63 uint32_t A = digest[0];
64 uint32_t B = digest[1];
65 uint32_t C = digest[2];
66 uint32_t D = digest[3];
67 std::array<uint32_t, 16> M{};
71 for(
size_t i = 0; i != blocks; ++i) {
76 FF< 7>(A, B, C, D, M[ 0] + 0xD76AA478);
77 FF<12>(D, A, B, C, M[ 1] + 0xE8C7B756);
78 FF<17>(C, D, A, B, M[ 2] + 0x242070DB);
79 FF<22>(B, C, D, A, M[ 3] + 0xC1BDCEEE);
80 FF< 7>(A, B, C, D, M[ 4] + 0xF57C0FAF);
81 FF<12>(D, A, B, C, M[ 5] + 0x4787C62A);
82 FF<17>(C, D, A, B, M[ 6] + 0xA8304613);
83 FF<22>(B, C, D, A, M[ 7] + 0xFD469501);
84 FF< 7>(A, B, C, D, M[ 8] + 0x698098D8);
85 FF<12>(D, A, B, C, M[ 9] + 0x8B44F7AF);
86 FF<17>(C, D, A, B, M[10] + 0xFFFF5BB1);
87 FF<22>(B, C, D, A, M[11] + 0x895CD7BE);
88 FF< 7>(A, B, C, D, M[12] + 0x6B901122);
89 FF<12>(D, A, B, C, M[13] + 0xFD987193);
90 FF<17>(C, D, A, B, M[14] + 0xA679438E);
91 FF<22>(B, C, D, A, M[15] + 0x49B40821);
93 GG< 5>(A, B, C, D, M[ 1] + 0xF61E2562);
94 GG< 9>(D, A, B, C, M[ 6] + 0xC040B340);
95 GG<14>(C, D, A, B, M[11] + 0x265E5A51);
96 GG<20>(B, C, D, A, M[ 0] + 0xE9B6C7AA);
97 GG< 5>(A, B, C, D, M[ 5] + 0xD62F105D);
98 GG< 9>(D, A, B, C, M[10] + 0x02441453);
99 GG<14>(C, D, A, B, M[15] + 0xD8A1E681);
100 GG<20>(B, C, D, A, M[ 4] + 0xE7D3FBC8);
101 GG< 5>(A, B, C, D, M[ 9] + 0x21E1CDE6);
102 GG< 9>(D, A, B, C, M[14] + 0xC33707D6);
103 GG<14>(C, D, A, B, M[ 3] + 0xF4D50D87);
104 GG<20>(B, C, D, A, M[ 8] + 0x455A14ED);
105 GG< 5>(A, B, C, D, M[13] + 0xA9E3E905);
106 GG< 9>(D, A, B, C, M[ 2] + 0xFCEFA3F8);
107 GG<14>(C, D, A, B, M[ 7] + 0x676F02D9);
108 GG<20>(B, C, D, A, M[12] + 0x8D2A4C8A);
110 HH< 4>(A, B, C, D, M[ 5] + 0xFFFA3942);
111 HH<11>(D, A, B, C, M[ 8] + 0x8771F681);
112 HH<16>(C, D, A, B, M[11] + 0x6D9D6122);
113 HH<23>(B, C, D, A, M[14] + 0xFDE5380C);
114 HH< 4>(A, B, C, D, M[ 1] + 0xA4BEEA44);
115 HH<11>(D, A, B, C, M[ 4] + 0x4BDECFA9);
116 HH<16>(C, D, A, B, M[ 7] + 0xF6BB4B60);
117 HH<23>(B, C, D, A, M[10] + 0xBEBFBC70);
118 HH< 4>(A, B, C, D, M[13] + 0x289B7EC6);
119 HH<11>(D, A, B, C, M[ 0] + 0xEAA127FA);
120 HH<16>(C, D, A, B, M[ 3] + 0xD4EF3085);
121 HH<23>(B, C, D, A, M[ 6] + 0x04881D05);
122 HH< 4>(A, B, C, D, M[ 9] + 0xD9D4D039);
123 HH<11>(D, A, B, C, M[12] + 0xE6DB99E5);
124 HH<16>(C, D, A, B, M[15] + 0x1FA27CF8);
125 HH<23>(B, C, D, A, M[ 2] + 0xC4AC5665);
127 II< 6>(A, B, C, D, M[ 0] + 0xF4292244);
128 II<10>(D, A, B, C, M[ 7] + 0x432AFF97);
129 II<15>(C, D, A, B, M[14] + 0xAB9423A7);
130 II<21>(B, C, D, A, M[ 5] + 0xFC93A039);
131 II< 6>(A, B, C, D, M[12] + 0x655B59C3);
132 II<10>(D, A, B, C, M[ 3] + 0x8F0CCC92);
133 II<15>(C, D, A, B, M[10] + 0xFFEFF47D);
134 II<21>(B, C, D, A, M[ 1] + 0x85845DD1);
135 II< 6>(A, B, C, D, M[ 8] + 0x6FA87E4F);
136 II<10>(D, A, B, C, M[15] + 0xFE2CE6E0);
137 II<15>(C, D, A, B, M[ 6] + 0xA3014314);
138 II<21>(B, C, D, A, M[13] + 0x4E0811A1);
139 II< 6>(A, B, C, D, M[ 4] + 0xF7537E82);
140 II<10>(D, A, B, C, M[11] + 0xBD3AF235);
141 II<15>(C, D, A, B, M[ 2] + 0x2AD7D2BB);
142 II<21>(B, C, D, A, M[ 9] + 0xEB86D391);
146 A = (digest[0] += A);
147 B = (digest[1] += B);
148 C = (digest[2] += C);
149 D = (digest[3] += D);