linux-master/crypto/shash.c

31 int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
38 static void shash_set_needkey(struct crypto_shash *tfm, struct shash_alg *alg)
41 		crypto_shash_set_flags(tfm, CRYPTO_TFM_NEED_KEY);
44 int crypto_shash_setkey(struct crypto_shash *tfm, const u8 *key,
47 	struct shash_alg *shash = crypto_shash_alg(tfm);
50 	err = shash->setkey(tfm, key, keylen);
52 		shash_set_needkey(tfm, shash);
56 	crypto_shash_clear_flags(tfm, CRYPTO_TFM_NEED_KEY);
64 	struct shash_alg *shash = crypto_shash_alg(desc->tfm);
78 	struct shash_alg *shash = crypto_shash_alg(desc->tfm);
93 	struct shash_alg *shash = crypto_shash_alg(desc->tfm);
102 	struct crypto_shash *tfm = desc->tfm;
103 	struct shash_alg *shash = crypto_shash_alg(tfm);
122 	struct shash_alg *shash = crypto_shash_alg(desc->tfm);
131 	struct crypto_shash *tfm = desc->tfm;
132 	struct shash_alg *shash = crypto_shash_alg(tfm);
142 	if (crypto_shash_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
151 int crypto_shash_tfm_digest(struct crypto_shash *tfm, const u8 *data,
154 	SHASH_DESC_ON_STACK(desc, tfm);
157 	desc->tfm = tfm;
169 	struct crypto_shash *tfm = desc->tfm;
170 	struct shash_alg *shash = crypto_shash_alg(tfm);
175 	memcpy(out, shash_desc_ctx(desc), crypto_shash_descsize(tfm));
182 	struct crypto_shash *tfm = desc->tfm;
183 	struct shash_alg *shash = crypto_shash_alg(tfm);
185 	if (crypto_shash_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
191 	memcpy(shash_desc_ctx(desc), in, crypto_shash_descsize(tfm));
196 static void crypto_shash_exit_tfm(struct crypto_tfm *tfm)
198 	struct crypto_shash *hash = __crypto_shash_cast(tfm);
204 static int crypto_shash_init_tfm(struct crypto_tfm *tfm)
206 	struct crypto_shash *hash = __crypto_shash_cast(tfm);
215 		tfm->exit = crypto_shash_exit_tfm;
317 	struct crypto_tfm *tfm = crypto_shash_tfm(hash);
323 		tfm = crypto_tfm_get(tfm);
324 		if (IS_ERR(tfm))
325 			return ERR_CAST(tfm);
333 	nhash = crypto_clone_tfm(&crypto_shash_type, tfm);