static void test_BCryptGenRandom(void)
{
NTSTATUS ret;
UCHAR buffer[256];
if (!pBCryptGenRandom)
{
win_skip("BCryptGenRandom is not available\n");
return;
}
ret = pBCryptGenRandom(NULL, NULL, 0, 0);
ok(ret == STATUS_INVALID_HANDLE, "Expected STATUS_INVALID_HANDLE, got 0x%x\n", ret);
ret = pBCryptGenRandom(NULL, buffer, 0, 0);
ok(ret == STATUS_INVALID_HANDLE, "Expected STATUS_INVALID_HANDLE, got 0x%x\n", ret);
ret = pBCryptGenRandom(NULL, buffer, sizeof(buffer), 0);
ok(ret == STATUS_INVALID_HANDLE, "Expected STATUS_INVALID_HANDLE, got 0x%x\n", ret);
ret = pBCryptGenRandom(NULL, buffer, sizeof(buffer), BCRYPT_USE_SYSTEM_PREFERRED_RNG);
ok(ret == STATUS_SUCCESS, "Expected success, got 0x%x\n", ret);
ret = pBCryptGenRandom(NULL, buffer, sizeof(buffer),
BCRYPT_USE_SYSTEM_PREFERRED_RNG|BCRYPT_RNG_USE_ENTROPY_IN_BUFFER);
ok(ret == STATUS_SUCCESS, "Expected success, got 0x%x\n", ret);
ret = pBCryptGenRandom(NULL, NULL, sizeof(buffer), BCRYPT_USE_SYSTEM_PREFERRED_RNG);
ok(ret == STATUS_INVALID_PARAMETER, "Expected STATUS_INVALID_PARAMETER, got 0x%x\n", ret);
/* Zero sized buffer should work too */
ret = pBCryptGenRandom(NULL, buffer, 0, BCRYPT_USE_SYSTEM_PREFERRED_RNG);
ok(ret == STATUS_SUCCESS, "Expected success, got 0x%x\n", ret);
/* Test random number generation - It's impossible for a sane RNG to return 8 zeros */
memset(buffer, 0, 16);
ret = pBCryptGenRandom(NULL, buffer, 8, BCRYPT_USE_SYSTEM_PREFERRED_RNG);
ok(ret == STATUS_SUCCESS, "Expected success, got 0x%x\n", ret);
ok(memcmp(buffer, buffer + 8, 8), "Expected a random number, got 0\n");
}
static void test_rng(void)
{
BCRYPT_ALG_HANDLE alg;
ULONG size, len;
UCHAR buf[16];
NTSTATUS ret;
alg = NULL;
ret = pBCryptOpenAlgorithmProvider(&alg, BCRYPT_RNG_ALGORITHM, MS_PRIMITIVE_PROVIDER, 0);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
ok(alg != NULL, "alg not set\n");
len = size = 0xdeadbeef;
ret = pBCryptGetProperty(alg, BCRYPT_OBJECT_LENGTH, (UCHAR *)&len, sizeof(len), &size, 0);
ok(ret == STATUS_NOT_SUPPORTED, "got %08x\n", ret);
test_alg_name(alg, "RNG");
memset(buf, 0, 16);
ret = pBCryptGenRandom(alg, buf, 8, 0);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
ok(memcmp(buf, buf + 8, 8), "got zeroes\n");
ret = pBCryptCloseAlgorithmProvider(alg, 0);
ok(ret == STATUS_SUCCESS, "got %08x\n", ret);
}