static double Decrypt(int Iterations, MPKCParameters Param)
{
MPKCKeyGenerator mkgen = new MPKCKeyGenerator(Param);
IAsymmetricKeyPair akp = mkgen.GenerateKeyPair();
byte[] ptext = new CSPRng().GetBytes(64);
byte[] rtext = new byte[64];
byte[] ctext;
Stopwatch runTimer = new Stopwatch();
using (MPKCEncrypt mpe = new MPKCEncrypt(Param))
{
mpe.Initialize(akp.PublicKey);
ctext = mpe.Encrypt(ptext);
mpe.Initialize(akp.PrivateKey);
runTimer.Start();
for (int i = 0; i < Iterations; i++)
rtext = mpe.Decrypt(ctext);
runTimer.Stop();
}
//if (!Compare.AreEqual(ptext, rtext))
// throw new Exception("Encryption test: decryption failure!");
return runTimer.Elapsed.TotalMilliseconds;
}
/// <summary>
/// Get the asymmetric cipher instance
/// </summary>
///
/// <param name="Parameters">The cipher parameters</param>
///
/// <returns>The cipher instance</returns>
private IAsymmetricCipher GetAsymmetricCipher(IAsymmetricParameters Parameters)
{
IAsymmetricCipher cipher = null;
try
{
if (Parameters.GetType().Equals(typeof(NTRUParameters)))
cipher = new NTRUEncrypt((NTRUParameters)Parameters);
else if (Parameters.GetType().Equals(typeof(MPKCParameters)))
cipher = new MPKCEncrypt((MPKCParameters)Parameters);
else if (Parameters.GetType().Equals(typeof(RLWEParameters)))
cipher = new RLWEEncrypt((RLWEParameters)Parameters);
return cipher;
}
catch (Exception ex)
{
throw new CryptoProcessingException("DtmKex:GetAsymmetricCipher", "The cipher could not be loaded!", ex);
}
}
static double Encrypt(int Iterations, MPKCParameters Param)
{
MPKCKeyGenerator mkgen = new MPKCKeyGenerator(Param);
IAsymmetricKeyPair akp = mkgen.GenerateKeyPair();
byte[] ptext = new CSPRng().GetBytes(64);
byte[] ctext;
Stopwatch runTimer = new Stopwatch();
using (MPKCEncrypt mpe = new MPKCEncrypt(Param))
{
mpe.Initialize(akp.PublicKey);
runTimer.Start();
for (int i = 0; i < Iterations; i++)
ctext = mpe.Encrypt(ptext);
runTimer.Stop();
}
return runTimer.Elapsed.TotalMilliseconds;
}
static void FullCycle()
{
MPKCParameters mpar = MPKCParamSets.MPKCFM11T40S256; //APR2011743FAST
MPKCKeyGenerator mkgen = new MPKCKeyGenerator(mpar);
IAsymmetricKeyPair akp = mkgen.GenerateKeyPair();
byte[] enc;
using (MPKCEncrypt mpe = new MPKCEncrypt(mpar))
{
mpe.Initialize(akp.PublicKey);
byte[] data = new byte[mpe.MaxPlainText];
enc = mpe.Encrypt(data);
mpe.Initialize(akp.PrivateKey);
byte[] dec = mpe.Decrypt(enc);
if (!Compare.AreEqual(dec, data))
throw new Exception("Encryption test: decryption failure!");
}
}
private void TestEncrypt()
{
MPKCParameters mpar = (MPKCParameters)MPKCParamSets.MPKCFM11T40S256.DeepCopy();
MPKCKeyGenerator mkgen = new MPKCKeyGenerator(mpar);
IAsymmetricKeyPair akp = mkgen.GenerateKeyPair();
byte[] enc;
// Fujisaki
using (MPKCEncrypt mpe = new MPKCEncrypt(mpar))
{
mpe.Initialize(akp.PublicKey);
int sz = mpe.MaxPlainText - 1;
byte[] data = new byte[sz];
new CSPRng().GetBytes(data);
enc = mpe.Encrypt(data);
mpe.Initialize(akp.PrivateKey);
byte[] dec = mpe.Decrypt(enc);
if (!Compare.AreEqual(dec, data))
throw new Exception("Encryption test: decryption failure!");
OnProgress(new TestEventArgs("Passed Fujisaki encryption test"));
}
// KobaraLmai
using (MPKCEncrypt mpe = new MPKCEncrypt(mpar))
{
mpar = (MPKCParameters)MPKCParamSets.MPKCFM11T40S256.DeepCopy();
mpe.Initialize(akp.PublicKey);
int sz = mpe.MaxPlainText - 1;
byte[] data = new byte[sz];
new VTDev.Libraries.CEXEngine.Crypto.Prng.CSPRng().GetBytes(data);
enc = mpe.Encrypt(data);
mpe.Initialize(akp.PrivateKey);
byte[] dec = mpe.Decrypt(enc);
if (!Compare.AreEqual(dec, data))
throw new Exception("Encryption test: decryption failure!");
OnProgress(new TestEventArgs("Passed KobaraImai encryption test"));
}
// Pointcheval
using (MPKCEncrypt mpe = new MPKCEncrypt(mpar))
{
mpar = (MPKCParameters)MPKCParamSets.MPKCFM11T40S256.DeepCopy();
mpe.Initialize(akp.PublicKey);
int sz = mpe.MaxPlainText - 1;
byte[] data = new byte[sz];
new VTDev.Libraries.CEXEngine.Crypto.Prng.CSPRng().GetBytes(data);
enc = mpe.Encrypt(data);
mpe.Initialize(akp.PrivateKey);
byte[] dec = mpe.Decrypt(enc);
if (!Compare.AreEqual(dec, data))
throw new Exception("Encryption test: decryption failure!");
OnProgress(new TestEventArgs("Passed Pointcheval encryption test"));
}
}
private void TestKey()
{
MPKCParameters encParams = (MPKCParameters)MPKCParamSets.MPKCFM11T40S256.DeepCopy();
MPKCKeyGenerator keyGen = new MPKCKeyGenerator(encParams);
IAsymmetricKeyPair keyPair = keyGen.GenerateKeyPair();
byte[] enc, dec, data;
// encrypt an array
using (MPKCEncrypt cipher = new MPKCEncrypt(encParams))
{
cipher.Initialize(keyPair.PublicKey);
data = new byte[66];
new CSPRng().GetBytes(data);
enc = cipher.Encrypt(data);
}
// decrypt the cipher text
using (MPKCEncrypt cipher = new MPKCEncrypt(encParams))
{
cipher.Initialize(keyPair.PrivateKey);
dec = cipher.Decrypt(enc);
}
if (!Compare.AreEqual(dec, data))
throw new Exception("TestKey test: decryption failure!");
OnProgress(new TestEventArgs("Passed sub-key test"));
}
private void TestEncode()
{
MPKCParameters mpar = (MPKCParameters)MPKCParamSets.MPKCFM11T40S256.DeepCopy();
MPKCKeyGenerator mkgen = new MPKCKeyGenerator(mpar);
IAsymmetricKeyPair akp = mkgen.GenerateKeyPair();
MPKCPublicKey pub = (MPKCPublicKey)akp.PublicKey;
byte[] enc = pub.ToBytes();
using (MPKCPublicKey pub2 = MPKCPublicKey.From(enc))
{
if (!pub.Equals(pub2))
throw new Exception("EncryptionKey: public key comparison test failed!");
}
OnProgress(new TestEventArgs("Passed public key serialization"));
MemoryStream pubstr = pub.ToStream();
using (MPKCPublicKey pub2 = MPKCPublicKey.From(pubstr))
{
if (!pub.Equals(pub2))
throw new Exception("EncryptionKey: public key comparison test failed!");
}
pubstr.Dispose();
OnProgress(new TestEventArgs("Passed public key stream test"));
MPKCPrivateKey pri = (MPKCPrivateKey)akp.PrivateKey;
enc = pri.ToBytes();
using (MPKCPrivateKey pri2 = new MPKCPrivateKey(enc))
{
if (!pri.Equals(pri2))
throw new Exception("EncryptionKey: private key comparison test failed!");
}
OnProgress(new TestEventArgs("Passed private key serialization"));
MemoryStream pristr = pri.ToStream();
using (MPKCPrivateKey pri2 = MPKCPrivateKey.From(pristr))
{
if (!pri.Equals(pri2))
throw new Exception("EncryptionKey: private key comparison test failed!");
}
pristr.Dispose();
OnProgress(new TestEventArgs("Passed private key stream test"));
using (MPKCEncrypt mpe = new MPKCEncrypt(mpar))
{
mpe.Initialize(akp.PublicKey);
int sz = mpe.MaxPlainText - 1;
byte[] data = new byte[sz];
new VTDev.Libraries.CEXEngine.Crypto.Prng.CSPRng().GetBytes(data);
enc = mpe.Encrypt(data);
mpe.Initialize(akp.PrivateKey);
byte[] dec = mpe.Decrypt(enc);
if (!Compare.AreEqual(dec, data))
throw new Exception("EncryptionKey: decryption failure!");
OnProgress(new TestEventArgs("Passed encryption test"));
}
pri.Dispose();
pub.Dispose();
}
