public void TestComputeProofOfWork()
{
var d = new ProofOfWorkDetails
{
difficulty = 15,
challenge = ByteHelper.GetRandom(31)
};
var res = DiffieHellmanHelper.ComputeProofOfWork(d, out byte[] proof);
Assert.IsTrue(res);
VerifyPow(d, proof);
}
public void TestPerformances()
{
var difficulties = new int[] { 15, 16, 17, 18, 19, 20, 21, 22 };
var results = new long[difficulties.Length * 2];
var loops = 50L;
for (var k = 0; k < loops; k++)
{
var d = new ProofOfWorkDetails
{
challenge = ByteHelper.GetRandom(31)
};
for (var i = 0; i < difficulties.Length; i++)
{
var sw1 = Stopwatch.StartNew();
d.difficulty = (byte)difficulties[i];
var res = DiffieHellmanHelper.ComputeProofOfWork(d, out byte[] proof);
Assert.IsTrue(res);
sw1.Stop();
var sw2 = Stopwatch.StartNew();
VerifyPow(d, proof);
sw2.Stop();
results[i * 2] += sw1.ElapsedMilliseconds;
results[i * 2 + 1] += sw2.ElapsedMilliseconds;
}
}
for (var i = 0; i < difficulties.Length; i++)
{
var msg = string.Format("Difficulty {0}, proof {1}ms, verification {2}ms", difficulties[i], results[i * 2] / loops, results[i * 2 + 1] / loops);
TestContext.WriteLine(msg);
}
}
private void VerifyPow(ProofOfWorkDetails details, byte[] proof)
{
var res = new ProofOfWork <SHA256>(HashHelper.Sha256, details.difficulty, details.challenge).Verify(proof);
Assert.IsTrue(res);
}
public static bool ComputeProofOfWork(this ProofOfWorkDetails details, out byte[] proof)
{
var computer = new ProofOfWork <SHA256>(HashHelper.Sha256, details.difficulty, details.challenge);
return(computer.Compute(out proof));
}