diff options
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/bn/bn_mpi.c')
| -rw-r--r-- | Cryptlib/OpenSSL/crypto/bn/bn_mpi.c | 88 |
1 files changed, 65 insertions, 23 deletions
diff --git a/Cryptlib/OpenSSL/crypto/bn/bn_mpi.c b/Cryptlib/OpenSSL/crypto/bn/bn_mpi.c index 043e21d2..3bd40bbd 100644 --- a/Cryptlib/OpenSSL/crypto/bn/bn_mpi.c +++ b/Cryptlib/OpenSSL/crypto/bn/bn_mpi.c @@ -1,14 +1,63 @@ -/* - * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. +/* crypto/bn/bn_mpi.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. * - * Licensed under the OpenSSL license (the "License"). You may not use - * this file except in compliance with the License. You can obtain a copy - * in the file LICENSE in the source distribution or at - * https://www.openssl.org/source/license.html + * 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 "internal/cryptlib.h" +#include "cryptlib.h" #include "bn_lcl.h" int BN_bn2mpi(const BIGNUM *a, unsigned char *d) @@ -39,48 +88,41 @@ int BN_bn2mpi(const BIGNUM *a, unsigned char *d) return (num + 4 + ext); } -BIGNUM *BN_mpi2bn(const unsigned char *d, int n, BIGNUM *ain) +BIGNUM *BN_mpi2bn(const unsigned char *d, int n, BIGNUM *a) { long len; int neg = 0; - BIGNUM *a = NULL; if (n < 4) { BNerr(BN_F_BN_MPI2BN, BN_R_INVALID_LENGTH); - return NULL; + return (NULL); } len = ((long)d[0] << 24) | ((long)d[1] << 16) | ((int)d[2] << 8) | (int) d[3]; if ((len + 4) != n) { BNerr(BN_F_BN_MPI2BN, BN_R_ENCODING_ERROR); - return NULL; + return (NULL); } - if (ain == NULL) + if (a == NULL) a = BN_new(); - else - a = ain; - if (a == NULL) - return NULL; + return (NULL); if (len == 0) { a->neg = 0; a->top = 0; - return a; + return (a); } d += 4; if ((*d) & 0x80) neg = 1; - if (BN_bin2bn(d, (int)len, a) == NULL) { - if (ain == NULL) - BN_free(a); - return NULL; - } + if (BN_bin2bn(d, (int)len, a) == NULL) + return (NULL); a->neg = neg; if (neg) { BN_clear_bit(a, BN_num_bits(a) - 1); } bn_check_top(a); - return a; + return (a); } |