void sha256_update(struct sha256_ctx *sctx, const uint8_t *data,
unsigned int len)
{
- unsigned int i, index, part_len;
+ unsigned int i, idx, part_len;
/* Compute number of bytes mod 128 */
- index = (unsigned int)((sctx->count[0] >> 3) & 0x3f);
+ idx = (unsigned int)((sctx->count[0] >> 3) & 0x3f);
/* Update number of bits */
if ((sctx->count[0] += (len << 3)) < (len << 3)) {
sctx->count[1] += (len >> 29);
}
- part_len = 64 - index;
+ part_len = 64 - idx;
/* Transform as many times as possible. */
if (len >= part_len) {
- memcpy(&sctx->buf[index], data, part_len);
+ memcpy(&sctx->buf[idx], data, part_len);
sha256_transform(sctx->state, sctx->buf);
for (i = part_len; i + 63 < len; i += 64)
sha256_transform(sctx->state, &data[i]);
- index = 0;
+ idx = 0;
} else {
i = 0;
}
/* Buffer remaining input */
- memcpy(&sctx->buf[index], &data[i], len-i);
+ memcpy(&sctx->buf[idx], &data[i], len-i);
}