45 #if FF_API_CONTEXT_SIZE
61 static const uint32_t
T[64] = {
62 0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
63 0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
64 0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
65 0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,
67 0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,
68 0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8,
69 0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
70 0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,
72 0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,
73 0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
74 0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x04881d05,
75 0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,
77 0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,
78 0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
79 0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
80 0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391,
83 #define CORE(i, a, b, c, d) do { \
84 t = S[i >> 4][i & 3]; \
88 if (i < 16) a += (d ^ (b & (c ^ d))) + X[ i & 15]; \
89 else a += (c ^ (d & (c ^ b))) + X[(1 + 5*i) & 15]; \
91 if (i < 48) a += (b ^ c ^ d) + X[(5 + 3*i) & 15]; \
92 else a += (c ^ (b | ~d)) + X[( 7*i) & 15]; \
94 a = b + (a << t | a >> (32 - t)); \
97 static void body(uint32_t
ABCD[4], uint32_t X[16])
101 unsigned int a = ABCD[3];
102 unsigned int b = ABCD[2];
103 unsigned int c = ABCD[1];
104 unsigned int d = ABCD[0];
107 for (i = 0; i < 16; i++)
112 for (i = 0; i < 64; i++) {
122 CORE( i, a,b,c,d); CORE((i+1),d,a,b,c); \
123 CORE((i+2),c,d,a,b); CORE((i+3),b,c,d,a)
124 #define CORE4(i) CORE2(i); CORE2((i+4)); CORE2((i+8)); CORE2((i+12))
138 ctx->
ABCD[0] = 0x10325476;
139 ctx->
ABCD[1] = 0x98badcfe;
140 ctx->
ABCD[2] = 0xefcdab89;
141 ctx->
ABCD[3] = 0x67452301;
151 for (i = 0; i <
len; i++) {
152 ctx->
block[j++] = src[i];
166 while ((ctx->
len & 63) != 56)
171 for (i = 0; i < 4; i++)
187 static void print_md5(
uint8_t *md5)
190 for (i = 0; i < 16; i++)
191 printf(
"%02x", md5[i]);
200 for (i = 0; i < 1000; i++)
202 av_md5_sum(md5val, in, 1000); print_md5(md5val);
203 av_md5_sum(md5val, in, 63); print_md5(md5val);
204 av_md5_sum(md5val, in, 64); print_md5(md5val);
205 av_md5_sum(md5val, in, 65); print_md5(md5val);
206 for (i = 0; i < 1000; i++)
208 av_md5_sum(md5val, in, 999); print_md5(md5val);