rostests/winetests/bcrypt/bcrypt.c

   1 /*
   2  * Unit test for bcrypt functions
   3  *
   4  * Copyright 2014 Bruno Jesus
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <ntstatus.h>
  22 #define WIN32_NO_STATUS
  23 #include <windows.h>
  24 #include <bcrypt.h>
  25
  26 #include "wine/test.h"
  27
  28 static NTSTATUS (WINAPI *pBCryptGenRandom)(BCRYPT_ALG_HANDLE hAlgorithm, PUCHAR pbBuffer,
  29                                            ULONG cbBuffer, ULONG dwFlags);
  30
  31 static BOOL Init(void)
  32 {
  33     HMODULE hbcrypt = LoadLibraryA("bcrypt.dll");
  34     if (!hbcrypt)
  35     {
  36         win_skip("bcrypt library not available\n");
  37         return FALSE;
  38     }
  39
  40     pBCryptGenRandom = (void *)GetProcAddress(hbcrypt, "BCryptGenRandom");
  41
  42     return TRUE;
  43 }
  44
  45 static void test_BCryptGenRandom(void)
  46 {
  47     NTSTATUS ret;
  48     UCHAR buffer[256];
  49
  50     if (!pBCryptGenRandom)
  51     {
  52         win_skip("BCryptGenRandom is not available\n");
  53         return;
  54     }
  55
  56     ret = pBCryptGenRandom(NULL, NULL, 0, 0);
  57     ok(ret == STATUS_INVALID_HANDLE, "Expected STATUS_INVALID_HANDLE, got 0x%x\n", ret);
  58     ret = pBCryptGenRandom(NULL, buffer, 0, 0);
  59     ok(ret == STATUS_INVALID_HANDLE, "Expected STATUS_INVALID_HANDLE, got 0x%x\n", ret);
  60     ret = pBCryptGenRandom(NULL, buffer, sizeof(buffer), 0);
  61     ok(ret == STATUS_INVALID_HANDLE, "Expected STATUS_INVALID_HANDLE, got 0x%x\n", ret);
  62     ret = pBCryptGenRandom(NULL, buffer, sizeof(buffer), BCRYPT_USE_SYSTEM_PREFERRED_RNG);
  63     ok(ret == STATUS_SUCCESS, "Expected success, got 0x%x\n", ret);
  64     ret = pBCryptGenRandom(NULL, buffer, sizeof(buffer),
  65           BCRYPT_USE_SYSTEM_PREFERRED_RNG|BCRYPT_RNG_USE_ENTROPY_IN_BUFFER);
  66     ok(ret == STATUS_SUCCESS, "Expected success, got 0x%x\n", ret);
  67     ret = pBCryptGenRandom(NULL, NULL, sizeof(buffer), BCRYPT_USE_SYSTEM_PREFERRED_RNG);
  68     ok(ret == STATUS_INVALID_PARAMETER, "Expected STATUS_INVALID_PARAMETER, got 0x%x\n", ret);
  69
  70     /* Zero sized buffer should work too */
  71     ret = pBCryptGenRandom(NULL, buffer, 0, BCRYPT_USE_SYSTEM_PREFERRED_RNG);
  72     ok(ret == STATUS_SUCCESS, "Expected success, got 0x%x\n", ret);
  73
  74     /* Test random number generation - It's impossible for a sane RNG to return 8 zeros */
  75     memset(buffer, 0, 16);
  76     ret = pBCryptGenRandom(NULL, buffer, 8, BCRYPT_USE_SYSTEM_PREFERRED_RNG);
  77     ok(ret == STATUS_SUCCESS, "Expected success, got 0x%x\n", ret);
  78     ok(memcmp(buffer, buffer + 8, 8), "Expected a random number, got 0\n");
  79 }
  80
  81 START_TEST(bcrypt)
  82 {
  83     if (!Init())
  84         return;
  85
  86     test_BCryptGenRandom();
  87 }