X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/80e2389990082500d76eb566d4946be3e786c3ef..d8f41ccd20de16f8ebe2ccc84d47bf1cb2b26bbb:/Security/libsecurity_apple_csp/open_ssl/dh/dh_lib.c diff --git a/Security/libsecurity_apple_csp/open_ssl/dh/dh_lib.c b/Security/libsecurity_apple_csp/open_ssl/dh/dh_lib.c new file mode 100644 index 00000000..a9449da0 --- /dev/null +++ b/Security/libsecurity_apple_csp/open_ssl/dh/dh_lib.c @@ -0,0 +1,203 @@ +/* + * Copyright (c) 2000-2002,2011,2014 Apple Inc. All Rights Reserved. + * + * The contents of this file constitute Original Code as defined in and are + * subject to the Apple Public Source License Version 1.2 (the 'License'). + * You may not use this file except in compliance with the License. Please obtain + * a copy of the License at http://www.apple.com/publicsource and read it before + * using this file. + * + * This Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS + * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT + * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR + * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the + * specific language governing rights and limitations under the License. + */ + +/* crypto/dh/dh_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 +#include "cryptlib.h" +#include +#include + +const char *DH_version="Diffie-Hellman" OPENSSL_VERSION_PTEXT; + +static DH_METHOD *default_DH_method; +static int dh_meth_num = 0; +static STACK_OF(CRYPTO_EX_DATA_FUNCS) *dh_meth = NULL; + +void DH_set_default_method(DH_METHOD *meth) +{ + default_DH_method = meth; +} + +DH_METHOD *DH_get_default_method(void) +{ + if(!default_DH_method) default_DH_method = DH_OpenSSL(); + return default_DH_method; +} + +DH_METHOD *DH_set_method(DH *dh, DH_METHOD *meth) +{ + DH_METHOD *mtmp; + mtmp = dh->meth; + if (mtmp->finish) mtmp->finish(dh); + dh->meth = meth; + if (meth->init) meth->init(dh); + return mtmp; +} + +DH *DH_new(void) +{ + return DH_new_method(NULL); +} + +DH *DH_new_method(DH_METHOD *meth) + { + DH *ret; + ret=(DH *)Malloc(sizeof(DH)); + + if (ret == NULL) + { + DHerr(DH_F_DH_NEW,ERR_R_MALLOC_FAILURE); + return(NULL); + } + if(meth) ret->meth = meth; + else ret->meth = DH_get_default_method(); + ret->pad=0; + ret->version=0; + ret->p=NULL; + ret->g=NULL; + ret->length=0; + ret->pub_key=NULL; + ret->priv_key=NULL; + ret->q=NULL; + ret->j=NULL; + ret->seed = NULL; + ret->seedlen = 0; + ret->counter = NULL; + ret->method_mont_p=NULL; + ret->references = 1; + ret->flags=ret->meth->flags; + CRYPTO_new_ex_data(dh_meth,ret,&ret->ex_data); + if ((ret->meth->init != NULL) && !ret->meth->init(ret)) + { + CRYPTO_free_ex_data(dh_meth,ret,&ret->ex_data); + Free(ret); + ret=NULL; + } + return(ret); + } + +void DH_free(DH *r) + { + int i; + if(r == NULL) return; + i = CRYPTO_add(&r->references, -1, CRYPTO_LOCK_DH); +#ifdef REF_PRINT + REF_PRINT("DH",r); +#endif + if (i > 0) return; +#ifdef REF_CHECK + if (i < 0) + { + fprintf(stderr,"DH_free, bad reference count\n"); + abort(); + } +#endif + + if(r->meth->finish) r->meth->finish(r); + + CRYPTO_free_ex_data(dh_meth, r, &r->ex_data); + + if (r->p != NULL) BN_clear_free(r->p); + if (r->g != NULL) BN_clear_free(r->g); + if (r->q != NULL) BN_clear_free(r->q); + if (r->j != NULL) BN_clear_free(r->j); + if (r->seed) Free(r->seed); + if (r->counter != NULL) BN_clear_free(r->counter); + if (r->pub_key != NULL) BN_clear_free(r->pub_key); + if (r->priv_key != NULL) BN_clear_free(r->priv_key); + Free(r); + } + +int DH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, + CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) + { + dh_meth_num++; + return(CRYPTO_get_ex_new_index(dh_meth_num-1, + &dh_meth,argl,argp,new_func,dup_func,free_func)); + } + +int DH_set_ex_data(DH *d, int idx, void *arg) + { + return(CRYPTO_set_ex_data(&d->ex_data,idx,arg)); + } + +void *DH_get_ex_data(DH *d, int idx) + { + return(CRYPTO_get_ex_data(&d->ex_data,idx)); + } + +int DH_size(DH *dh) + { + return(BN_num_bytes(dh->p)); + }