1
2#define TEST_NAME "box7"
3#include "cmptest.h"
4
5static unsigned char alicesk[crypto_box_SECRETKEYBYTES];
6static unsigned char alicepk[crypto_box_PUBLICKEYBYTES];
7static unsigned char bobsk[crypto_box_SECRETKEYBYTES];
8static unsigned char bobpk[crypto_box_PUBLICKEYBYTES];
9static unsigned char n[crypto_box_NONCEBYTES];
10
11int
12main(void)
13{
14    unsigned char *m;
15    unsigned char *c;
16    unsigned char *m2;
17    size_t         mlen;
18    size_t         mlen_max = 1000;
19    size_t         i;
20    int            ret;
21
22    m  = (unsigned char *) sodium_malloc(mlen_max);
23    c  = (unsigned char *) sodium_malloc(mlen_max);
24    m2 = (unsigned char *) sodium_malloc(mlen_max);
25    memset(m, 0, crypto_box_ZEROBYTES);
26    crypto_box_keypair(alicepk, alicesk);
27    crypto_box_keypair(bobpk, bobsk);
28    for (mlen = 0; mlen + crypto_box_ZEROBYTES <= mlen_max; mlen++) {
29        randombytes_buf(n, crypto_box_NONCEBYTES);
30        randombytes_buf(m + crypto_box_ZEROBYTES, mlen);
31        ret = crypto_box(c, m, mlen + crypto_box_ZEROBYTES, n, bobpk, alicesk);
32        assert(ret == 0);
33        if (crypto_box_open(m2, c, mlen + crypto_box_ZEROBYTES, n, alicepk,
34                            bobsk) == 0) {
35            for (i = 0; i < mlen + crypto_box_ZEROBYTES; ++i) {
36                if (m2[i] != m[i]) {
37                    printf("bad decryption\n");
38                    break;
39                }
40            }
41        } else {
42            printf("ciphertext fails verification\n");
43        }
44    }
45    sodium_free(m);
46    sodium_free(c);
47    sodium_free(m2);
48
49    return 0;
50}
51