1*0ac341f1SConrad Meyer
2*0ac341f1SConrad Meyer #define TEST_NAME "auth7"
3*0ac341f1SConrad Meyer #include "cmptest.h"
4*0ac341f1SConrad Meyer
5*0ac341f1SConrad Meyer static unsigned char key[32];
6*0ac341f1SConrad Meyer static unsigned char c[600];
7*0ac341f1SConrad Meyer static unsigned char a[64];
8*0ac341f1SConrad Meyer
9*0ac341f1SConrad Meyer int
main(void)10*0ac341f1SConrad Meyer main(void)
11*0ac341f1SConrad Meyer {
12*0ac341f1SConrad Meyer size_t clen;
13*0ac341f1SConrad Meyer
14*0ac341f1SConrad Meyer for (clen = 0; clen < sizeof c; ++clen) {
15*0ac341f1SConrad Meyer crypto_auth_keygen(key);
16*0ac341f1SConrad Meyer randombytes_buf(c, clen);
17*0ac341f1SConrad Meyer crypto_auth_hmacsha512(a, c, clen, key);
18*0ac341f1SConrad Meyer if (crypto_auth_hmacsha512_verify(a, c, clen, key) != 0) {
19*0ac341f1SConrad Meyer printf("fail %u\n", (unsigned int) clen);
20*0ac341f1SConrad Meyer return 100;
21*0ac341f1SConrad Meyer }
22*0ac341f1SConrad Meyer if (clen > 0) {
23*0ac341f1SConrad Meyer c[(size_t) rand() % clen] += 1 + (rand() % 255);
24*0ac341f1SConrad Meyer if (crypto_auth_hmacsha512_verify(a, c, clen, key) == 0) {
25*0ac341f1SConrad Meyer printf("forgery %u\n", (unsigned int) clen);
26*0ac341f1SConrad Meyer return 100;
27*0ac341f1SConrad Meyer }
28*0ac341f1SConrad Meyer a[rand() % sizeof a] += 1 + (rand() % 255);
29*0ac341f1SConrad Meyer if (crypto_auth_hmacsha512_verify(a, c, clen, key) == 0) {
30*0ac341f1SConrad Meyer printf("forgery %u\n", (unsigned int) clen);
31*0ac341f1SConrad Meyer return 100;
32*0ac341f1SConrad Meyer }
33*0ac341f1SConrad Meyer }
34*0ac341f1SConrad Meyer }
35*0ac341f1SConrad Meyer return 0;
36*0ac341f1SConrad Meyer }
37