diff options
Diffstat (limited to 'openssl/engines/e_gmp.c')
| -rw-r--r-- | openssl/engines/e_gmp.c | 718 |
1 files changed, 365 insertions, 353 deletions
diff --git a/openssl/engines/e_gmp.c b/openssl/engines/e_gmp.c index a3d47151e..de5f9c0d3 100644 --- a/openssl/engines/e_gmp.c +++ b/openssl/engines/e_gmp.c @@ -1,6 +1,7 @@ /* crypto/engine/e_gmp.c */ -/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL - * project 2003. +/* + * Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL project + * 2003. */ /* ==================================================================== * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved. @@ -10,7 +11,7 @@ * are met: * * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. + * 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 @@ -56,13 +57,16 @@ * */ -/* This engine is not (currently) compiled in by default. Do enable it, - * reconfigure OpenSSL with "enable-gmp -lgmp". The GMP libraries and - * headers must reside in one of the paths searched by the compiler/linker, - * otherwise paths must be specified - eg. try configuring with - * "enable-gmp -I<includepath> -L<libpath> -lgmp". YMMV. */ +/* + * This engine is not (currently) compiled in by default. Do enable it, + * reconfigure OpenSSL with "enable-gmp -lgmp". The GMP libraries and headers + * must reside in one of the paths searched by the compiler/linker, otherwise + * paths must be specified - eg. try configuring with "enable-gmp + * -I<includepath> -L<libpath> -lgmp". YMMV. + */ -/* As for what this does - it's a largely unoptimised implementation of an +/*- + * As for what this does - it's a largely unoptimised implementation of an * ENGINE that uses the GMP library to perform RSA private key operations. To * obtain more information about what "unoptimised" means, see my original mail * on the subject (though ignore the build instructions which have since @@ -86,395 +90,403 @@ #include <openssl/buffer.h> #include <openssl/engine.h> #ifndef OPENSSL_NO_RSA -#include <openssl/rsa.h> +# include <openssl/rsa.h> #endif #include <openssl/bn.h> #ifndef OPENSSL_NO_HW -#ifndef OPENSSL_NO_GMP +# ifndef OPENSSL_NO_GMP -#include <gmp.h> +# include <gmp.h> -#define E_GMP_LIB_NAME "gmp engine" -#include "e_gmp_err.c" +# define E_GMP_LIB_NAME "gmp engine" +# include "e_gmp_err.c" static int e_gmp_destroy(ENGINE *e); static int e_gmp_init(ENGINE *e); static int e_gmp_finish(ENGINE *e); -static int e_gmp_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void)); +static int e_gmp_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void)); -#ifndef OPENSSL_NO_RSA +# ifndef OPENSSL_NO_RSA /* RSA stuff */ -static int e_gmp_rsa_mod_exp(BIGNUM *r, const BIGNUM *I, RSA *rsa, BN_CTX *ctx); +static int e_gmp_rsa_mod_exp(BIGNUM *r, const BIGNUM *I, RSA *rsa, + BN_CTX *ctx); static int e_gmp_rsa_finish(RSA *r); -#endif +# endif /* The definitions for control commands specific to this engine */ -/* #define E_GMP_CMD_SO_PATH ENGINE_CMD_BASE */ +/* #define E_GMP_CMD_SO_PATH ENGINE_CMD_BASE */ static const ENGINE_CMD_DEFN e_gmp_cmd_defns[] = { -#if 0 - {E_GMP_CMD_SO_PATH, - "SO_PATH", - "Specifies the path to the 'e_gmp' shared library", - ENGINE_CMD_FLAG_STRING}, -#endif - {0, NULL, NULL, 0} - }; - -#ifndef OPENSSL_NO_RSA +# if 0 + {E_GMP_CMD_SO_PATH, + "SO_PATH", + "Specifies the path to the 'e_gmp' shared library", + ENGINE_CMD_FLAG_STRING}, +# endif + {0, NULL, NULL, 0} +}; + +# ifndef OPENSSL_NO_RSA /* Our internal RSA_METHOD that we provide pointers to */ -static RSA_METHOD e_gmp_rsa = - { - "GMP RSA method", - NULL, - NULL, - NULL, - NULL, - e_gmp_rsa_mod_exp, - NULL, - NULL, - e_gmp_rsa_finish, - /* These flags initialise montgomery crud that GMP ignores, however it - * makes sure the public key ops (which are done in openssl) don't seem - * *slower* than usual :-) */ - RSA_FLAG_CACHE_PUBLIC|RSA_FLAG_CACHE_PRIVATE, - NULL, - NULL, - NULL - }; -#endif +static RSA_METHOD e_gmp_rsa = { + "GMP RSA method", + NULL, + NULL, + NULL, + NULL, + e_gmp_rsa_mod_exp, + NULL, + NULL, + e_gmp_rsa_finish, + /* + * These flags initialise montgomery crud that GMP ignores, however it + * makes sure the public key ops (which are done in openssl) don't seem + * *slower* than usual :-) + */ + RSA_FLAG_CACHE_PUBLIC | RSA_FLAG_CACHE_PRIVATE, + NULL, + NULL, + NULL +}; +# endif /* Constants used when creating the ENGINE */ static const char *engine_e_gmp_id = "gmp"; static const char *engine_e_gmp_name = "GMP engine support"; -/* This internal function is used by ENGINE_gmp() and possibly by the - * "dynamic" ENGINE support too */ +/* + * This internal function is used by ENGINE_gmp() and possibly by the + * "dynamic" ENGINE support too + */ static int bind_helper(ENGINE *e) - { -#ifndef OPENSSL_NO_RSA - const RSA_METHOD *meth1; -#endif - if(!ENGINE_set_id(e, engine_e_gmp_id) || - !ENGINE_set_name(e, engine_e_gmp_name) || -#ifndef OPENSSL_NO_RSA - !ENGINE_set_RSA(e, &e_gmp_rsa) || -#endif - !ENGINE_set_destroy_function(e, e_gmp_destroy) || - !ENGINE_set_init_function(e, e_gmp_init) || - !ENGINE_set_finish_function(e, e_gmp_finish) || - !ENGINE_set_ctrl_function(e, e_gmp_ctrl) || - !ENGINE_set_cmd_defns(e, e_gmp_cmd_defns)) - return 0; - -#ifndef OPENSSL_NO_RSA - meth1 = RSA_PKCS1_SSLeay(); - e_gmp_rsa.rsa_pub_enc = meth1->rsa_pub_enc; - e_gmp_rsa.rsa_pub_dec = meth1->rsa_pub_dec; - e_gmp_rsa.rsa_priv_enc = meth1->rsa_priv_enc; - e_gmp_rsa.rsa_priv_dec = meth1->rsa_priv_dec; - e_gmp_rsa.bn_mod_exp = meth1->bn_mod_exp; -#endif - - /* Ensure the e_gmp error handling is set up */ - ERR_load_GMP_strings(); - return 1; - } +{ +# ifndef OPENSSL_NO_RSA + const RSA_METHOD *meth1; +# endif + if (!ENGINE_set_id(e, engine_e_gmp_id) || + !ENGINE_set_name(e, engine_e_gmp_name) || +# ifndef OPENSSL_NO_RSA + !ENGINE_set_RSA(e, &e_gmp_rsa) || +# endif + !ENGINE_set_destroy_function(e, e_gmp_destroy) || + !ENGINE_set_init_function(e, e_gmp_init) || + !ENGINE_set_finish_function(e, e_gmp_finish) || + !ENGINE_set_ctrl_function(e, e_gmp_ctrl) || + !ENGINE_set_cmd_defns(e, e_gmp_cmd_defns)) + return 0; + +# ifndef OPENSSL_NO_RSA + meth1 = RSA_PKCS1_SSLeay(); + e_gmp_rsa.rsa_pub_enc = meth1->rsa_pub_enc; + e_gmp_rsa.rsa_pub_dec = meth1->rsa_pub_dec; + e_gmp_rsa.rsa_priv_enc = meth1->rsa_priv_enc; + e_gmp_rsa.rsa_priv_dec = meth1->rsa_priv_dec; + e_gmp_rsa.bn_mod_exp = meth1->bn_mod_exp; +# endif + + /* Ensure the e_gmp error handling is set up */ + ERR_load_GMP_strings(); + return 1; +} static ENGINE *engine_gmp(void) - { - ENGINE *ret = ENGINE_new(); - if(!ret) - return NULL; - if(!bind_helper(ret)) - { - ENGINE_free(ret); - return NULL; - } - return ret; - } +{ + ENGINE *ret = ENGINE_new(); + if (!ret) + return NULL; + if (!bind_helper(ret)) { + ENGINE_free(ret); + return NULL; + } + return ret; +} void ENGINE_load_gmp(void) - { - /* Copied from eng_[openssl|dyn].c */ - ENGINE *toadd = engine_gmp(); - if(!toadd) return; - ENGINE_add(toadd); - ENGINE_free(toadd); - ERR_clear_error(); - } - -#ifndef OPENSSL_NO_RSA +{ + /* Copied from eng_[openssl|dyn].c */ + ENGINE *toadd = engine_gmp(); + if (!toadd) + return; + ENGINE_add(toadd); + ENGINE_free(toadd); + ERR_clear_error(); +} + +# ifndef OPENSSL_NO_RSA /* Used to attach our own key-data to an RSA structure */ static int hndidx_rsa = -1; -#endif +# endif static int e_gmp_destroy(ENGINE *e) - { - ERR_unload_GMP_strings(); - return 1; - } +{ + ERR_unload_GMP_strings(); + return 1; +} /* (de)initialisation functions. */ static int e_gmp_init(ENGINE *e) - { -#ifndef OPENSSL_NO_RSA - if (hndidx_rsa == -1) - hndidx_rsa = RSA_get_ex_new_index(0, - "GMP-based RSA key handle", - NULL, NULL, NULL); -#endif - if (hndidx_rsa == -1) - return 0; - return 1; - } +{ +# ifndef OPENSSL_NO_RSA + if (hndidx_rsa == -1) + hndidx_rsa = RSA_get_ex_new_index(0, + "GMP-based RSA key handle", + NULL, NULL, NULL); +# endif + if (hndidx_rsa == -1) + return 0; + return 1; +} static int e_gmp_finish(ENGINE *e) - { - return 1; - } - -static int e_gmp_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void)) - { - int to_return = 1; - - switch(cmd) - { -#if 0 - case E_GMP_CMD_SO_PATH: - /* ... */ -#endif - /* The command isn't understood by this engine */ - default: - GMPerr(GMP_F_E_GMP_CTRL, - GMP_R_CTRL_COMMAND_NOT_IMPLEMENTED); - to_return = 0; - break; - } - - return to_return; - } - - -/* Most often limb sizes will be the same. If not, we use hex conversion - * which is neat, but extremely inefficient. */ +{ + return 1; +} + +static int e_gmp_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void)) +{ + int to_return = 1; + + switch (cmd) { +# if 0 + case E_GMP_CMD_SO_PATH: + /* ... */ +# endif + /* The command isn't understood by this engine */ + default: + GMPerr(GMP_F_E_GMP_CTRL, GMP_R_CTRL_COMMAND_NOT_IMPLEMENTED); + to_return = 0; + break; + } + + return to_return; +} + +/* + * Most often limb sizes will be the same. If not, we use hex conversion + * which is neat, but extremely inefficient. + */ static int bn2gmp(const BIGNUM *bn, mpz_t g) - { - bn_check_top(bn); - if(((sizeof(bn->d[0]) * 8) == GMP_NUMB_BITS) && - (BN_BITS2 == GMP_NUMB_BITS)) - { - /* The common case */ - if(!_mpz_realloc (g, bn->top)) - return 0; - memcpy(&g->_mp_d[0], &bn->d[0], bn->top * sizeof(bn->d[0])); - g->_mp_size = bn->top; - if(bn->neg) - g->_mp_size = -g->_mp_size; - return 1; - } - else - { - int toret; - char *tmpchar = BN_bn2hex(bn); - if(!tmpchar) return 0; - toret = (mpz_set_str(g, tmpchar, 16) == 0 ? 1 : 0); - OPENSSL_free(tmpchar); - return toret; - } - } +{ + bn_check_top(bn); + if (((sizeof(bn->d[0]) * 8) == GMP_NUMB_BITS) && + (BN_BITS2 == GMP_NUMB_BITS)) { + /* The common case */ + if (!_mpz_realloc(g, bn->top)) + return 0; + memcpy(&g->_mp_d[0], &bn->d[0], bn->top * sizeof(bn->d[0])); + g->_mp_size = bn->top; + if (bn->neg) + g->_mp_size = -g->_mp_size; + return 1; + } else { + int toret; + char *tmpchar = BN_bn2hex(bn); + if (!tmpchar) + return 0; + toret = (mpz_set_str(g, tmpchar, 16) == 0 ? 1 : 0); + OPENSSL_free(tmpchar); + return toret; + } +} static int gmp2bn(mpz_t g, BIGNUM *bn) - { - if(((sizeof(bn->d[0]) * 8) == GMP_NUMB_BITS) && - (BN_BITS2 == GMP_NUMB_BITS)) - { - /* The common case */ - int s = (g->_mp_size >= 0) ? g->_mp_size : -g->_mp_size; - BN_zero(bn); - if(bn_expand2 (bn, s) == NULL) - return 0; - bn->top = s; - memcpy(&bn->d[0], &g->_mp_d[0], s * sizeof(bn->d[0])); - bn_correct_top(bn); - bn->neg = g->_mp_size >= 0 ? 0 : 1; - return 1; - } - else - { - int toret; - char *tmpchar = OPENSSL_malloc(mpz_sizeinbase(g, 16) + 10); - if(!tmpchar) return 0; - mpz_get_str(tmpchar, 16, g); - toret = BN_hex2bn(&bn, tmpchar); - OPENSSL_free(tmpchar); - return toret; - } - } - -#ifndef OPENSSL_NO_RSA -typedef struct st_e_gmp_rsa_ctx - { - int public_only; - mpz_t n; - mpz_t d; - mpz_t e; - mpz_t p; - mpz_t q; - mpz_t dmp1; - mpz_t dmq1; - mpz_t iqmp; - mpz_t r0, r1, I0, m1; - } E_GMP_RSA_CTX; +{ + if (((sizeof(bn->d[0]) * 8) == GMP_NUMB_BITS) && + (BN_BITS2 == GMP_NUMB_BITS)) { + /* The common case */ + int s = (g->_mp_size >= 0) ? g->_mp_size : -g->_mp_size; + BN_zero(bn); + if (bn_expand2(bn, s) == NULL) + return 0; + bn->top = s; + memcpy(&bn->d[0], &g->_mp_d[0], s * sizeof(bn->d[0])); + bn_correct_top(bn); + bn->neg = g->_mp_size >= 0 ? 0 : 1; + return 1; + } else { + int toret; + char *tmpchar = OPENSSL_malloc(mpz_sizeinbase(g, 16) + 10); + if (!tmpchar) + return 0; + mpz_get_str(tmpchar, 16, g); + toret = BN_hex2bn(&bn, tmpchar); + OPENSSL_free(tmpchar); + return toret; + } +} + +# ifndef OPENSSL_NO_RSA +typedef struct st_e_gmp_rsa_ctx { + int public_only; + mpz_t n; + mpz_t d; + mpz_t e; + mpz_t p; + mpz_t q; + mpz_t dmp1; + mpz_t dmq1; + mpz_t iqmp; + mpz_t r0, r1, I0, m1; +} E_GMP_RSA_CTX; static E_GMP_RSA_CTX *e_gmp_get_rsa(RSA *rsa) - { - E_GMP_RSA_CTX *hptr = RSA_get_ex_data(rsa, hndidx_rsa); - if(hptr) return hptr; - hptr = OPENSSL_malloc(sizeof(E_GMP_RSA_CTX)); - if(!hptr) return NULL; - /* These inits could probably be replaced by more intelligent - * mpz_init2() versions, to reduce malloc-thrashing. */ - mpz_init(hptr->n); - mpz_init(hptr->d); - mpz_init(hptr->e); - mpz_init(hptr->p); - mpz_init(hptr->q); - mpz_init(hptr->dmp1); - mpz_init(hptr->dmq1); - mpz_init(hptr->iqmp); - mpz_init(hptr->r0); - mpz_init(hptr->r1); - mpz_init(hptr->I0); - mpz_init(hptr->m1); - if(!bn2gmp(rsa->n, hptr->n) || !bn2gmp(rsa->e, hptr->e)) - goto err; - if(!rsa->p || !rsa->q || !rsa->d || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp) - { - hptr->public_only = 1; - return hptr; - } - if(!bn2gmp(rsa->d, hptr->d) || !bn2gmp(rsa->p, hptr->p) || - !bn2gmp(rsa->q, hptr->q) || !bn2gmp(rsa->dmp1, hptr->dmp1) || - !bn2gmp(rsa->dmq1, hptr->dmq1) || !bn2gmp(rsa->iqmp, hptr->iqmp)) - goto err; - hptr->public_only = 0; - RSA_set_ex_data(rsa, hndidx_rsa, hptr); - return hptr; -err: - mpz_clear(hptr->n); - mpz_clear(hptr->d); - mpz_clear(hptr->e); - mpz_clear(hptr->p); - mpz_clear(hptr->q); - mpz_clear(hptr->dmp1); - mpz_clear(hptr->dmq1); - mpz_clear(hptr->iqmp); - mpz_clear(hptr->r0); - mpz_clear(hptr->r1); - mpz_clear(hptr->I0); - mpz_clear(hptr->m1); - OPENSSL_free(hptr); - return NULL; - } +{ + E_GMP_RSA_CTX *hptr = RSA_get_ex_data(rsa, hndidx_rsa); + if (hptr) + return hptr; + hptr = OPENSSL_malloc(sizeof(E_GMP_RSA_CTX)); + if (!hptr) + return NULL; + /* + * These inits could probably be replaced by more intelligent mpz_init2() + * versions, to reduce malloc-thrashing. + */ + mpz_init(hptr->n); + mpz_init(hptr->d); + mpz_init(hptr->e); + mpz_init(hptr->p); + mpz_init(hptr->q); + mpz_init(hptr->dmp1); + mpz_init(hptr->dmq1); + mpz_init(hptr->iqmp); + mpz_init(hptr->r0); + mpz_init(hptr->r1); + mpz_init(hptr->I0); + mpz_init(hptr->m1); + if (!bn2gmp(rsa->n, hptr->n) || !bn2gmp(rsa->e, hptr->e)) + goto err; + if (!rsa->p || !rsa->q || !rsa->d || !rsa->dmp1 || !rsa->dmq1 + || !rsa->iqmp) { + hptr->public_only = 1; + return hptr; + } + if (!bn2gmp(rsa->d, hptr->d) || !bn2gmp(rsa->p, hptr->p) || + !bn2gmp(rsa->q, hptr->q) || !bn2gmp(rsa->dmp1, hptr->dmp1) || + !bn2gmp(rsa->dmq1, hptr->dmq1) || !bn2gmp(rsa->iqmp, hptr->iqmp)) + goto err; + hptr->public_only = 0; + RSA_set_ex_data(rsa, hndidx_rsa, hptr); + return hptr; + err: + mpz_clear(hptr->n); + mpz_clear(hptr->d); + mpz_clear(hptr->e); + mpz_clear(hptr->p); + mpz_clear(hptr->q); + mpz_clear(hptr->dmp1); + mpz_clear(hptr->dmq1); + mpz_clear(hptr->iqmp); + mpz_clear(hptr->r0); + mpz_clear(hptr->r1); + mpz_clear(hptr->I0); + mpz_clear(hptr->m1); + OPENSSL_free(hptr); + return NULL; +} static int e_gmp_rsa_finish(RSA *rsa) - { - E_GMP_RSA_CTX *hptr = RSA_get_ex_data(rsa, hndidx_rsa); - if(!hptr) return 0; - mpz_clear(hptr->n); - mpz_clear(hptr->d); - mpz_clear(hptr->e); - mpz_clear(hptr->p); - mpz_clear(hptr->q); - mpz_clear(hptr->dmp1); - mpz_clear(hptr->dmq1); - mpz_clear(hptr->iqmp); - mpz_clear(hptr->r0); - mpz_clear(hptr->r1); - mpz_clear(hptr->I0); - mpz_clear(hptr->m1); - OPENSSL_free(hptr); - RSA_set_ex_data(rsa, hndidx_rsa, NULL); - return 1; - } - -static int e_gmp_rsa_mod_exp(BIGNUM *r, const BIGNUM *I, RSA *rsa, BN_CTX *ctx) - { - E_GMP_RSA_CTX *hptr; - int to_return = 0; - - hptr = e_gmp_get_rsa(rsa); - if(!hptr) - { - GMPerr(GMP_F_E_GMP_RSA_MOD_EXP, - GMP_R_KEY_CONTEXT_ERROR); - return 0; - } - if(hptr->public_only) - { - GMPerr(GMP_F_E_GMP_RSA_MOD_EXP, - GMP_R_MISSING_KEY_COMPONENTS); - return 0; - } - - /* ugh!!! */ - if(!bn2gmp(I, hptr->I0)) - return 0; - - /* This is basically the CRT logic in crypto/rsa/rsa_eay.c reworded into - * GMP-speak. It may be that GMP's API facilitates cleaner formulations - * of this stuff, eg. better handling of negatives, or functions that - * combine operations. */ - - mpz_mod(hptr->r1, hptr->I0, hptr->q); - mpz_powm(hptr->m1, hptr->r1, hptr->dmq1, hptr->q); - - mpz_mod(hptr->r1, hptr->I0, hptr->p); - mpz_powm(hptr->r0, hptr->r1, hptr->dmp1, hptr->p); - - mpz_sub(hptr->r0, hptr->r0, hptr->m1); - - if(mpz_sgn(hptr->r0) < 0) - mpz_add(hptr->r0, hptr->r0, hptr->p); - mpz_mul(hptr->r1, hptr->r0, hptr->iqmp); - mpz_mod(hptr->r0, hptr->r1, hptr->p); - - if(mpz_sgn(hptr->r0) < 0) - mpz_add(hptr->r0, hptr->r0, hptr->p); - mpz_mul(hptr->r1, hptr->r0, hptr->q); - mpz_add(hptr->r0, hptr->r1, hptr->m1); - - /* ugh!!! */ - if(gmp2bn(hptr->r0, r)) - to_return = 1; - - return 1; - } -#endif - -#endif /* !OPENSSL_NO_GMP */ - -/* This stuff is needed if this ENGINE is being compiled into a self-contained - * shared-library. */ -#ifndef OPENSSL_NO_DYNAMIC_ENGINE +{ + E_GMP_RSA_CTX *hptr = RSA_get_ex_data(rsa, hndidx_rsa); + if (!hptr) + return 0; + mpz_clear(hptr->n); + mpz_clear(hptr->d); + mpz_clear(hptr->e); + mpz_clear(hptr->p); + mpz_clear(hptr->q); + mpz_clear(hptr->dmp1); + mpz_clear(hptr->dmq1); + mpz_clear(hptr->iqmp); + mpz_clear(hptr->r0); + mpz_clear(hptr->r1); + mpz_clear(hptr->I0); + mpz_clear(hptr->m1); + OPENSSL_free(hptr); + RSA_set_ex_data(rsa, hndidx_rsa, NULL); + return 1; +} + +static int e_gmp_rsa_mod_exp(BIGNUM *r, const BIGNUM *I, RSA *rsa, + BN_CTX *ctx) +{ + E_GMP_RSA_CTX *hptr; + int to_return = 0; + + hptr = e_gmp_get_rsa(rsa); + if (!hptr) { + GMPerr(GMP_F_E_GMP_RSA_MOD_EXP, GMP_R_KEY_CONTEXT_ERROR); + return 0; + } + if (hptr->public_only) { + GMPerr(GMP_F_E_GMP_RSA_MOD_EXP, GMP_R_MISSING_KEY_COMPONENTS); + return 0; + } + + /* ugh!!! */ + if (!bn2gmp(I, hptr->I0)) + return 0; + + /* + * This is basically the CRT logic in crypto/rsa/rsa_eay.c reworded into + * GMP-speak. It may be that GMP's API facilitates cleaner formulations + * of this stuff, eg. better handling of negatives, or functions that + * combine operations. + */ + + mpz_mod(hptr->r1, hptr->I0, hptr->q); + mpz_powm(hptr->m1, hptr->r1, hptr->dmq1, hptr->q); + + mpz_mod(hptr->r1, hptr->I0, hptr->p); + mpz_powm(hptr->r0, hptr->r1, hptr->dmp1, hptr->p); + + mpz_sub(hptr->r0, hptr->r0, hptr->m1); + + if (mpz_sgn(hptr->r0) < 0) + mpz_add(hptr->r0, hptr->r0, hptr->p); + mpz_mul(hptr->r1, hptr->r0, hptr->iqmp); + mpz_mod(hptr->r0, hptr->r1, hptr->p); + + if (mpz_sgn(hptr->r0) < 0) + mpz_add(hptr->r0, hptr->r0, hptr->p); + mpz_mul(hptr->r1, hptr->r0, hptr->q); + mpz_add(hptr->r0, hptr->r1, hptr->m1); + + /* ugh!!! */ + if (gmp2bn(hptr->r0, r)) + to_return = 1; + + return 1; +} +# endif + +# endif /* !OPENSSL_NO_GMP */ + +/* + * This stuff is needed if this ENGINE is being compiled into a + * self-contained shared-library. + */ +# ifndef OPENSSL_NO_DYNAMIC_ENGINE IMPLEMENT_DYNAMIC_CHECK_FN() -#ifndef OPENSSL_NO_GMP +# ifndef OPENSSL_NO_GMP static int bind_fn(ENGINE *e, const char *id) - { - if(id && (strcmp(id, engine_e_gmp_id) != 0)) - return 0; - if(!bind_helper(e)) - return 0; - return 1; - } +{ + if (id && (strcmp(id, engine_e_gmp_id) != 0)) + return 0; + if (!bind_helper(e)) + return 0; + return 1; +} + IMPLEMENT_DYNAMIC_BIND_FN(bind_fn) -#else +# else OPENSSL_EXPORT -int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns); + int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns); OPENSSL_EXPORT -int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { return 0; } -#endif -#endif /* !OPENSSL_NO_DYNAMIC_ENGINE */ - -#endif /* !OPENSSL_NO_HW */ + int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) +{ + return 0; +} +# endif +# endif /* !OPENSSL_NO_DYNAMIC_ENGINE */ + +#endif /* !OPENSSL_NO_HW */ |