release/src/router/libsodium/test/default/auth7.c

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