release/src/router/dnscrypt/src/libnacl/tests/secretbox6.cpp

   1 #include <string>
   2 using std::string;
   3 #include <stdlib.h>
   4 #include <stdio.h>
   5 #include "crypto_secretbox.h"
   6 #include "randombytes.h"
   7
   8 main()
   9 {
  10   int mlen;
  11   for (mlen = 0;mlen < 1000;++mlen) {
  12     unsigned char kbytes[crypto_secretbox_KEYBYTES];
  13     randombytes(kbytes,crypto_secretbox_KEYBYTES);
  14     string k((char *) kbytes,crypto_secretbox_KEYBYTES);
  15     unsigned char nbytes[crypto_secretbox_NONCEBYTES];
  16     randombytes(nbytes,crypto_secretbox_NONCEBYTES);
  17     string n((char *) nbytes,crypto_secretbox_NONCEBYTES);
  18     unsigned char mbytes[mlen];
  19     randombytes(mbytes,mlen);
  20     string m((char *) mbytes,mlen);
  21     string c = crypto_secretbox(m,n,k);
  22     int caught = 0;
  23     while (caught < 10) {
  24       c.replace(random() % c.size(),1,1,random());
  25       try {
  26         string m2 = crypto_secretbox_open(c,n,k);
  27         if (m != m2) {
  28           printf("forgery\n");
  29           return 100;
  30         }
  31       } catch(const char *s) {
  32         if (string(s) == string("ciphertext fails verification"))
  33           ++caught;
  34         else {
  35           printf("%s\n",s);
  36           return 111;
  37         }
  38       }
  39     }
  40   }
  41   return 0;
  42 }