-extern bool cipher_open_by_name(struct cipher *, const char *);
-extern bool cipher_open_by_nid(struct cipher *, int);
-extern bool cipher_open_blowfish_ofb(struct cipher *);
-extern void cipher_close(struct cipher *);
-extern size_t cipher_keylength(const struct cipher *);
-extern void cipher_get_key(const struct cipher *, void *);
-extern bool cipher_set_key(struct cipher *, void *, bool);
-extern bool cipher_set_key_from_rsa(struct cipher *, void *, size_t, bool);
-extern bool cipher_regenerate_key(struct cipher *, bool);
-extern bool cipher_encrypt(struct cipher *, const void *indata, size_t inlen, void *outdata, size_t *outlen, bool oneshot);
-extern bool cipher_decrypt(struct cipher *, const void *indata, size_t inlen, void *outdata, size_t *outlen, bool oneshot);
-extern int cipher_get_nid(const struct cipher *);
-extern bool cipher_active(const struct cipher *);
-