Home | History | Annotate | Download | only in dh
      1 /* ====================================================================
      2  * Copyright (c) 2011 The OpenSSL Project.  All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  *
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in
     13  *    the documentation and/or other materials provided with the
     14  *    distribution.
     15  *
     16  * 3. All advertising materials mentioning features or use of this
     17  *    software must display the following acknowledgment:
     18  *    "This product includes software developed by the OpenSSL Project
     19  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
     20  *
     21  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
     22  *    endorse or promote products derived from this software without
     23  *    prior written permission. For written permission, please contact
     24  *    licensing (at) OpenSSL.org.
     25  *
     26  * 5. Products derived from this software may not be called "OpenSSL"
     27  *    nor may "OpenSSL" appear in their names without prior written
     28  *    permission of the OpenSSL Project.
     29  *
     30  * 6. Redistributions of any form whatsoever must retain the following
     31  *    acknowledgment:
     32  *    "This product includes software developed by the OpenSSL Project
     33  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
     34  *
     35  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
     36  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     37  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     38  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
     39  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     40  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     41  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     42  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     43  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     44  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     45  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
     46  * OF THE POSSIBILITY OF SUCH DAMAGE.
     47  * ====================================================================
     48  *
     49  * This product includes cryptographic software written by Eric Young
     50  * (eay (at) cryptsoft.com).  This product includes software written by Tim
     51  * Hudson (tjh (at) cryptsoft.com). */
     52 
     53 #include <openssl/dh.h>
     54 
     55 #include <openssl/bn.h>
     56 
     57 #include "../fipsmodule/bn/internal.h"
     58 
     59 
     60 BIGNUM *BN_get_rfc3526_prime_1536(BIGNUM *ret) {
     61   static const BN_ULONG kPrime1536Data[] = {
     62       TOBN(0xffffffff, 0xffffffff), TOBN(0xf1746c08, 0xca237327),
     63       TOBN(0x670c354e, 0x4abc9804), TOBN(0x9ed52907, 0x7096966d),
     64       TOBN(0x1c62f356, 0x208552bb), TOBN(0x83655d23, 0xdca3ad96),
     65       TOBN(0x69163fa8, 0xfd24cf5f), TOBN(0x98da4836, 0x1c55d39a),
     66       TOBN(0xc2007cb8, 0xa163bf05), TOBN(0x49286651, 0xece45b3d),
     67       TOBN(0xae9f2411, 0x7c4b1fe6), TOBN(0xee386bfb, 0x5a899fa5),
     68       TOBN(0x0bff5cb6, 0xf406b7ed), TOBN(0xf44c42e9, 0xa637ed6b),
     69       TOBN(0xe485b576, 0x625e7ec6), TOBN(0x4fe1356d, 0x6d51c245),
     70       TOBN(0x302b0a6d, 0xf25f1437), TOBN(0xef9519b3, 0xcd3a431b),
     71       TOBN(0x514a0879, 0x8e3404dd), TOBN(0x020bbea6, 0x3b139b22),
     72       TOBN(0x29024e08, 0x8a67cc74), TOBN(0xc4c6628b, 0x80dc1cd1),
     73       TOBN(0xc90fdaa2, 0x2168c234), TOBN(0xffffffff, 0xffffffff),
     74   };
     75 
     76   static const BIGNUM kPrime1536BN = STATIC_BIGNUM(kPrime1536Data);
     77 
     78   BIGNUM *alloc = NULL;
     79   if (ret == NULL) {
     80     alloc = BN_new();
     81     if (alloc == NULL) {
     82       return NULL;
     83     }
     84     ret = alloc;
     85   }
     86 
     87   if (!BN_copy(ret, &kPrime1536BN)) {
     88     BN_free(alloc);
     89     return NULL;
     90   }
     91 
     92   return ret;
     93 }
     94