public static byte[] GetSeed( int length) { SecureRandom master = Master; master.SetSeed(DateTime.Now.Ticks); return(master.GenerateSeed(length)); }
private static SecureString GenerateNewMachineKey(int keySize) { var random = new SecureRandom(); random.SetSeed(random.GenerateSeed(128)); var machineKeyString = ""; for (var x = 0; x < keySize; x++) { machineKeyString += (char)random.Next(33, 126); } return machineKeyString.ConvertToSecureString(); }
private void RandMult(string label, X9ECParameters spec) { ECCurve C = spec.Curve; ECPoint G = (ECPoint)spec.G; BigInteger n = spec.N; SecureRandom random = new SecureRandom(); random.SetSeed(DateTimeUtilities.CurrentUnixMs()); Console.WriteLine(label); int[] coords = ECCurve.GetAllCoordinateSystems(); for (int i = 0; i < coords.Length; ++i) { int coord = coords[i]; if (C.SupportsCoordinateSystem(coord)) { ECCurve c = C; ECPoint g = G; bool defaultCoord = (c.CoordinateSystem == coord); if (!defaultCoord) { c = C.Configure().SetCoordinateSystem(coord).Create(); g = c.ImportPoint(G); } double avgRate = RandMult(random, g, n); string coordName = COORD_NAMES[coord]; StringBuilder sb = new StringBuilder(); sb.Append(" "); sb.Append(defaultCoord ? '*' : ' '); sb.Append(coordName); for (int j = sb.Length; j < 30; ++j) { sb.Append(' '); } sb.Append(": "); sb.Append(avgRate); sb.Append(" mults/sec"); for (int j = sb.Length; j < 64; ++j) { sb.Append(' '); } sb.Append('('); sb.Append(1000.0 / avgRate); sb.Append(" millis/mult)"); Console.WriteLine(sb.ToString()); } } }
public override void PerformTest() { SecureRandom rand = new SecureRandom(new byte[20]); rand.SetSeed(DateTime.Now.Ticks); doTestPadding(new Pkcs7Padding(), rand, Hex.Decode("ffffff0505050505"), Hex.Decode("0000000004040404")); Pkcs7Padding padder = new Pkcs7Padding(); try { padder.PadCount(new byte[8]); Fail("invalid padding not detected"); } catch (InvalidCipherTextException e) { if (!"pad block corrupted".Equals(e.Message)) { Fail("wrong exception for corrupt padding: " + e); } } doTestPadding(new ISO10126d2Padding(), rand, null, null); doTestPadding(new X923Padding(), rand, null, null); doTestPadding(new TbcPadding(), rand, Hex.Decode("ffffff0000000000"), Hex.Decode("00000000ffffffff")); doTestPadding(new ZeroBytePadding(), rand, Hex.Decode("ffffff0000000000"), null); doTestPadding(new ISO7816d4Padding(), rand, Hex.Decode("ffffff8000000000"), Hex.Decode("0000000080000000")); }
public void Test1000() { byte[] testData = new byte[10000]; SecureRandom rand = new SecureRandom(); rand.SetSeed(0); for (int i = 0; i != 10; i++) { CmsCompressedDataStreamGenerator gen = new CmsCompressedDataStreamGenerator(); MemoryStream bOut = new MemoryStream(); Stream cOut = gen.Open(bOut, CmsCompressedDataStreamGenerator.ZLib); rand.NextBytes(testData); cOut.Write(testData, 0, testData.Length); cOut.Close(); CmsCompressedDataParser ed = new CmsCompressedDataParser(bOut.ToArray()); Assert.IsTrue(Arrays.AreEqual(testData, CmsTestUtil.StreamToByteArray(ed.GetContent().ContentStream))); } }
private void RandomTests() { SecureRandom srng = new SecureRandom(); srng.SetSeed(DateTimeUtilities.CurrentUnixMs()); for (int i = 0; i < 10; ++i) { RandomTest(srng); } }
private void RandomTests() { SecureRandom srng = new SecureRandom(); srng.SetSeed(DateTimeUtilities.CurrentUnixMs()); RandomTests(srng, null); RandomTests(srng, new BasicGcmMultiplier()); RandomTests(srng, new Tables8kGcmMultiplier()); RandomTests(srng, new Tables64kGcmMultiplier()); }