#define TEST_NAME "onetimeauth7" #include "cmptest.h" static unsigned char key[32]; static unsigned char c[1000]; static unsigned char a[16]; int main(void) { int clen; for (clen = 0; clen < 1000; ++clen) { randombytes_buf(key, sizeof key); randombytes_buf(c, clen); crypto_onetimeauth(a, c, clen, key); if (crypto_onetimeauth_verify(a, c, clen, key) != 0) { printf("fail %d\n", clen); return 100; } if (clen > 0) { c[rand() % clen] += 1 + (rand() % 255); if (crypto_onetimeauth_verify(a, c, clen, key) == 0) { printf("forgery %d\n", clen); return 100; } a[rand() % sizeof a] += 1 + (rand() % 255); if (crypto_onetimeauth_verify(a, c, clen, key) == 0) { printf("forgery %d\n", clen); return 100; } } } return 0; }