--- /dev/null
+/* crypto/engine/hw_cluster_labs.c */
+/*
+ * Written by Jan Tschirschwitz (jan.tschirschwitz@cluster-labs.com for the
+ * OpenSSL project 2000.
+ */
+/* ====================================================================
+ * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#define MSC_VER /* only used cryptic.h */
+
+#include <stdio.h>
+#include <openssl/crypto.h>
+#include <openssl/dso.h>
+#include <openssl/des.h>
+#include <openssl/engine.h>
+
+#ifndef NO_HW
+# ifndef NO_HW_CLUSTER_LABS
+
+# ifdef FLAT_INC
+# include "cluster_labs.h"
+# else
+# include "vendor_defns/cluster_labs.h"
+# endif
+
+# define CL_LIB_NAME "cluster_labs engine"
+# include "hw_cluster_labs_err.c"
+
+static int cluster_labs_destroy(ENGINE *e);
+static int cluster_labs_init(ENGINE *e);
+static int cluster_labs_finish(ENGINE *e);
+static int cluster_labs_ctrl(ENGINE *e, int cmd, long i, void *p,
+ void (*f) ());
+
+/* BIGNUM stuff */
+/* This function is aliased to mod_exp (with the mont stuff dropped). */
+static int cluster_labs_mod_exp_mont(BIGNUM *r, const BIGNUM *a,
+ const BIGNUM *p, const BIGNUM *m,
+ BN_CTX *ctx, BN_MONT_CTX *m_ctx);
+
+/* RSA stuff */
+# ifndef OPENSSL_NO_RSA
+static int cluster_labs_rsa_pub_enc(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding);
+static int cluster_labs_rsa_pub_dec(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding);
+static int cluster_labs_rsa_priv_enc(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa,
+ int padding);
+static int cluster_labs_rsa_priv_dec(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa,
+ int padding);
+static int cluster_labs_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa);
+# endif
+
+/* DSA stuff */
+# ifndef OPENSSL_NO_DSA
+static DSA_SIG *cluster_labs_dsa_sign(const unsigned char *dgst, int dlen,
+ DSA *dsa);
+static int cluster_labs_dsa_verify(const unsigned char *dgst, int dgst_len,
+ DSA_SIG *sig, DSA *dsa);
+static int cluster_labs_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
+ BIGNUM *p1, BIGNUM *a2, BIGNUM *p2,
+ BIGNUM *m, BN_CTX *ctx,
+ BN_MONT_CTX *in_mont);
+static int cluster_labs_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
+ const BIGNUM *p, const BIGNUM *m,
+ BN_CTX *ctx, BN_MONT_CTX *m_ctx);
+# endif
+
+/* DH stuff */
+# ifndef OPENSSL_NO_DH
+/* This function is alised to mod_exp (with the DH and mont dropped). */
+static int cluster_labs_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
+ const BIGNUM *p, const BIGNUM *m,
+ BN_CTX *ctx, BN_MONT_CTX *m_ctx);
+# endif
+
+/* RANDOM stuff */
+static int cluster_labs_rand_bytes(unsigned char *buf, int num);
+
+/* The definitions for control commands specific to this engine */
+# define CLUSTER_LABS_CMD_SO_PATH ENGINE_CMD_BASE
+static const ENGINE_CMD_DEFN cluster_labs_cmd_defns[] = {
+ {CLUSTER_LABS_CMD_SO_PATH,
+ "SO_PATH",
+ "Specifies the path to the 'cluster labs' shared library",
+ ENGINE_CMD_FLAG_STRING},
+ {0, NULL, NULL, 0}
+};
+
+/* Our internal RSA_METHOD that we provide pointers to */
+# ifndef OPENSSL_NO_RSA
+static RSA_METHOD cluster_labs_rsa = {
+ "Cluster Labs RSA method",
+ cluster_labs_rsa_pub_enc, /* rsa_pub_enc */
+ cluster_labs_rsa_pub_dec, /* rsa_pub_dec */
+ cluster_labs_rsa_priv_enc, /* rsa_priv_enc */
+ cluster_labs_rsa_priv_dec, /* rsa_priv_dec */
+ cluster_labs_rsa_mod_exp, /* rsa_mod_exp */
+ cluster_labs_mod_exp_mont, /* bn_mod_exp */
+ NULL, /* init */
+ NULL, /* finish */
+ 0, /* flags */
+ NULL, /* apps_data */
+ NULL, /* rsa_sign */
+ NULL /* rsa_verify */
+};
+# endif
+
+/* Our internal DSA_METHOD that we provide pointers to */
+# ifndef OPENSSL_NO_DSA
+static DSA_METHOD cluster_labs_dsa = {
+ "Cluster Labs DSA method",
+ cluster_labs_dsa_sign, /* dsa_do_sign */
+ NULL, /* dsa_sign_setup */
+ cluster_labs_dsa_verify, /* dsa_do_verify */
+ cluster_labs_dsa_mod_exp, /* dsa_mod_exp */
+ cluster_labs_mod_exp_dsa, /* bn_mod_exp */
+ NULL, /* init */
+ NULL, /* finish */
+ 0, /* flags */
+ NULL /* app_data */
+};
+# endif
+
+/* Our internal DH_METHOD that we provide pointers to */
+# ifndef OPENSSL_NO_DH
+static DH_METHOD cluster_labs_dh = {
+ "Cluster Labs DH method",
+ NULL, /* generate key */
+ NULL, /* compute key */
+ cluster_labs_mod_exp_dh, /* bn_mod_exp */
+ NULL, /* init */
+ NULL, /* finish */
+ 0, /* flags */
+ NULL /* app_data */
+};
+# endif
+
+static RAND_METHOD cluster_labs_rand = {
+ /* "Cluster Labs RAND method", */
+ NULL, /* seed */
+ cluster_labs_rand_bytes, /* bytes */
+ NULL, /* cleanup */
+ NULL, /* add */
+ cluster_labs_rand_bytes, /* pseudorand */
+ NULL, /* status */
+};
+
+static const char *engine_cluster_labs_id = "cluster_labs";
+static const char *engine_cluster_labs_name =
+ "Cluster Labs hardware engine support";
+
+/* engine implementation */
+/* ---------------------*/
+static int bind_helper(ENGINE *e)
+{
+
+ if (!ENGINE_set_id(e, engine_cluster_labs_id) ||
+ !ENGINE_set_name(e, engine_cluster_labs_name) ||
+# ifndef OPENSSL_NO_RSA
+ !ENGINE_set_RSA(e, &cluster_labs_rsa) ||
+# endif
+# ifndef OPENSSL_NO_DSA
+ !ENGINE_set_DSA(e, &cluster_labs_dsa) ||
+# endif
+# ifndef OPENSSL_NO_DH
+ !ENGINE_set_DH(e, &cluster_labs_dh) ||
+# endif
+ !ENGINE_set_RAND(e, &cluster_labs_rand) ||
+ !ENGINE_set_destroy_function(e, cluster_labs_destroy) ||
+ !ENGINE_set_init_function(e, cluster_labs_init) ||
+ !ENGINE_set_finish_function(e, cluster_labs_finish) ||
+ !ENGINE_set_ctrl_function(e, cluster_labs_ctrl) ||
+ !ENGINE_set_cmd_defns(e, cluster_labs_cmd_defns))
+ return 0;
+ /* Ensure the error handling is set up */
+ ERR_load_CL_strings();
+ return 1;
+}
+
+# ifndef ENGINE_DYNAMIC_SUPPORT
+static ENGINE *engine_cluster_labs(void)
+{
+ ENGINE *ret = ENGINE_new();
+
+ if (!ret)
+ return NULL;
+ if (!bind_helper(ret)) {
+ ENGINE_free(ret);
+ return NULL;
+ }
+ return ret;
+}
+
+# ifdef ENGINE_DYNAMIC_SUPPORT
+static
+# endif
+void ENGINE_load_cluster_labs(void)
+{
+
+ ENGINE *cluster_labs = engine_cluster_labs();
+
+ if (!cluster_labs)
+ return;
+ ENGINE_add(cluster_labs);
+ ENGINE_free(cluster_labs);
+ ERR_clear_error();
+}
+# endif /* !ENGINE_DYNAMIC_SUPPORT */
+
+static int cluster_labs_destroy(ENGINE *e)
+{
+
+ ERR_unload_CL_strings();
+ return 1;
+}
+
+/*
+ * This is a process-global DSO handle used for loading and unloading the
+ * Cluster Labs library. NB: This is only set (or unset) during an init() or
+ * finish() call (reference counts permitting) and they're operating with
+ * global locks, so this should be thread-safe implicitly.
+ */
+static DSO *cluster_labs_dso = NULL;
+
+/*
+ * These are the function pointers that are (un)set when the library has
+ * successfully (un)loaded.
+ */
+static cl_engine_init *p_cl_engine_init = NULL;
+static cl_mod_exp *p_cl_mod_exp = NULL;
+static cl_mod_exp_crt *p_cl_mod_exp_crt = NULL;
+static cl_rsa_mod_exp *p_cl_rsa_mod_exp = NULL;
+static cl_rsa_priv_enc *p_cl_rsa_priv_enc = NULL;
+static cl_rsa_priv_dec *p_cl_rsa_priv_dec = NULL;
+static cl_rsa_pub_enc *p_cl_rsa_pub_enc = NULL;
+static cl_rsa_pub_dec *p_cl_rsa_pub_dec = NULL;
+static cl_rand_bytes *p_cl_rand_bytes = NULL;
+static cl_dsa_sign *p_cl_dsa_sign = NULL;
+static cl_dsa_verify *p_cl_dsa_verify = NULL;
+
+int cluster_labs_init(ENGINE *e)
+{
+
+ cl_engine_init *p1;
+ cl_mod_exp *p2;
+ cl_mod_exp_crt *p3;
+ cl_rsa_mod_exp *p4;
+ cl_rsa_priv_enc *p5;
+ cl_rsa_priv_dec *p6;
+ cl_rsa_pub_enc *p7;
+ cl_rsa_pub_dec *p8;
+ cl_rand_bytes *p20;
+ cl_dsa_sign *p30;
+ cl_dsa_verify *p31;
+
+ /* engine already loaded */
+ if (cluster_labs_dso != NULL) {
+ CLerr(CL_F_CLUSTER_LABS_INIT, CL_R_ALREADY_LOADED);
+ goto err;
+ }
+ /* try to load engine */
+ cluster_labs_dso = DSO_load(NULL, CLUSTER_LABS_LIB_NAME, NULL, 0);
+ if (cluster_labs_dso == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_INIT, CL_R_DSO_FAILURE);
+ goto err;
+ }
+ /* bind functions */
+ if (!
+ (p1 =
+ (cl_engine_init *) DSO_bind_func(cluster_labs_dso, CLUSTER_LABS_F1))
+|| !(p2 = (cl_mod_exp *) DSO_bind_func(cluster_labs_dso, CLUSTER_LABS_F2))
+|| !(p3 = (cl_mod_exp_crt *) DSO_bind_func(cluster_labs_dso, CLUSTER_LABS_F3))
+|| !(p4 = (cl_rsa_mod_exp *) DSO_bind_func(cluster_labs_dso, CLUSTER_LABS_F4))
+|| !(p5 =
+ (cl_rsa_priv_enc *) DSO_bind_func(cluster_labs_dso, CLUSTER_LABS_F5))
+|| !(p6 =
+ (cl_rsa_priv_dec *) DSO_bind_func(cluster_labs_dso, CLUSTER_LABS_F6))
+|| !(p7 = (cl_rsa_pub_enc *) DSO_bind_func(cluster_labs_dso, CLUSTER_LABS_F7))
+|| !(p8 = (cl_rsa_pub_dec *) DSO_bind_func(cluster_labs_dso, CLUSTER_LABS_F8))
+|| !(p20 =
+ (cl_rand_bytes *) DSO_bind_func(cluster_labs_dso, CLUSTER_LABS_F20))
+|| !(p30 = (cl_dsa_sign *) DSO_bind_func(cluster_labs_dso, CLUSTER_LABS_F30))
+|| !(p31 =
+ (cl_dsa_verify *) DSO_bind_func(cluster_labs_dso, CLUSTER_LABS_F31))) {
+ CLerr(CL_F_CLUSTER_LABS_INIT, CL_R_DSO_FAILURE);
+ goto err;
+ }
+
+ /* copy function pointers */
+ p_cl_engine_init = p1;
+ p_cl_mod_exp = p2;
+ p_cl_mod_exp_crt = p3;
+ p_cl_rsa_mod_exp = p4;
+ p_cl_rsa_priv_enc = p5;
+ p_cl_rsa_priv_dec = p6;
+ p_cl_rsa_pub_enc = p7;
+ p_cl_rsa_pub_dec = p8;
+ p_cl_rand_bytes = p20;
+ p_cl_dsa_sign = p30;
+ p_cl_dsa_verify = p31;
+
+ /* cluster labs engine init */
+ if (p_cl_engine_init() == 0) {
+ CLerr(CL_F_CLUSTER_LABS_INIT, CL_R_INIT_FAILED);
+ goto err;
+ }
+
+ return (1);
+
+ err:
+ /* reset all pointers */
+ if (cluster_labs_dso)
+ DSO_free(cluster_labs_dso);
+
+ cluster_labs_dso = NULL;
+ p_cl_engine_init = NULL;
+ p_cl_mod_exp = NULL;
+ p_cl_mod_exp_crt = NULL;
+ p_cl_rsa_mod_exp = NULL;
+ p_cl_rsa_priv_enc = NULL;
+ p_cl_rsa_priv_dec = NULL;
+ p_cl_rsa_pub_enc = NULL;
+ p_cl_rsa_pub_dec = NULL;
+ p_cl_rand_bytes = NULL;
+ p_cl_dsa_sign = NULL;
+ p_cl_dsa_verify = NULL;
+
+ return (0);
+}
+
+static int cluster_labs_finish(ENGINE *e)
+{
+
+ if (cluster_labs_dso == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_FINISH, CL_R_NOT_LOADED);
+ return 0;
+ }
+ if (!DSO_free(cluster_labs_dso)) {
+ CLerr(CL_F_CLUSTER_LABS_FINISH, CL_R_DSO_FAILURE);
+ return 0;
+ }
+
+ cluster_labs_dso = NULL;
+ p_cl_engine_init = NULL;
+ p_cl_mod_exp = NULL;
+ p_cl_rsa_mod_exp = NULL;
+ p_cl_mod_exp_crt = NULL;
+ p_cl_rsa_priv_enc = NULL;
+ p_cl_rsa_priv_dec = NULL;
+ p_cl_rsa_pub_enc = NULL;
+ p_cl_rsa_pub_dec = NULL;
+ p_cl_rand_bytes = NULL;
+ p_cl_dsa_sign = NULL;
+ p_cl_dsa_verify = NULL;
+
+ return (1);
+
+}
+
+static int cluster_labs_ctrl(ENGINE *e, int cmd, long i, void *p,
+ void (*f) ())
+{
+ int initialised = ((cluster_labs_dso == NULL) ? 0 : 1);
+
+ switch (cmd) {
+ case CLUSTER_LABS_CMD_SO_PATH:
+ if (p == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_CTRL, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+ if (initialised) {
+ CLerr(CL_F_CLUSTER_LABS_CTRL, CL_R_ALREADY_LOADED);
+ return 0;
+ }
+ CLUSTER_LABS_LIB_NAME = (const char *)p;
+ return 1;
+ default:
+ break;
+ }
+ CLerr(CL_F_CLUSTER_LABS_CTRL, CL_R_COMMAND_NOT_IMPLEMENTED);
+ return 0;
+}
+
+static int cluster_labs_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx)
+{
+
+ if (cluster_labs_dso == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_MOD_EXP, CL_R_NOT_LOADED);
+ return 0;
+ }
+ if (p_cl_mod_exp == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_MOD_EXP, CL_R_FUNCTION_NOT_BINDED);
+ return 0;
+ }
+
+ return p_cl_mod_exp(r, a, p, m, ctx);
+
+}
+
+static int cluster_labs_mod_exp_crt(BIGNUM *r, BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *q, const BIGNUM *dmp1,
+ const BIGNUM *dmq1, const BIGNUM *iqmp,
+ BN_CTX *ctx)
+{
+
+ if (cluster_labs_dso == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_MOD_EXP_CRT, CL_R_NOT_LOADED);
+ return 0;
+ }
+ if (p_cl_mod_exp_crt == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_MOD_EXP_CRT, CL_R_FUNCTION_NOT_BINDED);
+ return 0;
+ }
+
+ return p_cl_mod_exp_crt(r, a, p, q, dmp1, dmq1, iqmp, ctx);
+
+}
+
+static int cluster_labs_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa)
+{
+
+ if (cluster_labs_dso == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_RSA_MOD_EXP, CL_R_NOT_LOADED);
+ return 0;
+ }
+ if (p_cl_rsa_mod_exp == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_RSA_MOD_EXP, CL_R_FUNCTION_NOT_BINDED);
+ return 0;
+ }
+
+ return p_cl_rsa_mod_exp(r0, I, rsa);
+
+}
+
+static DSA_SIG *cluster_labs_dsa_sign(const unsigned char *dgst, int dlen,
+ DSA *dsa)
+{
+
+ if (cluster_labs_dso == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_DSA_SIGN, CL_R_NOT_LOADED);
+ return 0;
+ }
+ if (p_cl_dsa_sign == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_DSA_SIGN, CL_R_FUNCTION_NOT_BINDED);
+ return 0;
+ }
+
+ return p_cl_dsa_sign(dgst, dlen, dsa);
+
+}
+
+static int cluster_labs_dsa_verify(const unsigned char *dgst, int dgst_len,
+ DSA_SIG *sig, DSA *dsa)
+{
+
+ if (cluster_labs_dso == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_DSA_VERIFY, CL_R_NOT_LOADED);
+ return 0;
+ }
+
+ if (p_cl_dsa_verify == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_DSA_VERIFY, CL_R_FUNCTION_NOT_BINDED);
+ return 0;
+ }
+
+ return p_cl_dsa_verify(dgst, dgst_len, sig, dsa);
+
+}
+
+static int cluster_labs_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
+ BIGNUM *p1, BIGNUM *a2, BIGNUM *p2,
+ BIGNUM *m, BN_CTX *ctx,
+ BN_MONT_CTX *in_mont)
+{
+ BIGNUM t;
+ int status = 0;
+
+ BN_init(&t);
+ /* let rr = a1 ^ p1 mod m */
+ if (!cluster_labs_mod_exp(rr, a1, p1, m, ctx))
+ goto end;
+ /* let t = a2 ^ p2 mod m */
+ if (!cluster_labs_mod_exp(&t, a2, p2, m, ctx))
+ goto end;
+ /* let rr = rr * t mod m */
+ if (!BN_mod_mul(rr, rr, &t, m, ctx))
+ goto end;
+ status = 1;
+ end:
+ BN_free(&t);
+
+ return (1);
+
+}
+
+static int cluster_labs_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
+ const BIGNUM *p, const BIGNUM *m,
+ BN_CTX *ctx, BN_MONT_CTX *m_ctx)
+{
+ return cluster_labs_mod_exp(r, a, p, m, ctx);
+}
+
+/* This function is aliased to mod_exp (with the mont stuff dropped). */
+static int cluster_labs_mod_exp_mont(BIGNUM *r, const BIGNUM *a,
+ const BIGNUM *p, const BIGNUM *m,
+ BN_CTX *ctx, BN_MONT_CTX *m_ctx)
+{
+ return cluster_labs_mod_exp(r, a, p, m, ctx);
+}
+
+/* This function is aliased to mod_exp (with the dh and mont dropped). */
+static int cluster_labs_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
+ const BIGNUM *p, const BIGNUM *m,
+ BN_CTX *ctx, BN_MONT_CTX *m_ctx)
+{
+ return cluster_labs_mod_exp(r, a, p, m, ctx);
+}
+
+static int cluster_labs_rsa_pub_enc(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding)
+{
+
+ if (cluster_labs_dso == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_RSA_PUB_ENC, CL_R_NOT_LOADED);
+ return 0;
+ }
+ if (p_cl_rsa_priv_enc == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_RSA_PUB_ENC, CL_R_FUNCTION_NOT_BINDED);
+ return 0;
+ }
+
+ return p_cl_rsa_pub_enc(flen, from, to, rsa, padding);
+
+}
+
+static int cluster_labs_rsa_pub_dec(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding)
+{
+
+ if (cluster_labs_dso == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_RSA_PUB_DEC, CL_R_NOT_LOADED);
+ return 0;
+ }
+ if (p_cl_rsa_priv_enc == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_RSA_PUB_DEC, CL_R_FUNCTION_NOT_BINDED);
+ return 0;
+ }
+
+ return p_cl_rsa_pub_dec(flen, from, to, rsa, padding);
+
+}
+
+static int cluster_labs_rsa_priv_enc(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding)
+{
+
+ if (cluster_labs_dso == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_RSA_PRIV_ENC, CL_R_NOT_LOADED);
+ return 0;
+ }
+
+ if (p_cl_rsa_priv_enc == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_RSA_PRIV_ENC, CL_R_FUNCTION_NOT_BINDED);
+ return 0;
+ }
+
+ return p_cl_rsa_priv_enc(flen, from, to, rsa, padding);
+
+}
+
+static int cluster_labs_rsa_priv_dec(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding)
+{
+
+ if (cluster_labs_dso == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_RSA_PRIV_DEC, CL_R_NOT_LOADED);
+ return 0;
+ }
+ if (p_cl_rsa_priv_dec == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_RSA_PRIV_DEC, CL_R_FUNCTION_NOT_BINDED);
+ return 0;
+ }
+
+ return p_cl_rsa_priv_dec(flen, from, to, rsa, padding);
+
+}
+
+/************************************************************************************
+* Symmetric algorithms
+************************************************************************************/
+/* this will be come soon! */
+
+/************************************************************************************
+* Random generator
+************************************************************************************/
+
+static int cluster_labs_rand_bytes(unsigned char *buf, int num)
+{
+
+ if (cluster_labs_dso == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_RAND_BYTES, CL_R_NOT_LOADED);
+ return 0;
+ }
+ if (p_cl_mod_exp_crt == NULL) {
+ CLerr(CL_F_CLUSTER_LABS_RAND_BYTES, CL_R_FUNCTION_NOT_BINDED);
+ return 0;
+ }
+
+ return p_cl_rand_bytes(buf, num);
+
+}
+
+/*
+ * This stuff is needed if this ENGINE is being compiled into a
+ * self-contained shared-library.
+ */
+# ifdef ENGINE_DYNAMIC_SUPPORT
+static int bind_fn(ENGINE *e, const char *id)
+{
+ fprintf(stderr, "bind_fn CLUSTER_LABS\n");
+ if (id && (strcmp(id, engine_cluster_labs_id) != 0)) {
+ fprintf(stderr, "bind_fn return(0) first\n");
+ return 0;
+ }
+ if (!bind_helper(e)) {
+ fprintf(stderr, "bind_fn return(1) first\n");
+ return 0;
+ }
+ fprintf(stderr, "bind_fn return(1)\n");
+ return 1;
+}
+
+IMPLEMENT_DYNAMIC_CHECK_FN()
+ IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
+# endif /* ENGINE_DYNAMIC_SUPPORT */
+# endif /* !NO_HW_CLUSTER_LABS */
+#endif /* !NO_HW */
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