linux-master/crypto/drbg.c

1658 struct sdesc {
1665 	struct sdesc *sdesc;
1675 	sdesc = kzalloc(sizeof(struct shash_desc) + crypto_shash_descsize(tfm),
1677 	if (!sdesc) {
1682 	sdesc->shash.tfm = tfm;
1683 	drbg->priv_data = sdesc;
1690 	struct sdesc *sdesc = drbg->priv_data;
1691 	if (sdesc) {
1692 		crypto_free_shash(sdesc->shash.tfm);
1693 		kfree_sensitive(sdesc);
1702 	struct sdesc *sdesc = drbg->priv_data;
1704 	crypto_shash_setkey(sdesc->shash.tfm, key, drbg_statelen(drbg));
1710 	struct sdesc *sdesc = drbg->priv_data;
1713 	crypto_shash_init(&sdesc->shash);
1715 		crypto_shash_update(&sdesc->shash, input->buf, input->len);
1716 	return crypto_shash_final(&sdesc->shash, outval);