5 digest.h -- header file digest.c
6 Copyright (C) 2007-2022 Guus Sliepen <guus@tinc-vpn.org>
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation, Inc.,
20 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
25 #define DIGEST_MAX_SIZE 64
26 #define DIGEST_ALGO_SIZE ((size_t) -1)
28 #ifndef DISABLE_LEGACY
31 #include "openssl/digest.h"
33 #include "gcrypt/digest.h"
35 #error Incorrect cryptographic library, please reconfigure.
38 typedef struct digest digest_t;
40 extern bool digest_open_by_name(digest_t *digest, const char *name, size_t maclength);
41 extern bool digest_open_by_nid(digest_t *digest, nid_t nid, size_t maclength);
42 extern digest_t *digest_alloc(void) ATTR_MALLOC;
43 extern void digest_free(digest_t **digest);
44 extern void digest_close(digest_t *digest);
45 extern bool digest_create(digest_t *digest, const void *indata, size_t inlen, void *outdata) ATTR_WARN_UNUSED;
46 extern bool digest_verify(digest_t *digest, const void *indata, size_t inlen, const void *digestdata) ATTR_WARN_UNUSED;
47 extern bool digest_set_key(digest_t *digest, const void *key, size_t len) ATTR_WARN_UNUSED;
48 extern nid_t digest_get_nid(const digest_t *digest);
49 extern size_t digest_keylength(const digest_t *digest);
50 extern size_t digest_length(const digest_t *digest);
51 extern bool digest_active(const digest_t *digest);
53 #endif // DISABLE_LEGACY
55 #endif // TINC_DIGEST_H