summaryrefslogtreecommitdiff
path: root/src/lib/libcrypto/bn/bn_mpi.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/libcrypto/bn/bn_mpi.c')
-rw-r--r--src/lib/libcrypto/bn/bn_mpi.c132
1 files changed, 0 insertions, 132 deletions
diff --git a/src/lib/libcrypto/bn/bn_mpi.c b/src/lib/libcrypto/bn/bn_mpi.c
deleted file mode 100644
index cf4c7d8d24..0000000000
--- a/src/lib/libcrypto/bn/bn_mpi.c
+++ /dev/null
@@ -1,132 +0,0 @@
1/* $OpenBSD: bn_mpi.c,v 1.7 2014/07/11 08:44:48 jsing Exp $ */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60
61#include <openssl/err.h>
62
63#include "bn_lcl.h"
64
65int
66BN_bn2mpi(const BIGNUM *a, unsigned char *d)
67{
68 int bits;
69 int num = 0;
70 int ext = 0;
71 long l;
72
73 bits = BN_num_bits(a);
74 num = (bits + 7) / 8;
75 if (bits > 0) {
76 ext = ((bits & 0x07) == 0);
77 }
78 if (d == NULL)
79 return (num + 4 + ext);
80
81 l = num + ext;
82 d[0] = (unsigned char)(l >> 24) & 0xff;
83 d[1] = (unsigned char)(l >> 16) & 0xff;
84 d[2] = (unsigned char)(l >> 8) & 0xff;
85 d[3] = (unsigned char)(l) & 0xff;
86 if (ext)
87 d[4] = 0;
88 num = BN_bn2bin(a, &(d[4 + ext]));
89 if (a->neg)
90 d[4] |= 0x80;
91 return (num + 4 + ext);
92}
93
94BIGNUM *
95BN_mpi2bn(const unsigned char *d, int n, BIGNUM *a)
96{
97 long len;
98 int neg = 0;
99
100 if (n < 4) {
101 BNerr(BN_F_BN_MPI2BN, BN_R_INVALID_LENGTH);
102 return (NULL);
103 }
104 len = ((long)d[0] << 24) | ((long)d[1] << 16) | ((int)d[2] << 8) |
105 (int)d[3];
106 if ((len + 4) != n) {
107 BNerr(BN_F_BN_MPI2BN, BN_R_ENCODING_ERROR);
108 return (NULL);
109 }
110
111 if (a == NULL)
112 a = BN_new();
113 if (a == NULL)
114 return (NULL);
115
116 if (len == 0) {
117 a->neg = 0;
118 a->top = 0;
119 return (a);
120 }
121 d += 4;
122 if ((*d) & 0x80)
123 neg = 1;
124 if (BN_bin2bn(d, (int)len, a) == NULL)
125 return (NULL);
126 a->neg = neg;
127 if (neg) {
128 BN_clear_bit(a, BN_num_bits(a) - 1);
129 }
130 bn_check_top(a);
131 return (a);
132}