private void TestSign(GMSSParameters CipherParam)
{
GMSSKeyGenerator mkgen = new GMSSKeyGenerator(CipherParam);
IAsymmetricKeyPair akp = mkgen.GenerateKeyPair();
byte[] data = new byte[200];
new VTDev.Libraries.CEXEngine.Crypto.Prng.CSPRng().GetBytes(data);
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!");
// get the next available key (private sub-key is used only once)
GMSSPrivateKey nk = ((GMSSPrivateKey)akp.PrivateKey).NextKey();
sgn.Initialize(nk);
code = sgn.Sign(new MemoryStream(data));
// verify the signature
sgn.Initialize(akp.PublicKey);
if (!sgn.Verify(new MemoryStream(data), code))
throw new Exception("RLWESignTest: Verify test failed!");
}
}
static double SignTest(int Iterations, GMSSParameters Param, bool Sign = true)
{
Stopwatch runTimer = new Stopwatch();
byte[] code;
GMSSKeyGenerator mkgen = new GMSSKeyGenerator(Param);
IAsymmetricKeyPair akp = mkgen.GenerateKeyPair();
byte[] data = new byte[200];
new CSPRng().GetBytes(data);
using (GMSSSign sgn = new GMSSSign(Param))
{
if (Sign)
{
sgn.Initialize(akp.PrivateKey);
runTimer.Start();
for (int i = 0; i < Iterations; i++)
code = sgn.Sign(data, 0, data.Length);
runTimer.Stop();
}
else
{
// sign the array first
sgn.Initialize(akp.PrivateKey);
code = sgn.Sign(data, 0, data.Length);
// init for verify
sgn.Initialize(akp.PublicKey);
runTimer.Start();
for (int i = 0; i < Iterations; i++)
sgn.Verify(data, 0, data.Length, code);
runTimer.Stop();
}
}
return runTimer.Elapsed.TotalMilliseconds;
}