Hulk did something

[bytom/vapor.git] / vendor / golang.org / x / crypto / chacha20poly1305 / chacha20poly1305_test.go

diff --git a/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_test.go b/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_test.go
new file mode 100644 (file)
index 0000000..78f981a
--- /dev/null
+++ b/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_test.go
@@ -0,0 +1,182 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package chacha20poly1305
+
+import (
+       "bytes"
+       cr "crypto/rand"
+       "encoding/hex"
+       mr "math/rand"
+       "testing"
+)
+
+func TestVectors(t *testing.T) {
+       for i, test := range chacha20Poly1305Tests {
+               key, _ := hex.DecodeString(test.key)
+               nonce, _ := hex.DecodeString(test.nonce)
+               ad, _ := hex.DecodeString(test.aad)
+               plaintext, _ := hex.DecodeString(test.plaintext)
+
+               aead, err := New(key)
+               if err != nil {
+                       t.Fatal(err)
+               }
+
+               ct := aead.Seal(nil, nonce, plaintext, ad)
+               if ctHex := hex.EncodeToString(ct); ctHex != test.out {
+                       t.Errorf("#%d: got %s, want %s", i, ctHex, test.out)
+                       continue
+               }
+
+               plaintext2, err := aead.Open(nil, nonce, ct, ad)
+               if err != nil {
+                       t.Errorf("#%d: Open failed", i)
+                       continue
+               }
+
+               if !bytes.Equal(plaintext, plaintext2) {
+                       t.Errorf("#%d: plaintext's don't match: got %x vs %x", i, plaintext2, plaintext)
+                       continue
+               }
+
+               if len(ad) > 0 {
+                       alterAdIdx := mr.Intn(len(ad))
+                       ad[alterAdIdx] ^= 0x80
+                       if _, err := aead.Open(nil, nonce, ct, ad); err == nil {
+                               t.Errorf("#%d: Open was successful after altering additional data", i)
+                       }
+                       ad[alterAdIdx] ^= 0x80
+               }
+
+               alterNonceIdx := mr.Intn(aead.NonceSize())
+               nonce[alterNonceIdx] ^= 0x80
+               if _, err := aead.Open(nil, nonce, ct, ad); err == nil {
+                       t.Errorf("#%d: Open was successful after altering nonce", i)
+               }
+               nonce[alterNonceIdx] ^= 0x80
+
+               alterCtIdx := mr.Intn(len(ct))
+               ct[alterCtIdx] ^= 0x80
+               if _, err := aead.Open(nil, nonce, ct, ad); err == nil {
+                       t.Errorf("#%d: Open was successful after altering ciphertext", i)
+               }
+               ct[alterCtIdx] ^= 0x80
+       }
+}
+
+func TestRandom(t *testing.T) {
+       // Some random tests to verify Open(Seal) == Plaintext
+       for i := 0; i < 256; i++ {
+               var nonce [12]byte
+               var key [32]byte
+
+               al := mr.Intn(128)
+               pl := mr.Intn(16384)
+               ad := make([]byte, al)
+               plaintext := make([]byte, pl)
+               cr.Read(key[:])
+               cr.Read(nonce[:])
+               cr.Read(ad)
+               cr.Read(plaintext)
+
+               aead, err := New(key[:])
+               if err != nil {
+                       t.Fatal(err)
+               }
+
+               ct := aead.Seal(nil, nonce[:], plaintext, ad)
+
+               plaintext2, err := aead.Open(nil, nonce[:], ct, ad)
+               if err != nil {
+                       t.Errorf("Random #%d: Open failed", i)
+                       continue
+               }
+
+               if !bytes.Equal(plaintext, plaintext2) {
+                       t.Errorf("Random #%d: plaintext's don't match: got %x vs %x", i, plaintext2, plaintext)
+                       continue
+               }
+
+               if len(ad) > 0 {
+                       alterAdIdx := mr.Intn(len(ad))
+                       ad[alterAdIdx] ^= 0x80
+                       if _, err := aead.Open(nil, nonce[:], ct, ad); err == nil {
+                               t.Errorf("Random #%d: Open was successful after altering additional data", i)
+                       }
+                       ad[alterAdIdx] ^= 0x80
+               }
+
+               alterNonceIdx := mr.Intn(aead.NonceSize())
+               nonce[alterNonceIdx] ^= 0x80
+               if _, err := aead.Open(nil, nonce[:], ct, ad); err == nil {
+                       t.Errorf("Random #%d: Open was successful after altering nonce", i)
+               }
+               nonce[alterNonceIdx] ^= 0x80
+
+               alterCtIdx := mr.Intn(len(ct))
+               ct[alterCtIdx] ^= 0x80
+               if _, err := aead.Open(nil, nonce[:], ct, ad); err == nil {
+                       t.Errorf("Random #%d: Open was successful after altering ciphertext", i)
+               }
+               ct[alterCtIdx] ^= 0x80
+       }
+}
+
+func benchamarkChaCha20Poly1305Seal(b *testing.B, buf []byte) {
+       b.SetBytes(int64(len(buf)))
+
+       var key [32]byte
+       var nonce [12]byte
+       var ad [13]byte
+       var out []byte
+
+       aead, _ := New(key[:])
+       b.ResetTimer()
+       for i := 0; i < b.N; i++ {
+               out = aead.Seal(out[:0], nonce[:], buf[:], ad[:])
+       }
+}
+
+func benchamarkChaCha20Poly1305Open(b *testing.B, buf []byte) {
+       b.SetBytes(int64(len(buf)))
+
+       var key [32]byte
+       var nonce [12]byte
+       var ad [13]byte
+       var ct []byte
+       var out []byte
+
+       aead, _ := New(key[:])
+       ct = aead.Seal(ct[:0], nonce[:], buf[:], ad[:])
+
+       b.ResetTimer()
+       for i := 0; i < b.N; i++ {
+               out, _ = aead.Open(out[:0], nonce[:], ct[:], ad[:])
+       }
+}
+
+func BenchmarkChacha20Poly1305Open_64(b *testing.B) {
+       benchamarkChaCha20Poly1305Open(b, make([]byte, 64))
+}
+
+func BenchmarkChacha20Poly1305Seal_64(b *testing.B) {
+       benchamarkChaCha20Poly1305Seal(b, make([]byte, 64))
+}
+
+func BenchmarkChacha20Poly1305Open_1350(b *testing.B) {
+       benchamarkChaCha20Poly1305Open(b, make([]byte, 1350))
+}
+
+func BenchmarkChacha20Poly1305Seal_1350(b *testing.B) {
+       benchamarkChaCha20Poly1305Seal(b, make([]byte, 1350))
+}
+
+func BenchmarkChacha20Poly1305Open_8K(b *testing.B) {
+       benchamarkChaCha20Poly1305Open(b, make([]byte, 8*1024))
+}
+
+func BenchmarkChacha20Poly1305Seal_8K(b *testing.B) {
+       benchamarkChaCha20Poly1305Seal(b, make([]byte, 8*1024))
+}