private static void TestSign(GMSSParameters CipherParam)
{
GMSSKeyGenerator mkgen = new GMSSKeyGenerator(CipherParam);
IAsymmetricKeyPair akp = mkgen.GenerateKeyPair();
byte[] data = new byte[200];
new VTDev.Libraries.CEXEngine.Crypto.Prng.CSPPrng().GetBytes(data);
// public key serialization test:
var pubKeySerialized = akp.PublicKey.ToBytes();
var pubKeyExported = $"-----BEGIN GMSS PUBLIC KEY-----{Environment.NewLine}{Convert.ToBase64String(pubKeySerialized, Base64FormattingOptions.InsertLineBreaks)}{Environment.NewLine}-----END GMSS PUBLIC KEY-----{Environment.NewLine}";
File.WriteAllText("TestPublicKey.txt", pubKeyExported);
var pubKeyImported = File.ReadAllText("TestPublicKey.txt").Replace($"-----BEGIN GMSS PUBLIC KEY-----{Environment.NewLine}", "").Replace($"-----END GMSS PUBLIC KEY-----{Environment.NewLine}", "");
var pubKey = GMSSPublicKey.From(Convert.FromBase64String(pubKeyImported));
var currentPrivKey = ((GMSSPrivateKey)akp.PrivateKey); //.NextKey();
for (int i = 0; i < 10; i++) //2000; i++)
{
try
{
//var test = JsonConvert.SerializeObject(akp);
using (GMSSSign sgn = new GMSSSign(CipherParam))
{
//////// sign the array
//////sgn.Initialize(akp.PrivateKey);
//////byte[] code = sgn.Sign(data, 0, data.Length);
//////// verify the signature
//////sgn.Initialize(akp.PublicKey);
//////if (!sgn.Verify(data, 0, data.Length, code))
////// throw new Exception("RLWESignTest: Sign operation failed!");
//if (i == 15)
try
{
//var test1 = JsonConvert.SerializeObject(currentPrivKey);
//var keyBytes = currentPrivKey.ToBytes();
//var currentPrivKeyCopy = currentPrivKey.DeepCopy();
// private key serialization test
//if (i == 19)
// currentPrivKey.DebugGetTreehashes("before");
var privKeySerialized = currentPrivKey.ToBytes();
var privKeyExported = $"-----BEGIN GMSS.{GMSSVersion} PRIVATE KEY-----{Environment.NewLine}{Convert.ToBase64String(privKeySerialized, Base64FormattingOptions.InsertLineBreaks)}{Environment.NewLine}-----END GMSS PRIVATE KEY-----{Environment.NewLine}";
File.WriteAllText("TestPrivateKey.txt", privKeyExported);
var privKeyImported = File.ReadAllText("TestPrivateKey.txt").Replace($"-----BEGIN GMSS.{GMSSVersion} PRIVATE KEY-----{Environment.NewLine}", "").Replace($"-----END GMSS PRIVATE KEY-----{Environment.NewLine}", "");
var currentPrivKeyRegen = GMSSPrivateKey.From(Convert.FromBase64String(privKeyImported));
//if (i == 19)
{
using (SHA512Managed sha = new SHA512Managed())
{
var test1 = Convert.ToBase64String(sha.ComputeHash(currentPrivKey.ToBytes()));
var test2 = Convert.ToBase64String(sha.ComputeHash(currentPrivKeyRegen.ToBytes()));
var iAmI = i;
if (test1 != test2)
{
//////GMSSPrivateKey.DEBUG_HIT_NOW = true;
var test1b = ByteArrayToString(currentPrivKey.ToBytes());
var test2b = ByteArrayToString(currentPrivKeyRegen.ToBytes());
}
else
{
}
}
}
// currentPrivKey.DebugGetTreehashes("after");
//var xxx = 1;
currentPrivKey = currentPrivKeyRegen;
//var testXXX = currentPrivKey.NextKey();
//var test2 = JsonConvert.SerializeObject(currentPrivKeyCopy);
//var test3 = JsonConvert.SerializeObject(currentPrivKey);
//if(test1 != test2 || test2 != test3)
//{
//}
//currentPrivKey = new GMSSPrivateKey()
//var test1 = currentPrivKey.IsUsed;
//using (SHA256Managed sha = new SHA256Managed())
//{
// var currentPrivKeyHash = Convert.ToBase64String(sha.ComputeHash(keyBytes));
//}
}
catch (Exception ex)
{
throw ex;
}
//////var test1 = currentPrivKey.ToBytes();
sgn.Initialize(currentPrivKey);
var code = sgn.Sign(new MemoryStream(data));
File.WriteAllText("TestSignature.txt", Convert.ToBase64String(code));
// verify the signature
sgn.Initialize(pubKey);
if (!sgn.Verify(new MemoryStream(data), code))
{
throw new Exception("RLWESignTest: Verify test failed!");
}
try
{
// get the next available key (private sub-key is used only once)
//////GMSSPrivateKey nk = ((GMSSPrivateKey)akp.PrivateKey).NextKey();
currentPrivKey = currentPrivKey.NextKey(); // ((GMSSPrivateKey)akp.PrivateKey).NextKey(); // currentPrivKey.NextKey();
}
catch (Exception ex)
{
throw ex;
}
}
}
catch (Exception ex)
{
throw ex;
}
}
}
public static GMSSPublicKey GetGMSSPublicKeyFromPemString(string keyPem)
{
return(GMSSPublicKey.From(Convert.FromBase64String(keyPem.Replace($"-----BEGIN GMSS.{GMSSVersion} PUBLIC KEY-----{Environment.NewLine}", "").Replace($"-----END GMSS PUBLIC KEY-----{Environment.NewLine}", ""))));
}
public static string GetPemStringFromGMSSPublicKey(GMSSPublicKey key)
{
return($"-----BEGIN GMSS.{GMSSVersion} PUBLIC KEY-----{Environment.NewLine}{Convert.ToBase64String(key.ToBytes(), Base64FormattingOptions.InsertLineBreaks)}{Environment.NewLine}-----END GMSS PUBLIC KEY-----{Environment.NewLine}");
}
private void TestEncode()
{
GMSSParameters mpar = GMSSParamSets.FromName(GMSSParamSets.GMSSParamNames.N2P10);
GMSSKeyGenerator mkgen = new GMSSKeyGenerator(mpar);
IAsymmetricKeyPair akp = mkgen.GenerateKeyPair();
GMSSPublicKey pub = (GMSSPublicKey)akp.PublicKey;
byte[] enc = pub.ToBytes();
using (GMSSPublicKey pub2 = GMSSPublicKey.From(enc))
{
if (!pub.Equals(pub2))
{
throw new Exception("EncryptionKey: public key comparison test failed!");
}
if (pub.GetHashCode() != pub2.GetHashCode())
{
throw new Exception("EncryptionKey: public key hash test failed!");
}
}
OnProgress(new TestEventArgs("Passed public key serialization"));
MemoryStream pubstr = pub.ToStream();
using (GMSSPublicKey pub2 = GMSSPublicKey.From(pubstr))
{
if (!pub.Equals(pub2))
{
throw new Exception("EncryptionKey: public key comparison test failed!");
}
if (pub.GetHashCode() != pub2.GetHashCode())
{
throw new Exception("EncryptionKey: public key hash test failed!");
}
}
pubstr.Dispose();
OnProgress(new TestEventArgs("Passed public key stream test"));
GMSSPrivateKey pri = (GMSSPrivateKey)akp.PrivateKey;
enc = pri.ToBytes();
using (GMSSPrivateKey pri2 = GMSSPrivateKey.From(enc))
{
if (!pri.Equals(pri2))
{
throw new Exception("EncryptionKey: private key comparison test failed!");
}
if (pri.GetHashCode() != pri2.GetHashCode())
{
throw new Exception("EncryptionKey: private key hash test failed!");
}
}
OnProgress(new TestEventArgs("Passed private key serialization"));
MemoryStream pristr = pri.ToStream();
using (GMSSPrivateKey pri2 = GMSSPrivateKey.From(pristr))
{
if (!pri.Equals(pri2))
{
throw new Exception("EncryptionKey: private key comparison test failed!");
}
if (pri.GetHashCode() != pri2.GetHashCode())
{
throw new Exception("EncryptionKey: private key hash test failed!");
}
}
pristr.Dispose();
OnProgress(new TestEventArgs("Passed private key stream test"));
pri.Dispose();
pub.Dispose();
}
