diff options
Diffstat (limited to 'openssl/crypto/rsa/rsa_eng.c')
| -rw-r--r-- | openssl/crypto/rsa/rsa_eng.c | 348 |
1 files changed, 348 insertions, 0 deletions
diff --git a/openssl/crypto/rsa/rsa_eng.c b/openssl/crypto/rsa/rsa_eng.c new file mode 100644 index 000000000..383a7045b --- /dev/null +++ b/openssl/crypto/rsa/rsa_eng.c @@ -0,0 +1,348 @@ +/* crypto/rsa/rsa_lib.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * 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 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 acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS 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 AUTHOR OR 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. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include <openssl/crypto.h> +#include "cryptlib.h" +#include <openssl/lhash.h> +#include <openssl/bn.h> +#include <openssl/rsa.h> +#include <openssl/rand.h> +#ifndef OPENSSL_NO_ENGINE +#include <openssl/engine.h> +#endif + +const char RSA_version[]="RSA" OPENSSL_VERSION_PTEXT; + +static const RSA_METHOD *default_RSA_meth=NULL; + +RSA *RSA_new(void) + { + RSA *r=RSA_new_method(NULL); + + return r; + } + +void RSA_set_default_method(const RSA_METHOD *meth) + { +#ifdef OPENSSL_FIPS + if (FIPS_mode() && !(meth->flags & RSA_FLAG_FIPS_METHOD)) + { + RSAerr(RSA_F_RSA_SET_DEFAULT_METHOD, RSA_R_NON_FIPS_METHOD); + return; + } +#endif + default_RSA_meth = meth; + } + +const RSA_METHOD *RSA_get_default_method(void) + { + if (default_RSA_meth == NULL) + { +#ifdef RSA_NULL + default_RSA_meth=RSA_null_method(); +#else +#if 0 /* was: #ifdef RSAref */ + default_RSA_meth=RSA_PKCS1_RSAref(); +#else + default_RSA_meth=RSA_PKCS1_SSLeay(); +#endif +#endif + } + + return default_RSA_meth; + } + +const RSA_METHOD *RSA_get_method(const RSA *rsa) + { + return rsa->meth; + } + +int RSA_set_method(RSA *rsa, const RSA_METHOD *meth) + { + /* NB: The caller is specifically setting a method, so it's not up to us + * to deal with which ENGINE it comes from. */ + const RSA_METHOD *mtmp; +#ifdef OPENSSL_FIPS + if (FIPS_mode() && !(meth->flags & RSA_FLAG_FIPS_METHOD)) + { + RSAerr(RSA_F_RSA_SET_METHOD, RSA_R_NON_FIPS_METHOD); + return 0; + } +#endif + mtmp = rsa->meth; + if (mtmp->finish) mtmp->finish(rsa); +#ifndef OPENSSL_NO_ENGINE + if (rsa->engine) + { + ENGINE_finish(rsa->engine); + rsa->engine = NULL; + } +#endif + rsa->meth = meth; + if (meth->init) meth->init(rsa); + return 1; + } + +RSA *RSA_new_method(ENGINE *engine) + { + RSA *ret; + + ret=(RSA *)OPENSSL_malloc(sizeof(RSA)); + if (ret == NULL) + { + RSAerr(RSA_F_RSA_NEW_METHOD,ERR_R_MALLOC_FAILURE); + return NULL; + } + + ret->meth = RSA_get_default_method(); +#ifndef OPENSSL_NO_ENGINE + if (engine) + { + if (!ENGINE_init(engine)) + { + RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB); + OPENSSL_free(ret); + return NULL; + } + ret->engine = engine; + } + else + ret->engine = ENGINE_get_default_RSA(); + if(ret->engine) + { + ret->meth = ENGINE_get_RSA(ret->engine); + if(!ret->meth) + { + RSAerr(RSA_F_RSA_NEW_METHOD, + ERR_R_ENGINE_LIB); + ENGINE_finish(ret->engine); + OPENSSL_free(ret); + return NULL; + } + } +#endif +#ifdef OPENSSL_FIPS + if (FIPS_mode() && !(ret->meth->flags & RSA_FLAG_FIPS_METHOD)) + { + RSAerr(RSA_F_RSA_NEW_METHOD, RSA_R_NON_FIPS_METHOD); +#ifndef OPENSSL_NO_ENGINE + if (ret->engine) + ENGINE_finish(ret->engine); +#endif + OPENSSL_free(ret); + return NULL; + } +#endif + + ret->pad=0; + ret->version=0; + ret->n=NULL; + ret->e=NULL; + ret->d=NULL; + ret->p=NULL; + ret->q=NULL; + ret->dmp1=NULL; + ret->dmq1=NULL; + ret->iqmp=NULL; + ret->references=1; + ret->_method_mod_n=NULL; + ret->_method_mod_p=NULL; + ret->_method_mod_q=NULL; + ret->blinding=NULL; + ret->mt_blinding=NULL; + ret->bignum_data=NULL; + ret->flags=ret->meth->flags; + CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data); + if ((ret->meth->init != NULL) && !ret->meth->init(ret)) + { +#ifndef OPENSSL_NO_ENGINE + if (ret->engine) + ENGINE_finish(ret->engine); +#endif + CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data); + OPENSSL_free(ret); + ret=NULL; + } + return(ret); + } + +void RSA_free(RSA *r) + { + int i; + + if (r == NULL) return; + + i=CRYPTO_add(&r->references,-1,CRYPTO_LOCK_RSA); +#ifdef REF_PRINT + REF_PRINT("RSA",r); +#endif + if (i > 0) return; +#ifdef REF_CHECK + if (i < 0) + { + fprintf(stderr,"RSA_free, bad reference count\n"); + abort(); + } +#endif + + if (r->meth->finish) + r->meth->finish(r); +#ifndef OPENSSL_NO_ENGINE + if (r->engine) + ENGINE_finish(r->engine); +#endif + + CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, r, &r->ex_data); + + if (r->n != NULL) BN_clear_free(r->n); + if (r->e != NULL) BN_clear_free(r->e); + if (r->d != NULL) BN_clear_free(r->d); + if (r->p != NULL) BN_clear_free(r->p); + if (r->q != NULL) BN_clear_free(r->q); + if (r->dmp1 != NULL) BN_clear_free(r->dmp1); + if (r->dmq1 != NULL) BN_clear_free(r->dmq1); + if (r->iqmp != NULL) BN_clear_free(r->iqmp); + if (r->blinding != NULL) BN_BLINDING_free(r->blinding); + if (r->mt_blinding != NULL) BN_BLINDING_free(r->mt_blinding); + if (r->bignum_data != NULL) OPENSSL_free_locked(r->bignum_data); + OPENSSL_free(r); + } + +int RSA_up_ref(RSA *r) + { + int i = CRYPTO_add(&r->references, 1, CRYPTO_LOCK_RSA); +#ifdef REF_PRINT + REF_PRINT("RSA",r); +#endif +#ifdef REF_CHECK + if (i < 2) + { + fprintf(stderr, "RSA_up_ref, bad reference count\n"); + abort(); + } +#endif + return ((i > 1) ? 1 : 0); + } + +int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, + CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) + { + return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_RSA, argl, argp, + new_func, dup_func, free_func); + } + +int RSA_set_ex_data(RSA *r, int idx, void *arg) + { + return(CRYPTO_set_ex_data(&r->ex_data,idx,arg)); + } + +void *RSA_get_ex_data(const RSA *r, int idx) + { + return(CRYPTO_get_ex_data(&r->ex_data,idx)); + } + +int RSA_flags(const RSA *r) + { + return((r == NULL)?0:r->meth->flags); + } + +int RSA_memory_lock(RSA *r) + { + int i,j,k,off; + char *p; + BIGNUM *bn,**t[6],*b; + BN_ULONG *ul; + + if (r->d == NULL) return(1); + t[0]= &r->d; + t[1]= &r->p; + t[2]= &r->q; + t[3]= &r->dmp1; + t[4]= &r->dmq1; + t[5]= &r->iqmp; + k=sizeof(BIGNUM)*6; + off=k/sizeof(BN_ULONG)+1; + j=1; + for (i=0; i<6; i++) + j+= (*t[i])->top; + if ((p=OPENSSL_malloc_locked((off+j)*sizeof(BN_ULONG))) == NULL) + { + RSAerr(RSA_F_RSA_MEMORY_LOCK,ERR_R_MALLOC_FAILURE); + return(0); + } + bn=(BIGNUM *)p; + ul=(BN_ULONG *)&(p[off]); + for (i=0; i<6; i++) + { + b= *(t[i]); + *(t[i])= &(bn[i]); + memcpy((char *)&(bn[i]),(char *)b,sizeof(BIGNUM)); + bn[i].flags=BN_FLG_STATIC_DATA; + bn[i].d=ul; + memcpy((char *)ul,b->d,sizeof(BN_ULONG)*b->top); + ul+=b->top; + BN_clear_free(b); + } + + /* I should fix this so it can still be done */ + r->flags&= ~(RSA_FLAG_CACHE_PRIVATE|RSA_FLAG_CACHE_PUBLIC); + + r->bignum_data=p; + return(1); + } |