INNER CODE UNIT · C++
s0
7thSamurai/steganography · src/sha256.cpp:96
std::uint32_t s0 = rotr(w[i-15], 7) ^ rotr(w[i-15], 18) ^ (w[i-15] >> 3);
std::uint32_t s1 = rotr(w[i- 2], 17) ^ rotr(w[i- 2], 19) ^ (w[i- 2] >> 10);
w[i] = w[i-16] + s0 + w[i-7] + s1;
}
std::uint32_t tv[8];
std::copy(h, h+8, tv);
for (int i = 0; i < 64; i++) {
std::uint32_t S1 = rotr(tv[4], 6) ^ rotr(tv[4], 11) ^ rotr(tv[4], 25);
std::uint32_t ch = (tv[4] & tv[5]) ^ ((~tv[4]) & tv[6]);
std::uint32_t temp1 = tv[7] + S1 + ch + k[i] + w[i];
std::uint32_t S0 = rotr(tv[0], 2) ^ rotr(tv[0], 13) ^ rotr(tv[0], 22);
std::uint32_t maj = (tv[0] & tv[1]) ^ (tv[0] & tv[2]) ^ (tv[1] & tv[2]);
std::uint32_t temp2 = S0 + maj;
tv[7] = tv[6];
tv[6] = tv[5];