int main(void)
{
size_t i;
crypto_secretbox_easy(c, m, 131, nonce, firstkey);
for (i = 0; i < 131 + crypto_secretbox_MACBYTES; ++i) {
printf(",0x%02x", (unsigned int)c[i]);
if (i % 8 == 7)
printf("\n");
}
printf("\n");
crypto_secretbox_detached(c, mac, m, 131, nonce, firstkey);
for (i = 0; i < crypto_secretbox_MACBYTES; ++i) {
printf(",0x%02x", (unsigned int)mac[i]);
if (i % 8 == 7)
printf("\n");
}
for (i = 0; i < 131; ++i) {
printf(",0x%02x", (unsigned int)c[i]);
if (i % 8 == 7)
printf("\n");
}
return 0;
}
int
crypto_box_detached(unsigned char *c, unsigned char *mac,
const unsigned char *m, unsigned long long mlen,
const unsigned char *n, const unsigned char *pk,
const unsigned char *sk)
{
unsigned char k[crypto_box_BEFORENMBYTES];
int ret;
(void) sizeof(int[crypto_box_BEFORENMBYTES >=
crypto_secretbox_KEYBYTES ? 1 : -1]);
crypto_box_beforenm(k, pk, sk);
ret = crypto_secretbox_detached(c, mac, m, mlen, n, k);
sodium_memzero(k, sizeof k);
return ret;
}
int main(void)
{
unsigned char *c;
unsigned char *mac;
size_t i;
c = (unsigned char *) sodium_malloc(131 + crypto_secretbox_MACBYTES + 1);
mac = (unsigned char *) sodium_malloc(crypto_secretbox_MACBYTES);
assert(c != NULL && mac != NULL);
crypto_secretbox_easy(c, m, 131, nonce, firstkey);
for (i = 0; i < 131 + crypto_secretbox_MACBYTES; ++i) {
printf(",0x%02x", (unsigned int)c[i]);
if (i % 8 == 7)
printf("\n");
}
printf("\n");
crypto_secretbox_detached(c, mac, m, 131, nonce, firstkey);
for (i = 0; i < crypto_secretbox_MACBYTES; ++i) {
printf(",0x%02x", (unsigned int)mac[i]);
if (i % 8 == 7)
printf("\n");
}
for (i = 0; i < 131; ++i) {
printf(",0x%02x", (unsigned int)c[i]);
if (i % 8 == 7)
printf("\n");
}
printf("\n");
/* Same test, with c and m overlapping */
memcpy(c + 1, m, 131);
crypto_secretbox_easy(c, c + 1, 131, nonce, firstkey);
for (i = 0; i < 131 + crypto_secretbox_MACBYTES; ++i) {
printf(",0x%02x", (unsigned int)c[i]);
if (i % 8 == 7)
printf("\n");
}
printf("\n");
memcpy(c, m, 131);
crypto_secretbox_easy(c + 1, c, 131, nonce, firstkey);
for (i = 0; i < 131 + crypto_secretbox_MACBYTES; ++i) {
printf(",0x%02x", (unsigned int)c[i + 1]);
if (i % 8 == 7)
printf("\n");
}
printf("\n");
memcpy(c, m, 131);
crypto_secretbox_easy(c, c, 131, nonce, firstkey);
for (i = 0; i < 131 + crypto_secretbox_MACBYTES; ++i) {
printf(",0x%02x", (unsigned int)c[i]);
if (i % 8 == 7)
printf("\n");
}
printf("\n");
assert(crypto_secretbox_easy(c, m, SIZE_MAX - 1U, nonce, firstkey) == -1);
sodium_free(mac);
sodium_free(c);
return 0;
}
