Function cbm_sha256_final

src/foundation/sha256.c:92–119

}

void cbm_sha256_final(cbm_sha256_ctx *c, uint8_t out[CBM_SHA256_DIGEST_LEN]) {
    c->bitlen += (uint64_t)c->buflen * 8;

    size_t i = c->buflen;
    c->buf[i++] = 0x80; /* append the '1' bit + zero padding */
    if (i > 56) {
        while (i < 64) {
            c->buf[i++] = 0;
        }
        sha256_transform(c, c->buf);
        i = 0;
    }
    while (i < 56) {
        c->buf[i++] = 0;
    }
    /* append the 64-bit big-endian message length */
    for (int j = 0; j < 8; j++) {
        c->buf[56 + j] = (uint8_t)(c->bitlen >> (56 - 8 * j));
    }
    sha256_transform(c, c->buf);

    for (int j = 0; j < 8; j++) {
        out[j * 4] = (uint8_t)(c->state[j] >> 24);
        out[j * 4 + 1] = (uint8_t)(c->state[j] >> 16);
        out[j * 4 + 2] = (uint8_t)(c->state[j] >> 8);
        out[j * 4 + 3] = (uint8_t)(c->state[j]);
    }
}

void cbm_sha256_hex(const void *data, size_t len, char out[CBM_SHA256_HEX_LEN + 1]) {
    uint8_t digest[CBM_SHA256_DIGEST_LEN];