diff options
Diffstat (limited to 'engines/e_atalla.c')
| -rw-r--r-- | engines/e_atalla.c | 621 |
1 files changed, 0 insertions, 621 deletions
diff --git a/engines/e_atalla.c b/engines/e_atalla.c deleted file mode 100644 index 211f29f541..0000000000 --- a/engines/e_atalla.c +++ /dev/null @@ -1,621 +0,0 @@ -/* crypto/engine/hw_atalla.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 <string.h> -#include <openssl/crypto.h> -#include <openssl/buffer.h> -#include <openssl/dso.h> -#include <openssl/engine.h> -#ifndef OPENSSL_NO_RSA -# include <openssl/rsa.h> -#endif -#ifndef OPENSSL_NO_DSA -# include <openssl/dsa.h> -#endif -#ifndef OPENSSL_NO_DH -# include <openssl/dh.h> -#endif -#include <openssl/bn.h> - -#ifndef OPENSSL_NO_HW -# ifndef OPENSSL_NO_HW_ATALLA - -# ifdef FLAT_INC -# include "atalla.h" -# else -# include "vendor_defns/atalla.h" -# endif - -# define ATALLA_LIB_NAME "atalla engine" -# include "e_atalla_err.c" - -static int atalla_destroy(ENGINE *e); -static int atalla_init(ENGINE *e); -static int atalla_finish(ENGINE *e); -static int atalla_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void)); - -/* BIGNUM stuff */ -static int atalla_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx); - -# ifndef OPENSSL_NO_RSA -/* RSA stuff */ -static int atalla_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, - BN_CTX *ctx); -/* This function is aliased to mod_exp (with the mont stuff dropped). */ -static int atalla_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx, - BN_MONT_CTX *m_ctx); -# endif - -# ifndef OPENSSL_NO_DSA -/* DSA stuff */ -static int atalla_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1, - BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m, - BN_CTX *ctx, BN_MONT_CTX *in_mont); -static int atalla_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a, - const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, - BN_MONT_CTX *m_ctx); -# endif - -# ifndef OPENSSL_NO_DH -/* DH stuff */ -/* This function is alised to mod_exp (with the DH and mont dropped). */ -static int atalla_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 - -/* The definitions for control commands specific to this engine */ -# define ATALLA_CMD_SO_PATH ENGINE_CMD_BASE -static const ENGINE_CMD_DEFN atalla_cmd_defns[] = { - {ATALLA_CMD_SO_PATH, - "SO_PATH", - "Specifies the path to the 'atasi' 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 atalla_rsa = { - "Atalla RSA method", - NULL, - NULL, - NULL, - NULL, - atalla_rsa_mod_exp, - atalla_mod_exp_mont, - NULL, - NULL, - 0, - NULL, - NULL, - NULL, - NULL -}; -# endif - -# ifndef OPENSSL_NO_DSA -/* Our internal DSA_METHOD that we provide pointers to */ -static DSA_METHOD atalla_dsa = { - "Atalla DSA method", - NULL, /* dsa_do_sign */ - NULL, /* dsa_sign_setup */ - NULL, /* dsa_do_verify */ - atalla_dsa_mod_exp, /* dsa_mod_exp */ - atalla_mod_exp_dsa, /* bn_mod_exp */ - NULL, /* init */ - NULL, /* finish */ - 0, /* flags */ - NULL, /* app_data */ - NULL, /* dsa_paramgen */ - NULL /* dsa_keygen */ -}; -# endif - -# ifndef OPENSSL_NO_DH -/* Our internal DH_METHOD that we provide pointers to */ -static DH_METHOD atalla_dh = { - "Atalla DH method", - NULL, - NULL, - atalla_mod_exp_dh, - NULL, - NULL, - 0, - NULL, - NULL -}; -# endif - -/* Constants used when creating the ENGINE */ -static const char *engine_atalla_id = "atalla"; -static const char *engine_atalla_name = "Atalla hardware engine support"; - -/* - * This internal function is used by ENGINE_atalla() 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_DSA - const DSA_METHOD *meth2; -# endif -# ifndef OPENSSL_NO_DH - const DH_METHOD *meth3; -# endif - if (!ENGINE_set_id(e, engine_atalla_id) || - !ENGINE_set_name(e, engine_atalla_name) || -# ifndef OPENSSL_NO_RSA - !ENGINE_set_RSA(e, &atalla_rsa) || -# endif -# ifndef OPENSSL_NO_DSA - !ENGINE_set_DSA(e, &atalla_dsa) || -# endif -# ifndef OPENSSL_NO_DH - !ENGINE_set_DH(e, &atalla_dh) || -# endif - !ENGINE_set_destroy_function(e, atalla_destroy) || - !ENGINE_set_init_function(e, atalla_init) || - !ENGINE_set_finish_function(e, atalla_finish) || - !ENGINE_set_ctrl_function(e, atalla_ctrl) || - !ENGINE_set_cmd_defns(e, atalla_cmd_defns)) - return 0; - -# ifndef OPENSSL_NO_RSA - /* - * We know that the "PKCS1_SSLeay()" functions hook properly to the - * atalla-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(); - atalla_rsa.rsa_pub_enc = meth1->rsa_pub_enc; - atalla_rsa.rsa_pub_dec = meth1->rsa_pub_dec; - atalla_rsa.rsa_priv_enc = meth1->rsa_priv_enc; - atalla_rsa.rsa_priv_dec = meth1->rsa_priv_dec; -# endif - -# ifndef OPENSSL_NO_DSA - /* - * Use the DSA_OpenSSL() method and just hook the mod_exp-ish bits. - */ - meth2 = DSA_OpenSSL(); - atalla_dsa.dsa_do_sign = meth2->dsa_do_sign; - atalla_dsa.dsa_sign_setup = meth2->dsa_sign_setup; - atalla_dsa.dsa_do_verify = meth2->dsa_do_verify; -# endif - -# ifndef OPENSSL_NO_DH - /* Much the same for Diffie-Hellman */ - meth3 = DH_OpenSSL(); - atalla_dh.generate_key = meth3->generate_key; - atalla_dh.compute_key = meth3->compute_key; -# endif - - /* Ensure the atalla error handling is set up */ - ERR_load_ATALLA_strings(); - return 1; -} - -# ifdef OPENSSL_NO_DYNAMIC_ENGINE -static ENGINE *engine_atalla(void) -{ - ENGINE *ret = ENGINE_new(); - if (!ret) - return NULL; - if (!bind_helper(ret)) { - ENGINE_free(ret); - return NULL; - } - return ret; -} - -void ENGINE_load_atalla(void) -{ - /* Copied from eng_[openssl|dyn].c */ - ENGINE *toadd = engine_atalla(); - if (!toadd) - return; - ENGINE_add(toadd); - ENGINE_free(toadd); - ERR_clear_error(); -} -# endif - -/* - * This is a process-global DSO handle used for loading and unloading the - * Atalla 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 *atalla_dso = NULL; - -/* - * These are the function pointers that are (un)set when the library has - * successfully (un)loaded. - */ -static tfnASI_GetHardwareConfig *p_Atalla_GetHardwareConfig = NULL; -static tfnASI_RSAPrivateKeyOpFn *p_Atalla_RSAPrivateKeyOpFn = NULL; -static tfnASI_GetPerformanceStatistics *p_Atalla_GetPerformanceStatistics = - NULL; - -/* - * These are the static string constants for the DSO file name and the - * function symbol names to bind to. Regrettably, the DSO name on *nix - * appears to be "atasi.so" rather than something more consistent like - * "libatasi.so". At the time of writing, I'm not sure what the file name on - * win32 is but clearly native name translation is not possible (eg - * libatasi.so on *nix, and atasi.dll on win32). For the purposes of testing, - * I have created a symbollic link called "libatasi.so" so that we can use - * native name-translation - a better solution will be needed. - */ -static const char *ATALLA_LIBNAME = NULL; -static const char *get_ATALLA_LIBNAME(void) -{ - if (ATALLA_LIBNAME) - return ATALLA_LIBNAME; - return "atasi"; -} - -static void free_ATALLA_LIBNAME(void) -{ - OPENSSL_free(ATALLA_LIBNAME); - ATALLA_LIBNAME = NULL; -} - -static long set_ATALLA_LIBNAME(const char *name) -{ - free_ATALLA_LIBNAME(); - return (((ATALLA_LIBNAME = BUF_strdup(name)) != NULL) ? 1 : 0); -} - -static const char *ATALLA_F1 = "ASI_GetHardwareConfig"; -static const char *ATALLA_F2 = "ASI_RSAPrivateKeyOpFn"; -static const char *ATALLA_F3 = "ASI_GetPerformanceStatistics"; - -/* Destructor (complements the "ENGINE_atalla()" constructor) */ -static int atalla_destroy(ENGINE *e) -{ - free_ATALLA_LIBNAME(); - /* - * Unload the atalla error strings so any error state including our - * functs or reasons won't lead to a segfault (they simply get displayed - * without corresponding string data because none will be found). - */ - ERR_unload_ATALLA_strings(); - return 1; -} - -/* (de)initialisation functions. */ -static int atalla_init(ENGINE *e) -{ - tfnASI_GetHardwareConfig *p1; - tfnASI_RSAPrivateKeyOpFn *p2; - tfnASI_GetPerformanceStatistics *p3; - /* - * Not sure of the origin of this magic value, but Ben's code had it and - * it seemed to have been working for a few people. :-) - */ - unsigned int config_buf[1024]; - - if (atalla_dso != NULL) { - ATALLAerr(ATALLA_F_ATALLA_INIT, ATALLA_R_ALREADY_LOADED); - goto err; - } - /* - * Attempt to load libatasi.so/atasi.dll/whatever. Needs to be changed - * unfortunately because the Atalla drivers don't have standard library - * names that can be platform-translated well. - */ - /* - * TODO: Work out how to actually map to the names the Atalla drivers - * really use - for now a symbollic link needs to be created on the host - * system from libatasi.so to atasi.so on unix variants. - */ - atalla_dso = DSO_load(NULL, get_ATALLA_LIBNAME(), NULL, 0); - if (atalla_dso == NULL) { - ATALLAerr(ATALLA_F_ATALLA_INIT, ATALLA_R_NOT_LOADED); - goto err; - } -#define BINDIT(t, name) (t *)DSO_bind_func(atalla_dso, name) - if ((p1 = BINDIT(tfnASI_GetHardwareConfig, ATALLA_F1)) == NULL - || (p2 = BINDIT(tfnASI_RSAPrivateKeyOpFn, ATALLA_F2)) == NULL - || (p3 = BINDIT(tfnASI_GetPerformanceStatistics, ATALLA_F3)) == NULL) { - ATALLAerr(ATALLA_F_ATALLA_INIT, ATALLA_R_NOT_LOADED); - goto err; - } - /* Copy the pointers */ - p_Atalla_GetHardwareConfig = p1; - p_Atalla_RSAPrivateKeyOpFn = p2; - p_Atalla_GetPerformanceStatistics = p3; - /* - * Perform a basic test to see if there's actually any unit running. - */ - if (p1(0L, config_buf) != 0) { - ATALLAerr(ATALLA_F_ATALLA_INIT, ATALLA_R_UNIT_FAILURE); - goto err; - } - /* Everything's fine. */ - return 1; - err: - DSO_free(atalla_dso); - atalla_dso = NULL; - p_Atalla_GetHardwareConfig = NULL; - p_Atalla_RSAPrivateKeyOpFn = NULL; - p_Atalla_GetPerformanceStatistics = NULL; - return 0; -} - -static int atalla_finish(ENGINE *e) -{ - free_ATALLA_LIBNAME(); - if (atalla_dso == NULL) { - ATALLAerr(ATALLA_F_ATALLA_FINISH, ATALLA_R_NOT_LOADED); - return 0; - } - if (!DSO_free(atalla_dso)) { - ATALLAerr(ATALLA_F_ATALLA_FINISH, ATALLA_R_UNIT_FAILURE); - return 0; - } - atalla_dso = NULL; - p_Atalla_GetHardwareConfig = NULL; - p_Atalla_RSAPrivateKeyOpFn = NULL; - p_Atalla_GetPerformanceStatistics = NULL; - return 1; -} - -static int atalla_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void)) -{ - int initialised = ((atalla_dso == NULL) ? 0 : 1); - switch (cmd) { - case ATALLA_CMD_SO_PATH: - if (p == NULL) { - ATALLAerr(ATALLA_F_ATALLA_CTRL, ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - if (initialised) { - ATALLAerr(ATALLA_F_ATALLA_CTRL, ATALLA_R_ALREADY_LOADED); - return 0; - } - return set_ATALLA_LIBNAME((const char *)p); - default: - break; - } - ATALLAerr(ATALLA_F_ATALLA_CTRL, ATALLA_R_CTRL_COMMAND_NOT_IMPLEMENTED); - return 0; -} - -static int atalla_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 - * Atalla 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; - RSAPrivateKey keydata; - int to_return, numbytes; - - modulus = exponent = argument = result = NULL; - to_return = 0; /* expect failure */ - - if (!atalla_dso) { - ATALLAerr(ATALLA_F_ATALLA_MOD_EXP, ATALLA_R_NOT_LOADED); - goto err; - } - /* 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) { - ATALLAerr(ATALLA_F_ATALLA_MOD_EXP, ATALLA_R_BN_CTX_FULL); - goto err; - } - if (!bn_wexpand(modulus, m->top) || !bn_wexpand(exponent, m->top) || - !bn_wexpand(argument, m->top) || !bn_wexpand(result, m->top)) { - ATALLAerr(ATALLA_F_ATALLA_MOD_EXP, ATALLA_R_BN_EXPAND_FAIL); - goto err; - } - /* Prepare the key-data */ - memset(&keydata, 0, sizeof(keydata)); - numbytes = BN_num_bytes(m); - memset(exponent->d, 0, numbytes); - memset(modulus->d, 0, numbytes); - BN_bn2bin(p, (unsigned char *)exponent->d + numbytes - BN_num_bytes(p)); - BN_bn2bin(m, (unsigned char *)modulus->d + numbytes - BN_num_bytes(m)); - keydata.privateExponent.data = (unsigned char *)exponent->d; - keydata.privateExponent.len = numbytes; - keydata.modulus.data = (unsigned char *)modulus->d; - keydata.modulus.len = numbytes; - /* Prepare the argument */ - memset(argument->d, 0, numbytes); - memset(result->d, 0, numbytes); - BN_bn2bin(a, (unsigned char *)argument->d + numbytes - BN_num_bytes(a)); - /* Perform the operation */ - if (p_Atalla_RSAPrivateKeyOpFn(&keydata, (unsigned char *)result->d, - (unsigned char *)argument->d, - keydata.modulus.len) != 0) { - ATALLAerr(ATALLA_F_ATALLA_MOD_EXP, ATALLA_R_REQUEST_FAILED); - goto err; - } - /* Convert the response */ - BN_bin2bn((unsigned char *)result->d, numbytes, r); - to_return = 1; - err: - BN_CTX_end(ctx); - return to_return; -} - -# ifndef OPENSSL_NO_RSA -static int atalla_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, - BN_CTX *ctx) -{ - int to_return = 0; - - if (!atalla_dso) { - ATALLAerr(ATALLA_F_ATALLA_RSA_MOD_EXP, ATALLA_R_NOT_LOADED); - goto err; - } - if (!rsa->d || !rsa->n) { - ATALLAerr(ATALLA_F_ATALLA_RSA_MOD_EXP, - ATALLA_R_MISSING_KEY_COMPONENTS); - goto err; - } - to_return = atalla_mod_exp(r0, I, rsa->d, rsa->n, ctx); - err: - return to_return; -} -# endif - -# ifndef OPENSSL_NO_DSA -/* - * This code was liberated and adapted from the commented-out code in - * dsa_ossl.c. Because of the unoptimised form of the Atalla acceleration (it - * doesn't have a CRT form for RSA), this function means that an Atalla - * system running with a DSA server certificate can handshake around 5 or 6 - * times faster/more than an equivalent system running with RSA. Just check - * out the "signs" statistics from the RSA and DSA parts of "openssl speed - * -engine atalla dsa1024 rsa1024". - */ -static int atalla_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1, - BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m, - BN_CTX *ctx, BN_MONT_CTX *in_mont) -{ - BIGNUM t; - int to_return = 0; - - BN_init(&t); - /* let rr = a1 ^ p1 mod m */ - if (!atalla_mod_exp(rr, a1, p1, m, ctx)) - goto end; - /* let t = a2 ^ p2 mod m */ - if (!atalla_mod_exp(&t, a2, p2, m, ctx)) - goto end; - /* let rr = rr * t mod m */ - if (!BN_mod_mul(rr, rr, &t, m, ctx)) - goto end; - to_return = 1; - end: - BN_free(&t); - return to_return; -} - -static int atalla_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a, - const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, - BN_MONT_CTX *m_ctx) -{ - return atalla_mod_exp(r, a, p, m, ctx); -} -# endif - -# ifndef OPENSSL_NO_RSA -/* This function is aliased to mod_exp (with the mont stuff dropped). */ -static int atalla_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx, - BN_MONT_CTX *m_ctx) -{ - return atalla_mod_exp(r, a, p, m, ctx); -} -# endif - -# ifndef OPENSSL_NO_DH -/* This function is aliased to mod_exp (with the dh and mont dropped). */ -static int atalla_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 atalla_mod_exp(r, a, p, m, ctx); -} -# endif - -/* - * This stuff is needed if this ENGINE is being compiled into a - * self-contained shared-library. - */ -# ifndef OPENSSL_NO_DYNAMIC_ENGINE -static int bind_fn(ENGINE *e, const char *id) -{ - if (id && (strcmp(id, engine_atalla_id) != 0)) - return 0; - if (!bind_helper(e)) - return 0; - return 1; -} - -IMPLEMENT_DYNAMIC_CHECK_FN() - IMPLEMENT_DYNAMIC_BIND_FN(bind_fn) -# endif /* OPENSSL_NO_DYNAMIC_ENGINE */ -# endif /* !OPENSSL_NO_HW_ATALLA */ -#endif /* !OPENSSL_NO_HW */ |