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      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