1 2 #define TEST_NAME "secretbox8" 3 #include "cmptest.h" 4 5 static unsigned char k[crypto_secretbox_KEYBYTES]; 6 static unsigned char n[crypto_secretbox_NONCEBYTES]; 7 static unsigned char m[10000]; 8 static unsigned char c[10000]; 9 static unsigned char m2[10000]; 10 11 int 12 main(void) 13 { 14 size_t mlen; 15 size_t i; 16 int caught; 17 18 for (mlen = 0; mlen < 1000 && mlen + crypto_secretbox_ZEROBYTES < sizeof m; 19 ++mlen) { 20 crypto_secretbox_keygen(k); 21 randombytes_buf(n, crypto_secretbox_NONCEBYTES); 22 randombytes_buf(m + crypto_secretbox_ZEROBYTES, mlen); 23 crypto_secretbox(c, m, mlen + crypto_secretbox_ZEROBYTES, n, k); 24 caught = 0; 25 while (caught < 10) { 26 c[rand() % (mlen + crypto_secretbox_ZEROBYTES)] = rand(); 27 if (crypto_secretbox_open(m2, c, mlen + crypto_secretbox_ZEROBYTES, 28 n, k) == 0) { 29 for (i = 0; i < mlen + crypto_secretbox_ZEROBYTES; ++i) { 30 if (m2[i] != m[i]) { 31 printf("forgery\n"); 32 return 100; 33 } 34 } 35 } else { 36 ++caught; 37 } 38 } 39 } 40 return 0; 41 } 42