Function Round

src/simplicity/sha256.c:29–34

One round of SHA-256. * * Precondition: NULL != d * NULL != h * d != h */

 *               d != h
 */
static inline void Round(uint32_t a, uint32_t b, uint32_t c, uint32_t* d, uint32_t e, uint32_t f, uint32_t g, uint32_t* h, uint32_t k) {
    uint32_t t1 = 1U * *h + Sigma1(e) + Ch(e, f, g) + k;
    uint32_t t2 = 1U * Sigma0(a) + Maj(a, b, c);
    *d = 1U * *d + t1;
    *h = 1U * t1 + t2;
}

/* Given a 256-bit 's' and a 512-bit 'chunk', then 's' becomes the value of the SHA-256 compression function ("added" to the original 's' value).
 *