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Function MD5Transform

src/dolphin/src/eth/md5.c:173–258  ·  view source on GitHub ↗

MD5 basic transformation. Transforms state based on block. */

Source from the content-addressed store, hash-verified

171/* MD5 basic transformation. Transforms state based on block.
172 */
173static void MD5Transform (u32 state[4], u8 block[64])
174{
175 u32 a = state[0], b = state[1], c = state[2], d = state[3], x[16];
176
177 Decode (x, block, 64);
178
179 /* Round 1 */
180 FF (a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */
181 FF (d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */
182 FF (c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */
183 FF (b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */
184 FF (a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */
185 FF (d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */
186 FF (c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */
187 FF (b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */
188 FF (a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */
189 FF (d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */
190 FF (c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
191 FF (b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
192 FF (a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
193 FF (d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
194 FF (c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
195 FF (b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
196
197 /* Round 2 */
198 GG (a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */
199 GG (d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */
200 GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
201 GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */
202 GG (a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */
203 GG (d, a, b, c, x[10], S22, 0x2441453); /* 22 */
204 GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
205 GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */
206 GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */
207 GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
208 GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */
209 GG (b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */
210 GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
211 GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */
212 GG (c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */
213 GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
214
215 /* Round 3 */
216 HH (a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */
217 HH (d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */
218 HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
219 HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
220 HH (a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */
221 HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */
222 HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */
223 HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
224 HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
225 HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */
226 HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */
227 HH (b, c, d, a, x[ 6], S34, 0x4881d05); /* 44 */
228 HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */
229 HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
230 HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */

Callers 1

MD5UpdateFunction · 0.85

Calls 2

memsetFunction · 0.85
DecodeFunction · 0.70

Tested by

no test coverage detected