diff options
Diffstat (limited to 'crypto/engine/hw_cswift.c')
| -rw-r--r-- | crypto/engine/hw_cswift.c | 995 |
1 files changed, 0 insertions, 995 deletions
diff --git a/crypto/engine/hw_cswift.c b/crypto/engine/hw_cswift.c deleted file mode 100644 index 1b4e4e8..0000000 --- a/crypto/engine/hw_cswift.c +++ /dev/null @@ -1,995 +0,0 @@ -/* crypto/engine/hw_cswift.c */ -/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL - * project 2000. - */ -/* ==================================================================== - * 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). - * - */ - -#include <stdio.h> -#include <openssl/crypto.h> -#include "cryptlib.h" -#include <openssl/dso.h> -#include <openssl/engine.h> - -#ifndef OPENSSL_NO_HW -#ifndef OPENSSL_NO_HW_CSWIFT - -/* Attribution notice: Rainbow have generously allowed me to reproduce - * the necessary definitions here from their API. This means the support - * can build independently of whether application builders have the - * API or hardware. This will allow developers to easily produce software - * that has latent hardware support for any users that have accelerators - * installed, without the developers themselves needing anything extra. - * - * I have only clipped the parts from the CryptoSwift header files that - * are (or seem) relevant to the CryptoSwift support code. This is - * simply to keep the file sizes reasonable. - * [Geoff] - */ -#ifdef FLAT_INC -#include "cswift.h" -#else -#include "vendor_defns/cswift.h" -#endif - -#define CSWIFT_LIB_NAME "cswift engine" -#include "hw_cswift_err.c" - -static int cswift_destroy(ENGINE *e); -static int cswift_init(ENGINE *e); -static int cswift_finish(ENGINE *e); -static int cswift_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)()); - -/* BIGNUM stuff */ -static int cswift_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx); -static int cswift_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *q, const BIGNUM *dmp1, const BIGNUM *dmq1, - const BIGNUM *iqmp, BN_CTX *ctx); - -#ifndef OPENSSL_NO_RSA -/* RSA stuff */ -static int cswift_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa); -#endif -/* This function is aliased to mod_exp (with the mont stuff dropped). */ -static int cswift_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx); - -#ifndef OPENSSL_NO_DSA -/* DSA stuff */ -static DSA_SIG *cswift_dsa_sign(const unsigned char *dgst, int dlen, DSA *dsa); -static int cswift_dsa_verify(const unsigned char *dgst, int dgst_len, - DSA_SIG *sig, DSA *dsa); -#endif - -#ifndef OPENSSL_NO_DH -/* DH stuff */ -/* This function is alised to mod_exp (with the DH and mont dropped). */ -static int cswift_mod_exp_dh(const DH *dh, BIGNUM *r, - const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx); -#endif - -/* RAND stuff */ -static int cswift_rand_bytes(unsigned char *buf, int num); -static int cswift_rand_status(void); - -/* The definitions for control commands specific to this engine */ -#define CSWIFT_CMD_SO_PATH ENGINE_CMD_BASE -static const ENGINE_CMD_DEFN cswift_cmd_defns[] = { - {CSWIFT_CMD_SO_PATH, - "SO_PATH", - "Specifies the path to the 'cswift' shared library", - ENGINE_CMD_FLAG_STRING}, - {0, NULL, NULL, 0} - }; - -#ifndef OPENSSL_NO_RSA -/* Our internal RSA_METHOD that we provide pointers to */ -static RSA_METHOD cswift_rsa = - { - "CryptoSwift RSA method", - NULL, - NULL, - NULL, - NULL, - cswift_rsa_mod_exp, - cswift_mod_exp_mont, - NULL, - NULL, - 0, - NULL, - NULL, - NULL - }; -#endif - -#ifndef OPENSSL_NO_DSA -/* Our internal DSA_METHOD that we provide pointers to */ -static DSA_METHOD cswift_dsa = - { - "CryptoSwift DSA method", - cswift_dsa_sign, - NULL, /* dsa_sign_setup */ - cswift_dsa_verify, - NULL, /* dsa_mod_exp */ - NULL, /* bn_mod_exp */ - NULL, /* init */ - NULL, /* finish */ - 0, /* flags */ - NULL /* app_data */ - }; -#endif - -#ifndef OPENSSL_NO_DH -/* Our internal DH_METHOD that we provide pointers to */ -static DH_METHOD cswift_dh = - { - "CryptoSwift DH method", - NULL, - NULL, - cswift_mod_exp_dh, - NULL, - NULL, - 0, - NULL - }; -#endif - -static RAND_METHOD cswift_random = - { - /* "CryptoSwift RAND method", */ - NULL, - cswift_rand_bytes, - NULL, - NULL, - cswift_rand_bytes, - cswift_rand_status, - }; - - -/* Constants used when creating the ENGINE */ -static const char *engine_cswift_id = "cswift"; -static const char *engine_cswift_name = "CryptoSwift hardware engine support"; - -/* This internal function is used by ENGINE_cswift() and possibly by the - * "dynamic" ENGINE support too */ -static int bind_helper(ENGINE *e) - { -#ifndef OPENSSL_NO_RSA - const RSA_METHOD *meth1; -#endif -#ifndef OPENSSL_NO_DH - const DH_METHOD *meth2; -#endif - if(!ENGINE_set_id(e, engine_cswift_id) || - !ENGINE_set_name(e, engine_cswift_name) || -#ifndef OPENSSL_NO_RSA - !ENGINE_set_RSA(e, &cswift_rsa) || -#endif -#ifndef OPENSSL_NO_DSA - !ENGINE_set_DSA(e, &cswift_dsa) || -#endif -#ifndef OPENSSL_NO_DH - !ENGINE_set_DH(e, &cswift_dh) || -#endif - !ENGINE_set_RAND(e, &cswift_random) || - !ENGINE_set_destroy_function(e, cswift_destroy) || - !ENGINE_set_init_function(e, cswift_init) || - !ENGINE_set_finish_function(e, cswift_finish) || - !ENGINE_set_ctrl_function(e, cswift_ctrl) || - !ENGINE_set_cmd_defns(e, cswift_cmd_defns)) - return 0; - -#ifndef OPENSSL_NO_RSA - /* We know that the "PKCS1_SSLeay()" functions hook properly - * to the cswift-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! */ - meth1 = RSA_PKCS1_SSLeay(); - cswift_rsa.rsa_pub_enc = meth1->rsa_pub_enc; - cswift_rsa.rsa_pub_dec = meth1->rsa_pub_dec; - cswift_rsa.rsa_priv_enc = meth1->rsa_priv_enc; - cswift_rsa.rsa_priv_dec = meth1->rsa_priv_dec; -#endif - -#ifndef OPENSSL_NO_DH - /* Much the same for Diffie-Hellman */ - meth2 = DH_OpenSSL(); - cswift_dh.generate_key = meth2->generate_key; - cswift_dh.compute_key = meth2->compute_key; -#endif - - /* Ensure the cswift error handling is set up */ - ERR_load_CSWIFT_strings(); - return 1; - } - -static ENGINE *engine_cswift(void) - { - ENGINE *ret = ENGINE_new(); - if(!ret) - return NULL; - if(!bind_helper(ret)) - { - ENGINE_free(ret); - return NULL; - } - return ret; - } - -void ENGINE_load_cswift(void) - { - /* Copied from eng_[openssl|dyn].c */ - ENGINE *toadd = engine_cswift(); - 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 CryptoSwift 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 *cswift_dso = NULL; - -/* These are the function pointers that are (un)set when the library has - * successfully (un)loaded. */ -t_swAcquireAccContext *p_CSwift_AcquireAccContext = NULL; -t_swAttachKeyParam *p_CSwift_AttachKeyParam = NULL; -t_swSimpleRequest *p_CSwift_SimpleRequest = NULL; -t_swReleaseAccContext *p_CSwift_ReleaseAccContext = NULL; - -/* Used in the DSO operations. */ -static const char *CSWIFT_LIBNAME = NULL; -static const char *get_CSWIFT_LIBNAME(void) - { - if(CSWIFT_LIBNAME) - return CSWIFT_LIBNAME; - return "swift"; - } -static void free_CSWIFT_LIBNAME(void) - { - if(CSWIFT_LIBNAME) - OPENSSL_free((void*)CSWIFT_LIBNAME); - CSWIFT_LIBNAME = NULL; - } -static long set_CSWIFT_LIBNAME(const char *name) - { - free_CSWIFT_LIBNAME(); - return (((CSWIFT_LIBNAME = BUF_strdup(name)) != NULL) ? 1 : 0); - } -static const char *CSWIFT_F1 = "swAcquireAccContext"; -static const char *CSWIFT_F2 = "swAttachKeyParam"; -static const char *CSWIFT_F3 = "swSimpleRequest"; -static const char *CSWIFT_F4 = "swReleaseAccContext"; - - -/* CryptoSwift library functions and mechanics - these are used by the - * higher-level functions further down. NB: As and where there's no - * error checking, take a look lower down where these functions are - * called, the checking and error handling is probably down there. */ - -/* utility function to obtain a context */ -static int get_context(SW_CONTEXT_HANDLE *hac) - { - SW_STATUS status; - - status = p_CSwift_AcquireAccContext(hac); - if(status != SW_OK) - return 0; - return 1; - } - -/* similarly to release one. */ -static void release_context(SW_CONTEXT_HANDLE hac) - { - p_CSwift_ReleaseAccContext(hac); - } - -/* Destructor (complements the "ENGINE_cswift()" constructor) */ -static int cswift_destroy(ENGINE *e) - { - free_CSWIFT_LIBNAME(); - ERR_unload_CSWIFT_strings(); - return 1; - } - -/* (de)initialisation functions. */ -static int cswift_init(ENGINE *e) - { - SW_CONTEXT_HANDLE hac; - t_swAcquireAccContext *p1; - t_swAttachKeyParam *p2; - t_swSimpleRequest *p3; - t_swReleaseAccContext *p4; - - if(cswift_dso != NULL) - { - CSWIFTerr(CSWIFT_F_CSWIFT_INIT,CSWIFT_R_ALREADY_LOADED); - goto err; - } - /* Attempt to load libswift.so/swift.dll/whatever. */ - cswift_dso = DSO_load(NULL, get_CSWIFT_LIBNAME(), NULL, 0); - if(cswift_dso == NULL) - { - CSWIFTerr(CSWIFT_F_CSWIFT_INIT,CSWIFT_R_NOT_LOADED); - goto err; - } - if(!(p1 = (t_swAcquireAccContext *) - DSO_bind_func(cswift_dso, CSWIFT_F1)) || - !(p2 = (t_swAttachKeyParam *) - DSO_bind_func(cswift_dso, CSWIFT_F2)) || - !(p3 = (t_swSimpleRequest *) - DSO_bind_func(cswift_dso, CSWIFT_F3)) || - !(p4 = (t_swReleaseAccContext *) - DSO_bind_func(cswift_dso, CSWIFT_F4))) - { - CSWIFTerr(CSWIFT_F_CSWIFT_INIT,CSWIFT_R_NOT_LOADED); - goto err; - } - /* Copy the pointers */ - p_CSwift_AcquireAccContext = p1; - p_CSwift_AttachKeyParam = p2; - p_CSwift_SimpleRequest = p3; - p_CSwift_ReleaseAccContext = p4; - /* Try and get a context - if not, we may have a DSO but no - * accelerator! */ - if(!get_context(&hac)) - { - CSWIFTerr(CSWIFT_F_CSWIFT_INIT,CSWIFT_R_UNIT_FAILURE); - goto err; - } - release_context(hac); - /* Everything's fine. */ - return 1; -err: - if(cswift_dso) - DSO_free(cswift_dso); - p_CSwift_AcquireAccContext = NULL; - p_CSwift_AttachKeyParam = NULL; - p_CSwift_SimpleRequest = NULL; - p_CSwift_ReleaseAccContext = NULL; - return 0; - } - -static int cswift_finish(ENGINE *e) - { - free_CSWIFT_LIBNAME(); - if(cswift_dso == NULL) - { - CSWIFTerr(CSWIFT_F_CSWIFT_FINISH,CSWIFT_R_NOT_LOADED); - return 0; - } - if(!DSO_free(cswift_dso)) - { - CSWIFTerr(CSWIFT_F_CSWIFT_FINISH,CSWIFT_R_UNIT_FAILURE); - return 0; - } - cswift_dso = NULL; - p_CSwift_AcquireAccContext = NULL; - p_CSwift_AttachKeyParam = NULL; - p_CSwift_SimpleRequest = NULL; - p_CSwift_ReleaseAccContext = NULL; - return 1; - } - -static int cswift_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)()) - { - int initialised = ((cswift_dso == NULL) ? 0 : 1); - switch(cmd) - { - case CSWIFT_CMD_SO_PATH: - if(p == NULL) - { - CSWIFTerr(CSWIFT_F_CSWIFT_CTRL,ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - if(initialised) - { - CSWIFTerr(CSWIFT_F_CSWIFT_CTRL,CSWIFT_R_ALREADY_LOADED); - return 0; - } - return set_CSWIFT_LIBNAME((const char *)p); - default: - break; - } - CSWIFTerr(CSWIFT_F_CSWIFT_CTRL,CSWIFT_R_CTRL_COMMAND_NOT_IMPLEMENTED); - return 0; - } - -/* Un petit mod_exp */ -static int cswift_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx) - { - /* I need somewhere to store temporary serialised values for - * use with the CryptoSwift API calls. A neat cheat - I'll use - * BIGNUMs from the BN_CTX but access their arrays directly as - * byte arrays <grin>. This way I don't have to clean anything - * up. */ - BIGNUM *modulus; - BIGNUM *exponent; - BIGNUM *argument; - BIGNUM *result; - SW_STATUS sw_status; - SW_LARGENUMBER arg, res; - SW_PARAM sw_param; - SW_CONTEXT_HANDLE hac; - int to_return, acquired; - - modulus = exponent = argument = result = NULL; - to_return = 0; /* expect failure */ - acquired = 0; - - if(!get_context(&hac)) - { - CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP,CSWIFT_R_UNIT_FAILURE); - goto err; - } - acquired = 1; - /* Prepare the params */ - BN_CTX_start(ctx); - modulus = BN_CTX_get(ctx); - exponent = BN_CTX_get(ctx); - argument = BN_CTX_get(ctx); - result = BN_CTX_get(ctx); - if(!result) - { - CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP,CSWIFT_R_BN_CTX_FULL); - goto err; - } - if(!bn_wexpand(modulus, m->top) || !bn_wexpand(exponent, p->top) || - !bn_wexpand(argument, a->top) || !bn_wexpand(result, m->top)) - { - CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP,CSWIFT_R_BN_EXPAND_FAIL); - goto err; - } - sw_param.type = SW_ALG_EXP; - sw_param.up.exp.modulus.nbytes = BN_bn2bin(m, - (unsigned char *)modulus->d); - sw_param.up.exp.modulus.value = (unsigned char *)modulus->d; - sw_param.up.exp.exponent.nbytes = BN_bn2bin(p, - (unsigned char *)exponent->d); - sw_param.up.exp.exponent.value = (unsigned char *)exponent->d; - /* Attach the key params */ - sw_status = p_CSwift_AttachKeyParam(hac, &sw_param); - switch(sw_status) - { - case SW_OK: - break; - case SW_ERR_INPUT_SIZE: - CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP,CSWIFT_R_BAD_KEY_SIZE); - goto err; - default: - { - char tmpbuf[DECIMAL_SIZE(sw_status)+1]; - CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP,CSWIFT_R_REQUEST_FAILED); - sprintf(tmpbuf, "%ld", sw_status); - ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf); - } - goto err; - } - /* Prepare the argument and response */ - arg.nbytes = BN_bn2bin(a, (unsigned char *)argument->d); - arg.value = (unsigned char *)argument->d; - res.nbytes = BN_num_bytes(m); - memset(result->d, 0, res.nbytes); - res.value = (unsigned char *)result->d; - /* Perform the operation */ - if((sw_status = p_CSwift_SimpleRequest(hac, SW_CMD_MODEXP, &arg, 1, - &res, 1)) != SW_OK) - { - char tmpbuf[DECIMAL_SIZE(sw_status)+1]; - CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP,CSWIFT_R_REQUEST_FAILED); - sprintf(tmpbuf, "%ld", sw_status); - ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf); - goto err; - } - /* Convert the response */ - BN_bin2bn((unsigned char *)result->d, res.nbytes, r); - to_return = 1; -err: - if(acquired) - release_context(hac); - BN_CTX_end(ctx); - return to_return; - } - -/* Un petit mod_exp chinois */ -static int cswift_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *q, const BIGNUM *dmp1, - const BIGNUM *dmq1, const BIGNUM *iqmp, BN_CTX *ctx) - { - SW_STATUS sw_status; - SW_LARGENUMBER arg, res; - SW_PARAM sw_param; - SW_CONTEXT_HANDLE hac; - BIGNUM *rsa_p = NULL; - BIGNUM *rsa_q = NULL; - BIGNUM *rsa_dmp1 = NULL; - BIGNUM *rsa_dmq1 = NULL; - BIGNUM *rsa_iqmp = NULL; - BIGNUM *argument = NULL; - BIGNUM *result = NULL; - int to_return = 0; /* expect failure */ - int acquired = 0; - - if(!get_context(&hac)) - { - CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT,CSWIFT_R_UNIT_FAILURE); - goto err; - } - acquired = 1; - /* Prepare the params */ - BN_CTX_start(ctx); - rsa_p = BN_CTX_get(ctx); - rsa_q = BN_CTX_get(ctx); - rsa_dmp1 = BN_CTX_get(ctx); - rsa_dmq1 = BN_CTX_get(ctx); - rsa_iqmp = BN_CTX_get(ctx); - argument = BN_CTX_get(ctx); - result = BN_CTX_get(ctx); - if(!result) - { - CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT,CSWIFT_R_BN_CTX_FULL); - goto err; - } - if(!bn_wexpand(rsa_p, p->top) || !bn_wexpand(rsa_q, q->top) || - !bn_wexpand(rsa_dmp1, dmp1->top) || - !bn_wexpand(rsa_dmq1, dmq1->top) || - !bn_wexpand(rsa_iqmp, iqmp->top) || - !bn_wexpand(argument, a->top) || - !bn_wexpand(result, p->top + q->top)) - { - CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT,CSWIFT_R_BN_EXPAND_FAIL); - goto err; - } - sw_param.type = SW_ALG_CRT; - sw_param.up.crt.p.nbytes = BN_bn2bin(p, (unsigned char *)rsa_p->d); - sw_param.up.crt.p.value = (unsigned char *)rsa_p->d; - sw_param.up.crt.q.nbytes = BN_bn2bin(q, (unsigned char *)rsa_q->d); - sw_param.up.crt.q.value = (unsigned char *)rsa_q->d; - sw_param.up.crt.dmp1.nbytes = BN_bn2bin(dmp1, - (unsigned char *)rsa_dmp1->d); - sw_param.up.crt.dmp1.value = (unsigned char *)rsa_dmp1->d; - sw_param.up.crt.dmq1.nbytes = BN_bn2bin(dmq1, - (unsigned char *)rsa_dmq1->d); - sw_param.up.crt.dmq1.value = (unsigned char *)rsa_dmq1->d; - sw_param.up.crt.iqmp.nbytes = BN_bn2bin(iqmp, - (unsigned char *)rsa_iqmp->d); - sw_param.up.crt.iqmp.value = (unsigned char *)rsa_iqmp->d; - /* Attach the key params */ - sw_status = p_CSwift_AttachKeyParam(hac, &sw_param); - switch(sw_status) - { - case SW_OK: - break; - case SW_ERR_INPUT_SIZE: - CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT,CSWIFT_R_BAD_KEY_SIZE); - goto err; - default: - { - char tmpbuf[DECIMAL_SIZE(sw_status)+1]; - CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT,CSWIFT_R_REQUEST_FAILED); - sprintf(tmpbuf, "%ld", sw_status); - ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf); - } - goto err; - } - /* Prepare the argument and response */ - arg.nbytes = BN_bn2bin(a, (unsigned char *)argument->d); - arg.value = (unsigned char *)argument->d; - res.nbytes = 2 * BN_num_bytes(p); - memset(result->d, 0, res.nbytes); - res.value = (unsigned char *)result->d; - /* Perform the operation */ - if((sw_status = p_CSwift_SimpleRequest(hac, SW_CMD_MODEXP_CRT, &arg, 1, - &res, 1)) != SW_OK) - { - char tmpbuf[DECIMAL_SIZE(sw_status)+1]; - CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT,CSWIFT_R_REQUEST_FAILED); - sprintf(tmpbuf, "%ld", sw_status); - ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf); - goto err; - } - /* Convert the response */ - BN_bin2bn((unsigned char *)result->d, res.nbytes, r); - to_return = 1; -err: - if(acquired) - release_context(hac); - BN_CTX_end(ctx); - return to_return; - } - -#ifndef OPENSSL_NO_RSA -static int cswift_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa) - { - BN_CTX *ctx; - int to_return = 0; - - if((ctx = BN_CTX_new()) == NULL) - goto err; - if(!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp) - { - CSWIFTerr(CSWIFT_F_CSWIFT_RSA_MOD_EXP,CSWIFT_R_MISSING_KEY_COMPONENTS); - goto err; - } - to_return = cswift_mod_exp_crt(r0, I, rsa->p, rsa->q, rsa->dmp1, - rsa->dmq1, rsa->iqmp, ctx); -err: - if(ctx) - BN_CTX_free(ctx); - return to_return; - } -#endif - -/* This function is aliased to mod_exp (with the mont stuff dropped). */ -static int cswift_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx) - { - return cswift_mod_exp(r, a, p, m, ctx); - } - -#ifndef OPENSSL_NO_DSA -static DSA_SIG *cswift_dsa_sign(const unsigned char *dgst, int dlen, DSA *dsa) - { - SW_CONTEXT_HANDLE hac; - SW_PARAM sw_param; - SW_STATUS sw_status; - SW_LARGENUMBER arg, res; - unsigned char *ptr; - BN_CTX *ctx; - BIGNUM *dsa_p = NULL; - BIGNUM *dsa_q = NULL; - BIGNUM *dsa_g = NULL; - BIGNUM *dsa_key = NULL; - BIGNUM *result = NULL; - DSA_SIG *to_return = NULL; - int acquired = 0; - - if((ctx = BN_CTX_new()) == NULL) - goto err; - if(!get_context(&hac)) - { - CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_UNIT_FAILURE); - goto err; - } - acquired = 1; - /* Prepare the params */ - BN_CTX_start(ctx); - dsa_p = BN_CTX_get(ctx); - dsa_q = BN_CTX_get(ctx); - dsa_g = BN_CTX_get(ctx); - dsa_key = BN_CTX_get(ctx); - result = BN_CTX_get(ctx); - if(!result) - { - CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_BN_CTX_FULL); - goto err; - } - if(!bn_wexpand(dsa_p, dsa->p->top) || - !bn_wexpand(dsa_q, dsa->q->top) || - !bn_wexpand(dsa_g, dsa->g->top) || - !bn_wexpand(dsa_key, dsa->priv_key->top) || - !bn_wexpand(result, dsa->p->top)) - { - CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_BN_EXPAND_FAIL); - goto err; - } - sw_param.type = SW_ALG_DSA; - sw_param.up.dsa.p.nbytes = BN_bn2bin(dsa->p, - (unsigned char *)dsa_p->d); - sw_param.up.dsa.p.value = (unsigned char *)dsa_p->d; - sw_param.up.dsa.q.nbytes = BN_bn2bin(dsa->q, - (unsigned char *)dsa_q->d); - sw_param.up.dsa.q.value = (unsigned char *)dsa_q->d; - sw_param.up.dsa.g.nbytes = BN_bn2bin(dsa->g, - (unsigned char *)dsa_g->d); - sw_param.up.dsa.g.value = (unsigned char *)dsa_g->d; - sw_param.up.dsa.key.nbytes = BN_bn2bin(dsa->priv_key, - (unsigned char *)dsa_key->d); - sw_param.up.dsa.key.value = (unsigned char *)dsa_key->d; - /* Attach the key params */ - sw_status = p_CSwift_AttachKeyParam(hac, &sw_param); - switch(sw_status) - { - case SW_OK: - break; - case SW_ERR_INPUT_SIZE: - CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_BAD_KEY_SIZE); - goto err; - default: - { - char tmpbuf[DECIMAL_SIZE(sw_status)+1]; - CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_REQUEST_FAILED); - sprintf(tmpbuf, "%ld", sw_status); - ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf); - } - goto err; - } - /* Prepare the argument and response */ - arg.nbytes = dlen; - arg.value = (unsigned char *)dgst; - res.nbytes = BN_num_bytes(dsa->p); - memset(result->d, 0, res.nbytes); - res.value = (unsigned char *)result->d; - /* Perform the operation */ - sw_status = p_CSwift_SimpleRequest(hac, SW_CMD_DSS_SIGN, &arg, 1, - &res, 1); - if(sw_status != SW_OK) - { - char tmpbuf[DECIMAL_SIZE(sw_status)+1]; - CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_REQUEST_FAILED); - sprintf(tmpbuf, "%ld", sw_status); - ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf); - goto err; - } - /* Convert the response */ - ptr = (unsigned char *)result->d; - if((to_return = DSA_SIG_new()) == NULL) - goto err; - to_return->r = BN_bin2bn((unsigned char *)result->d, 20, NULL); - to_return->s = BN_bin2bn((unsigned char *)result->d + 20, 20, NULL); - -err: - if(acquired) - release_context(hac); - if(ctx) - { - BN_CTX_end(ctx); - BN_CTX_free(ctx); - } - return to_return; - } - -static int cswift_dsa_verify(const unsigned char *dgst, int dgst_len, - DSA_SIG *sig, DSA *dsa) - { - SW_CONTEXT_HANDLE hac; - SW_PARAM sw_param; - SW_STATUS sw_status; - SW_LARGENUMBER arg[2], res; - unsigned long sig_result; - BN_CTX *ctx; - BIGNUM *dsa_p = NULL; - BIGNUM *dsa_q = NULL; - BIGNUM *dsa_g = NULL; - BIGNUM *dsa_key = NULL; - BIGNUM *argument = NULL; - int to_return = -1; - int acquired = 0; - - if((ctx = BN_CTX_new()) == NULL) - goto err; - if(!get_context(&hac)) - { - CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY,CSWIFT_R_UNIT_FAILURE); - goto err; - } - acquired = 1; - /* Prepare the params */ - BN_CTX_start(ctx); - dsa_p = BN_CTX_get(ctx); - dsa_q = BN_CTX_get(ctx); - dsa_g = BN_CTX_get(ctx); - dsa_key = BN_CTX_get(ctx); - argument = BN_CTX_get(ctx); - if(!argument) - { - CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY,CSWIFT_R_BN_CTX_FULL); - goto err; - } - if(!bn_wexpand(dsa_p, dsa->p->top) || - !bn_wexpand(dsa_q, dsa->q->top) || - !bn_wexpand(dsa_g, dsa->g->top) || - !bn_wexpand(dsa_key, dsa->pub_key->top) || - !bn_wexpand(argument, 40)) - { - CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY,CSWIFT_R_BN_EXPAND_FAIL); - goto err; - } - sw_param.type = SW_ALG_DSA; - sw_param.up.dsa.p.nbytes = BN_bn2bin(dsa->p, - (unsigned char *)dsa_p->d); - sw_param.up.dsa.p.value = (unsigned char *)dsa_p->d; - sw_param.up.dsa.q.nbytes = BN_bn2bin(dsa->q, - (unsigned char *)dsa_q->d); - sw_param.up.dsa.q.value = (unsigned char *)dsa_q->d; - sw_param.up.dsa.g.nbytes = BN_bn2bin(dsa->g, - (unsigned char *)dsa_g->d); - sw_param.up.dsa.g.value = (unsigned char *)dsa_g->d; - sw_param.up.dsa.key.nbytes = BN_bn2bin(dsa->pub_key, - (unsigned char *)dsa_key->d); - sw_param.up.dsa.key.value = (unsigned char *)dsa_key->d; - /* Attach the key params */ - sw_status = p_CSwift_AttachKeyParam(hac, &sw_param); - switch(sw_status) - { - case SW_OK: - break; - case SW_ERR_INPUT_SIZE: - CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY,CSWIFT_R_BAD_KEY_SIZE); - goto err; - default: - { - char tmpbuf[DECIMAL_SIZE(sw_status)+1]; - CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY,CSWIFT_R_REQUEST_FAILED); - sprintf(tmpbuf, "%ld", sw_status); - ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf); - } - goto err; - } - /* Prepare the argument and response */ - arg[0].nbytes = dgst_len; - arg[0].value = (unsigned char *)dgst; - arg[1].nbytes = 40; - arg[1].value = (unsigned char *)argument->d; - memset(arg[1].value, 0, 40); - BN_bn2bin(sig->r, arg[1].value + 20 - BN_num_bytes(sig->r)); - BN_bn2bin(sig->s, arg[1].value + 40 - BN_num_bytes(sig->s)); - res.nbytes = 4; /* unsigned long */ - res.value = (unsigned char *)(&sig_result); - /* Perform the operation */ - sw_status = p_CSwift_SimpleRequest(hac, SW_CMD_DSS_VERIFY, arg, 2, - &res, 1); - if(sw_status != SW_OK) - { - char tmpbuf[DECIMAL_SIZE(sw_status)+1]; - CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY,CSWIFT_R_REQUEST_FAILED); - sprintf(tmpbuf, "%ld", sw_status); - ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf); - goto err; - } - /* Convert the response */ - to_return = ((sig_result == 0) ? 0 : 1); - -err: - if(acquired) - release_context(hac); - if(ctx) - { - BN_CTX_end(ctx); - BN_CTX_free(ctx); - } - return to_return; - } -#endif - -#ifndef OPENSSL_NO_DH -/* This function is aliased to mod_exp (with the dh and mont dropped). */ -static int cswift_mod_exp_dh(const DH *dh, BIGNUM *r, - const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx) - { - return cswift_mod_exp(r, a, p, m, ctx); - } -#endif - -/* Random bytes are good */ -static int cswift_rand_bytes(unsigned char *buf, int num) -{ - SW_CONTEXT_HANDLE hac; - SW_STATUS swrc; - SW_LARGENUMBER largenum; - size_t nbytes = 0; - int acquired = 0; - int to_return = 0; /* assume failure */ - - if (!get_context(&hac)) - { - CSWIFTerr(CSWIFT_F_CSWIFT_CTRL, CSWIFT_R_UNIT_FAILURE); - goto err; - } - acquired = 1; - - while (nbytes < (size_t)num) - { - /* tell CryptoSwift how many bytes we want and where we want it. - * Note: - CryptoSwift cannot do more than 4096 bytes at a time. - * - CryptoSwift can only do multiple of 32-bits. */ - largenum.value = (SW_BYTE *) buf + nbytes; - if (4096 > num - nbytes) - largenum.nbytes = num - nbytes; - else - largenum.nbytes = 4096; - - swrc = p_CSwift_SimpleRequest(hac, SW_CMD_RAND, NULL, 0, &largenum, 1); - if (swrc != SW_OK) - { - char tmpbuf[20]; - CSWIFTerr(CSWIFT_F_CSWIFT_CTRL, CSWIFT_R_REQUEST_FAILED); - sprintf(tmpbuf, "%ld", swrc); - ERR_add_error_data(2, "CryptoSwift error number is ", tmpbuf); - goto err; - } - - nbytes += largenum.nbytes; - } - to_return = 1; /* success */ - -err: - if (acquired) - release_context(hac); - return to_return; -} - -static int cswift_rand_status(void) -{ - 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_cswift_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 */ - -#endif /* !OPENSSL_NO_HW_CSWIFT */ -#endif /* !OPENSSL_NO_HW */ |