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void
of_salsa20_8_core(uint32_t buffer[16])
{
uint32_t tmp[16];
for (uint_fast8_t i = 0; i < 16; i++)
tmp[i] = buffer[i];
tmp[i] = OF_BSWAP32_IF_BE(buffer[i]);
for (uint_fast8_t i = 0; i < 8; i+= 2) {
tmp[ 4] ^= OF_ROL(tmp[ 0] + tmp[12], 7);
tmp[ 8] ^= OF_ROL(tmp[ 4] + tmp[ 0], 9);
tmp[12] ^= OF_ROL(tmp[ 8] + tmp[ 4], 13);
tmp[ 0] ^= OF_ROL(tmp[12] + tmp[ 8], 18);
tmp[ 9] ^= OF_ROL(tmp[ 5] + tmp[ 1], 7);
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tmp[12] ^= OF_ROL(tmp[15] + tmp[14], 7);
tmp[13] ^= OF_ROL(tmp[12] + tmp[15], 9);
tmp[14] ^= OF_ROL(tmp[13] + tmp[12], 13);
tmp[15] ^= OF_ROL(tmp[14] + tmp[13], 18);
}
for (uint_fast8_t i = 0; i < 16; i++)
buffer[i] = OF_BSWAP32_IF_BE(OF_BSWAP32_IF_BE(buffer[i]) +
buffer[i] += tmp[i];
tmp[i]);
of_explicit_memset(tmp, 0, sizeof(tmp));
}
void
of_scrypt_block_mix(uint32_t *output, const uint32_t *input, size_t blockSize)
{
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for (size_t i = 0; i < costFactor; i++) {
memcpy(tmp2 + i * 32 * blockSize, tmp, 128 * blockSize);
of_scrypt_block_mix(tmp, tmp2 + i * 32 * blockSize, blockSize);
}
for (size_t i = 0; i < costFactor; i++) {
uint32_t j = tmp[(2 * blockSize - 1) * 16] & (costFactor - 1);
uint32_t j = OF_BSWAP32_IF_BE(tmp[(2 * blockSize - 1) * 16]) &
(costFactor - 1);
for (size_t k = 0; k < 32 * blockSize; k++)
tmp[k] ^= tmp2[j * 32 * blockSize + k];
of_scrypt_block_mix(buffer, tmp, blockSize);
if (i < costFactor - 1)
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