release/src/router/libsodium/test/default/box8.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include "windows/windows-quirks.h"
   4
   5 #define TEST_NAME "box8"
   6 #include "cmptest.h"
   7
   8 unsigned char alicesk[crypto_box_SECRETKEYBYTES];
   9 unsigned char alicepk[crypto_box_PUBLICKEYBYTES];
  10 unsigned char bobsk[crypto_box_SECRETKEYBYTES];
  11 unsigned char bobpk[crypto_box_PUBLICKEYBYTES];
  12 unsigned char n[crypto_box_NONCEBYTES];
  13 unsigned char m[10000];
  14 unsigned char c[10000];
  15 unsigned char m2[10000];
  16
  17 int main(void)
  18 {
  19   size_t mlen;
  20   size_t i;
  21   int caught;
  22
  23   for (mlen = 0;mlen < 1000 && mlen + crypto_box_ZEROBYTES < sizeof m;++mlen) {
  24     crypto_box_keypair(alicepk,alicesk);
  25     crypto_box_keypair(bobpk,bobsk);
  26     randombytes(n,crypto_box_NONCEBYTES);
  27     randombytes(m + crypto_box_ZEROBYTES,mlen);
  28     crypto_box(c,m,mlen + crypto_box_ZEROBYTES,n,bobpk,alicesk);
  29     caught = 0;
  30     while (caught < 10) {
  31       c[rand() % (mlen + crypto_box_ZEROBYTES)] = rand();
  32       if (crypto_box_open(m2,c,mlen + crypto_box_ZEROBYTES,n,alicepk,bobsk) == 0) {
  33         for (i = 0;i < mlen + crypto_box_ZEROBYTES;++i)
  34           if (m2[i] != m[i]) {
  35             printf("forgery\n");
  36             return 100;
  37           }
  38       } else {
  39         ++caught;
  40       }
  41     }
  42   }
  43   return 0;
  44 }