release/src/router/dnscrypt/src/libnacl/tests/box8.c

   1 #include <stdio.h>
   2 #include "crypto_box.h"
   3 #include "randombytes.h"
   4 #include "windows/windows-quirks.h"
   5
   6 unsigned char alicesk[crypto_box_SECRETKEYBYTES];
   7 unsigned char alicepk[crypto_box_PUBLICKEYBYTES];
   8 unsigned char bobsk[crypto_box_SECRETKEYBYTES];
   9 unsigned char bobpk[crypto_box_PUBLICKEYBYTES];
  10 unsigned char n[crypto_box_NONCEBYTES];
  11 unsigned char m[10000];
  12 unsigned char c[10000];
  13 unsigned char m2[10000];
  14
  15 main()
  16 {
  17   int mlen;
  18   int i;
  19   int caught;
  20
  21   for (mlen = 0;mlen < 1000 && mlen + crypto_box_ZEROBYTES < sizeof m;++mlen) {
  22     crypto_box_keypair(alicepk,alicesk);
  23     crypto_box_keypair(bobpk,bobsk);
  24     randombytes(n,crypto_box_NONCEBYTES);
  25     randombytes(m + crypto_box_ZEROBYTES,mlen);
  26     crypto_box(c,m,mlen + crypto_box_ZEROBYTES,n,bobpk,alicesk);
  27     caught = 0;
  28     while (caught < 10) {
  29       c[random() % (mlen + crypto_box_ZEROBYTES)] = random();
  30       if (crypto_box_open(m2,c,mlen + crypto_box_ZEROBYTES,n,alicepk,bobsk) == 0) {
  31         for (i = 0;i < mlen + crypto_box_ZEROBYTES;++i)
  32           if (m2[i] != m[i]) {
  33             printf("forgery\n");
  34             return 100;
  35           }
  36       } else {
  37         ++caught;
  38       }
  39     }
  40   }
  41   return 0;
  42 }