xref: /freebsd/contrib/ntp/sntp/crypto.h (revision c57c26179033f64c2011a2d2a904ee3fa62e826a)
1 #ifndef CRYPTO_H
2 #define CRYPTO_H
3 
4 #include <string.h>
5 #include <stdio.h>
6 #include <stdlib.h>
7 
8 #include <ntp_fp.h>
9 #include <ntp.h>
10 #include <ntp_stdlib.h>
11 #include "utilities.h"
12 #include "sntp-opts.h"
13 
14 #define LEN_PKT_MAC	LEN_PKT_NOMAC + sizeof(u_int32)
15 
16 /* #include "sntp-opts.h" */
17 
18 struct key {
19 	struct key *	next;
20 	keyid_t		key_id;
21 	size_t		key_len;
22 	int		typei;
23 	char		typen[20];
24 	char		key_seq[64];
25 };
26 
27 extern	int	auth_init(const char *keyfile, struct key **keys);
28 extern	void	get_key(keyid_t key_id, struct key **d_key);
29 extern	size_t	make_mac(const void *pkt_data, size_t pkt_len,
30 			 const struct key *cmp_key, void *digest,
31 			 size_t dig_sz);
32 extern	int	auth_md5(const void *pkt_data, size_t pkt_len,
33 			 size_t dig_len, const struct key *cmp_key);
34 
35 #endif
36