/* 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 #include #include #include #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!!!) */ static ENGINE *ENGINE_zencod ( void ) { ENGINE *eng = ENGINE_new () ; if ( !eng ) { return NULL ; } if ( !bind_helper ( eng ) ) { ENGINE_free ( eng ) ; return NULL ; } return eng ; } #ifdef ENGINE_DYNAMIC_SUPPORT static #endif 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 #include #include #include #include /* 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 structure ... */ } ; /* 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 structure ... */ } ; /* 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 */