diff options
Diffstat (limited to 'demos/engines/zencod/hw_zencod.c')
-rw-r--r-- | demos/engines/zencod/hw_zencod.c | 1736 |
1 files changed, 1736 insertions, 0 deletions
diff --git a/demos/engines/zencod/hw_zencod.c b/demos/engines/zencod/hw_zencod.c new file mode 100644 index 0000000000..308e18710f --- /dev/null +++ b/demos/engines/zencod/hw_zencod.c @@ -0,0 +1,1736 @@ +/* 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 */ + |