Mercurial > projects > hoofbaby
comparison deps/Platinum/ThirdParty/Neptune/ThirdParty/axTLS/crypto/md2.c @ 0:3425707ddbf6
Initial import (hopefully this mercurial stuff works...)
author | fraserofthenight |
---|---|
date | Mon, 06 Jul 2009 08:06:28 -0700 |
parents | |
children |
comparison
equal
deleted
inserted
replaced
-1:000000000000 | 0:3425707ddbf6 |
---|---|
1 /* | |
2 * Copyright (c) 2007, Cameron Rich | |
3 * | |
4 * All rights reserved. | |
5 * | |
6 * Redistribution and use in source and binary forms, with or without | |
7 * modification, are permitted provided that the following conditions are met: | |
8 * | |
9 * * Redistributions of source code must retain the above copyright notice, | |
10 * this list of conditions and the following disclaimer. | |
11 * * Redistributions in binary form must reproduce the above copyright notice, | |
12 * this list of conditions and the following disclaimer in the documentation | |
13 * and/or other materials provided with the distribution. | |
14 * * Neither the name of the axTLS project nor the names of its contributors | |
15 * may be used to endorse or promote products derived from this software | |
16 * without specific prior written permission. | |
17 * | |
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | |
22 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
25 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
26 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 */ | |
30 | |
31 /* | |
32 * RFC 1115/1319 compliant MD2 implementation | |
33 * The MD2 algorithm was designed by Ron Rivest in 1989. | |
34 * | |
35 * http://www.ietf.org/rfc/rfc1115.txt | |
36 * http://www.ietf.org/rfc/rfc1319.txt | |
37 */ | |
38 | |
39 #include <string.h> | |
40 #include <stdio.h> | |
41 | |
42 #include "crypto.h" | |
43 | |
44 /** | |
45 * This code is only here to enable the verification of Verisign root | |
46 * certificates. So only enable it for verification mode. | |
47 */ | |
48 #ifdef CONFIG_SSL_CERT_VERIFICATION | |
49 | |
50 static const uint8_t PI_SUBST[256] = | |
51 { | |
52 0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, 0x3D, 0x36, | |
53 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13, 0x62, 0xA7, 0x05, 0xF3, | |
54 0xC0, 0xC7, 0x73, 0x8C, 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C, | |
55 0x82, 0xCA, 0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16, | |
56 0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12, 0xBE, 0x4E, | |
57 0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49, 0xA0, 0xFB, 0xF5, 0x8E, | |
58 0xBB, 0x2F, 0xEE, 0x7A, 0xA9, 0x68, 0x79, 0x91, 0x15, 0xB2, | |
59 0x07, 0x3F, 0x94, 0xC2, 0x10, 0x89, 0x0B, 0x22, 0x5F, 0x21, | |
60 0x80, 0x7F, 0x5D, 0x9A, 0x5A, 0x90, 0x32, 0x27, 0x35, 0x3E, | |
61 0xCC, 0xE7, 0xBF, 0xF7, 0x97, 0x03, 0xFF, 0x19, 0x30, 0xB3, | |
62 0x48, 0xA5, 0xB5, 0xD1, 0xD7, 0x5E, 0x92, 0x2A, 0xAC, 0x56, | |
63 0xAA, 0xC6, 0x4F, 0xB8, 0x38, 0xD2, 0x96, 0xA4, 0x7D, 0xB6, | |
64 0x76, 0xFC, 0x6B, 0xE2, 0x9C, 0x74, 0x04, 0xF1, 0x45, 0x9D, | |
65 0x70, 0x59, 0x64, 0x71, 0x87, 0x20, 0x86, 0x5B, 0xCF, 0x65, | |
66 0xE6, 0x2D, 0xA8, 0x02, 0x1B, 0x60, 0x25, 0xAD, 0xAE, 0xB0, | |
67 0xB9, 0xF6, 0x1C, 0x46, 0x61, 0x69, 0x34, 0x40, 0x7E, 0x0F, | |
68 0x55, 0x47, 0xA3, 0x23, 0xDD, 0x51, 0xAF, 0x3A, 0xC3, 0x5C, | |
69 0xF9, 0xCE, 0xBA, 0xC5, 0xEA, 0x26, 0x2C, 0x53, 0x0D, 0x6E, | |
70 0x85, 0x28, 0x84, 0x09, 0xD3, 0xDF, 0xCD, 0xF4, 0x41, 0x81, | |
71 0x4D, 0x52, 0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA, | |
72 0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A, 0x78, 0x88, | |
73 0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D, 0xE9, 0xCB, 0xD5, 0xFE, | |
74 0x3B, 0x00, 0x1D, 0x39, 0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58, | |
75 0xD0, 0xE4, 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A, | |
76 0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A, 0xDB, 0x99, | |
77 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14 | |
78 }; | |
79 | |
80 /* | |
81 * MD2 context setup | |
82 */ | |
83 EXP_FUNC void STDCALL MD2_Init(MD2_CTX *ctx) | |
84 { | |
85 memset(ctx, 0, sizeof *ctx); | |
86 } | |
87 | |
88 static void md2_process(MD2_CTX *ctx) | |
89 { | |
90 int i, j; | |
91 uint8_t t = 0; | |
92 | |
93 for (i = 0; i < 16; i++) | |
94 { | |
95 ctx->state[i + 16] = ctx->buffer[i]; | |
96 ctx->state[i + 32] = ctx->buffer[i] ^ ctx->state[i]; | |
97 } | |
98 | |
99 for (i = 0; i < 18; i++) | |
100 { | |
101 for (j = 0; j < 48; j++) | |
102 t = (ctx->state[j] ^= PI_SUBST[t]); | |
103 | |
104 t = (t + i) & 0xFF; | |
105 } | |
106 | |
107 t = ctx->cksum[15]; | |
108 | |
109 for (i = 0; i < 16; i++) | |
110 t = (ctx->cksum[i] ^= PI_SUBST[ctx->buffer[i] ^ t]); | |
111 } | |
112 | |
113 /* | |
114 * MD2 process buffer | |
115 */ | |
116 EXP_FUNC void STDCALL MD2_Update(MD2_CTX *ctx, const uint8_t *input, int ilen) | |
117 { | |
118 int fill; | |
119 | |
120 while (ilen > 0) | |
121 { | |
122 if (ctx->left + ilen > 16) | |
123 fill = 16 - ctx->left; | |
124 else | |
125 fill = ilen; | |
126 | |
127 memcpy(ctx->buffer + ctx->left, input, fill); | |
128 | |
129 ctx->left += fill; | |
130 input += fill; | |
131 ilen -= fill; | |
132 | |
133 if (ctx->left == 16) | |
134 { | |
135 ctx->left = 0; | |
136 md2_process(ctx); | |
137 } | |
138 } | |
139 } | |
140 | |
141 /* | |
142 * MD2 final digest | |
143 */ | |
144 EXP_FUNC void STDCALL MD2_Final(uint8_t *output, MD2_CTX *ctx) | |
145 { | |
146 int i; | |
147 uint8_t x; | |
148 | |
149 x = (uint8_t)(16 - ctx->left); | |
150 | |
151 for (i = ctx->left; i < 16; i++) | |
152 ctx->buffer[i] = x; | |
153 | |
154 md2_process(ctx); | |
155 | |
156 memcpy(ctx->buffer, ctx->cksum, 16); | |
157 md2_process(ctx); | |
158 | |
159 memcpy(output, ctx->state, 16); | |
160 } | |
161 | |
162 #endif |