+/* crypto/engine/hw_zencod.c */
+ /* Written by Fred Donnat (frederic.donnat@zencod.com) for "zencod"
+ * engine integration in order to redirect crypto computing on a crypto
+ * hardware accelerator zenssl32 ;-)
+ *
+ * Date : 25 jun 2002
+ * Revision : 17 Ju7 2002
+ * Version : zencod_engine-0.9.7
+ */
+
+/* ====================================================================
+ * Copyright (c) 1999-2001 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).
+ *
+ */
+
+
+/* ENGINE general include */
+#include <stdio.h>
+#include <openssl/crypto.h>
+#include <openssl/dso.h>
+#include <openssl/engine.h>
+
+#ifndef OPENSSL_NO_HW
+#ifndef OPENSSL_NO_HW_ZENCOD
+
+#ifdef FLAT_INC
+# include "hw_zencod.h"
+#else
+# include "vendor_defns/hw_zencod.h"
+#endif
+
+#define ZENCOD_LIB_NAME "zencod engine"
+#include "hw_zencod_err.c"
+
+#define FAIL_TO_SOFTWARE -15
+
+#define ZEN_LIBRARY "zenbridge"
+
+#if 0
+# define PERROR(s) perror(s)
+# define CHEESE() fputs("## [ZenEngine] ## " __FUNCTION__ "\n", stderr)
+#else
+# define PERROR(s)
+# define CHEESE()
+#endif
+
+
+/* Sorry ;) */
+#ifndef WIN32
+static inline void esrever ( unsigned char *d, int l )
+{
+ for(;--l>0;--l,d++){*d^=*(d+l);*(d+l)^=*d;*d^=*(d+l);}
+}
+
+static inline void ypcmem ( unsigned char *d, const unsigned char *s, int l )
+{
+ for(d+=l;l--;)*--d=*s++;
+}
+#else
+static __inline void esrever ( unsigned char *d, int l )
+{
+ for(;--l>0;--l,d++){*d^=*(d+l);*(d+l)^=*d;*d^=*(d+l);}
+}
+
+static __inline void ypcmem ( unsigned char *d, const unsigned char *s, int l )
+{
+ for(d+=l;l--;)*--d=*s++;
+}
+#endif
+
+
+#define BIGNUM2ZEN(n, bn) (ptr_zencod_init_number((n), \
+ (unsigned long) ((bn)->top * BN_BITS2), \
+ (unsigned char *) ((bn)->d)))
+
+#define ZEN_BITS(n, bytes) (ptr_zencod_bytes2bits((unsigned char *) (n), (unsigned long) (bytes)))
+#define ZEN_BYTES(bits) (ptr_zencod_bits2bytes((unsigned long) (bits)))
+
+
+/* Function for ENGINE detection and control */
+static int zencod_destroy ( ENGINE *e ) ;
+static int zencod_init ( ENGINE *e ) ;
+static int zencod_finish ( ENGINE *e ) ;
+static int zencod_ctrl ( ENGINE *e, int cmd, long i, void *p, void (*f) () ) ;
+
+/* BIGNUM stuff */
+static int zencod_bn_mod_exp ( BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx ) ;
+
+/* RSA stuff */
+#ifndef OPENSSL_NO_RSA
+static int RSA_zencod_rsa_mod_exp ( BIGNUM *r0, const BIGNUM *I, RSA *rsa ) ;
+static int RSA_zencod_bn_mod_exp ( BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx ) ;
+#endif
+
+/* DSA stuff */
+#ifndef OPENSSL_NO_DSA
+static int DSA_zencod_bn_mod_exp ( DSA *dsa, BIGNUM *r, BIGNUM *a, const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
+ BN_MONT_CTX *m_ctx ) ;
+
+static DSA_SIG *DSA_zencod_do_sign ( const unsigned char *dgst, int dlen, DSA *dsa ) ;
+static int DSA_zencod_do_verify ( const unsigned char *dgst, int dgst_len, DSA_SIG *sig,
+ DSA *dsa ) ;
+#endif
+
+/* DH stuff */
+#ifndef OPENSSL_NO_DH
+static int DH_zencod_bn_mod_exp ( const DH *dh, BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
+ BN_MONT_CTX *m_ctx ) ;
+static int DH_zencod_generate_key ( DH *dh ) ;
+static int DH_zencod_compute_key ( unsigned char *key, const BIGNUM *pub_key, DH *dh ) ;
+#endif
+
+/* Rand stuff */
+static void RAND_zencod_seed ( const void *buf, int num ) ;
+static int RAND_zencod_rand_bytes ( unsigned char *buf, int num ) ;
+static int RAND_zencod_rand_status ( void ) ;
+
+/* Digest Stuff */
+static int engine_digests ( ENGINE *e, const EVP_MD **digest, const int **nids, int nid ) ;
+
+/* Cipher Stuff */
+static int engine_ciphers ( ENGINE *e, const EVP_CIPHER **cipher, const int **nids, int nid ) ;
+
+
+#define ZENCOD_CMD_SO_PATH ENGINE_CMD_BASE
+static const ENGINE_CMD_DEFN zencod_cmd_defns [ ] =
+{
+ { ZENCOD_CMD_SO_PATH,
+ "SO_PATH",
+ "Specifies the path to the 'zenbridge' shared library",
+ ENGINE_CMD_FLAG_STRING},
+ { 0, NULL, NULL, 0 }
+} ;
+
+
+#ifndef OPENSSL_NO_RSA
+/* Our internal RSA_METHOD specific to zencod ENGINE providing pointers to our function */
+static RSA_METHOD zencod_rsa =
+{
+ "ZENCOD RSA method",
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ RSA_zencod_rsa_mod_exp,
+ RSA_zencod_bn_mod_exp,
+ NULL,
+ NULL,
+ 0,
+ NULL,
+ NULL,
+ NULL
+} ;
+#endif
+
+#ifndef OPENSSL_NO_DSA
+/* Our internal DSA_METHOD specific to zencod ENGINE providing pointers to our function */
+static DSA_METHOD zencod_dsa =
+{
+ "ZENCOD DSA method",
+ DSA_zencod_do_sign,
+ NULL,
+ DSA_zencod_do_verify,
+ NULL,
+ DSA_zencod_bn_mod_exp,
+ NULL,
+ NULL,
+ 0,
+ NULL
+} ;
+#endif
+
+#ifndef OPENSSL_NO_DH
+/* Our internal DH_METHOD specific to zencod ENGINE providing pointers to our function */
+static DH_METHOD zencod_dh =
+{
+ "ZENCOD DH method",
+ DH_zencod_generate_key,
+ DH_zencod_compute_key,
+ DH_zencod_bn_mod_exp,
+ NULL,
+ NULL,
+ 0,
+ NULL
+} ;
+#endif
+
+/* Our internal RAND_meth specific to zencod ZNGINE providing pointers to our function */
+static RAND_METHOD zencod_rand =
+{
+ RAND_zencod_seed,
+ RAND_zencod_rand_bytes,
+ NULL,
+ NULL,
+ RAND_zencod_rand_bytes,
+ RAND_zencod_rand_status
+} ;
+
+
+/* Constants used when creating the ENGINE */
+static const char *engine_zencod_id = "zencod";
+static const char *engine_zencod_name = "ZENCOD hardware engine support";
+
+
+/* This internal function is used by ENGINE_zencod () and possibly by the
+ * "dynamic" ENGINE support too ;-)
+ */
+static int bind_helper ( ENGINE *e )
+{
+
+#ifndef OPENSSL_NO_RSA
+ const RSA_METHOD *meth_rsa ;
+#endif
+#ifndef OPENSSL_NO_DSA
+ const DSA_METHOD *meth_dsa ;
+#endif
+#ifndef OPENSSL_NO_DH
+ const DH_METHOD *meth_dh ;
+#endif
+
+ const RAND_METHOD *meth_rand ;
+
+
+ if ( !ENGINE_set_id ( e, engine_zencod_id ) ||
+ !ENGINE_set_name ( e, engine_zencod_name ) ||
+#ifndef OPENSSL_NO_RSA
+ !ENGINE_set_RSA ( e, &zencod_rsa ) ||
+#endif
+#ifndef OPENSSL_NO_DSA
+ !ENGINE_set_DSA ( e, &zencod_dsa ) ||
+#endif
+#ifndef OPENSSL_NO_DH
+ !ENGINE_set_DH ( e, &zencod_dh ) ||
+#endif
+ !ENGINE_set_RAND ( e, &zencod_rand ) ||
+
+ !ENGINE_set_destroy_function ( e, zencod_destroy ) ||
+ !ENGINE_set_init_function ( e, zencod_init ) ||
+ !ENGINE_set_finish_function ( e, zencod_finish ) ||
+ !ENGINE_set_ctrl_function ( e, zencod_ctrl ) ||
+ !ENGINE_set_cmd_defns ( e, zencod_cmd_defns ) ||
+ !ENGINE_set_digests ( e, engine_digests ) ||
+ !ENGINE_set_ciphers ( e, engine_ciphers ) ) {
+ return 0 ;
+ }
+
+#ifndef OPENSSL_NO_RSA
+ /* We know that the "PKCS1_SSLeay()" functions hook properly
+ * to the Zencod-specific mod_exp and mod_exp_crt so we use
+ * those functions. NB: We don't use ENGINE_openssl() or
+ * anything "more generic" because something like the RSAref
+ * code may not hook properly, and if you own one of these
+ * cards then you have the right to do RSA operations on it
+ * anyway!
+ */
+ meth_rsa = RSA_PKCS1_SSLeay () ;
+
+ zencod_rsa.rsa_pub_enc = meth_rsa->rsa_pub_enc ;
+ zencod_rsa.rsa_pub_dec = meth_rsa->rsa_pub_dec ;
+ zencod_rsa.rsa_priv_enc = meth_rsa->rsa_priv_enc ;
+ zencod_rsa.rsa_priv_dec = meth_rsa->rsa_priv_dec ;
+ /* meth_rsa->rsa_mod_exp */
+ /* meth_rsa->bn_mod_exp */
+ zencod_rsa.init = meth_rsa->init ;
+ zencod_rsa.finish = meth_rsa->finish ;
+#endif
+
+#ifndef OPENSSL_NO_DSA
+ /* We use OpenSSL meth to supply what we don't provide ;-*)
+ */
+ meth_dsa = DSA_OpenSSL () ;
+
+ /* meth_dsa->dsa_do_sign */
+ zencod_dsa.dsa_sign_setup = meth_dsa->dsa_sign_setup ;
+ /* meth_dsa->dsa_do_verify */
+ zencod_dsa.dsa_mod_exp = meth_dsa->dsa_mod_exp ;
+ /* zencod_dsa.bn_mod_exp = meth_dsa->bn_mod_exp ; */
+ zencod_dsa.init = meth_dsa->init ;
+ zencod_dsa.finish = meth_dsa->finish ;
+#endif
+
+#ifndef OPENSSL_NO_DH
+ /* We use OpenSSL meth to supply what we don't provide ;-*)
+ */
+ meth_dh = DH_OpenSSL () ;
+
+ /* zencod_dh.generate_key = meth_dh->generate_key ; */
+ /* zencod_dh.compute_key = meth_dh->compute_key ; */
+ /* zencod_dh.bn_mod_exp = meth_dh->bn_mod_exp ; */
+ zencod_dh.init = meth_dh->init ;
+ zencod_dh.finish = meth_dh->finish ;
+
+#endif
+
+ /* We use OpenSSL (SSLeay) meth to supply what we don't provide ;-*)
+ */
+ meth_rand = RAND_SSLeay () ;
+
+ /* meth_rand->seed ; */
+ /* zencod_rand.seed = meth_rand->seed ; */
+ /* meth_rand->bytes ; */
+ /* zencod_rand.bytes = meth_rand->bytes ; */
+ zencod_rand.cleanup = meth_rand->cleanup ;
+ zencod_rand.add = meth_rand->add ;
+ /* meth_rand->pseudorand ; */
+ /* zencod_rand.pseudorand = meth_rand->pseudorand ; */
+ /* zencod_rand.status = meth_rand->status ; */
+ /* meth_rand->status ; */
+
+ /* Ensure the zencod error handling is set up */
+ ERR_load_ZENCOD_strings () ;
+ return 1 ;
+}
+
+
+/* As this is only ever called once, there's no need for locking
+ * (indeed - the lock will already be held by our caller!!!)
+ */
+ENGINE *ENGINE_zencod ( void )
+{
+
+ ENGINE *eng = ENGINE_new () ;
+
+ if ( !eng ) {
+ return NULL ;
+ }
+ if ( !bind_helper ( eng ) ) {
+ ENGINE_free ( eng ) ;
+ return NULL ;
+ }
+
+ return eng ;
+}
+
+
+void ENGINE_load_zencod ( void )
+{
+ /* Copied from eng_[openssl|dyn].c */
+ ENGINE *toadd = ENGINE_zencod ( ) ;
+ if ( !toadd ) return ;
+ ENGINE_add ( toadd ) ;
+ ENGINE_free ( toadd ) ;
+ ERR_clear_error ( ) ;
+}
+
+
+/* This is a process-global DSO handle used for loading and unloading
+ * the ZENBRIDGE 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 *zencod_dso = NULL ;
+
+static t_zencod_test *ptr_zencod_test = NULL ;
+static t_zencod_bytes2bits *ptr_zencod_bytes2bits = NULL ;
+static t_zencod_bits2bytes *ptr_zencod_bits2bytes = NULL ;
+static t_zencod_new_number *ptr_zencod_new_number = NULL ;
+static t_zencod_init_number *ptr_zencod_init_number = NULL ;
+
+static t_zencod_rsa_mod_exp *ptr_zencod_rsa_mod_exp = NULL ;
+static t_zencod_rsa_mod_exp_crt *ptr_zencod_rsa_mod_exp_crt = NULL ;
+static t_zencod_dsa_do_sign *ptr_zencod_dsa_do_sign = NULL ;
+static t_zencod_dsa_do_verify *ptr_zencod_dsa_do_verify = NULL ;
+static t_zencod_dh_generate_key *ptr_zencod_dh_generate_key = NULL ;
+static t_zencod_dh_compute_key *ptr_zencod_dh_compute_key = NULL ;
+static t_zencod_rand_bytes *ptr_zencod_rand_bytes = NULL ;
+static t_zencod_math_mod_exp *ptr_zencod_math_mod_exp = NULL ;
+
+static t_zencod_md5_init *ptr_zencod_md5_init = NULL ;
+static t_zencod_md5_update *ptr_zencod_md5_update = NULL ;
+static t_zencod_md5_do_final *ptr_zencod_md5_do_final = NULL ;
+static t_zencod_sha1_init *ptr_zencod_sha1_init = NULL ;
+static t_zencod_sha1_update *ptr_zencod_sha1_update = NULL ;
+static t_zencod_sha1_do_final *ptr_zencod_sha1_do_final = NULL ;
+
+static t_zencod_xdes_cipher *ptr_zencod_xdes_cipher = NULL ;
+static t_zencod_rc4_cipher *ptr_zencod_rc4_cipher = NULL ;
+
+/* These are the static string constants for the DSO file name and the function
+ * symbol names to bind to.
+ */
+static const char *ZENCOD_LIBNAME = ZEN_LIBRARY ;
+
+static const char *ZENCOD_Fct_0 = "test_device" ;
+static const char *ZENCOD_Fct_1 = "zenbridge_bytes2bits" ;
+static const char *ZENCOD_Fct_2 = "zenbridge_bits2bytes" ;
+static const char *ZENCOD_Fct_3 = "zenbridge_new_number" ;
+static const char *ZENCOD_Fct_4 = "zenbridge_init_number" ;
+
+static const char *ZENCOD_Fct_exp_1 = "zenbridge_rsa_mod_exp" ;
+static const char *ZENCOD_Fct_exp_2 = "zenbridge_rsa_mod_exp_crt" ;
+static const char *ZENCOD_Fct_dsa_1 = "zenbridge_dsa_do_sign" ;
+static const char *ZENCOD_Fct_dsa_2 = "zenbridge_dsa_do_verify" ;
+static const char *ZENCOD_Fct_dh_1 = "zenbridge_dh_generate_key" ;
+static const char *ZENCOD_Fct_dh_2 = "zenbridge_dh_compute_key" ;
+static const char *ZENCOD_Fct_rand_1 = "zenbridge_rand_bytes" ;
+static const char *ZENCOD_Fct_math_1 = "zenbridge_math_mod_exp" ;
+
+static const char *ZENCOD_Fct_md5_1 = "zenbridge_md5_init" ;
+static const char *ZENCOD_Fct_md5_2 = "zenbridge_md5_update" ;
+static const char *ZENCOD_Fct_md5_3 = "zenbridge_md5_do_final" ;
+static const char *ZENCOD_Fct_sha1_1 = "zenbridge_sha1_init" ;
+static const char *ZENCOD_Fct_sha1_2 = "zenbridge_sha1_update" ;
+static const char *ZENCOD_Fct_sha1_3 = "zenbridge_sha1_do_final" ;
+
+static const char *ZENCOD_Fct_xdes_1 = "zenbridge_xdes_cipher" ;
+static const char *ZENCOD_Fct_rc4_1 = "zenbridge_rc4_cipher" ;
+
+/* Destructor (complements the "ENGINE_zencod ()" constructor)
+ */
+static int zencod_destroy (ENGINE *e )
+{
+
+ ERR_unload_ZENCOD_strings () ;
+
+ return 1 ;
+}
+
+
+/* (de)initialisation functions. Control Function
+ */
+static int zencod_init ( ENGINE *e )
+{
+
+ t_zencod_test *ptr_0 ;
+ t_zencod_bytes2bits *ptr_1 ;
+ t_zencod_bits2bytes *ptr_2 ;
+ t_zencod_new_number *ptr_3 ;
+ t_zencod_init_number *ptr_4 ;
+ t_zencod_rsa_mod_exp *ptr_exp_1 ;
+ t_zencod_rsa_mod_exp_crt *ptr_exp_2 ;
+ t_zencod_dsa_do_sign *ptr_dsa_1 ;
+ t_zencod_dsa_do_verify *ptr_dsa_2 ;
+ t_zencod_dh_generate_key *ptr_dh_1 ;
+ t_zencod_dh_compute_key *ptr_dh_2 ;
+ t_zencod_rand_bytes *ptr_rand_1 ;
+ t_zencod_math_mod_exp *ptr_math_1 ;
+ t_zencod_md5_init *ptr_md5_1 ;
+ t_zencod_md5_update *ptr_md5_2 ;
+ t_zencod_md5_do_final *ptr_md5_3 ;
+ t_zencod_sha1_init *ptr_sha1_1 ;
+ t_zencod_sha1_update *ptr_sha1_2 ;
+ t_zencod_sha1_do_final *ptr_sha1_3 ;
+ t_zencod_xdes_cipher *ptr_xdes_1 ;
+ t_zencod_rc4_cipher *ptr_rc4_1 ;
+
+ CHEESE () ;
+
+ /*
+ * We Should add some tests for non NULL parameters or bad value !!
+ * Stuff to be done ...
+ */
+
+ if ( zencod_dso != NULL ) {
+ ZENCODerr ( ZENCOD_F_ZENCOD_INIT, ZENCOD_R_ALREADY_LOADED ) ;
+ goto err ;
+ }
+ /* Trying to load the Library "cryptozen"
+ */
+ zencod_dso = DSO_load ( NULL, ZENCOD_LIBNAME, NULL, 0 ) ;
+ if ( zencod_dso == NULL ) {
+ ZENCODerr ( ZENCOD_F_ZENCOD_INIT, ZENCOD_R_DSO_FAILURE ) ;
+ goto err ;
+ }
+
+ /* Trying to load Function from the Library
+ */
+ if ( ! ( ptr_1 = (t_zencod_bytes2bits*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_1 ) ) ||
+ ! ( ptr_2 = (t_zencod_bits2bytes*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_2 ) ) ||
+ ! ( ptr_3 = (t_zencod_new_number*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_3 ) ) ||
+ ! ( ptr_4 = (t_zencod_init_number*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_4 ) ) ||
+ ! ( ptr_exp_1 = (t_zencod_rsa_mod_exp*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_exp_1 ) ) ||
+ ! ( ptr_exp_2 = (t_zencod_rsa_mod_exp_crt*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_exp_2 ) ) ||
+ ! ( ptr_dsa_1 = (t_zencod_dsa_do_sign*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_dsa_1 ) ) ||
+ ! ( ptr_dsa_2 = (t_zencod_dsa_do_verify*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_dsa_2 ) ) ||
+ ! ( ptr_dh_1 = (t_zencod_dh_generate_key*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_dh_1 ) ) ||
+ ! ( ptr_dh_2 = (t_zencod_dh_compute_key*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_dh_2 ) ) ||
+ ! ( ptr_rand_1 = (t_zencod_rand_bytes*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_rand_1 ) ) ||
+ ! ( ptr_math_1 = (t_zencod_math_mod_exp*) DSO_bind_func ( zencod_dso, ZENCOD_Fct_math_1 ) ) ||
+ ! ( ptr_0 = (t_zencod_test *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_0 ) ) ||
+ ! ( ptr_md5_1 = (t_zencod_md5_init *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_md5_1 ) ) ||
+ ! ( ptr_md5_2 = (t_zencod_md5_update *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_md5_2 ) ) ||
+ ! ( ptr_md5_3 = (t_zencod_md5_do_final *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_md5_3 ) ) ||
+ ! ( ptr_sha1_1 = (t_zencod_sha1_init *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_sha1_1 ) ) ||
+ ! ( ptr_sha1_2 = (t_zencod_sha1_update *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_sha1_2 ) ) ||
+ ! ( ptr_sha1_3 = (t_zencod_sha1_do_final *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_sha1_3 ) ) ||
+ ! ( ptr_xdes_1 = (t_zencod_xdes_cipher *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_xdes_1 ) ) ||
+ ! ( ptr_rc4_1 = (t_zencod_rc4_cipher *) DSO_bind_func ( zencod_dso, ZENCOD_Fct_rc4_1 ) ) ) {
+
+ ZENCODerr ( ZENCOD_F_ZENCOD_INIT, ZENCOD_R_DSO_FAILURE ) ;
+ goto err ;
+ }
+
+ /* The function from "cryptozen" Library have been correctly loaded so copy them
+ */
+ ptr_zencod_test = ptr_0 ;
+ ptr_zencod_bytes2bits = ptr_1 ;
+ ptr_zencod_bits2bytes = ptr_2 ;
+ ptr_zencod_new_number = ptr_3 ;
+ ptr_zencod_init_number = ptr_4 ;
+ ptr_zencod_rsa_mod_exp = ptr_exp_1 ;
+ ptr_zencod_rsa_mod_exp_crt = ptr_exp_2 ;
+ ptr_zencod_dsa_do_sign = ptr_dsa_1 ;
+ ptr_zencod_dsa_do_verify = ptr_dsa_2 ;
+ ptr_zencod_dh_generate_key = ptr_dh_1 ;
+ ptr_zencod_dh_compute_key = ptr_dh_2 ;
+ ptr_zencod_rand_bytes = ptr_rand_1 ;
+ ptr_zencod_math_mod_exp = ptr_math_1 ;
+ ptr_zencod_test = ptr_0 ;
+ ptr_zencod_md5_init = ptr_md5_1 ;
+ ptr_zencod_md5_update = ptr_md5_2 ;
+ ptr_zencod_md5_do_final = ptr_md5_3 ;
+ ptr_zencod_sha1_init = ptr_sha1_1 ;
+ ptr_zencod_sha1_update = ptr_sha1_2 ;
+ ptr_zencod_sha1_do_final = ptr_sha1_3 ;
+ ptr_zencod_xdes_cipher = ptr_xdes_1 ;
+ ptr_zencod_rc4_cipher = ptr_rc4_1 ;
+
+ /* We should peform a test to see if there is actually any unit runnig on the system ...
+ * Even if the cryptozen library is loaded the module coul not be loaded on the system ...
+ * For now we may just open and close the device !!
+ */
+
+ if ( ptr_zencod_test () != 0 ) {
+ ZENCODerr ( ZENCOD_F_ZENCOD_INIT, ZENCOD_R_UNIT_FAILURE ) ;
+ goto err ;
+ }
+
+ return 1 ;
+err :
+ if ( zencod_dso ) {
+ DSO_free ( zencod_dso ) ;
+ }
+ zencod_dso = NULL ;
+ ptr_zencod_bytes2bits = NULL ;
+ ptr_zencod_bits2bytes = NULL ;
+ ptr_zencod_new_number = NULL ;
+ ptr_zencod_init_number = NULL ;
+ ptr_zencod_rsa_mod_exp = NULL ;
+ ptr_zencod_rsa_mod_exp_crt = NULL ;
+ ptr_zencod_dsa_do_sign = NULL ;
+ ptr_zencod_dsa_do_verify = NULL ;
+ ptr_zencod_dh_generate_key = NULL ;
+ ptr_zencod_dh_compute_key = NULL ;
+ ptr_zencod_rand_bytes = NULL ;
+ ptr_zencod_math_mod_exp = NULL ;
+ ptr_zencod_test = NULL ;
+ ptr_zencod_md5_init = NULL ;
+ ptr_zencod_md5_update = NULL ;
+ ptr_zencod_md5_do_final = NULL ;
+ ptr_zencod_sha1_init = NULL ;
+ ptr_zencod_sha1_update = NULL ;
+ ptr_zencod_sha1_do_final = NULL ;
+ ptr_zencod_xdes_cipher = NULL ;
+ ptr_zencod_rc4_cipher = NULL ;
+
+ return 0 ;
+}
+
+
+static int zencod_finish ( ENGINE *e )
+{
+
+ CHEESE () ;
+
+ /*
+ * We Should add some tests for non NULL parameters or bad value !!
+ * Stuff to be done ...
+ */
+ if ( zencod_dso == NULL ) {
+ ZENCODerr ( ZENCOD_F_ZENCOD_FINISH, ZENCOD_R_NOT_LOADED ) ;
+ return 0 ;
+ }
+ if ( !DSO_free ( zencod_dso ) ) {
+ ZENCODerr ( ZENCOD_F_ZENCOD_FINISH, ZENCOD_R_DSO_FAILURE ) ;
+ return 0 ;
+ }
+
+ zencod_dso = NULL ;
+
+ ptr_zencod_bytes2bits = NULL ;
+ ptr_zencod_bits2bytes = NULL ;
+ ptr_zencod_new_number = NULL ;
+ ptr_zencod_init_number = NULL ;
+ ptr_zencod_rsa_mod_exp = NULL ;
+ ptr_zencod_rsa_mod_exp_crt = NULL ;
+ ptr_zencod_dsa_do_sign = NULL ;
+ ptr_zencod_dsa_do_verify = NULL ;
+ ptr_zencod_dh_generate_key = NULL ;
+ ptr_zencod_dh_compute_key = NULL ;
+ ptr_zencod_rand_bytes = NULL ;
+ ptr_zencod_math_mod_exp = NULL ;
+ ptr_zencod_test = NULL ;
+ ptr_zencod_md5_init = NULL ;
+ ptr_zencod_md5_update = NULL ;
+ ptr_zencod_md5_do_final = NULL ;
+ ptr_zencod_sha1_init = NULL ;
+ ptr_zencod_sha1_update = NULL ;
+ ptr_zencod_sha1_do_final = NULL ;
+ ptr_zencod_xdes_cipher = NULL ;
+ ptr_zencod_rc4_cipher = NULL ;
+
+ return 1 ;
+}
+
+
+static int zencod_ctrl ( ENGINE *e, int cmd, long i, void *p, void (*f) () )
+{
+
+ int initialised = ( ( zencod_dso == NULL ) ? 0 : 1 ) ;
+
+ CHEESE () ;
+
+ /*
+ * We Should add some tests for non NULL parameters or bad value !!
+ * Stuff to be done ...
+ */
+ switch ( cmd ) {
+ case ZENCOD_CMD_SO_PATH :
+ if ( p == NULL ) {
+ ZENCODerr ( ZENCOD_F_ZENCOD_CTRL, ERR_R_PASSED_NULL_PARAMETER ) ;
+ return 0 ;
+ }
+ if ( initialised ) {
+ ZENCODerr ( ZENCOD_F_ZENCOD_CTRL, ZENCOD_R_ALREADY_LOADED ) ;
+ return 0 ;
+ }
+ ZENCOD_LIBNAME = (const char *) p ;
+ return 1 ;
+ default :
+ break ;
+ }
+
+ ZENCODerr ( ZENCOD_F_ZENCOD_CTRL, ZENCOD_R_CTRL_COMMAND_NOT_IMPLEMENTED ) ;
+
+ return 0 ;
+}
+
+
+/* BIGNUM stuff Functions
+ */
+static int zencod_bn_mod_exp ( BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx )
+{
+ zen_nb_t y, x, e, n;
+ int ret;
+
+ CHEESE () ;
+
+ if ( !zencod_dso ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_BN_MOD_EXP, ZENCOD_R_NOT_LOADED);
+ return 0;
+ }
+
+ if ( !bn_wexpand(r, m->top + 1) ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_BN_MOD_EXP, ZENCOD_R_BN_EXPAND_FAIL);
+ return 0;
+ }
+
+ memset(r->d, 0, BN_num_bytes(m));
+
+ ptr_zencod_init_number ( &y, (r->dmax - 1) * sizeof (BN_ULONG) * 8, (unsigned char *) r->d ) ;
+ BIGNUM2ZEN ( &x, a ) ;
+ BIGNUM2ZEN ( &e, p ) ;
+ BIGNUM2ZEN ( &n, m ) ;
+
+ /* Must invert x and e parameter due to BN mod exp prototype ... */
+ ret = ptr_zencod_math_mod_exp ( &y, &e, &x, &n ) ;
+
+ if ( ret ) {
+ PERROR("zenbridge_math_mod_exp");
+ ENGINEerr(ZENCOD_F_ZENCOD_BN_MOD_EXP, ZENCOD_R_REQUEST_FAILED);
+ return 0;
+ }
+
+ r->top = (BN_num_bits(m) + BN_BITS2 - 1) / BN_BITS2;
+
+ return 1;
+}
+
+
+/* RSA stuff Functions
+ */
+#ifndef OPENSSL_NO_RSA
+static int RSA_zencod_rsa_mod_exp ( BIGNUM *r0, const BIGNUM *i, RSA *rsa )
+{
+
+ CHEESE () ;
+
+ if ( !zencod_dso ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP_CRT, ZENCOD_R_NOT_LOADED);
+ return 0;
+ }
+
+ if ( !rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP_CRT, ZENCOD_R_BAD_KEY_COMPONENTS);
+ return 0;
+ }
+
+ /* Do in software if argument is too large for hardware */
+ if ( RSA_size(rsa) * 8 > ZENBRIDGE_MAX_KEYSIZE_RSA_CRT ) {
+ const RSA_METHOD *meth;
+
+ meth = RSA_PKCS1_SSLeay();
+ return meth->rsa_mod_exp(r0, i, rsa);
+ } else {
+ zen_nb_t y, x, p, q, dmp1, dmq1, iqmp;
+
+ if ( !bn_expand(r0, RSA_size(rsa) * 8) ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP_CRT, ZENCOD_R_BN_EXPAND_FAIL);
+ return 0;
+ }
+ r0->top = (RSA_size(rsa) * 8 + BN_BITS2 - 1) / BN_BITS2;
+
+ BIGNUM2ZEN ( &x, i ) ;
+ BIGNUM2ZEN ( &y, r0 ) ;
+ BIGNUM2ZEN ( &p, rsa->p ) ;
+ BIGNUM2ZEN ( &q, rsa->q ) ;
+ BIGNUM2ZEN ( &dmp1, rsa->dmp1 ) ;
+ BIGNUM2ZEN ( &dmq1, rsa->dmq1 ) ;
+ BIGNUM2ZEN ( &iqmp, rsa->iqmp ) ;
+
+ if ( ptr_zencod_rsa_mod_exp_crt ( &y, &x, &p, &q, &dmp1, &dmq1, &iqmp ) < 0 ) {
+ PERROR("zenbridge_rsa_mod_exp_crt");
+ ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP_CRT, ZENCOD_R_REQUEST_FAILED);
+ return 0;
+ }
+
+ return 1;
+ }
+}
+
+
+/* This function is aliased to RSA_mod_exp (with the mont stuff dropped).
+ */
+static int RSA_zencod_bn_mod_exp ( BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx )
+{
+
+ CHEESE () ;
+
+ if ( !zencod_dso ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP, ZENCOD_R_NOT_LOADED);
+ return 0;
+ }
+
+ /* Do in software if argument is too large for hardware */
+ if ( BN_num_bits(m) > ZENBRIDGE_MAX_KEYSIZE_RSA ) {
+ const RSA_METHOD *meth;
+
+ meth = RSA_PKCS1_SSLeay();
+ return meth->bn_mod_exp(r, a, p, m, ctx, m_ctx);
+ } else {
+ zen_nb_t y, x, e, n;
+
+ if ( !bn_expand(r, BN_num_bits(m)) ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP, ZENCOD_R_BN_EXPAND_FAIL);
+ return 0;
+ }
+ r->top = (BN_num_bits(m) + BN_BITS2 - 1) / BN_BITS2;
+
+ BIGNUM2ZEN ( &x, a ) ;
+ BIGNUM2ZEN ( &y, r ) ;
+ BIGNUM2ZEN ( &e, p ) ;
+ BIGNUM2ZEN ( &n, m ) ;
+
+ if ( ptr_zencod_rsa_mod_exp ( &y, &x, &n, &e ) < 0 ) {
+ PERROR("zenbridge_rsa_mod_exp");
+ ENGINEerr(ZENCOD_F_ZENCOD_RSA_MOD_EXP, ZENCOD_R_REQUEST_FAILED);
+ return 0;
+ }
+
+ return 1;
+ }
+}
+#endif /* !OPENSSL_NO_RSA */
+
+
+#ifndef OPENSSL_NO_DSA
+/* DSA stuff Functions
+ */
+static DSA_SIG *DSA_zencod_do_sign ( const unsigned char *dgst, int dlen, DSA *dsa )
+{
+ zen_nb_t p, q, g, x, y, r, s, data;
+ DSA_SIG *sig;
+ BIGNUM *bn_r = NULL;
+ BIGNUM *bn_s = NULL;
+ char msg[20];
+
+ CHEESE();
+
+ if ( !zencod_dso ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_NOT_LOADED);
+ goto FAILED;
+ }
+
+ if ( dlen > 160 ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_REQUEST_FAILED);
+ goto FAILED;
+ }
+
+ /* Do in software if argument is too large for hardware */
+ if ( BN_num_bits(dsa->p) > ZENBRIDGE_MAX_KEYSIZE_DSA_SIGN ||
+ BN_num_bits(dsa->g) > ZENBRIDGE_MAX_KEYSIZE_DSA_SIGN ) {
+ const DSA_METHOD *meth;
+ ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_BAD_KEY_COMPONENTS);
+ meth = DSA_OpenSSL();
+ return meth->dsa_do_sign(dgst, dlen, dsa);
+ }
+
+ if ( !(bn_s = BN_new()) || !(bn_r = BN_new()) ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_BAD_KEY_COMPONENTS);
+ goto FAILED;
+ }
+
+ if ( !bn_expand(bn_r, 160) || !bn_expand(bn_s, 160) ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_BN_EXPAND_FAIL);
+ goto FAILED;
+ }
+
+ bn_r->top = bn_s->top = (160 + BN_BITS2 - 1) / BN_BITS2;
+ BIGNUM2ZEN ( &p, dsa->p ) ;
+ BIGNUM2ZEN ( &q, dsa->q ) ;
+ BIGNUM2ZEN ( &g, dsa->g ) ;
+ BIGNUM2ZEN ( &x, dsa->priv_key ) ;
+ BIGNUM2ZEN ( &y, dsa->pub_key ) ;
+ BIGNUM2ZEN ( &r, bn_r ) ;
+ BIGNUM2ZEN ( &s, bn_s ) ;
+ q.len = x.len = 160;
+
+ ypcmem(msg, dgst, 20);
+ ptr_zencod_init_number ( &data, 160, msg ) ;
+
+ if ( ptr_zencod_dsa_do_sign ( 0, &data, &y, &p, &q, &g, &x, &r, &s ) < 0 ) {
+ PERROR("zenbridge_dsa_do_sign");
+ ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_REQUEST_FAILED);
+ goto FAILED;
+ }
+
+ if ( !( sig = DSA_SIG_new () ) ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_REQUEST_FAILED);
+ goto FAILED;
+ }
+ sig->r = bn_r;
+ sig->s = bn_s;
+ return sig;
+
+ FAILED:
+ if (bn_r)
+ BN_free(bn_r);
+ if (bn_s)
+ BN_free(bn_s);
+ return NULL;
+}
+
+
+static int DSA_zencod_do_verify ( const unsigned char *dgst, int dlen, DSA_SIG *sig, DSA *dsa )
+{
+ zen_nb_t data, p, q, g, y, r, s, v;
+ char msg[20];
+ char v_data[20];
+ int ret;
+
+ CHEESE();
+
+ if ( !zencod_dso ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_VERIFY, ZENCOD_R_NOT_LOADED);
+ return 0;
+ }
+
+ if ( dlen > 160 ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_REQUEST_FAILED);
+ return 0;
+ }
+
+ /* Do in software if argument is too large for hardware */
+ if ( BN_num_bits(dsa->p) > ZENBRIDGE_MAX_KEYSIZE_DSA_SIGN ||
+ BN_num_bits(dsa->g) > ZENBRIDGE_MAX_KEYSIZE_DSA_SIGN ) {
+ const DSA_METHOD *meth;
+ ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_SIGN, ZENCOD_R_BAD_KEY_COMPONENTS);
+ meth = DSA_OpenSSL();
+ return meth->dsa_do_verify(dgst, dlen, sig, dsa);
+ }
+
+ BIGNUM2ZEN ( &p, dsa->p ) ;
+ BIGNUM2ZEN ( &q, dsa->q ) ;
+ BIGNUM2ZEN ( &g, dsa->g ) ;
+ BIGNUM2ZEN ( &y, dsa->pub_key ) ;
+ BIGNUM2ZEN ( &r, sig->r ) ;
+ BIGNUM2ZEN ( &s, sig->s ) ;
+ ptr_zencod_init_number ( &v, 160, v_data ) ;
+ ypcmem(msg, dgst, 20);
+ ptr_zencod_init_number ( &data, 160, msg ) ;
+
+ if ( ( ret = ptr_zencod_dsa_do_verify ( 0, &data, &p, &q, &g, &y, &r, &s, &v ) ) < 0 ) {
+ PERROR("zenbridge_dsa_do_verify");
+ ENGINEerr(ZENCOD_F_ZENCOD_DSA_DO_VERIFY, ZENCOD_R_REQUEST_FAILED);
+ return 0;
+ }
+
+ return ( ( ret == 0 ) ? 1 : ret ) ;
+}
+
+
+static int DSA_zencod_bn_mod_exp ( DSA *dsa, BIGNUM *r, BIGNUM *a, const BIGNUM *p, const BIGNUM *m,
+ BN_CTX *ctx, BN_MONT_CTX *m_ctx )
+{
+ CHEESE () ;
+
+ return zencod_bn_mod_exp ( r, a, p, m, ctx ) ;
+}
+#endif /* !OPENSSL_NO_DSA */
+
+
+#ifndef OPENSSl_NO_DH
+/* DH stuff Functions
+ */
+static int DH_zencod_generate_key ( DH *dh )
+{
+ BIGNUM *bn_prv = NULL;
+ BIGNUM *bn_pub = NULL;
+ zen_nb_t y, x, g, p;
+ int generate_x;
+
+ CHEESE();
+
+ if ( !zencod_dso ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_DH_GENERATE, ZENCOD_R_NOT_LOADED);
+ return 0;
+ }
+
+ /* Private key */
+ if ( dh->priv_key ) {
+ bn_prv = dh->priv_key;
+ generate_x = 0;
+ } else {
+ if (!(bn_prv = BN_new())) {
+ ENGINEerr(ZENCOD_F_ZENCOD_DH_GENERATE, ZENCOD_R_BN_EXPAND_FAIL);
+ goto FAILED;
+ }
+ generate_x = 1;
+ }
+
+ /* Public key */
+ if ( dh->pub_key )
+ bn_pub = dh->pub_key;
+ else
+ if ( !( bn_pub = BN_new () ) ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_DH_GENERATE, ZENCOD_R_BN_EXPAND_FAIL);
+ goto FAILED;
+ }
+
+ /* Expand */
+ if ( !bn_wexpand ( bn_prv, dh->p->dmax ) ||
+ !bn_wexpand ( bn_pub, dh->p->dmax ) ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_DH_GENERATE, ZENCOD_R_BN_EXPAND_FAIL);
+ goto FAILED;
+ }
+ bn_prv->top = dh->p->top;
+ bn_pub->top = dh->p->top;
+
+ /* Convert all keys */
+ BIGNUM2ZEN ( &p, dh->p ) ;
+ BIGNUM2ZEN ( &g, dh->g ) ;
+ BIGNUM2ZEN ( &y, bn_pub ) ;
+ BIGNUM2ZEN ( &x, bn_prv ) ;
+ x.len = DH_size(dh) * 8;
+
+ /* Adjust the lengths of P and G */
+ p.len = ptr_zencod_bytes2bits ( p.data, ZEN_BYTES ( p.len ) ) ;
+ g.len = ptr_zencod_bytes2bits ( g.data, ZEN_BYTES ( g.len ) ) ;
+
+ /* Send the request to the driver */
+ if ( ptr_zencod_dh_generate_key ( &y, &x, &g, &p, generate_x ) < 0 ) {
+ perror("zenbridge_dh_generate_key");
+ ENGINEerr(ZENCOD_F_ZENCOD_DH_GENERATE, ZENCOD_R_REQUEST_FAILED);
+ goto FAILED;
+ }
+
+ dh->priv_key = bn_prv;
+ dh->pub_key = bn_pub;
+
+ return 1;
+
+ FAILED:
+ if (!dh->priv_key && bn_prv)
+ BN_free(bn_prv);
+ if (!dh->pub_key && bn_pub)
+ BN_free(bn_pub);
+
+ return 0;
+}
+
+
+static int DH_zencod_compute_key ( unsigned char *key, const BIGNUM *pub_key, DH *dh )
+{
+ zen_nb_t y, x, p, k;
+
+ CHEESE();
+
+ if ( !zencod_dso ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_DH_COMPUTE, ZENCOD_R_NOT_LOADED);
+ return 0;
+ }
+
+ if ( !dh->priv_key ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_DH_COMPUTE, ZENCOD_R_BAD_KEY_COMPONENTS);
+ return 0;
+ }
+
+ /* Convert all keys */
+ BIGNUM2ZEN ( &y, pub_key ) ;
+ BIGNUM2ZEN ( &x, dh->priv_key ) ;
+ BIGNUM2ZEN ( &p, dh->p ) ;
+ ptr_zencod_init_number ( &k, p.len, key ) ;
+
+ /* Adjust the lengths */
+ p.len = ptr_zencod_bytes2bits ( p.data, ZEN_BYTES ( p.len ) ) ;
+ y.len = ptr_zencod_bytes2bits ( y.data, ZEN_BYTES ( y.len ) ) ;
+ x.len = ptr_zencod_bytes2bits ( x.data, ZEN_BYTES ( x.len ) ) ;
+
+ /* Call the hardware */
+ if ( ptr_zencod_dh_compute_key ( &k, &y, &x, &p ) < 0 ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_DH_COMPUTE, ZENCOD_R_REQUEST_FAILED);
+ return 0;
+ }
+
+ /* The key must be written MSB -> LSB */
+ k.len = ptr_zencod_bytes2bits ( k.data, ZEN_BYTES ( k.len ) ) ;
+ esrever ( key, ZEN_BYTES ( k.len ) ) ;
+
+ return ZEN_BYTES ( k.len ) ;
+}
+
+
+static int DH_zencod_bn_mod_exp ( const DH *dh, BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
+ BN_MONT_CTX *m_ctx )
+{
+ CHEESE () ;
+
+ return zencod_bn_mod_exp ( r, a, p, m, ctx ) ;
+}
+#endif /* !OPENSSL_NO_DH */
+
+
+/* RAND stuff Functions
+ */
+static void RAND_zencod_seed ( const void *buf, int num )
+{
+ /* Nothing to do cause our crypto accelerator provide a true random generator */
+}
+
+
+static int RAND_zencod_rand_bytes ( unsigned char *buf, int num )
+{
+ zen_nb_t r;
+
+ CHEESE();
+
+ if ( !zencod_dso ) {
+ ENGINEerr(ZENCOD_F_ZENCOD_RAND, ZENCOD_R_NOT_LOADED);
+ return 0;
+ }
+
+ ptr_zencod_init_number ( &r, num * 8, buf ) ;
+
+ if ( ptr_zencod_rand_bytes ( &r, ZENBRIDGE_RNG_DIRECT ) < 0 ) {
+ PERROR("zenbridge_rand_bytes");
+ ENGINEerr(ZENCOD_F_ZENCOD_RAND, ZENCOD_R_REQUEST_FAILED);
+ return 0;
+ }
+
+ return 1;
+}
+
+
+static int RAND_zencod_rand_status ( void )
+{
+ CHEESE () ;
+
+ return 1;
+}
+
+
+/* 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 )
+{
+
+ if ( id && ( strcmp ( id, engine_zencod_id ) != 0 ) ) {
+ return 0 ;
+ }
+ if ( !bind_helper ( e ) ) {
+ return 0 ;
+ }
+
+ return 1 ;
+}
+
+IMPLEMENT_DYNAMIC_CHECK_FN ()
+IMPLEMENT_DYNAMIC_BIND_FN ( bind_fn )
+#endif /* ENGINE_DYNAMIC_SUPPORT */
+
+
+
+
+/*
+ * Adding "Digest" and "Cipher" tools ...
+ * This is in development ... ;-)
+ * In orfer to code this, i refer to hw_openbsd_dev_crypto and openssl engine made by Geoff Thorpe (if i'm rigth),
+ * and evp, sha md5 definitions etc ...
+ */
+/* First add some include ... */
+#include <openssl/evp.h>
+#include <openssl/sha.h>
+#include <openssl/md5.h>
+#include <openssl/rc4.h>
+#include <openssl/des.h>
+
+
+/* Some variables declaration ... */
+/* DONS:
+ * Disable symetric computation except DES and 3DES, but let part of the code
+ */
+/* static int engine_digest_nids [ ] = { NID_sha1, NID_md5 } ; */
+static int engine_digest_nids [ ] = { } ;
+static int engine_digest_nids_num = 0 ;
+/* static int engine_cipher_nids [ ] = { NID_rc4, NID_rc4_40, NID_des_cbc, NID_des_ede3_cbc } ; */
+static int engine_cipher_nids [ ] = { NID_des_cbc, NID_des_ede3_cbc } ;
+static int engine_cipher_nids_num = 2 ;
+
+
+/* Function prototype ... */
+/* SHA stuff */
+static int engine_sha1_init ( EVP_MD_CTX *ctx ) ;
+static int engine_sha1_update ( EVP_MD_CTX *ctx, const void *data, unsigned long count ) ;
+static int engine_sha1_final ( EVP_MD_CTX *ctx, unsigned char *md ) ;
+
+/* MD5 stuff */
+static int engine_md5_init ( EVP_MD_CTX *ctx ) ;
+static int engine_md5_update ( EVP_MD_CTX *ctx, const void *data, unsigned long count ) ;
+static int engine_md5_final ( EVP_MD_CTX *ctx, unsigned char *md ) ;
+
+static int engine_md_cleanup ( EVP_MD_CTX *ctx ) ;
+static int engine_md_copy ( EVP_MD_CTX *to, const EVP_MD_CTX *from ) ;
+
+
+/* RC4 Stuff */
+static int engine_rc4_init_key ( EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc ) ;
+static int engine_rc4_cipher ( EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl ) ;
+
+/* DES Stuff */
+static int engine_des_init_key ( EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc ) ;
+static int engine_des_cbc_cipher ( EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl ) ;
+
+/* 3DES Stuff */
+static int engine_des_ede3_init_key ( EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc ) ;
+static int engine_des_ede3_cbc_cipher ( EVP_CIPHER_CTX *ctx, unsigned char *out,const unsigned char *in, unsigned int inl ) ;
+
+static int engine_cipher_cleanup ( EVP_CIPHER_CTX *ctx ) ; /* cleanup ctx */
+
+
+/* The one for SHA ... */
+static const EVP_MD engine_sha1_md =
+{
+ NID_sha1,
+ NID_sha1WithRSAEncryption,
+ SHA_DIGEST_LENGTH,
+ EVP_MD_FLAG_ONESHOT,
+ /* 0, */ /* EVP_MD_FLAG_ONESHOT = x0001 digest can only handle a single block
+ * XXX: set according to device info ... */
+ engine_sha1_init,
+ engine_sha1_update,
+ engine_sha1_final,
+ engine_md_copy, /* dev_crypto_sha_copy */
+ engine_md_cleanup, /* dev_crypto_sha_cleanup */
+ EVP_PKEY_RSA_method,
+ SHA_CBLOCK,
+ /* sizeof ( EVP_MD * ) + sizeof ( SHA_CTX ) */
+ sizeof ( ZEN_MD_DATA )
+ /* sizeof ( MD_CTX_DATA ) The message digest data stucture ... */
+} ;
+
+/* The one for MD5 ... */
+static const EVP_MD engine_md5_md =
+{
+ NID_md5,
+ NID_md5WithRSAEncryption,
+ MD5_DIGEST_LENGTH,
+ EVP_MD_FLAG_ONESHOT,
+ /* 0, */ /* EVP_MD_FLAG_ONESHOT = x0001 digest can only handle a single block
+ * XXX: set according to device info ... */
+ engine_md5_init,
+ engine_md5_update,
+ engine_md5_final,
+ engine_md_copy, /* dev_crypto_md5_copy */
+ engine_md_cleanup, /* dev_crypto_md5_cleanup */
+ EVP_PKEY_RSA_method,
+ MD5_CBLOCK,
+ /* sizeof ( EVP_MD * ) + sizeof ( MD5_CTX ) */
+ sizeof ( ZEN_MD_DATA )
+ /* sizeof ( MD_CTX_DATA ) The message digest data stucture ... */
+} ;
+
+
+/* The one for RC4 ... */
+#define EVP_RC4_KEY_SIZE 16
+
+/* Try something static ... */
+typedef struct
+{
+ unsigned int len ;
+ unsigned int first ;
+ unsigned char rc4_state [ 260 ] ;
+} NEW_ZEN_RC4_KEY ;
+
+#define rc4_data(ctx) ( (EVP_RC4_KEY *) ( ctx )->cipher_data )
+
+static const EVP_CIPHER engine_rc4 =
+{
+ NID_rc4,
+ 1,
+ 16, /* EVP_RC4_KEY_SIZE should be 128 bits */
+ 0, /* FIXME: key should be up to 256 bytes */
+ EVP_CIPH_VARIABLE_LENGTH,
+ engine_rc4_init_key,
+ engine_rc4_cipher,
+ engine_cipher_cleanup,
+ sizeof ( NEW_ZEN_RC4_KEY ),
+ NULL,
+ NULL,
+ NULL
+} ;
+
+/* The one for RC4_40 ... */
+static const EVP_CIPHER engine_rc4_40 =
+{
+ NID_rc4_40,
+ 1,
+ 5, /* 40 bits */
+ 0,
+ EVP_CIPH_VARIABLE_LENGTH,
+ engine_rc4_init_key,
+ engine_rc4_cipher,
+ engine_cipher_cleanup,
+ sizeof ( NEW_ZEN_RC4_KEY ),
+ NULL,
+ NULL,
+ NULL
+} ;
+
+/* The one for DES ... */
+
+/* Try something static ... */
+typedef struct
+{
+ unsigned char des_key [ 24 ] ;
+ unsigned char des_iv [ 8 ] ;
+} ZEN_DES_KEY ;
+
+static const EVP_CIPHER engine_des_cbc =
+ {
+ NID_des_cbc,
+ 8, 8, 8,
+ 0 | EVP_CIPH_CBC_MODE,
+ engine_des_init_key,
+ engine_des_cbc_cipher,
+ engine_cipher_cleanup,
+ sizeof(ZEN_DES_KEY),
+ EVP_CIPHER_set_asn1_iv,
+ EVP_CIPHER_get_asn1_iv,
+ NULL,
+ NULL
+ };
+
+/* The one for 3DES ... */
+
+/* Try something static ... */
+typedef struct
+{
+ unsigned char des3_key [ 24 ] ;
+ unsigned char des3_iv [ 8 ] ;
+} ZEN_3DES_KEY ;
+
+#define des_data(ctx) ( (DES_EDE_KEY *) ( ctx )->cipher_data )
+
+static const EVP_CIPHER engine_des_ede3_cbc =
+ {
+ NID_des_ede3_cbc,
+ 8, 8, 8,
+ 0 | EVP_CIPH_CBC_MODE,
+ engine_des_ede3_init_key,
+ engine_des_ede3_cbc_cipher,
+ engine_cipher_cleanup,
+ sizeof(ZEN_3DES_KEY),
+ EVP_CIPHER_set_asn1_iv,
+ EVP_CIPHER_get_asn1_iv,
+ NULL,
+ NULL
+ };
+
+
+/* General function cloned on hw_openbsd_dev_crypto one ... */
+static int engine_digests ( ENGINE *e, const EVP_MD **digest, const int **nids, int nid )
+{
+
+#ifdef DEBUG_ZENCOD_MD
+ fprintf ( stderr, "\t=>Function : static int engine_digests () called !\n" ) ;
+#endif
+
+ if ( !digest ) {
+ /* We are returning a list of supported nids */
+ *nids = engine_digest_nids ;
+ return engine_digest_nids_num ;
+ }
+ /* We are being asked for a specific digest */
+ if ( nid == NID_md5 ) {
+ *digest = &engine_md5_md ;
+ }
+ else if ( nid == NID_sha1 ) {
+ *digest = &engine_sha1_md ;
+ }
+ else {
+ *digest = NULL ;
+ return 0 ;
+ }
+ return 1 ;
+}
+
+
+/* SHA stuff Functions
+ */
+static int engine_sha1_init ( EVP_MD_CTX *ctx )
+{
+
+ int to_return = 0 ;
+
+ /* Test with zenbridge library ... */
+ to_return = ptr_zencod_sha1_init ( (ZEN_MD_DATA *) ctx->md_data ) ;
+ to_return = !to_return ;
+
+ return to_return ;
+}
+
+
+static int engine_sha1_update ( EVP_MD_CTX *ctx, const void *data, unsigned long count )
+{
+
+ zen_nb_t input ;
+ int to_return = 0 ;
+
+ /* Convert parameters ... */
+ input.len = count ;
+ input.data = (unsigned char *) data ;
+
+ /* Test with zenbridge library ... */
+ to_return = ptr_zencod_sha1_update ( (ZEN_MD_DATA *) ctx->md_data, (const zen_nb_t *) &input ) ;
+ to_return = !to_return ;
+
+ return to_return ;
+}
+
+
+static int engine_sha1_final ( EVP_MD_CTX *ctx, unsigned char *md )
+{
+
+ zen_nb_t output ;
+ int to_return = 0 ;
+
+ /* Convert parameters ... */
+ output.len = SHA_DIGEST_LENGTH ;
+ output.data = md ;
+
+ /* Test with zenbridge library ... */
+ to_return = ptr_zencod_sha1_do_final ( (ZEN_MD_DATA *) ctx->md_data, (zen_nb_t *) &output ) ;
+ to_return = !to_return ;
+
+ return to_return ;
+}
+
+
+
+/* MD5 stuff Functions
+ */
+static int engine_md5_init ( EVP_MD_CTX *ctx )
+{
+
+ int to_return = 0 ;
+
+ /* Test with zenbridge library ... */
+ to_return = ptr_zencod_md5_init ( (ZEN_MD_DATA *) ctx->md_data ) ;
+ to_return = !to_return ;
+
+ return to_return ;
+}
+
+
+static int engine_md5_update ( EVP_MD_CTX *ctx, const void *data, unsigned long count )
+{
+
+ zen_nb_t input ;
+ int to_return = 0 ;
+
+ /* Convert parameters ... */
+ input.len = count ;
+ input.data = (unsigned char *) data ;
+
+ /* Test with zenbridge library ... */
+ to_return = ptr_zencod_md5_update ( (ZEN_MD_DATA *) ctx->md_data, (const zen_nb_t *) &input ) ;
+ to_return = !to_return ;
+
+ return to_return ;
+}
+
+
+static int engine_md5_final ( EVP_MD_CTX *ctx, unsigned char *md )
+{
+
+ zen_nb_t output ;
+ int to_return = 0 ;
+
+ /* Convert parameters ... */
+ output.len = MD5_DIGEST_LENGTH ;
+ output.data = md ;
+
+ /* Test with zenbridge library ... */
+ to_return = ptr_zencod_md5_do_final ( (ZEN_MD_DATA *) ctx->md_data, (zen_nb_t *) &output ) ;
+ to_return = !to_return ;
+
+ return to_return ;
+}
+
+
+static int engine_md_cleanup ( EVP_MD_CTX *ctx )
+{
+
+ ZEN_MD_DATA *zen_md_data = (ZEN_MD_DATA *) ctx->md_data ;
+
+ if ( zen_md_data->HashBuffer != NULL ) {
+ OPENSSL_free ( zen_md_data->HashBuffer ) ;
+ zen_md_data->HashBufferSize = 0 ;
+ ctx->md_data = NULL ;
+ }
+
+ return 1 ;
+}
+
+
+static int engine_md_copy ( EVP_MD_CTX *to, const EVP_MD_CTX *from )
+{
+ const ZEN_MD_DATA *from_md = (ZEN_MD_DATA *) from->md_data ;
+ ZEN_MD_DATA *to_md = (ZEN_MD_DATA *) to->md_data ;
+
+ to_md->HashBuffer = OPENSSL_malloc ( from_md->HashBufferSize ) ;
+ memcpy ( to_md->HashBuffer, from_md->HashBuffer, from_md->HashBufferSize ) ;
+
+ return 1;
+}
+
+
+/* General function cloned on hw_openbsd_dev_crypto one ... */
+static int engine_ciphers ( ENGINE *e, const EVP_CIPHER **cipher, const int **nids, int nid )
+{
+
+ if ( !cipher ) {
+ /* We are returning a list of supported nids */
+ *nids = engine_cipher_nids ;
+ return engine_cipher_nids_num ;
+ }
+ /* We are being asked for a specific cipher */
+ if ( nid == NID_rc4 ) {
+ *cipher = &engine_rc4 ;
+ }
+ else if ( nid == NID_rc4_40 ) {
+ *cipher = &engine_rc4_40 ;
+ }
+ else if ( nid == NID_des_cbc ) {
+ *cipher = &engine_des_cbc ;
+ }
+ else if ( nid == NID_des_ede3_cbc ) {
+ *cipher = &engine_des_ede3_cbc ;
+ }
+ else {
+ *cipher = NULL ;
+ return 0 ;
+ }
+
+ return 1 ;
+}
+
+
+static int engine_rc4_init_key ( EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc )
+{
+ int to_return = 0 ;
+ int i = 0 ;
+ int nb = 0 ;
+ NEW_ZEN_RC4_KEY *tmp_rc4_key = NULL ;
+
+ tmp_rc4_key = (NEW_ZEN_RC4_KEY *) ( ctx->cipher_data ) ;
+ tmp_rc4_key->first = 0 ;
+ tmp_rc4_key->len = ctx->key_len ;
+ tmp_rc4_key->rc4_state [ 0 ] = 0x00 ;
+ tmp_rc4_key->rc4_state [ 2 ] = 0x00 ;
+ nb = 256 / ctx->key_len ;
+ for ( i = 0; i < nb ; i++ ) {
+ memcpy ( &( tmp_rc4_key->rc4_state [ 4 + i*ctx->key_len ] ), key, ctx->key_len ) ;
+ }
+
+ to_return = 1 ;
+
+ return to_return ;
+}
+
+
+static int engine_rc4_cipher ( EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int in_len )
+{
+
+ zen_nb_t output, input ;
+ zen_nb_t rc4key ;
+ int to_return = 0 ;
+ NEW_ZEN_RC4_KEY *tmp_rc4_key = NULL ;
+
+ /* Convert parameters ... */
+ input.len = in_len ;
+ input.data = (unsigned char *) in ;
+ output.len = in_len ;
+ output.data = (unsigned char *) out ;
+
+ tmp_rc4_key = ( (NEW_ZEN_RC4_KEY *) ( ctx->cipher_data ) ) ;
+ rc4key.len = 260 ;
+ rc4key.data = &( tmp_rc4_key->rc4_state [ 0 ] ) ;
+
+ /* Test with zenbridge library ... */
+ to_return = ptr_zencod_rc4_cipher ( &output, &input, (const zen_nb_t *) &rc4key, &( tmp_rc4_key->rc4_state [0] ), &( tmp_rc4_key->rc4_state [3] ), !tmp_rc4_key->first ) ;
+ to_return = !to_return ;
+
+ /* Update encryption state ... */
+ tmp_rc4_key->first = 1 ;
+ tmp_rc4_key = NULL ;
+
+ return to_return ;
+}
+
+
+static int engine_des_init_key ( EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc )
+{
+
+ ZEN_DES_KEY *tmp_des_key = NULL ;
+ int to_return = 0 ;
+
+ tmp_des_key = (ZEN_DES_KEY *) ( ctx->cipher_data ) ;
+ memcpy ( &( tmp_des_key->des_key [ 0 ] ), key, 8 ) ;
+ memcpy ( &( tmp_des_key->des_key [ 8 ] ), key, 8 ) ;
+ memcpy ( &( tmp_des_key->des_key [ 16 ] ), key, 8 ) ;
+ memcpy ( &( tmp_des_key->des_iv [ 0 ] ), iv, 8 ) ;
+
+ to_return = 1 ;
+
+ return to_return ;
+}
+
+
+static int engine_des_cbc_cipher ( EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl )
+{
+
+ zen_nb_t output, input ;
+ zen_nb_t deskey_1, deskey_2, deskey_3, iv ;
+ int to_return = 0 ;
+
+ /* Convert parameters ... */
+ input.len = inl ;
+ input.data = (unsigned char *) in ;
+ output.len = inl ;
+ output.data = out ;
+
+ /* Set key parameters ... */
+ deskey_1.len = 8 ;
+ deskey_2.len = 8 ;
+ deskey_3.len = 8 ;
+ deskey_1.data = (unsigned char *) ( (ZEN_DES_KEY *) ( ctx->cipher_data ) )->des_key ;
+ deskey_2.data = (unsigned char *) &( (ZEN_DES_KEY *) ( ctx->cipher_data ) )->des_key [ 8 ] ;
+ deskey_3.data = (unsigned char *) &( (ZEN_DES_KEY *) ( ctx->cipher_data ) )->des_key [ 16 ] ;
+
+ /* Key correct iv ... */
+ memcpy ( ( (ZEN_DES_KEY *) ( ctx->cipher_data ) )->des_iv, ctx->iv, 8 ) ;
+ iv.len = 8 ;
+ iv.data = (unsigned char *) ( (ZEN_DES_KEY *) ( ctx->cipher_data ) )->des_iv ;
+
+ if ( ctx->encrypt == 0 ) {
+ memcpy ( ctx->iv, &( input.data [ input.len - 8 ] ), 8 ) ;
+ }
+
+ /* Test with zenbridge library ... */
+ to_return = ptr_zencod_xdes_cipher ( &output, &input,
+ (zen_nb_t *) &deskey_1, (zen_nb_t *) &deskey_2, (zen_nb_t *) &deskey_3, &iv, ctx->encrypt ) ;
+ to_return = !to_return ;
+
+ /* But we need to set up the rigth iv ...
+ * Test ENCRYPT or DECRYPT mode to set iv ... */
+ if ( ctx->encrypt == 1 ) {
+ memcpy ( ctx->iv, &( output.data [ output.len - 8 ] ), 8 ) ;
+ }
+
+ return to_return ;
+}
+
+
+static int engine_des_ede3_init_key ( EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc )
+{
+
+ ZEN_3DES_KEY *tmp_3des_key = NULL ;
+ int to_return = 0 ;
+
+ tmp_3des_key = (ZEN_3DES_KEY *) ( ctx->cipher_data ) ;
+ memcpy ( &( tmp_3des_key->des3_key [ 0 ] ), key, 24 ) ;
+ memcpy ( &( tmp_3des_key->des3_iv [ 0 ] ), iv, 8 ) ;
+
+ to_return = 1;
+
+ return to_return ;
+}
+
+
+static int engine_des_ede3_cbc_cipher ( EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in,
+ unsigned int in_len )
+{
+
+ zen_nb_t output, input ;
+ zen_nb_t deskey_1, deskey_2, deskey_3, iv ;
+ int to_return = 0 ;
+
+ /* Convert parameters ... */
+ input.len = in_len ;
+ input.data = (unsigned char *) in ;
+ output.len = in_len ;
+ output.data = out ;
+
+ /* Set key ... */
+ deskey_1.len = 8 ;
+ deskey_2.len = 8 ;
+ deskey_3.len = 8 ;
+ deskey_1.data = (unsigned char *) ( (ZEN_3DES_KEY *) ( ctx->cipher_data ) )->des3_key ;
+ deskey_2.data = (unsigned char *) &( (ZEN_3DES_KEY *) ( ctx->cipher_data ) )->des3_key [ 8 ] ;
+ deskey_3.data = (unsigned char *) &( (ZEN_3DES_KEY *) ( ctx->cipher_data ) )->des3_key [ 16 ] ;
+
+ /* Key correct iv ... */
+ memcpy ( ( (ZEN_3DES_KEY *) ( ctx->cipher_data ) )->des3_iv, ctx->iv, 8 ) ;
+ iv.len = 8 ;
+ iv.data = (unsigned char *) ( (ZEN_3DES_KEY *) ( ctx->cipher_data ) )->des3_iv ;
+
+ if ( ctx->encrypt == 0 ) {
+ memcpy ( ctx->iv, &( input.data [ input.len - 8 ] ), 8 ) ;
+ }
+
+ /* Test with zenbridge library ... */
+ to_return = ptr_zencod_xdes_cipher ( &output, &input,
+ (zen_nb_t *) &deskey_1, (zen_nb_t *) &deskey_2, (zen_nb_t *) &deskey_3, &iv, ctx->encrypt ) ;
+ to_return = !to_return ;
+
+ if ( ctx->encrypt == 1 ) {
+ memcpy ( ctx->iv, &( output.data [ output.len - 8 ] ), 8 ) ;
+ }
+
+ return to_return ;
+}
+
+
+static int engine_cipher_cleanup ( EVP_CIPHER_CTX *ctx )
+{
+
+ /* Set the key pointer ... */
+ if ( ctx->cipher->nid == NID_rc4 || ctx->cipher->nid == NID_rc4_40 ) {
+ }
+ else if ( ctx->cipher->nid == NID_des_cbc ) {
+ }
+ else if ( ctx->cipher->nid == NID_des_ede3_cbc ) {
+ }
+
+ return 1 ;
+}
+
+
+#endif /* !OPENSSL_NO_HW_ZENCOD */
+#endif /* !OPENSSL_NO_HW */
projects / openssl.git / commitdiff