/* Find encryption params from ASN1_OBJECT */
const struct gost_cipher_info *get_encryption_params(ASN1_OBJECT *obj);
/* Implementation of GOST 28147-89 cipher in CFB and CNT modes */
-extern EVP_CIPHER cipher_gost;
-extern EVP_CIPHER cipher_gost_cbc;
-extern EVP_CIPHER cipher_gost_cpacnt;
-extern EVP_CIPHER cipher_gost_cpcnt_12;
+const EVP_CIPHER *cipher_gost();
+const EVP_CIPHER *cipher_gost_cbc();
+const EVP_CIPHER *cipher_gost_cpacnt();
+const EVP_CIPHER *cipher_gost_cpcnt_12();
+void cipher_gost_destroy();
# define EVP_MD_CTRL_KEY_LEN (EVP_MD_CTRL_ALG_CTRL+3)
# define EVP_MD_CTRL_SET_KEY (EVP_MD_CTRL_ALG_CTRL+4)
# define EVP_MD_CTRL_MAC_LEN (EVP_MD_CTRL_ALG_CTRL+5)