2 cipher.h -- header file cipher.c
3 Copyright (C) 2007 Guus Sliepen <guus@tinc-vpn.org>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #ifndef __TINC_CIPHER_H__
23 #define __TINC_CIPHER_H__
25 #include <openssl/evp.h>
27 typedef struct cipher {
29 const EVP_CIPHER *cipher;
35 extern bool cipher_open_by_name(cipher_t *, const char *);
36 extern bool cipher_open_by_nid(cipher_t *, int);
37 extern bool cipher_open_blowfish_ofb(cipher_t *);
38 extern void cipher_close(cipher_t *);
39 extern size_t cipher_keylength(const cipher_t *);
40 extern void cipher_get_key(const cipher_t *, void *);
41 extern bool cipher_set_key(cipher_t *, void *, bool);
42 extern bool cipher_set_key_from_rsa(cipher_t *, void *, size_t, bool);
43 extern bool cipher_regenerate_key(cipher_t *, bool);
44 extern bool cipher_encrypt(cipher_t *, const void *indata, size_t inlen, void *outdata, size_t *outlen, bool);
45 extern bool cipher_decrypt(cipher_t *, const void *indata, size_t inlen, void *outdata, size_t *outlen, bool);
46 extern int cipher_get_nid(const cipher_t *);
47 extern bool cipher_active(const cipher_t *);