From 690af28bdf827ab9c81648f507eb492c9076d5d3 Mon Sep 17 00:00:00 2001 From: cvs2svn Date: Wed, 25 Oct 2000 15:23:17 +0000 Subject: This commit was manufactured by cvs2git to create branch 'OPENBSD_2_8'. --- src/lib/libcrypto/rsa/rsa_eay.c | 491 ---------------------------------------- 1 file changed, 491 deletions(-) delete mode 100644 src/lib/libcrypto/rsa/rsa_eay.c (limited to 'src/lib/libcrypto/rsa/rsa_eay.c') diff --git a/src/lib/libcrypto/rsa/rsa_eay.c b/src/lib/libcrypto/rsa/rsa_eay.c deleted file mode 100644 index b7d2460754..0000000000 --- a/src/lib/libcrypto/rsa/rsa_eay.c +++ /dev/null @@ -1,491 +0,0 @@ -/* crypto/rsa/rsa_eay.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 -#include "cryptlib.h" -#include -#include -#include - -#ifndef RSA_NULL - -static int RSA_eay_public_encrypt(int flen, unsigned char *from, - unsigned char *to, RSA *rsa,int padding); -static int RSA_eay_private_encrypt(int flen, unsigned char *from, - unsigned char *to, RSA *rsa,int padding); -static int RSA_eay_public_decrypt(int flen, unsigned char *from, - unsigned char *to, RSA *rsa,int padding); -static int RSA_eay_private_decrypt(int flen, unsigned char *from, - unsigned char *to, RSA *rsa,int padding); -static int RSA_eay_mod_exp(BIGNUM *r0, BIGNUM *i, RSA *rsa); -static int RSA_eay_init(RSA *rsa); -static int RSA_eay_finish(RSA *rsa); -static RSA_METHOD rsa_pkcs1_eay_meth={ - "Eric Young's PKCS#1 RSA", - RSA_eay_public_encrypt, - RSA_eay_public_decrypt, - RSA_eay_private_encrypt, - RSA_eay_private_decrypt, - RSA_eay_mod_exp, - BN_mod_exp_mont, - RSA_eay_init, - RSA_eay_finish, - 0, - NULL, - }; - -RSA_METHOD *RSA_PKCS1_SSLeay(void) - { - return(&rsa_pkcs1_eay_meth); - } - -static int RSA_eay_public_encrypt(int flen, unsigned char *from, - unsigned char *to, RSA *rsa, int padding) - { - BIGNUM f,ret; - int i,j,k,num=0,r= -1; - unsigned char *buf=NULL; - BN_CTX *ctx=NULL; - - BN_init(&f); - BN_init(&ret); - if ((ctx=BN_CTX_new()) == NULL) goto err; - num=BN_num_bytes(rsa->n); - if ((buf=(unsigned char *)Malloc(num)) == NULL) - { - RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT,ERR_R_MALLOC_FAILURE); - goto err; - } - - switch (padding) - { - case RSA_PKCS1_PADDING: - i=RSA_padding_add_PKCS1_type_2(buf,num,from,flen); - break; -#ifndef NO_SHA - case RSA_PKCS1_OAEP_PADDING: - i=RSA_padding_add_PKCS1_OAEP(buf,num,from,flen,NULL,0); - break; -#endif - case RSA_SSLV23_PADDING: - i=RSA_padding_add_SSLv23(buf,num,from,flen); - break; - case RSA_NO_PADDING: - i=RSA_padding_add_none(buf,num,from,flen); - break; - default: - RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT,RSA_R_UNKNOWN_PADDING_TYPE); - goto err; - } - if (i <= 0) goto err; - - if (BN_bin2bn(buf,num,&f) == NULL) goto err; - - if ((rsa->_method_mod_n == NULL) && (rsa->flags & RSA_FLAG_CACHE_PUBLIC)) - { - if ((rsa->_method_mod_n=BN_MONT_CTX_new()) != NULL) - if (!BN_MONT_CTX_set(rsa->_method_mod_n,rsa->n,ctx)) - goto err; - } - - if (!rsa->meth->bn_mod_exp(&ret,&f,rsa->e,rsa->n,ctx, - rsa->_method_mod_n)) goto err; - - /* put in leading 0 bytes if the number is less than the - * length of the modulus */ - j=BN_num_bytes(&ret); - i=BN_bn2bin(&ret,&(to[num-j])); - for (k=0; k<(num-i); k++) - to[k]=0; - - r=num; -err: - if (ctx != NULL) BN_CTX_free(ctx); - BN_clear_free(&f); - BN_clear_free(&ret); - if (buf != NULL) - { - memset(buf,0,num); - Free(buf); - } - return(r); - } - -static int RSA_eay_private_encrypt(int flen, unsigned char *from, - unsigned char *to, RSA *rsa, int padding) - { - BIGNUM f,ret; - int i,j,k,num=0,r= -1; - unsigned char *buf=NULL; - BN_CTX *ctx=NULL; - - BN_init(&f); - BN_init(&ret); - - if ((ctx=BN_CTX_new()) == NULL) goto err; - num=BN_num_bytes(rsa->n); - if ((buf=(unsigned char *)Malloc(num)) == NULL) - { - RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,ERR_R_MALLOC_FAILURE); - goto err; - } - - switch (padding) - { - case RSA_PKCS1_PADDING: - i=RSA_padding_add_PKCS1_type_1(buf,num,from,flen); - break; - case RSA_NO_PADDING: - i=RSA_padding_add_none(buf,num,from,flen); - break; - case RSA_SSLV23_PADDING: - default: - RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,RSA_R_UNKNOWN_PADDING_TYPE); - goto err; - } - if (i <= 0) goto err; - - if (BN_bin2bn(buf,num,&f) == NULL) goto err; - - if ((rsa->flags & RSA_FLAG_BLINDING) && (rsa->blinding == NULL)) - RSA_blinding_on(rsa,ctx); - if (rsa->flags & RSA_FLAG_BLINDING) - if (!BN_BLINDING_convert(&f,rsa->blinding,ctx)) goto err; - - if ( (rsa->flags & RSA_FLAG_EXT_PKEY) || - ((rsa->p != NULL) && - (rsa->q != NULL) && - (rsa->dmp1 != NULL) && - (rsa->dmq1 != NULL) && - (rsa->iqmp != NULL)) ) - { if (!rsa->meth->rsa_mod_exp(&ret,&f,rsa)) goto err; } - else - { - if (!rsa->meth->bn_mod_exp(&ret,&f,rsa->d,rsa->n,ctx,NULL)) goto err; - } - - if (rsa->flags & RSA_FLAG_BLINDING) - if (!BN_BLINDING_invert(&ret,rsa->blinding,ctx)) goto err; - - /* put in leading 0 bytes if the number is less than the - * length of the modulus */ - j=BN_num_bytes(&ret); - i=BN_bn2bin(&ret,&(to[num-j])); - for (k=0; k<(num-i); k++) - to[k]=0; - - r=num; -err: - if (ctx != NULL) BN_CTX_free(ctx); - BN_clear_free(&ret); - BN_clear_free(&f); - if (buf != NULL) - { - memset(buf,0,num); - Free(buf); - } - return(r); - } - -static int RSA_eay_private_decrypt(int flen, unsigned char *from, - unsigned char *to, RSA *rsa, int padding) - { - BIGNUM f,ret; - int j,num=0,r= -1; - unsigned char *p; - unsigned char *buf=NULL; - BN_CTX *ctx=NULL; - - BN_init(&f); - BN_init(&ret); - ctx=BN_CTX_new(); - if (ctx == NULL) goto err; - - num=BN_num_bytes(rsa->n); - - if ((buf=(unsigned char *)Malloc(num)) == NULL) - { - RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,ERR_R_MALLOC_FAILURE); - goto err; - } - - /* This check was for equality but PGP does evil things - * and chops off the top '0' bytes */ - if (flen > num) - { - RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,RSA_R_DATA_GREATER_THAN_MOD_LEN); - goto err; - } - - /* make data into a big number */ - if (BN_bin2bn(from,(int)flen,&f) == NULL) goto err; - - if ((rsa->flags & RSA_FLAG_BLINDING) && (rsa->blinding == NULL)) - RSA_blinding_on(rsa,ctx); - if (rsa->flags & RSA_FLAG_BLINDING) - if (!BN_BLINDING_convert(&f,rsa->blinding,ctx)) goto err; - - /* do the decrypt */ - if ( (rsa->flags & RSA_FLAG_EXT_PKEY) || - ((rsa->p != NULL) && - (rsa->q != NULL) && - (rsa->dmp1 != NULL) && - (rsa->dmq1 != NULL) && - (rsa->iqmp != NULL)) ) - { if (!rsa->meth->rsa_mod_exp(&ret,&f,rsa)) goto err; } - else - { - if (!rsa->meth->bn_mod_exp(&ret,&f,rsa->d,rsa->n,ctx,NULL)) - goto err; - } - - if (rsa->flags & RSA_FLAG_BLINDING) - if (!BN_BLINDING_invert(&ret,rsa->blinding,ctx)) goto err; - - p=buf; - j=BN_bn2bin(&ret,p); /* j is only used with no-padding mode */ - - switch (padding) - { - case RSA_PKCS1_PADDING: - r=RSA_padding_check_PKCS1_type_2(to,num,buf,j,num); - break; -#ifndef NO_SHA - case RSA_PKCS1_OAEP_PADDING: - r=RSA_padding_check_PKCS1_OAEP(to,num,buf,j,num,NULL,0); - break; -#endif - case RSA_SSLV23_PADDING: - r=RSA_padding_check_SSLv23(to,num,buf,j,num); - break; - case RSA_NO_PADDING: - r=RSA_padding_check_none(to,num,buf,j,num); - break; - default: - RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,RSA_R_UNKNOWN_PADDING_TYPE); - goto err; - } - if (r < 0) - RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,RSA_R_PADDING_CHECK_FAILED); - -err: - if (ctx != NULL) BN_CTX_free(ctx); - BN_clear_free(&f); - BN_clear_free(&ret); - if (buf != NULL) - { - memset(buf,0,num); - Free(buf); - } - return(r); - } - -static int RSA_eay_public_decrypt(int flen, unsigned char *from, - unsigned char *to, RSA *rsa, int padding) - { - BIGNUM f,ret; - int i,num=0,r= -1; - unsigned char *p; - unsigned char *buf=NULL; - BN_CTX *ctx=NULL; - - BN_init(&f); - BN_init(&ret); - ctx=BN_CTX_new(); - if (ctx == NULL) goto err; - - num=BN_num_bytes(rsa->n); - buf=(unsigned char *)Malloc(num); - if (buf == NULL) - { - RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,ERR_R_MALLOC_FAILURE); - goto err; - } - - /* This check was for equality but PGP does evil things - * and chops off the top '0' bytes */ - if (flen > num) - { - RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_DATA_GREATER_THAN_MOD_LEN); - goto err; - } - - if (BN_bin2bn(from,flen,&f) == NULL) goto err; - /* do the decrypt */ - if ((rsa->_method_mod_n == NULL) && (rsa->flags & RSA_FLAG_CACHE_PUBLIC)) - { - if ((rsa->_method_mod_n=BN_MONT_CTX_new()) != NULL) - if (!BN_MONT_CTX_set(rsa->_method_mod_n,rsa->n,ctx)) - goto err; - } - - if (!rsa->meth->bn_mod_exp(&ret,&f,rsa->e,rsa->n,ctx, - rsa->_method_mod_n)) goto err; - - p=buf; - i=BN_bn2bin(&ret,p); - - switch (padding) - { - case RSA_PKCS1_PADDING: - r=RSA_padding_check_PKCS1_type_1(to,num,buf,i,num); - break; - case RSA_NO_PADDING: - r=RSA_padding_check_none(to,num,buf,i,num); - break; - default: - RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_UNKNOWN_PADDING_TYPE); - goto err; - } - if (r < 0) - RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_PADDING_CHECK_FAILED); - -err: - if (ctx != NULL) BN_CTX_free(ctx); - BN_clear_free(&f); - BN_clear_free(&ret); - if (buf != NULL) - { - memset(buf,0,num); - Free(buf); - } - return(r); - } - -static int RSA_eay_mod_exp(BIGNUM *r0, BIGNUM *I, RSA *rsa) - { - BIGNUM r1,m1; - int ret=0; - BN_CTX *ctx; - - if ((ctx=BN_CTX_new()) == NULL) goto err; - BN_init(&m1); - BN_init(&r1); - - if (rsa->flags & RSA_FLAG_CACHE_PRIVATE) - { - if (rsa->_method_mod_p == NULL) - { - if ((rsa->_method_mod_p=BN_MONT_CTX_new()) != NULL) - if (!BN_MONT_CTX_set(rsa->_method_mod_p,rsa->p, - ctx)) - goto err; - } - if (rsa->_method_mod_q == NULL) - { - if ((rsa->_method_mod_q=BN_MONT_CTX_new()) != NULL) - if (!BN_MONT_CTX_set(rsa->_method_mod_q,rsa->q, - ctx)) - goto err; - } - } - - if (!BN_mod(&r1,I,rsa->q,ctx)) goto err; - if (!rsa->meth->bn_mod_exp(&m1,&r1,rsa->dmq1,rsa->q,ctx, - rsa->_method_mod_q)) goto err; - - if (!BN_mod(&r1,I,rsa->p,ctx)) goto err; - if (!rsa->meth->bn_mod_exp(r0,&r1,rsa->dmp1,rsa->p,ctx, - rsa->_method_mod_p)) goto err; - - if (!BN_sub(r0,r0,&m1)) goto err; - /* This will help stop the size of r0 increasing, which does - * affect the multiply if it optimised for a power of 2 size */ - if (r0->neg) - if (!BN_add(r0,r0,rsa->p)) goto err; - - if (!BN_mul(&r1,r0,rsa->iqmp,ctx)) goto err; - if (!BN_mod(r0,&r1,rsa->p,ctx)) goto err; - /* If p < q it is occasionally possible for the correction of - * adding 'p' if r0 is negative above to leave the result still - * negative. This can break the private key operations: the following - * second correction should *always* correct this rare occurrence. - * This will *never* happen with OpenSSL generated keys because - * they ensure p > q [steve] - */ - if (r0->neg) - if (!BN_add(r0,r0,rsa->p)) goto err; - if (!BN_mul(&r1,r0,rsa->q,ctx)) goto err; - if (!BN_add(r0,&r1,&m1)) goto err; - - ret=1; -err: - BN_clear_free(&m1); - BN_clear_free(&r1); - BN_CTX_free(ctx); - return(ret); - } - -static int RSA_eay_init(RSA *rsa) - { - rsa->flags|=RSA_FLAG_CACHE_PUBLIC|RSA_FLAG_CACHE_PRIVATE; - return(1); - } - -static int RSA_eay_finish(RSA *rsa) - { - if (rsa->_method_mod_n != NULL) - BN_MONT_CTX_free(rsa->_method_mod_n); - if (rsa->_method_mod_p != NULL) - BN_MONT_CTX_free(rsa->_method_mod_p); - if (rsa->_method_mod_q != NULL) - BN_MONT_CTX_free(rsa->_method_mod_q); - return(1); - } - -#endif -- cgit v1.2.3-55-g6feb