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

   1
   2 #define TEST_NAME "box8"
   3 #include "cmptest.h"
   4
   5 static unsigned char alicesk[crypto_box_SECRETKEYBYTES];
   6 static unsigned char alicepk[crypto_box_PUBLICKEYBYTES];
   7 static unsigned char bobsk[crypto_box_SECRETKEYBYTES];
   8 static unsigned char bobpk[crypto_box_PUBLICKEYBYTES];
   9 static unsigned char n[crypto_box_NONCEBYTES];
  10
  11 int main(void)
  12 {
  13     unsigned char *m;
  14     unsigned char *c;
  15     unsigned char *m2;
  16     size_t         mlen;
  17     size_t         mlen_max = 1000;
  18     size_t         i;
  19     int            faults;
  20     int            ret;
  21
  22     m = (unsigned char *) sodium_malloc(mlen_max);
  23     c = (unsigned char *) sodium_malloc(mlen_max);
  24     m2 = (unsigned char *) sodium_malloc(mlen_max);
  25     crypto_box_keypair(alicepk, alicesk);
  26     crypto_box_keypair(bobpk, bobsk);
  27     for (mlen = 0; mlen + crypto_box_ZEROBYTES <= mlen_max; mlen++) {
  28         randombytes_buf(n, crypto_box_NONCEBYTES);
  29         randombytes_buf(m + crypto_box_ZEROBYTES, mlen);
  30         ret = crypto_box(c, m, mlen + crypto_box_ZEROBYTES, n, bobpk, alicesk);
  31         assert(ret == 0);
  32 #ifdef BROWSER_TESTS
  33         faults = 1;
  34 #else
  35         faults = 5;
  36 #endif
  37         while (faults > 0) {
  38             c[rand() % (mlen + crypto_box_ZEROBYTES)] = rand();
  39             if (crypto_box_open(m2, c, mlen + crypto_box_ZEROBYTES, n, alicepk,
  40                                 bobsk) == 0) {
  41                 for (i = 0; i < mlen + crypto_box_ZEROBYTES; ++i) {
  42                     if (m2[i] != m[i]) {
  43                         printf("forgery\n");
  44                         return 100;
  45                     }
  46                 }
  47             } else {
  48                 faults--;
  49             }
  50         }
  51     }
  52     sodium_free(m);
  53     sodium_free(c);
  54     sodium_free(m2);
  55
  56     return 0;
  57 }