1 
2 #define TEST_NAME "secretbox_easy"
3 #include "cmptest.h"
4 
5 static unsigned char firstkey[32] = { 0x1b, 0x27, 0x55, 0x64, 0x73, 0xe9, 0x85,
6                                       0xd4, 0x62, 0xcd, 0x51, 0x19, 0x7a, 0x9a,
7                                       0x46, 0xc7, 0x60, 0x09, 0x54, 0x9e, 0xac,
8                                       0x64, 0x74, 0xf2, 0x06, 0xc4, 0xee, 0x08,
9                                       0x44, 0xf6, 0x83, 0x89 };
10 
11 static unsigned char nonce[24] = { 0x69, 0x69, 0x6e, 0xe9, 0x55, 0xb6,
12                                    0x2b, 0x73, 0xcd, 0x62, 0xbd, 0xa8,
13                                    0x75, 0xfc, 0x73, 0xd6, 0x82, 0x19,
14                                    0xe0, 0x03, 0x6b, 0x7a, 0x0b, 0x37 };
15 
16 static unsigned char m[131] = {
17     0xbe, 0x07, 0x5f, 0xc5, 0x3c, 0x81, 0xf2, 0xd5, 0xcf, 0x14, 0x13, 0x16,
18     0xeb, 0xeb, 0x0c, 0x7b, 0x52, 0x28, 0xc5, 0x2a, 0x4c, 0x62, 0xcb, 0xd4,
19     0x4b, 0x66, 0x84, 0x9b, 0x64, 0x24, 0x4f, 0xfc, 0xe5, 0xec, 0xba, 0xaf,
20     0x33, 0xbd, 0x75, 0x1a, 0x1a, 0xc7, 0x28, 0xd4, 0x5e, 0x6c, 0x61, 0x29,
21     0x6c, 0xdc, 0x3c, 0x01, 0x23, 0x35, 0x61, 0xf4, 0x1d, 0xb6, 0x6c, 0xce,
22     0x31, 0x4a, 0xdb, 0x31, 0x0e, 0x3b, 0xe8, 0x25, 0x0c, 0x46, 0xf0, 0x6d,
23     0xce, 0xea, 0x3a, 0x7f, 0xa1, 0x34, 0x80, 0x57, 0xe2, 0xf6, 0x55, 0x6a,
24     0xd6, 0xb1, 0x31, 0x8a, 0x02, 0x4a, 0x83, 0x8f, 0x21, 0xaf, 0x1f, 0xde,
25     0x04, 0x89, 0x77, 0xeb, 0x48, 0xf5, 0x9f, 0xfd, 0x49, 0x24, 0xca, 0x1c,
26     0x60, 0x90, 0x2e, 0x52, 0xf0, 0xa0, 0x89, 0xbc, 0x76, 0x89, 0x70, 0x40,
27     0xe0, 0x82, 0xf9, 0x37, 0x76, 0x38, 0x48, 0x64, 0x5e, 0x07, 0x05
28 };
29 
30 int
31 main(void)
32 {
33     unsigned char *c;
34     unsigned char *mac;
35     size_t         i;
36 
37     c   = (unsigned char *) sodium_malloc(131 + crypto_secretbox_MACBYTES + 1);
38     mac = (unsigned char *) sodium_malloc(crypto_secretbox_MACBYTES);
39     assert(c != NULL && mac != NULL);
40 
41     crypto_secretbox_easy(c, m, 131, nonce, firstkey);
42     for (i = 0; i < 131 + crypto_secretbox_MACBYTES; ++i) {
43         printf(",0x%02x", (unsigned int) c[i]);
44     }
45     printf("\n");
46 
47     crypto_secretbox_detached(c, mac, m, 131, nonce, firstkey);
48     for (i = 0; i < crypto_secretbox_MACBYTES; ++i) {
49         printf(",0x%02x", (unsigned int) mac[i]);
50     }
51     for (i = 0; i < 131; ++i) {
52         printf(",0x%02x", (unsigned int) c[i]);
53     }
54     printf("\n");
55 
56     /* Same test, with c and m overlapping */
57 
58     memcpy(c + 1, m, 131);
59     crypto_secretbox_easy(c, c + 1, 131, nonce, firstkey);
60     for (i = 0; i < 131 + crypto_secretbox_MACBYTES; ++i) {
61         printf(",0x%02x", (unsigned int) c[i]);
62     }
63     printf("\n");
64 
65     memcpy(c, m, 131);
66     crypto_secretbox_easy(c + 1, c, 131, nonce, firstkey);
67     for (i = 0; i < 131 + crypto_secretbox_MACBYTES; ++i) {
68         printf(",0x%02x", (unsigned int) c[i + 1]);
69     }
70     printf("\n");
71 
72     memcpy(c, m, 131);
73     crypto_secretbox_easy(c, c, 131, nonce, firstkey);
74     for (i = 0; i < 131 + crypto_secretbox_MACBYTES; ++i) {
75         printf(",0x%02x", (unsigned int) c[i]);
76     }
77     printf("\n");
78 
79     assert(crypto_secretbox_easy(c, m, 0, nonce, firstkey) == 0);
80 
81     /* Null message */
82 
83     crypto_secretbox_easy(c, c, 0, nonce, firstkey);
84     for (i = 0; i < crypto_secretbox_MACBYTES + 1; ++i) {
85         printf(",0x%02x", (unsigned int) c[i]);
86     }
87     printf("\n");
88     if (crypto_secretbox_open_easy(c, c, crypto_secretbox_MACBYTES, nonce,
89                                    firstkey) != 0) {
90         printf("Null crypto_secretbox_open_easy() failed\n");
91     }
92     for (i = 0; i < crypto_secretbox_MACBYTES + 1; ++i) {
93         printf(",0x%02x", (unsigned int) c[i]);
94     }
95     printf("\n");
96     c[randombytes_uniform(crypto_secretbox_MACBYTES)]++;
97     if (crypto_secretbox_open_easy(c, c, crypto_secretbox_MACBYTES, nonce,
98                                    firstkey) != -1) {
99         printf("Null tampered crypto_secretbox_open_easy() failed\n");
100     }
101 
102     /* No overlap, but buffers are next to each other */
103 
104     memset(c, 0, 131 + crypto_secretbox_MACBYTES + 1);
105     memcpy(c, m, 20);
106     crypto_secretbox_easy(c, c + 10, 10, nonce, firstkey);
107     for (i = 0; i < 10 + crypto_secretbox_MACBYTES; ++i) {
108         printf(",0x%02x", (unsigned int) c[i]);
109     }
110     printf("\n");
111 
112     memset(c, 0, 131 + crypto_secretbox_MACBYTES + 1);
113     memcpy(c, m, 20);
114     crypto_secretbox_easy(c + 10, c, 10, nonce, firstkey);
115     for (i = 0; i < 10 + crypto_secretbox_MACBYTES; ++i) {
116         printf(",0x%02x", (unsigned int) c[i]);
117     }
118     printf("\n");
119 
120     sodium_free(mac);
121     sodium_free(c);
122 
123     return 0;
124 }
125