tests/crypto_rng.c

   1
   2 #ifdef HAVE_CONFIG_H
   3 # include <config.h>
   4 #endif
   5
   6 #include <stdio.h>
   7
   8 #include "utils.h"
   9
  10 #include <gnutls/gnutls.h>
  11 #include <gnutls/crypto.h>
  12 #include "../lib/random.h"
  13
  14 void mylogfn( int level, const char*ptr)
  15 {
  16        printf ("Got Logs: ");
  17        if (ptr)
  18                printf ("%s", ptr);
  19 }
  20
  21 int rng_init( void** ctx)
  22 {
  23  return 0;
  24 }
  25
  26 int rng_rnd ( void* ctx, int level, void* data, int datasize)
  27 {
  28   memset(data, 1,datasize);
  29  return 0;
  30 }
  31
  32 void rng_deinit( void* ctx)
  33 {
  34 }
  35
  36 void
  37 doit (void)
  38 {
  39  int rc;
  40  char buf1[32];
  41  char buf2[32];
  42  int failed = 0;
  43  gnutls_crypto_rnd_st rng = { rng_init, rng_rnd, rng_deinit };
  44
  45
  46  rc = gnutls_crypto_rnd_register (0, &rng);
  47
  48  gnutls_global_init ();
  49
  50  memset(buf2, 1, sizeof(buf2));
  51
  52  _gnutls_rnd(GNUTLS_RND_KEY, buf1, sizeof(buf1));
  53
  54  if (memcmp( buf1, buf2, sizeof(buf1))!=0)
  55     failed = 1;
  56
  57  gnutls_global_deinit ();
  58
  59  if (failed == 0) {
  60    success("rng registered ok\n");
  61  } else {
  62     fail ("rng register test failed: %d\n", rc);
  63  }
  64 }