */
+TEST_F(EncryptionOperationsTest, AesGcmAadNoData) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128)));
+
+ string aad = "1234567890123456";
+ auto params = AuthorizationSetBuilder()
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MAC_LENGTH, 128);
+
+ auto finish_params =
+ AuthorizationSetBuilder().Authorization(TAG_ASSOCIATED_DATA, aad.data(), aad.size());
+
+ // Encrypt
+ AuthorizationSet begin_out_params;
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::ENCRYPT, params, &begin_out_params));
+ string ciphertext;
+ AuthorizationSet finish_out_params;
+ EXPECT_EQ(ErrorCode::OK, Finish(op_handle_, finish_params, "" /* input */, "" /* signature */,
+ &finish_out_params, &ciphertext));
+ EXPECT_TRUE(finish_out_params.empty());
+
+ // Grab nonce
+ params.push_back(begin_out_params);
+
+ // Decrypt.
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::DECRYPT, params));
+ string plaintext;
+ EXPECT_EQ(ErrorCode::OK, Finish(op_handle_, finish_params, ciphertext, "" /* signature */,
+ &finish_out_params, &plaintext))
+ << "(Possibly b/33615032)";
+
+ EXPECT_TRUE(finish_out_params.empty());
+
+ EXPECT_EQ("", plaintext);
+}
+
+/*
+ * EncryptionOperationsTest.AesGcmMultiPartAad
+ *
+ * Verifies that AES GCM mode works when provided additional authenticated data in multiple chunks.
+ */
+TEST_F(EncryptionOperationsTest, AesGcmMultiPartAad) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128)));
+
+ string message = "123456789012345678901234567890123456";
+ auto begin_params = AuthorizationSetBuilder()
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MAC_LENGTH, 128);
+ AuthorizationSet begin_out_params;
+
+ auto update_params =
+ AuthorizationSetBuilder().Authorization(TAG_ASSOCIATED_DATA, "foo", (size_t)3);
+
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::ENCRYPT, begin_params, &begin_out_params));
+
+ // No data, AAD only.
+ string ciphertext;
+ size_t input_consumed;
+ AuthorizationSet update_out_params;
+ EXPECT_EQ(ErrorCode::OK, Update(op_handle_, update_params, "" /* input */, &update_out_params,
+ &ciphertext, &input_consumed));
+ EXPECT_EQ(0U, input_consumed);
+ EXPECT_EQ(0U, ciphertext.size());
+ EXPECT_TRUE(update_out_params.empty());
+
+ // AAD and data.
+ EXPECT_EQ(ErrorCode::OK, Update(op_handle_, update_params, message, &update_out_params,
+ &ciphertext, &input_consumed));
+ EXPECT_EQ(message.size(), input_consumed);
+ EXPECT_EQ(message.size(), ciphertext.size());
+ EXPECT_TRUE(update_out_params.empty());
+
+ EXPECT_EQ(ErrorCode::OK, Finish("" /* input */, &ciphertext));
+
+ // Grab nonce.
+ begin_params.push_back(begin_out_params);
+
+ // Decrypt
+ update_params =
+ AuthorizationSetBuilder().Authorization(TAG_ASSOCIATED_DATA, "foofoo", (size_t)6);
+
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::DECRYPT, begin_params));
+ string plaintext;
+ EXPECT_EQ(ErrorCode::OK, Finish(op_handle_, update_params, ciphertext, "" /* signature */,
+ &update_out_params, &plaintext));
+ EXPECT_TRUE(update_out_params.empty());
+ EXPECT_EQ(message, plaintext);
+}
+
+/*
+ * EncryptionOperationsTest.AesGcmAadOutOfOrder
+ *
+ * Verifies that AES GCM mode fails correctly when given AAD after data to encipher.
+ */
+TEST_F(EncryptionOperationsTest, AesGcmAadOutOfOrder) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128)));
+
+ string message = "123456789012345678901234567890123456";
+ auto begin_params = AuthorizationSetBuilder()
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MAC_LENGTH, 128);
+ AuthorizationSet begin_out_params;
+
+ auto update_params =
+ AuthorizationSetBuilder().Authorization(TAG_ASSOCIATED_DATA, "foo", (size_t)3);
+
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::ENCRYPT, begin_params, &begin_out_params));
+
+ // No data, AAD only.
+ string ciphertext;
+ size_t input_consumed;
+ AuthorizationSet update_out_params;
+ EXPECT_EQ(ErrorCode::OK, Update(op_handle_, update_params, "" /* input */, &update_out_params,
+ &ciphertext, &input_consumed));
+ EXPECT_EQ(0U, input_consumed);
+ EXPECT_EQ(0U, ciphertext.size());
+ EXPECT_TRUE(update_out_params.empty());
+
+ // AAD and data.
+ EXPECT_EQ(ErrorCode::OK, Update(op_handle_, update_params, message, &update_out_params,
+ &ciphertext, &input_consumed));
+ EXPECT_EQ(message.size(), input_consumed);
+ EXPECT_EQ(message.size(), ciphertext.size());
+ EXPECT_TRUE(update_out_params.empty());
+
+ // More AAD
+ EXPECT_EQ(ErrorCode::INVALID_TAG, Update(op_handle_, update_params, "", &update_out_params,
+ &ciphertext, &input_consumed));
+
+ op_handle_ = kOpHandleSentinel;
+}
+
+/*
+ * EncryptionOperationsTest.AesGcmBadAad
+ *
+ * Verifies that AES GCM decryption fails correctly when additional authenticated date is wrong.
+ */
+TEST_F(EncryptionOperationsTest, AesGcmBadAad) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128)));
+
+ string message = "12345678901234567890123456789012";
+ auto begin_params = AuthorizationSetBuilder()
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MAC_LENGTH, 128);
+
+ auto finish_params =
+ AuthorizationSetBuilder().Authorization(TAG_ASSOCIATED_DATA, "foobar", (size_t)6);
+
+ // Encrypt
+ AuthorizationSet begin_out_params;
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::ENCRYPT, begin_params, &begin_out_params));
+ string ciphertext;
+ AuthorizationSet finish_out_params;
+ EXPECT_EQ(ErrorCode::OK, Finish(op_handle_, finish_params, message, "" /* signature */,
+ &finish_out_params, &ciphertext));
+
+ // Grab nonce
+ begin_params.push_back(begin_out_params);
+
+ finish_params = AuthorizationSetBuilder().Authorization(TAG_ASSOCIATED_DATA,
+ "barfoo" /* Wrong AAD */, (size_t)6);
+
+ // Decrypt.
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::DECRYPT, begin_params, &begin_out_params));
+ string plaintext;
+ EXPECT_EQ(ErrorCode::VERIFICATION_FAILED,
+ Finish(op_handle_, finish_params, ciphertext, "" /* signature */, &finish_out_params,
+ &plaintext));
+}
+
+/*
+ * EncryptionOperationsTest.AesGcmWrongNonce
+ *
+ * Verifies that AES GCM decryption fails correctly when the nonce is incorrect.
+ */
+TEST_F(EncryptionOperationsTest, AesGcmWrongNonce) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128)));
+
+ string message = "12345678901234567890123456789012";
+ auto begin_params = AuthorizationSetBuilder()
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MAC_LENGTH, 128);
+
+ auto finish_params =
+ AuthorizationSetBuilder().Authorization(TAG_ASSOCIATED_DATA, "foobar", (size_t)6);
+
+ // Encrypt
+ AuthorizationSet begin_out_params;
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::ENCRYPT, begin_params, &begin_out_params));
+ string ciphertext;
+ AuthorizationSet finish_out_params;
+ EXPECT_EQ(ErrorCode::OK, Finish(op_handle_, finish_params, message, "" /* signature */,
+ &finish_out_params, &ciphertext));
+
+ // Wrong nonce
+ begin_params.push_back(TAG_NONCE, HidlBuf("123456789012"));
+
+ // Decrypt.
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::DECRYPT, begin_params, &begin_out_params));
+ string plaintext;
+ EXPECT_EQ(ErrorCode::VERIFICATION_FAILED,
+ Finish(op_handle_, finish_params, ciphertext, "" /* signature */, &finish_out_params,
+ &plaintext));
+
+ // With wrong nonce, should have gotten garbage plaintext (or none).
+ EXPECT_NE(message, plaintext);
+}
+
+/*
+ * EncryptionOperationsTest.AesGcmCorruptTag
+ *
+ * Verifies that AES GCM decryption fails correctly when the tag is wrong.
+ */
+TEST_F(EncryptionOperationsTest, AesGcmCorruptTag) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128)));
+
+ string aad = "1234567890123456";
+ string message = "123456789012345678901234567890123456";
+
+ auto params = AuthorizationSetBuilder()
+ .BlockMode(BlockMode::GCM)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MAC_LENGTH, 128);
+
+ auto finish_params =
+ AuthorizationSetBuilder().Authorization(TAG_ASSOCIATED_DATA, aad.data(), aad.size());
+
+ // Encrypt
+ AuthorizationSet begin_out_params;
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::ENCRYPT, params, &begin_out_params));
+ string ciphertext;
+ AuthorizationSet finish_out_params;
+ EXPECT_EQ(ErrorCode::OK, Finish(op_handle_, finish_params, message, "" /* signature */,
+ &finish_out_params, &ciphertext));
+ EXPECT_TRUE(finish_out_params.empty());
+
+ // Corrupt tag
+ ++(*ciphertext.rbegin());
+
+ // Grab nonce
+ params.push_back(begin_out_params);
+
+ // Decrypt.
+ EXPECT_EQ(ErrorCode::OK, Begin(KeyPurpose::DECRYPT, params));
+ string plaintext;
+ EXPECT_EQ(ErrorCode::VERIFICATION_FAILED,
+ Finish(op_handle_, finish_params, ciphertext, "" /* signature */, &finish_out_params,
+ &plaintext));
+ EXPECT_TRUE(finish_out_params.empty());
+}
+
+typedef KeymasterHidlTest MaxOperationsTest;
+
+/*
+ * MaxOperationsTest.TestLimitAes
+ *
+ * Verifies that the max uses per boot tag works correctly with AES keys.
+ */
+TEST_F(MaxOperationsTest, TestLimitAes) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .EcbMode()
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_MAX_USES_PER_BOOT, 3)));
+
+ string message = "1234567890123456";
+
+ auto params = AuthorizationSetBuilder().EcbMode().Padding(PaddingMode::NONE);
+
+ EncryptMessage(message, params);
+ EncryptMessage(message, params);
+ EncryptMessage(message, params);
+
+ // Fourth time should fail.
+ EXPECT_EQ(ErrorCode::KEY_MAX_OPS_EXCEEDED, Begin(KeyPurpose::ENCRYPT, params));
+}
+
+/*
+ * MaxOperationsTest.TestLimitAes
+ *
+ * Verifies that the max uses per boot tag works correctly with RSA keys.
+ */
+TEST_F(MaxOperationsTest, TestLimitRsa) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaSigningKey(1024, 3)
+ .NoDigestOrPadding()
+ .Authorization(TAG_MAX_USES_PER_BOOT, 3)));
+
+ string message = "1234567890123456";
+
+ auto params = AuthorizationSetBuilder().NoDigestOrPadding();
+
+ SignMessage(message, params);
+ SignMessage(message, params);
+ SignMessage(message, params);
+
+ // Fourth time should fail.
+ EXPECT_EQ(ErrorCode::KEY_MAX_OPS_EXCEEDED, Begin(KeyPurpose::SIGN, params));
+}
+
+typedef KeymasterHidlTest AddEntropyTest;
+
+/*
+ * AddEntropyTest.AddEntropy
+ *
+ * Verifies that the addRngEntropy method doesn't blow up. There's no way to test that entropy is
+ * actually added.
+ */
+TEST_F(AddEntropyTest, AddEntropy) {
+ EXPECT_EQ(ErrorCode::OK, keymaster().addRngEntropy(HidlBuf("foo")));
+}
+
+/*
+ * AddEntropyTest.AddEmptyEntropy
+ *
+ * Verifies that the addRngEntropy method doesn't blow up when given an empty buffer.
+ */
+TEST_F(AddEntropyTest, AddEmptyEntropy) {
+ EXPECT_EQ(ErrorCode::OK, keymaster().addRngEntropy(HidlBuf()));
+}
+
+/*
+ * AddEntropyTest.AddLargeEntropy
+ *
+ * Verifies that the addRngEntropy method doesn't blow up when given a largish amount of data.
+ */
+TEST_F(AddEntropyTest, AddLargeEntropy) {
+ EXPECT_EQ(ErrorCode::OK, keymaster().addRngEntropy(HidlBuf(string(16 * 1024, 'a'))));
+}
+
+typedef KeymasterHidlTest AttestationTest;
+
+/*
+ * AttestationTest.RsaAttestation
+ *
+ * Verifies that attesting to RSA keys works and generates the expected output.
+ */
+TEST_F(AttestationTest, RsaAttestation) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .RsaSigningKey(1024, 3)
+ .Digest(Digest::NONE)
+ .Padding(PaddingMode::NONE)
+ .Authorization(TAG_INCLUDE_UNIQUE_ID)));
+
+ hidl_vec<hidl_vec<uint8_t>> cert_chain;
+ EXPECT_EQ(ErrorCode::OK, AttestKey(AuthorizationSetBuilder().Authorization(
+ TAG_ATTESTATION_CHALLENGE, HidlBuf("challenge")),
+ &cert_chain));
+ EXPECT_GE(cert_chain.size(), 2U);
+ EXPECT_TRUE(verify_chain(cert_chain));
+ EXPECT_TRUE(verify_attestation_record("challenge", //
+ key_characteristics_.softwareEnforced, //
+ key_characteristics_.teeEnforced, //
+ cert_chain[0]));
+}
+
+/*
+ * AttestationTest.EcAttestation
+ *
+ * Verifies that attesting to EC keys works and generates the expected output.
+ */
+TEST_F(AttestationTest, EcAttestation) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .EcdsaSigningKey(EcCurve::P_256)
+ .Digest(Digest::SHA_2_256)
+ .Authorization(TAG_INCLUDE_UNIQUE_ID)));
+
+ hidl_vec<hidl_vec<uint8_t>> cert_chain;
+ EXPECT_EQ(ErrorCode::OK, AttestKey(AuthorizationSetBuilder().Authorization(
+ TAG_ATTESTATION_CHALLENGE, HidlBuf("challenge")),
+ &cert_chain));
+ EXPECT_GE(cert_chain.size(), 2U);
+ EXPECT_TRUE(verify_chain(cert_chain));
+
+ EXPECT_TRUE(verify_attestation_record("challenge", //
+ key_characteristics_.softwareEnforced, //
+ key_characteristics_.teeEnforced, //
+ cert_chain[0]));
+}
+
+/*
+ * AttestationTest.AesAttestation
+ *
+ * Verifies that attesting to AES keys fails in the expected way.
+ */
+TEST_F(AttestationTest, AesAttestation) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .AesEncryptionKey(128)
+ .EcbMode()
+ .Padding(PaddingMode::PKCS7)));
+
+ hidl_vec<hidl_vec<uint8_t>> cert_chain;
+ EXPECT_EQ(ErrorCode::INCOMPATIBLE_ALGORITHM,
+ AttestKey(AuthorizationSetBuilder().Authorization(TAG_ATTESTATION_CHALLENGE,
+ HidlBuf("challenge")),
+ &cert_chain));
+}
+
+/*
+ * AttestationTest.HmacAttestation
+ *
+ * Verifies that attesting to HMAC keys fails in the expected way.
+ */
+TEST_F(AttestationTest, HmacAttestation) {
+ ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+ .Authorization(TAG_NO_AUTH_REQUIRED)
+ .HmacKey(128)
+ .EcbMode()
+ .Digest(Digest::SHA_2_256)
+ .Authorization(TAG_MIN_MAC_LENGTH, 128)));
+
+ hidl_vec<hidl_vec<uint8_t>> cert_chain;
+ EXPECT_EQ(ErrorCode::INCOMPATIBLE_ALGORITHM,
+ AttestKey(AuthorizationSetBuilder().Authorization(TAG_ATTESTATION_CHALLENGE,
+ HidlBuf("challenge")),
+ &cert_chain));
+}
+
+} // namespace test
+} // namespace V3_0
+} // namespace keymaster
+} // namespace hardware
+} // namespace android
+
+int main(int argc, char** argv) {
+ ::testing::InitGoogleTest(&argc, argv);
+ if (argc == 2) {
+ ALOGI("Running keymaster VTS against service \"%s\"", argv[1]);
+ service_name = argv[1];
+ }
+ int status = RUN_ALL_TESTS();
+ ALOGI("Test result = %d", status);
+ return status;
+}
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