public override void PerformTest()
{
// Test with given key from NaccacheSternPaper (totally insecure)
NaccacheSternKeyParameters pubParameters = new NaccacheSternKeyParameters(false, g, n, sigma.BitLength);
NaccacheSternPrivateKeyParameters privParameters = new NaccacheSternPrivateKeyParameters(g, n, sigma
.BitLength, smallPrimes, phi_n);
AsymmetricCipherKeyPair pair = new AsymmetricCipherKeyPair(pubParameters, privParameters);
// Initialize Engines with KeyPair
if (debug)
{
Console.WriteLine("initializing encryption engine");
}
cryptEng.Init(true, pair.Public);
if (debug)
{
Console.WriteLine("initializing decryption engine");
}
decryptEng.Init(false, pair.Private);
byte[] data = paperTest.ToByteArray();
if (!new BigInteger(data).Equals(new BigInteger(enDeCrypt(data))))
{
Fail("failed NaccacheStern paper test");
}
//
// key generation test
//
//
// 768 Bit test
//
if (debug)
{
Console.WriteLine();
Console.WriteLine("768 Bit TEST");
}
// specify key generation parameters
NaccacheSternKeyGenerationParameters genParam
= new NaccacheSternKeyGenerationParameters(new SecureRandom(), 768, 8, 30);
// Initialize Key generator and generate key pair
NaccacheSternKeyPairGenerator pGen = new NaccacheSternKeyPairGenerator();
pGen.Init(genParam);
pair = pGen.GenerateKeyPair();
if (((NaccacheSternKeyParameters)pair.Public).Modulus.BitLength < 768)
{
Console.WriteLine("FAILED: key size is <786 bit, exactly "
+ ((NaccacheSternKeyParameters)pair.Public).Modulus.BitLength + " bit");
Fail("failed key generation (768) length test");
}
// Initialize Engines with KeyPair
if (debug)
{
Console.WriteLine("initializing " + genParam.Strength + " bit encryption engine");
}
cryptEng.Init(true, pair.Public);
if (debug)
{
Console.WriteLine("initializing " + genParam.Strength + " bit decryption engine");
}
decryptEng.Init(false, pair.Private);
// Basic data input
data = Hex.Decode(input);
if (!new BigInteger(1, data).Equals(new BigInteger(1, enDeCrypt(data))))
{
Fail("failed encryption decryption (" + genParam.Strength + ") basic test");
}
// Data starting with FF byte (would be interpreted as negative
// BigInteger)
data = Hex.Decode(edgeInput);
if (!new BigInteger(1, data).Equals(new BigInteger(1, enDeCrypt(data))))
{
Fail("failed encryption decryption (" + genParam.Strength + ") edgeInput test");
}
//
// 1024 Bit Test
//
/*
* if (debug)
* {
* Console.WriteLine();
* Console.WriteLine("1024 Bit TEST");
* }
*
* // specify key generation parameters
* genParam = new NaccacheSternKeyGenerationParameters(new SecureRandom(), 1024, 8, 40, debug);
*
* pGen.Init(genParam);
* pair = pGen.generateKeyPair();
*
* if (((NaccacheSternKeyParameters)pair.Public).getModulus().bitLength() < 1024)
* {
* if (debug)
* {
* Console.WriteLine("FAILED: key size is <1024 bit, exactly "
+ ((NaccacheSternKeyParameters)pair.Public).getModulus().bitLength() + " bit");
+ }
+ Fail("failed key generation (1024) length test");
+ }
+
+ // Initialize Engines with KeyPair
+
+ if (debug)
+ {
+ Console.WriteLine("initializing " + genParam.getStrength() + " bit encryption engine");
+ }
+ cryptEng.Init(true, pair.Public);
+
+ if (debug)
+ {
+ Console.WriteLine("initializing " + genParam.getStrength() + " bit decryption engine");
+ }
+ decryptEng.Init(false, pair.Private);
+
+ if (debug)
+ {
+ Console.WriteLine("Data is " + new BigInteger(1, data));
+ }
+
+ // Basic data input
+ data = Hex.Decode(input);
+
+ if (!new BigInteger(1, data).Equals(new BigInteger(1, enDeCrypt(data))))
+ {
+ Fail("failed encryption decryption (" + genParam.getStrength() + ") basic test");
+ }
+
+ // Data starting with FF byte (would be interpreted as negative
+ // BigInteger)
+
+ data = Hex.Decode(edgeInput);
+
+ if (!new BigInteger(1, data).Equals(new BigInteger(1, enDeCrypt(data))))
+ {
+ Fail("failed encryption decryption (" + genParam.getStrength() + ") edgeInput test");
+ }
*/
// END OF TEST CASE
try
{
new NaccacheSternEngine().ProcessBlock(new byte[] { 1 }, 0, 1);
Fail("failed initialisation check");
}
catch (InvalidOperationException)
{
// expected
}
if (debug)
{
Console.WriteLine("All tests successful");
}
}
/*
* (non-Javadoc)
*
* @see org.bouncycastle.crypto.AsymmetricCipherKeyPairGenerator#init(org.bouncycastle.crypto.KeyGenerationParameters)
*/
public void Init(KeyGenerationParameters parameters)
{
this.param = (NaccacheSternKeyGenerationParameters)parameters;
}
