FBI FRATER / Mbed 2 deprecated InetTest

Library for Bert van Dam's book "ARM MICROCONTROLLERS" For all chapters with internet.

Dependencies:   mbed

NetServices/lwip/netif/ppp/md5.c@0:4edb816d21e1, 2015-10-16 (annotated)

Committer:
ICTFBI
Date:
Fri Oct 16 14:28:26 2015 +0000
Revision:
0:4edb816d21e1
Pre-update 16-10-15

Who changed what in which revision?

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ICTFBI 0:4edb816d21e1 1 /*
ICTFBI 0:4edb816d21e1 2 ***********************************************************************
ICTFBI 0:4edb816d21e1 3 ** md5.c -- the source code for MD5 routines **
ICTFBI 0:4edb816d21e1 4 ** RSA Data Security, Inc. MD5 Message-Digest Algorithm **
ICTFBI 0:4edb816d21e1 5 ** Created: 2/17/90 RLR **
ICTFBI 0:4edb816d21e1 6 ** Revised: 1/91 SRD,AJ,BSK,JT Reference C ver., 7/10 constant corr. **
ICTFBI 0:4edb816d21e1 7 ***********************************************************************
ICTFBI 0:4edb816d21e1 8 */
ICTFBI 0:4edb816d21e1 9
ICTFBI 0:4edb816d21e1 10 /*
ICTFBI 0:4edb816d21e1 11 ***********************************************************************
ICTFBI 0:4edb816d21e1 12 ** Copyright (C) 1990, RSA Data Security, Inc. All rights reserved. **
ICTFBI 0:4edb816d21e1 13 ** **
ICTFBI 0:4edb816d21e1 14 ** License to copy and use this software is granted provided that **
ICTFBI 0:4edb816d21e1 15 ** it is identified as the "RSA Data Security, Inc. MD5 Message- **
ICTFBI 0:4edb816d21e1 16 ** Digest Algorithm" in all material mentioning or referencing this **
ICTFBI 0:4edb816d21e1 17 ** software or this function. **
ICTFBI 0:4edb816d21e1 18 ** **
ICTFBI 0:4edb816d21e1 19 ** License is also granted to make and use derivative works **
ICTFBI 0:4edb816d21e1 20 ** provided that such works are identified as "derived from the RSA **
ICTFBI 0:4edb816d21e1 21 ** Data Security, Inc. MD5 Message-Digest Algorithm" in all **
ICTFBI 0:4edb816d21e1 22 ** material mentioning or referencing the derived work. **
ICTFBI 0:4edb816d21e1 23 ** **
ICTFBI 0:4edb816d21e1 24 ** RSA Data Security, Inc. makes no representations concerning **
ICTFBI 0:4edb816d21e1 25 ** either the merchantability of this software or the suitability **
ICTFBI 0:4edb816d21e1 26 ** of this software for any particular purpose. It is provided "as **
ICTFBI 0:4edb816d21e1 27 ** is" without express or implied warranty of any kind. **
ICTFBI 0:4edb816d21e1 28 ** **
ICTFBI 0:4edb816d21e1 29 ** These notices must be retained in any copies of any part of this **
ICTFBI 0:4edb816d21e1 30 ** documentation and/or software. **
ICTFBI 0:4edb816d21e1 31 ***********************************************************************
ICTFBI 0:4edb816d21e1 32 */
ICTFBI 0:4edb816d21e1 33
ICTFBI 0:4edb816d21e1 34 #include "lwip/opt.h"
ICTFBI 0:4edb816d21e1 35
ICTFBI 0:4edb816d21e1 36 #if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
ICTFBI 0:4edb816d21e1 37
ICTFBI 0:4edb816d21e1 38 #if CHAP_SUPPORT || MD5_SUPPORT
ICTFBI 0:4edb816d21e1 39
ICTFBI 0:4edb816d21e1 40 #include "ppp.h"
ICTFBI 0:4edb816d21e1 41 #include "pppdebug.h"
ICTFBI 0:4edb816d21e1 42
ICTFBI 0:4edb816d21e1 43 #include "md5.h"
ICTFBI 0:4edb816d21e1 44
ICTFBI 0:4edb816d21e1 45 #include <string.h>
ICTFBI 0:4edb816d21e1 46
ICTFBI 0:4edb816d21e1 47 /*
ICTFBI 0:4edb816d21e1 48 ***********************************************************************
ICTFBI 0:4edb816d21e1 49 ** Message-digest routines: **
ICTFBI 0:4edb816d21e1 50 ** To form the message digest for a message M **
ICTFBI 0:4edb816d21e1 51 ** (1) Initialize a context buffer mdContext using MD5Init **
ICTFBI 0:4edb816d21e1 52 ** (2) Call MD5Update on mdContext and M **
ICTFBI 0:4edb816d21e1 53 ** (3) Call MD5Final on mdContext **
ICTFBI 0:4edb816d21e1 54 ** The message digest is now in mdContext->digest[0...15] **
ICTFBI 0:4edb816d21e1 55 ***********************************************************************
ICTFBI 0:4edb816d21e1 56 */
ICTFBI 0:4edb816d21e1 57
ICTFBI 0:4edb816d21e1 58 /* forward declaration */
ICTFBI 0:4edb816d21e1 59 static void Transform (u32_t *buf, u32_t *in);
ICTFBI 0:4edb816d21e1 60
ICTFBI 0:4edb816d21e1 61 static unsigned char PADDING[64] = {
ICTFBI 0:4edb816d21e1 62 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
ICTFBI 0:4edb816d21e1 63 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
ICTFBI 0:4edb816d21e1 64 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
ICTFBI 0:4edb816d21e1 65 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
ICTFBI 0:4edb816d21e1 66 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
ICTFBI 0:4edb816d21e1 67 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
ICTFBI 0:4edb816d21e1 68 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
ICTFBI 0:4edb816d21e1 69 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
ICTFBI 0:4edb816d21e1 70 };
ICTFBI 0:4edb816d21e1 71
ICTFBI 0:4edb816d21e1 72 /* F, G, H and I are basic MD5 functions */
ICTFBI 0:4edb816d21e1 73 #define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
ICTFBI 0:4edb816d21e1 74 #define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
ICTFBI 0:4edb816d21e1 75 #define H(x, y, z) ((x) ^ (y) ^ (z))
ICTFBI 0:4edb816d21e1 76 #define I(x, y, z) ((y) ^ ((x) | (~z)))
ICTFBI 0:4edb816d21e1 77
ICTFBI 0:4edb816d21e1 78 /* ROTATE_LEFT rotates x left n bits */
ICTFBI 0:4edb816d21e1 79 #define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
ICTFBI 0:4edb816d21e1 80
ICTFBI 0:4edb816d21e1 81 /* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4 */
ICTFBI 0:4edb816d21e1 82 /* Rotation is separate from addition to prevent recomputation */
ICTFBI 0:4edb816d21e1 83 #define FF(a, b, c, d, x, s, ac) \
ICTFBI 0:4edb816d21e1 84 {(a) += F ((b), (c), (d)) + (x) + (u32_t)(ac); \
ICTFBI 0:4edb816d21e1 85 (a) = ROTATE_LEFT ((a), (s)); \
ICTFBI 0:4edb816d21e1 86 (a) += (b); \
ICTFBI 0:4edb816d21e1 87 }
ICTFBI 0:4edb816d21e1 88 #define GG(a, b, c, d, x, s, ac) \
ICTFBI 0:4edb816d21e1 89 {(a) += G ((b), (c), (d)) + (x) + (u32_t)(ac); \
ICTFBI 0:4edb816d21e1 90 (a) = ROTATE_LEFT ((a), (s)); \
ICTFBI 0:4edb816d21e1 91 (a) += (b); \
ICTFBI 0:4edb816d21e1 92 }
ICTFBI 0:4edb816d21e1 93 #define HH(a, b, c, d, x, s, ac) \
ICTFBI 0:4edb816d21e1 94 {(a) += H ((b), (c), (d)) + (x) + (u32_t)(ac); \
ICTFBI 0:4edb816d21e1 95 (a) = ROTATE_LEFT ((a), (s)); \
ICTFBI 0:4edb816d21e1 96 (a) += (b); \
ICTFBI 0:4edb816d21e1 97 }
ICTFBI 0:4edb816d21e1 98 #define II(a, b, c, d, x, s, ac) \
ICTFBI 0:4edb816d21e1 99 {(a) += I ((b), (c), (d)) + (x) + (u32_t)(ac); \
ICTFBI 0:4edb816d21e1 100 (a) = ROTATE_LEFT ((a), (s)); \
ICTFBI 0:4edb816d21e1 101 (a) += (b); \
ICTFBI 0:4edb816d21e1 102 }
ICTFBI 0:4edb816d21e1 103
ICTFBI 0:4edb816d21e1 104 #ifdef __STDC__
ICTFBI 0:4edb816d21e1 105 #define UL(x) x##UL
ICTFBI 0:4edb816d21e1 106 #else
ICTFBI 0:4edb816d21e1 107 #ifdef WIN32
ICTFBI 0:4edb816d21e1 108 #define UL(x) x##UL
ICTFBI 0:4edb816d21e1 109 #else
ICTFBI 0:4edb816d21e1 110 #define UL(x) x
ICTFBI 0:4edb816d21e1 111 #endif
ICTFBI 0:4edb816d21e1 112 #endif
ICTFBI 0:4edb816d21e1 113
ICTFBI 0:4edb816d21e1 114 /* The routine MD5Init initializes the message-digest context
ICTFBI 0:4edb816d21e1 115 mdContext. All fields are set to zero.
ICTFBI 0:4edb816d21e1 116 */
ICTFBI 0:4edb816d21e1 117 void
ICTFBI 0:4edb816d21e1 118 MD5Init (MD5_CTX *mdContext)
ICTFBI 0:4edb816d21e1 119 {
ICTFBI 0:4edb816d21e1 120 mdContext->i[0] = mdContext->i[1] = (u32_t)0;
ICTFBI 0:4edb816d21e1 121
ICTFBI 0:4edb816d21e1 122 /* Load magic initialization constants. */
ICTFBI 0:4edb816d21e1 123 mdContext->buf[0] = (u32_t)0x67452301UL;
ICTFBI 0:4edb816d21e1 124 mdContext->buf[1] = (u32_t)0xefcdab89UL;
ICTFBI 0:4edb816d21e1 125 mdContext->buf[2] = (u32_t)0x98badcfeUL;
ICTFBI 0:4edb816d21e1 126 mdContext->buf[3] = (u32_t)0x10325476UL;
ICTFBI 0:4edb816d21e1 127 }
ICTFBI 0:4edb816d21e1 128
ICTFBI 0:4edb816d21e1 129 /* The routine MD5Update updates the message-digest context to
ICTFBI 0:4edb816d21e1 130 account for the presence of each of the characters inBuf[0..inLen-1]
ICTFBI 0:4edb816d21e1 131 in the message whose digest is being computed.
ICTFBI 0:4edb816d21e1 132 */
ICTFBI 0:4edb816d21e1 133 void
ICTFBI 0:4edb816d21e1 134 MD5Update(MD5_CTX *mdContext, unsigned char *inBuf, unsigned int inLen)
ICTFBI 0:4edb816d21e1 135 {
ICTFBI 0:4edb816d21e1 136 u32_t in[16];
ICTFBI 0:4edb816d21e1 137 int mdi;
ICTFBI 0:4edb816d21e1 138 unsigned int i, ii;
ICTFBI 0:4edb816d21e1 139
ICTFBI 0:4edb816d21e1 140 #if 0
ICTFBI 0:4edb816d21e1 141 PPPDEBUG(LOG_INFO, ("MD5Update: %u:%.*H\n", inLen, LWIP_MIN(inLen, 20) * 2, inBuf));
ICTFBI 0:4edb816d21e1 142 PPPDEBUG(LOG_INFO, ("MD5Update: %u:%s\n", inLen, inBuf));
ICTFBI 0:4edb816d21e1 143 #endif
ICTFBI 0:4edb816d21e1 144
ICTFBI 0:4edb816d21e1 145 /* compute number of bytes mod 64 */
ICTFBI 0:4edb816d21e1 146 mdi = (int)((mdContext->i[0] >> 3) & 0x3F);
ICTFBI 0:4edb816d21e1 147
ICTFBI 0:4edb816d21e1 148 /* update number of bits */
ICTFBI 0:4edb816d21e1 149 if ((mdContext->i[0] + ((u32_t)inLen << 3)) < mdContext->i[0]) {
ICTFBI 0:4edb816d21e1 150 mdContext->i[1]++;
ICTFBI 0:4edb816d21e1 151 }
ICTFBI 0:4edb816d21e1 152 mdContext->i[0] += ((u32_t)inLen << 3);
ICTFBI 0:4edb816d21e1 153 mdContext->i[1] += ((u32_t)inLen >> 29);
ICTFBI 0:4edb816d21e1 154
ICTFBI 0:4edb816d21e1 155 while (inLen--) {
ICTFBI 0:4edb816d21e1 156 /* add new character to buffer, increment mdi */
ICTFBI 0:4edb816d21e1 157 mdContext->in[mdi++] = *inBuf++;
ICTFBI 0:4edb816d21e1 158
ICTFBI 0:4edb816d21e1 159 /* transform if necessary */
ICTFBI 0:4edb816d21e1 160 if (mdi == 0x40) {
ICTFBI 0:4edb816d21e1 161 for (i = 0, ii = 0; i < 16; i++, ii += 4) {
ICTFBI 0:4edb816d21e1 162 in[i] = (((u32_t)mdContext->in[ii+3]) << 24) |
ICTFBI 0:4edb816d21e1 163 (((u32_t)mdContext->in[ii+2]) << 16) |
ICTFBI 0:4edb816d21e1 164 (((u32_t)mdContext->in[ii+1]) << 8) |
ICTFBI 0:4edb816d21e1 165 ((u32_t)mdContext->in[ii]);
ICTFBI 0:4edb816d21e1 166 }
ICTFBI 0:4edb816d21e1 167 Transform (mdContext->buf, in);
ICTFBI 0:4edb816d21e1 168 mdi = 0;
ICTFBI 0:4edb816d21e1 169 }
ICTFBI 0:4edb816d21e1 170 }
ICTFBI 0:4edb816d21e1 171 }
ICTFBI 0:4edb816d21e1 172
ICTFBI 0:4edb816d21e1 173 /* The routine MD5Final terminates the message-digest computation and
ICTFBI 0:4edb816d21e1 174 ends with the desired message digest in mdContext->digest[0...15].
ICTFBI 0:4edb816d21e1 175 */
ICTFBI 0:4edb816d21e1 176 void
ICTFBI 0:4edb816d21e1 177 MD5Final (unsigned char hash[], MD5_CTX *mdContext)
ICTFBI 0:4edb816d21e1 178 {
ICTFBI 0:4edb816d21e1 179 u32_t in[16];
ICTFBI 0:4edb816d21e1 180 int mdi;
ICTFBI 0:4edb816d21e1 181 unsigned int i, ii;
ICTFBI 0:4edb816d21e1 182 unsigned int padLen;
ICTFBI 0:4edb816d21e1 183
ICTFBI 0:4edb816d21e1 184 /* save number of bits */
ICTFBI 0:4edb816d21e1 185 in[14] = mdContext->i[0];
ICTFBI 0:4edb816d21e1 186 in[15] = mdContext->i[1];
ICTFBI 0:4edb816d21e1 187
ICTFBI 0:4edb816d21e1 188 /* compute number of bytes mod 64 */
ICTFBI 0:4edb816d21e1 189 mdi = (int)((mdContext->i[0] >> 3) & 0x3F);
ICTFBI 0:4edb816d21e1 190
ICTFBI 0:4edb816d21e1 191 /* pad out to 56 mod 64 */
ICTFBI 0:4edb816d21e1 192 padLen = (mdi < 56) ? (56 - mdi) : (120 - mdi);
ICTFBI 0:4edb816d21e1 193 MD5Update (mdContext, PADDING, padLen);
ICTFBI 0:4edb816d21e1 194
ICTFBI 0:4edb816d21e1 195 /* append length in bits and transform */
ICTFBI 0:4edb816d21e1 196 for (i = 0, ii = 0; i < 14; i++, ii += 4) {
ICTFBI 0:4edb816d21e1 197 in[i] = (((u32_t)mdContext->in[ii+3]) << 24) |
ICTFBI 0:4edb816d21e1 198 (((u32_t)mdContext->in[ii+2]) << 16) |
ICTFBI 0:4edb816d21e1 199 (((u32_t)mdContext->in[ii+1]) << 8) |
ICTFBI 0:4edb816d21e1 200 ((u32_t)mdContext->in[ii]);
ICTFBI 0:4edb816d21e1 201 }
ICTFBI 0:4edb816d21e1 202 Transform (mdContext->buf, in);
ICTFBI 0:4edb816d21e1 203
ICTFBI 0:4edb816d21e1 204 /* store buffer in digest */
ICTFBI 0:4edb816d21e1 205 for (i = 0, ii = 0; i < 4; i++, ii += 4) {
ICTFBI 0:4edb816d21e1 206 mdContext->digest[ii] = (unsigned char)(mdContext->buf[i] & 0xFF);
ICTFBI 0:4edb816d21e1 207 mdContext->digest[ii+1] =
ICTFBI 0:4edb816d21e1 208 (unsigned char)((mdContext->buf[i] >> 8) & 0xFF);
ICTFBI 0:4edb816d21e1 209 mdContext->digest[ii+2] =
ICTFBI 0:4edb816d21e1 210 (unsigned char)((mdContext->buf[i] >> 16) & 0xFF);
ICTFBI 0:4edb816d21e1 211 mdContext->digest[ii+3] =
ICTFBI 0:4edb816d21e1 212 (unsigned char)((mdContext->buf[i] >> 24) & 0xFF);
ICTFBI 0:4edb816d21e1 213 }
ICTFBI 0:4edb816d21e1 214 SMEMCPY(hash, mdContext->digest, 16);
ICTFBI 0:4edb816d21e1 215 }
ICTFBI 0:4edb816d21e1 216
ICTFBI 0:4edb816d21e1 217 /* Basic MD5 step. Transforms buf based on in.
ICTFBI 0:4edb816d21e1 218 */
ICTFBI 0:4edb816d21e1 219 static void
ICTFBI 0:4edb816d21e1 220 Transform (u32_t *buf, u32_t *in)
ICTFBI 0:4edb816d21e1 221 {
ICTFBI 0:4edb816d21e1 222 u32_t a = buf[0], b = buf[1], c = buf[2], d = buf[3];
ICTFBI 0:4edb816d21e1 223
ICTFBI 0:4edb816d21e1 224 /* Round 1 */
ICTFBI 0:4edb816d21e1 225 #define S11 7
ICTFBI 0:4edb816d21e1 226 #define S12 12
ICTFBI 0:4edb816d21e1 227 #define S13 17
ICTFBI 0:4edb816d21e1 228 #define S14 22
ICTFBI 0:4edb816d21e1 229 FF ( a, b, c, d, in[ 0], S11, UL(3614090360)); /* 1 */
ICTFBI 0:4edb816d21e1 230 FF ( d, a, b, c, in[ 1], S12, UL(3905402710)); /* 2 */
ICTFBI 0:4edb816d21e1 231 FF ( c, d, a, b, in[ 2], S13, UL( 606105819)); /* 3 */
ICTFBI 0:4edb816d21e1 232 FF ( b, c, d, a, in[ 3], S14, UL(3250441966)); /* 4 */
ICTFBI 0:4edb816d21e1 233 FF ( a, b, c, d, in[ 4], S11, UL(4118548399)); /* 5 */
ICTFBI 0:4edb816d21e1 234 FF ( d, a, b, c, in[ 5], S12, UL(1200080426)); /* 6 */
ICTFBI 0:4edb816d21e1 235 FF ( c, d, a, b, in[ 6], S13, UL(2821735955)); /* 7 */
ICTFBI 0:4edb816d21e1 236 FF ( b, c, d, a, in[ 7], S14, UL(4249261313)); /* 8 */
ICTFBI 0:4edb816d21e1 237 FF ( a, b, c, d, in[ 8], S11, UL(1770035416)); /* 9 */
ICTFBI 0:4edb816d21e1 238 FF ( d, a, b, c, in[ 9], S12, UL(2336552879)); /* 10 */
ICTFBI 0:4edb816d21e1 239 FF ( c, d, a, b, in[10], S13, UL(4294925233)); /* 11 */
ICTFBI 0:4edb816d21e1 240 FF ( b, c, d, a, in[11], S14, UL(2304563134)); /* 12 */
ICTFBI 0:4edb816d21e1 241 FF ( a, b, c, d, in[12], S11, UL(1804603682)); /* 13 */
ICTFBI 0:4edb816d21e1 242 FF ( d, a, b, c, in[13], S12, UL(4254626195)); /* 14 */
ICTFBI 0:4edb816d21e1 243 FF ( c, d, a, b, in[14], S13, UL(2792965006)); /* 15 */
ICTFBI 0:4edb816d21e1 244 FF ( b, c, d, a, in[15], S14, UL(1236535329)); /* 16 */
ICTFBI 0:4edb816d21e1 245
ICTFBI 0:4edb816d21e1 246 /* Round 2 */
ICTFBI 0:4edb816d21e1 247 #define S21 5
ICTFBI 0:4edb816d21e1 248 #define S22 9
ICTFBI 0:4edb816d21e1 249 #define S23 14
ICTFBI 0:4edb816d21e1 250 #define S24 20
ICTFBI 0:4edb816d21e1 251 GG ( a, b, c, d, in[ 1], S21, UL(4129170786)); /* 17 */
ICTFBI 0:4edb816d21e1 252 GG ( d, a, b, c, in[ 6], S22, UL(3225465664)); /* 18 */
ICTFBI 0:4edb816d21e1 253 GG ( c, d, a, b, in[11], S23, UL( 643717713)); /* 19 */
ICTFBI 0:4edb816d21e1 254 GG ( b, c, d, a, in[ 0], S24, UL(3921069994)); /* 20 */
ICTFBI 0:4edb816d21e1 255 GG ( a, b, c, d, in[ 5], S21, UL(3593408605)); /* 21 */
ICTFBI 0:4edb816d21e1 256 GG ( d, a, b, c, in[10], S22, UL( 38016083)); /* 22 */
ICTFBI 0:4edb816d21e1 257 GG ( c, d, a, b, in[15], S23, UL(3634488961)); /* 23 */
ICTFBI 0:4edb816d21e1 258 GG ( b, c, d, a, in[ 4], S24, UL(3889429448)); /* 24 */
ICTFBI 0:4edb816d21e1 259 GG ( a, b, c, d, in[ 9], S21, UL( 568446438)); /* 25 */
ICTFBI 0:4edb816d21e1 260 GG ( d, a, b, c, in[14], S22, UL(3275163606)); /* 26 */
ICTFBI 0:4edb816d21e1 261 GG ( c, d, a, b, in[ 3], S23, UL(4107603335)); /* 27 */
ICTFBI 0:4edb816d21e1 262 GG ( b, c, d, a, in[ 8], S24, UL(1163531501)); /* 28 */
ICTFBI 0:4edb816d21e1 263 GG ( a, b, c, d, in[13], S21, UL(2850285829)); /* 29 */
ICTFBI 0:4edb816d21e1 264 GG ( d, a, b, c, in[ 2], S22, UL(4243563512)); /* 30 */
ICTFBI 0:4edb816d21e1 265 GG ( c, d, a, b, in[ 7], S23, UL(1735328473)); /* 31 */
ICTFBI 0:4edb816d21e1 266 GG ( b, c, d, a, in[12], S24, UL(2368359562)); /* 32 */
ICTFBI 0:4edb816d21e1 267
ICTFBI 0:4edb816d21e1 268 /* Round 3 */
ICTFBI 0:4edb816d21e1 269 #define S31 4
ICTFBI 0:4edb816d21e1 270 #define S32 11
ICTFBI 0:4edb816d21e1 271 #define S33 16
ICTFBI 0:4edb816d21e1 272 #define S34 23
ICTFBI 0:4edb816d21e1 273 HH ( a, b, c, d, in[ 5], S31, UL(4294588738)); /* 33 */
ICTFBI 0:4edb816d21e1 274 HH ( d, a, b, c, in[ 8], S32, UL(2272392833)); /* 34 */
ICTFBI 0:4edb816d21e1 275 HH ( c, d, a, b, in[11], S33, UL(1839030562)); /* 35 */
ICTFBI 0:4edb816d21e1 276 HH ( b, c, d, a, in[14], S34, UL(4259657740)); /* 36 */
ICTFBI 0:4edb816d21e1 277 HH ( a, b, c, d, in[ 1], S31, UL(2763975236)); /* 37 */
ICTFBI 0:4edb816d21e1 278 HH ( d, a, b, c, in[ 4], S32, UL(1272893353)); /* 38 */
ICTFBI 0:4edb816d21e1 279 HH ( c, d, a, b, in[ 7], S33, UL(4139469664)); /* 39 */
ICTFBI 0:4edb816d21e1 280 HH ( b, c, d, a, in[10], S34, UL(3200236656)); /* 40 */
ICTFBI 0:4edb816d21e1 281 HH ( a, b, c, d, in[13], S31, UL( 681279174)); /* 41 */
ICTFBI 0:4edb816d21e1 282 HH ( d, a, b, c, in[ 0], S32, UL(3936430074)); /* 42 */
ICTFBI 0:4edb816d21e1 283 HH ( c, d, a, b, in[ 3], S33, UL(3572445317)); /* 43 */
ICTFBI 0:4edb816d21e1 284 HH ( b, c, d, a, in[ 6], S34, UL( 76029189)); /* 44 */
ICTFBI 0:4edb816d21e1 285 HH ( a, b, c, d, in[ 9], S31, UL(3654602809)); /* 45 */
ICTFBI 0:4edb816d21e1 286 HH ( d, a, b, c, in[12], S32, UL(3873151461)); /* 46 */
ICTFBI 0:4edb816d21e1 287 HH ( c, d, a, b, in[15], S33, UL( 530742520)); /* 47 */
ICTFBI 0:4edb816d21e1 288 HH ( b, c, d, a, in[ 2], S34, UL(3299628645)); /* 48 */
ICTFBI 0:4edb816d21e1 289
ICTFBI 0:4edb816d21e1 290 /* Round 4 */
ICTFBI 0:4edb816d21e1 291 #define S41 6
ICTFBI 0:4edb816d21e1 292 #define S42 10
ICTFBI 0:4edb816d21e1 293 #define S43 15
ICTFBI 0:4edb816d21e1 294 #define S44 21
ICTFBI 0:4edb816d21e1 295 II ( a, b, c, d, in[ 0], S41, UL(4096336452)); /* 49 */
ICTFBI 0:4edb816d21e1 296 II ( d, a, b, c, in[ 7], S42, UL(1126891415)); /* 50 */
ICTFBI 0:4edb816d21e1 297 II ( c, d, a, b, in[14], S43, UL(2878612391)); /* 51 */
ICTFBI 0:4edb816d21e1 298 II ( b, c, d, a, in[ 5], S44, UL(4237533241)); /* 52 */
ICTFBI 0:4edb816d21e1 299 II ( a, b, c, d, in[12], S41, UL(1700485571)); /* 53 */
ICTFBI 0:4edb816d21e1 300 II ( d, a, b, c, in[ 3], S42, UL(2399980690)); /* 54 */
ICTFBI 0:4edb816d21e1 301 II ( c, d, a, b, in[10], S43, UL(4293915773)); /* 55 */
ICTFBI 0:4edb816d21e1 302 II ( b, c, d, a, in[ 1], S44, UL(2240044497)); /* 56 */
ICTFBI 0:4edb816d21e1 303 II ( a, b, c, d, in[ 8], S41, UL(1873313359)); /* 57 */
ICTFBI 0:4edb816d21e1 304 II ( d, a, b, c, in[15], S42, UL(4264355552)); /* 58 */
ICTFBI 0:4edb816d21e1 305 II ( c, d, a, b, in[ 6], S43, UL(2734768916)); /* 59 */
ICTFBI 0:4edb816d21e1 306 II ( b, c, d, a, in[13], S44, UL(1309151649)); /* 60 */
ICTFBI 0:4edb816d21e1 307 II ( a, b, c, d, in[ 4], S41, UL(4149444226)); /* 61 */
ICTFBI 0:4edb816d21e1 308 II ( d, a, b, c, in[11], S42, UL(3174756917)); /* 62 */
ICTFBI 0:4edb816d21e1 309 II ( c, d, a, b, in[ 2], S43, UL( 718787259)); /* 63 */
ICTFBI 0:4edb816d21e1 310 II ( b, c, d, a, in[ 9], S44, UL(3951481745)); /* 64 */
ICTFBI 0:4edb816d21e1 311
ICTFBI 0:4edb816d21e1 312 buf[0] += a;
ICTFBI 0:4edb816d21e1 313 buf[1] += b;
ICTFBI 0:4edb816d21e1 314 buf[2] += c;
ICTFBI 0:4edb816d21e1 315 buf[3] += d;
ICTFBI 0:4edb816d21e1 316 }
ICTFBI 0:4edb816d21e1 317
ICTFBI 0:4edb816d21e1 318 #endif /* CHAP_SUPPORT || MD5_SUPPORT */
ICTFBI 0:4edb816d21e1 319
ICTFBI 0:4edb816d21e1 320 #endif /* PPP_SUPPORT */