release/src/router/dnscrypt/src/libnacl/tests/box7.c

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