関数 | |
static void | MD5Transform (uint32 buf[4], uint32 const in[16]) |
static void | byteReverse (unsigned char *buf, unsigned longs) |
void | MD5Init (struct MD5Context *ctx) |
void | MD5Update (struct MD5Context *ctx, unsigned char const *buf, unsigned len) |
void | MD5Final (unsigned char digest[16], struct MD5Context *ctx) |
static void MD5Transform | ( | uint32 | buf[4], | |
uint32 const | in[16] | |||
) | [static] |
参照先 c.
参照元 MD5Final()・MD5Update().
00167 { 00168 register uint32 a, b, c, d; 00169 00170 a = buf[0]; 00171 b = buf[1]; 00172 c = buf[2]; 00173 d = buf[3]; 00174 00175 MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7); 00176 MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12); 00177 MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17); 00178 MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22); 00179 MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7); 00180 MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12); 00181 MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17); 00182 MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22); 00183 MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7); 00184 MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12); 00185 MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17); 00186 MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22); 00187 MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7); 00188 MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12); 00189 MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17); 00190 MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22); 00191 00192 MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5); 00193 MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9); 00194 MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14); 00195 MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20); 00196 MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5); 00197 MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9); 00198 MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14); 00199 MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20); 00200 MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5); 00201 MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9); 00202 MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14); 00203 MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20); 00204 MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5); 00205 MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9); 00206 MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14); 00207 MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20); 00208 00209 MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4); 00210 MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11); 00211 MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16); 00212 MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23); 00213 MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4); 00214 MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11); 00215 MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16); 00216 MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23); 00217 MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4); 00218 MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11); 00219 MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16); 00220 MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23); 00221 MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4); 00222 MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11); 00223 MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16); 00224 MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23); 00225 00226 MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6); 00227 MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10); 00228 MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15); 00229 MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21); 00230 MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6); 00231 MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10); 00232 MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15); 00233 MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21); 00234 MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6); 00235 MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10); 00236 MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15); 00237 MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21); 00238 MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6); 00239 MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10); 00240 MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15); 00241 MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21); 00242 00243 buf[0] += a; 00244 buf[1] += b; 00245 buf[2] += c; 00246 buf[3] += d; 00247 }
static void byteReverse | ( | unsigned char * | buf, | |
unsigned | longs | |||
) | [static] |
void MD5Init | ( | struct MD5Context * | ctx | ) |
参照先 ctx.
参照元 calc_ntlmv2_key()・creds_init_128()・E_md5hash()・encode_or_decode_arc4_passwd_buffer()・hmac_md5_final()・hmac_md5_init_limK_to_64()・hmac_md5_init_rfc2104()・netdom_join_domain()・ntlmssp_client_challenge()・ntlmssp_server_auth()・simple_packet_signature().
00046 { 00047 ctx->buf[0] = 0x67452301; 00048 ctx->buf[1] = 0xefcdab89; 00049 ctx->buf[2] = 0x98badcfe; 00050 ctx->buf[3] = 0x10325476; 00051 00052 ctx->bits[0] = 0; 00053 ctx->bits[1] = 0; 00054 }
void MD5Update | ( | struct MD5Context * | ctx, | |
unsigned char const * | buf, | |||
unsigned | len | |||
) |
参照先 byteReverse()・ctx・MD5Transform()・t.
参照元 calc_ntlmv2_key()・creds_init_128()・E_md5hash()・encode_or_decode_arc4_passwd_buffer()・hmac_md5_final()・hmac_md5_init_limK_to_64()・hmac_md5_init_rfc2104()・hmac_md5_update()・netdom_join_domain()・ntlmssp_client_challenge()・ntlmssp_server_auth()・simple_packet_signature().
00061 { 00062 register uint32 t; 00063 00064 /* Update bitcount */ 00065 00066 t = ctx->bits[0]; 00067 if ((ctx->bits[0] = t + ((uint32) len << 3)) < t) 00068 ctx->bits[1]++; /* Carry from low to high */ 00069 ctx->bits[1] += len >> 29; 00070 00071 t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */ 00072 00073 /* Handle any leading odd-sized chunks */ 00074 00075 if (t) { 00076 unsigned char *p = (unsigned char *) ctx->in + t; 00077 00078 t = 64 - t; 00079 if (len < t) { 00080 memmove(p, buf, len); 00081 return; 00082 } 00083 memmove(p, buf, t); 00084 byteReverse(ctx->in, 16); 00085 MD5Transform(ctx->buf, (uint32 *) ctx->in); 00086 buf += t; 00087 len -= t; 00088 } 00089 /* Process data in 64-byte chunks */ 00090 00091 while (len >= 64) { 00092 memmove(ctx->in, buf, 64); 00093 byteReverse(ctx->in, 16); 00094 MD5Transform(ctx->buf, (uint32 *) ctx->in); 00095 buf += 64; 00096 len -= 64; 00097 } 00098 00099 /* Handle any remaining bytes of data. */ 00100 00101 memmove(ctx->in, buf, len); 00102 }
void MD5Final | ( | unsigned char | digest[16], | |
struct MD5Context * | ctx | |||
) |
参照先 byteReverse()・ctx・MD5Transform().
参照元 calc_ntlmv2_key()・creds_init_128()・E_md5hash()・encode_or_decode_arc4_passwd_buffer()・hmac_md5_final()・hmac_md5_init_rfc2104()・netdom_join_domain()・ntlmssp_client_challenge()・ntlmssp_server_auth()・simple_packet_signature().
00109 { 00110 unsigned int count; 00111 unsigned char *p; 00112 00113 /* Compute number of bytes mod 64 */ 00114 count = (ctx->bits[0] >> 3) & 0x3F; 00115 00116 /* Set the first char of padding to 0x80. This is safe since there is 00117 always at least one byte free */ 00118 p = ctx->in + count; 00119 *p++ = 0x80; 00120 00121 /* Bytes of padding needed to make 64 bytes */ 00122 count = 64 - 1 - count; 00123 00124 /* Pad out to 56 mod 64 */ 00125 if (count < 8) { 00126 /* Two lots of padding: Pad the first block to 64 bytes */ 00127 memset(p, 0, count); 00128 byteReverse(ctx->in, 16); 00129 MD5Transform(ctx->buf, (uint32 *) ctx->in); 00130 00131 /* Now fill the next block with 56 bytes */ 00132 memset(ctx->in, 0, 56); 00133 } else { 00134 /* Pad block to 56 bytes */ 00135 memset(p, 0, count - 8); 00136 } 00137 byteReverse(ctx->in, 14); 00138 00139 /* Append length in bits and transform */ 00140 ((uint32 *) ctx->in)[14] = ctx->bits[0]; 00141 ((uint32 *) ctx->in)[15] = ctx->bits[1]; 00142 00143 MD5Transform(ctx->buf, (uint32 *) ctx->in); 00144 byteReverse((unsigned char *) ctx->buf, 4); 00145 memmove(digest, ctx->buf, 16); 00146 memset(ctx, 0, sizeof(ctx)); /* In case it's sensitive */ 00147 }