Function SHA1Update

payloads/libpayload/crypto/sha1.c:137–154

* Run your data through this. */

 * Run your data through this.
 */
void
SHA1Update(SHA1_CTX *context, const u_int8_t *data, size_t len)
{
	size_t i, j;

	j = (size_t)((context->count >> 3) & 63);
	context->count += (len << 3);
	if ((j + len) > 63) {
		(void)memcpy(&context->buffer[j], data, (i = 64-j));
		SHA1Transform(context->state, context->buffer);
		for ( ; i + 63 < len; i += 64)
			SHA1Transform(context->state, (u_int8_t *)&data[i]);
		j = 0;
	} else {
		i = 0;
	}
	(void)memcpy(&context->buffer[j], &data[i], len - i);
}

/*
 * Add padding and return the message digest.