summaryrefslogtreecommitdiffstats
path: root/external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/include/sodium/crypto_stream_salsa20.h
blob: 1c06512ba262135a62d29da37f5e5a862e466542 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
#ifndef crypto_stream_salsa20_H
#define crypto_stream_salsa20_H

/*
 *  WARNING: This is just a stream cipher. It is NOT authenticated encryption.
 *  While it provides some protection against eavesdropping, it does NOT
 *  provide any security against active attacks.
 *  Unless you know what you're doing, what you are looking for is probably
 *  the crypto_box functions.
 */

#include <stddef.h>
#include <stdint.h>
#include "export.h"

#ifdef __cplusplus
# if __GNUC__
#  pragma GCC diagnostic ignored "-Wlong-long"
# endif
extern "C" {
#endif

#define crypto_stream_salsa20_KEYBYTES 32U
SODIUM_EXPORT
size_t crypto_stream_salsa20_keybytes(void);

#define crypto_stream_salsa20_NONCEBYTES 8U
SODIUM_EXPORT
size_t crypto_stream_salsa20_noncebytes(void);

SODIUM_EXPORT
int crypto_stream_salsa20(unsigned char *c, unsigned long long clen,
                          const unsigned char *n, const unsigned char *k);

SODIUM_EXPORT
int crypto_stream_salsa20_xor(unsigned char *c, const unsigned char *m,
                              unsigned long long mlen, const unsigned char *n,
                              const unsigned char *k);

SODIUM_EXPORT
int crypto_stream_salsa20_xor_ic(unsigned char *c, const unsigned char *m,
                                 unsigned long long mlen,
                                 const unsigned char *n, uint64_t ic,
                                 const unsigned char *k);
#ifdef __cplusplus
}
#endif

#endif