1 
2 #define TEST_NAME "stream2"
3 #include "cmptest.h"
4 
5 static const unsigned char secondkey[32] = {
6     0xdc, 0x90, 0x8d, 0xda, 0x0b, 0x93, 0x44,
7     0xa9, 0x53, 0x62, 0x9b, 0x73, 0x38, 0x20,
8     0x77, 0x88, 0x80, 0xf3, 0xce, 0xb4, 0x21,
9     0xbb, 0x61, 0xb9, 0x1c, 0xbd, 0x4c, 0x3e,
10     0x66, 0x25, 0x6c, 0xe4
11 };
12 
13 static const unsigned char noncesuffix[8] = {
14     0x82, 0x19, 0xe0, 0x03, 0x6b, 0x7a, 0x0b, 0x37
15 };
16 
17 
18 
19 int
main(void)20 main(void)
21 {
22     unsigned char *output;
23     char          *hex;
24     unsigned char  h[32];
25     size_t         sizeof_hex = 32 * 2 + 1;
26     size_t         sizeof_output = 4194304;
27     int            i;
28 
29     output = (unsigned char *) sodium_malloc(sizeof_output);
30     hex = (char *) sodium_malloc(sizeof_hex);
31 
32     crypto_stream_salsa20(output, sizeof_output, noncesuffix, secondkey);
33     crypto_hash_sha256(h, output, sizeof_output);
34     sodium_bin2hex(hex, sizeof_hex, h, sizeof h);
35     printf("%s\n", hex);
36 
37     assert(sizeof_output > 4000);
38 
39     crypto_stream_salsa20_xor_ic(output, output, 4000, noncesuffix, 0U,
40                                  secondkey);
41     for (i = 0; i < 4000; i++) {
42         assert(output[i] == 0);
43     }
44 
45     crypto_stream_salsa20_xor_ic(output, output, 4000, noncesuffix, 1U,
46                                  secondkey);
47     crypto_hash_sha256(h, output, sizeof_output);
48     sodium_bin2hex(hex, sizeof_hex, h, sizeof h);
49     printf("%s\n", hex);
50 
51     sodium_free(hex);
52     sodium_free(output);
53 
54     assert(crypto_stream_salsa20_keybytes() > 0U);
55     assert(crypto_stream_salsa20_noncebytes() > 0U);
56     assert(crypto_stream_salsa20_messagebytes_max() > 0U);
57 
58     return 0;
59 }
60