From 8e32b76f8c63e27a8c61f3e7d76a05ce1f419061 Mon Sep 17 00:00:00 2001 From: cvs2svn Date: Mon, 22 Mar 2004 14:57:04 +0000 Subject: This commit was manufactured by cvs2git to create tag 'OPENBSD_3_5_BASE'. --- src/lib/libcrypto/dh/dh_key.c | 222 ------------------------------------------ 1 file changed, 222 deletions(-) delete mode 100644 src/lib/libcrypto/dh/dh_key.c (limited to 'src/lib/libcrypto/dh/dh_key.c') diff --git a/src/lib/libcrypto/dh/dh_key.c b/src/lib/libcrypto/dh/dh_key.c deleted file mode 100644 index 77f2f50b51..0000000000 --- a/src/lib/libcrypto/dh/dh_key.c +++ /dev/null @@ -1,222 +0,0 @@ -/* crypto/dh/dh_key.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 - -static int generate_key(DH *dh); -static int compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh); -static int dh_bn_mod_exp(const DH *dh, BIGNUM *r, - const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx, - BN_MONT_CTX *m_ctx); -static int dh_init(DH *dh); -static int dh_finish(DH *dh); - -int DH_generate_key(DH *dh) - { - return dh->meth->generate_key(dh); - } - -int DH_compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh) - { - return dh->meth->compute_key(key, pub_key, dh); - } - -static DH_METHOD dh_ossl = { -"OpenSSL DH Method", -generate_key, -compute_key, -dh_bn_mod_exp, -dh_init, -dh_finish, -0, -NULL -}; - -const DH_METHOD *DH_OpenSSL(void) -{ - return &dh_ossl; -} - -static int generate_key(DH *dh) - { - int ok=0; - int generate_new_key=0; - unsigned l; - BN_CTX *ctx; - BN_MONT_CTX *mont; - BIGNUM *pub_key=NULL,*priv_key=NULL; - - ctx = BN_CTX_new(); - if (ctx == NULL) goto err; - - if (dh->priv_key == NULL) - { - priv_key=BN_new(); - if (priv_key == NULL) goto err; - generate_new_key=1; - } - else - priv_key=dh->priv_key; - - if (dh->pub_key == NULL) - { - pub_key=BN_new(); - if (pub_key == NULL) goto err; - } - else - pub_key=dh->pub_key; - - if ((dh->method_mont_p == NULL) && (dh->flags & DH_FLAG_CACHE_MONT_P)) - { - if ((dh->method_mont_p=(char *)BN_MONT_CTX_new()) != NULL) - if (!BN_MONT_CTX_set((BN_MONT_CTX *)dh->method_mont_p, - dh->p,ctx)) goto err; - } - mont=(BN_MONT_CTX *)dh->method_mont_p; - - if (generate_new_key) - { - l = dh->length ? dh->length : BN_num_bits(dh->p)-1; /* secret exponent length */ - if (!BN_rand(priv_key, l, 0, 0)) goto err; - } - if (!dh->meth->bn_mod_exp(dh, pub_key, dh->g, priv_key,dh->p,ctx,mont)) - goto err; - - dh->pub_key=pub_key; - dh->priv_key=priv_key; - ok=1; -err: - if (ok != 1) - DHerr(DH_F_DH_GENERATE_KEY,ERR_R_BN_LIB); - - if ((pub_key != NULL) && (dh->pub_key == NULL)) BN_free(pub_key); - if ((priv_key != NULL) && (dh->priv_key == NULL)) BN_free(priv_key); - BN_CTX_free(ctx); - return(ok); - } - -static int compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh) - { - BN_CTX *ctx; - BN_MONT_CTX *mont; - BIGNUM *tmp; - int ret= -1; - - ctx = BN_CTX_new(); - if (ctx == NULL) goto err; - BN_CTX_start(ctx); - tmp = BN_CTX_get(ctx); - - if (dh->priv_key == NULL) - { - DHerr(DH_F_DH_COMPUTE_KEY,DH_R_NO_PRIVATE_VALUE); - goto err; - } - if ((dh->method_mont_p == NULL) && (dh->flags & DH_FLAG_CACHE_MONT_P)) - { - if ((dh->method_mont_p=(char *)BN_MONT_CTX_new()) != NULL) - if (!BN_MONT_CTX_set((BN_MONT_CTX *)dh->method_mont_p, - dh->p,ctx)) goto err; - } - - mont=(BN_MONT_CTX *)dh->method_mont_p; - if (!dh->meth->bn_mod_exp(dh, tmp, pub_key, dh->priv_key,dh->p,ctx,mont)) - { - DHerr(DH_F_DH_COMPUTE_KEY,ERR_R_BN_LIB); - goto err; - } - - ret=BN_bn2bin(tmp,key); -err: - BN_CTX_end(ctx); - BN_CTX_free(ctx); - return(ret); - } - -static int dh_bn_mod_exp(const DH *dh, BIGNUM *r, - const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx, - BN_MONT_CTX *m_ctx) - { - if (a->top == 1) - { - BN_ULONG A = a->d[0]; - return BN_mod_exp_mont_word(r,A,p,m,ctx,m_ctx); - } - else - return BN_mod_exp_mont(r,a,p,m,ctx,m_ctx); - } - - -static int dh_init(DH *dh) - { - dh->flags |= DH_FLAG_CACHE_MONT_P; - return(1); - } - -static int dh_finish(DH *dh) - { - if(dh->method_mont_p) - BN_MONT_CTX_free((BN_MONT_CTX *)dh->method_mont_p); - return(1); - } -- cgit v1.2.3-55-g6feb