#include <string.h>
#include "asterisk.h"
#include "asterisk/endian.h"
#include "asterisk/md5.h"
Include dependency graph for md5.c:
Go to the source code of this file.
Defines | |
| #define | F1(x, y, z) (z ^ (x & (y ^ z))) |
| #define | F2(x, y, z) F1(z, x, y) |
| #define | F3(x, y, z) (x ^ y ^ z) |
| #define | F4(x, y, z) (y ^ (x | ~z)) |
| #define | HIGHFIRST 1 |
| #define | MD5STEP(f, w, x, y, z, data, s) ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x ) |
Functions | |
| void | byteReverse (unsigned char *buf, unsigned longs) |
| void | MD5Final (unsigned char digest[16], struct MD5Context *ctx) |
| void | MD5Init (struct MD5Context *ctx) |
| void | MD5Transform (uint32_t buf[4], uint32_t const in[16]) |
| void | MD5Update (struct MD5Context *ctx, unsigned char const *buf, unsigned len) |
Definition in file md5.c.
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Definition at line 169 of file md5.c. Referenced by MD5Transform(). |
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Definition at line 170 of file md5.c. Referenced by MD5Transform(). |
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Definition at line 171 of file md5.c. Referenced by MD5Transform(). |
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Definition at line 172 of file md5.c. Referenced by MD5Transform(). |
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Definition at line 175 of file md5.c. Referenced by MD5Transform(). |
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Definition at line 43 of file md5.c. References t. Referenced by MD5Final(), and MD5Update(). 00044 {
00045 uint32_t t;
00046 do {
00047 t = (uint32_t) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
00048 ((unsigned) buf[1] << 8 | buf[0]);
00049 *(uint32_t *) buf = t;
00050 buf += 4;
00051 } while (--longs);
00052 }
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Definition at line 123 of file md5.c. References MD5Context::bits, MD5Context::buf, byteReverse(), MD5Context::in, and MD5Transform(). Referenced by ast_md5_hash(), authenticate(), authenticate_verify(), decrypt_frame(), festival_exec(), prov_ver_calc(), register_verify(), try_firmware(), try_load_key(), and verify_key(). 00124 {
00125 unsigned count;
00126 unsigned char *p;
00127
00128 /* Compute number of bytes mod 64 */
00129 count = (ctx->bits[0] >> 3) & 0x3F;
00130
00131 /* Set the first char of padding to 0x80. This is safe since there is
00132 always at least one byte free */
00133 p = ctx->in + count;
00134 *p++ = 0x80;
00135
00136 /* Bytes of padding needed to make 64 bytes */
00137 count = 64 - 1 - count;
00138
00139 /* Pad out to 56 mod 64 */
00140 if (count < 8) {
00141 /* Two lots of padding: Pad the first block to 64 bytes */
00142 memset(p, 0, count);
00143 byteReverse(ctx->in, 16);
00144 MD5Transform(ctx->buf, (uint32_t *) ctx->in);
00145
00146 /* Now fill the next block with 56 bytes */
00147 memset(ctx->in, 0, 56);
00148 } else {
00149 /* Pad block to 56 bytes */
00150 memset(p, 0, count - 8);
00151 }
00152 byteReverse(ctx->in, 14);
00153
00154 /* Append length in bits and transform */
00155 ((uint32_t *) ctx->in)[14] = ctx->bits[0];
00156 ((uint32_t *) ctx->in)[15] = ctx->bits[1];
00157
00158 MD5Transform(ctx->buf, (uint32_t *) ctx->in);
00159 byteReverse((unsigned char *) ctx->buf, 4);
00160 memcpy(digest, ctx->buf, 16);
00161 memset(ctx, 0, sizeof(ctx)); /* In case it's sensitive */
00162 }
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Definition at line 60 of file md5.c. Referenced by ast_md5_hash(), authenticate(), authenticate_verify(), decrypt_frame(), festival_exec(), prov_ver_calc(), register_verify(), try_firmware(), try_load_key(), and verify_key(). 00061 {
00062 ctx->buf[0] = 0x67452301;
00063 ctx->buf[1] = 0xefcdab89;
00064 ctx->buf[2] = 0x98badcfe;
00065 ctx->buf[3] = 0x10325476;
00066
00067 ctx->bits[0] = 0;
00068 ctx->bits[1] = 0;
00069 }
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Definition at line 183 of file md5.c. References F1, F2, F3, F4, and MD5STEP. Referenced by MD5Final(), and MD5Update(). 00184 {
00185 register uint32_t a, b, c, d;
00186
00187 a = buf[0];
00188 b = buf[1];
00189 c = buf[2];
00190 d = buf[3];
00191
00192 MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
00193 MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
00194 MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
00195 MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
00196 MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
00197 MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
00198 MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
00199 MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
00200 MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
00201 MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
00202 MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
00203 MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
00204 MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
00205 MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
00206 MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
00207 MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
00208
00209 MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
00210 MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
00211 MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
00212 MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
00213 MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
00214 MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
00215 MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
00216 MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
00217 MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
00218 MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
00219 MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
00220 MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
00221 MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
00222 MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
00223 MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
00224 MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
00225
00226 MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
00227 MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
00228 MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
00229 MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
00230 MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
00231 MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
00232 MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
00233 MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
00234 MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
00235 MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
00236 MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
00237 MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
00238 MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
00239 MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
00240 MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
00241 MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
00242
00243 MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
00244 MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
00245 MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
00246 MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
00247 MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
00248 MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
00249 MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
00250 MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
00251 MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
00252 MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
00253 MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
00254 MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
00255 MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
00256 MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
00257 MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
00258 MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
00259
00260 buf[0] += a;
00261 buf[1] += b;
00262 buf[2] += c;
00263 buf[3] += d;
00264 }
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Definition at line 75 of file md5.c. References MD5Context::bits, MD5Context::buf, byteReverse(), MD5Context::in, MD5Transform(), and t. Referenced by ast_md5_hash(), authenticate(), authenticate_verify(), decrypt_frame(), festival_exec(), prov_ver_calc(), register_verify(), try_firmware(), try_load_key(), and verify_key(). 00076 {
00077 uint32_t t;
00078
00079 /* Update bitcount */
00080
00081 t = ctx->bits[0];
00082 if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t)
00083 ctx->bits[1]++; /* Carry from low to high */
00084 ctx->bits[1] += len >> 29;
00085
00086 t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
00087
00088 /* Handle any leading odd-sized chunks */
00089
00090 if (t) {
00091 unsigned char *p = (unsigned char *) ctx->in + t;
00092
00093 t = 64 - t;
00094 if (len < t) {
00095 memcpy(p, buf, len);
00096 return;
00097 }
00098 memcpy(p, buf, t);
00099 byteReverse(ctx->in, 16);
00100 MD5Transform(ctx->buf, (uint32_t *) ctx->in);
00101 buf += t;
00102 len -= t;
00103 }
00104 /* Process data in 64-byte chunks */
00105
00106 while (len >= 64) {
00107 memcpy(ctx->in, buf, 64);
00108 byteReverse(ctx->in, 16);
00109 MD5Transform(ctx->buf, (uint32_t *) ctx->in);
00110 buf += 64;
00111 len -= 64;
00112 }
00113
00114 /* Handle any remaining bytes of data. */
00115
00116 memcpy(ctx->in, buf, len);
00117 }
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1.4.2