1 #ifndef crypto_stream_salsa2012_H
2 #define crypto_stream_salsa2012_H
3 
4 /*
5  *  WARNING: This is just a stream cipher. It is NOT authenticated encryption.
6  *  While it provides some protection against eavesdropping, it does NOT
7  *  provide any security against active attacks.
8  *  Unless you know what you're doing, what you are looking for is probably
9  *  the crypto_box functions.
10  */
11 
12 #include <stddef.h>
13 #include "export.h"
14 
15 #ifdef __cplusplus
16 # ifdef __GNUC__
17 #  pragma GCC diagnostic ignored "-Wlong-long"
18 # endif
19 extern "C" {
20 #endif
21 
22 #define crypto_stream_salsa2012_KEYBYTES 32U
23 SODIUM_EXPORT
24 size_t crypto_stream_salsa2012_keybytes(void);
25 
26 #define crypto_stream_salsa2012_NONCEBYTES 8U
27 SODIUM_EXPORT
28 size_t crypto_stream_salsa2012_noncebytes(void);
29 
30 #define crypto_stream_salsa2012_MESSAGEBYTES_MAX SODIUM_SIZE_MAX
31 SODIUM_EXPORT
32 size_t crypto_stream_salsa2012_messagebytes_max(void);
33 
34 SODIUM_EXPORT
35 int crypto_stream_salsa2012(unsigned char *c, unsigned long long clen,
36                             const unsigned char *n, const unsigned char *k)
37             __attribute__ ((nonnull));
38 
39 SODIUM_EXPORT
40 int crypto_stream_salsa2012_xor(unsigned char *c, const unsigned char *m,
41                                 unsigned long long mlen, const unsigned char *n,
42                                 const unsigned char *k)
43             __attribute__ ((nonnull));
44 
45 SODIUM_EXPORT
46 void crypto_stream_salsa2012_keygen(unsigned char k[crypto_stream_salsa2012_KEYBYTES])
47             __attribute__ ((nonnull));
48 
49 #ifdef __cplusplus
50 }
51 #endif
52 
53 #endif
54