static async Task Main(string[] args)
{
// Import parameters for the elliptic curve prime256v1
var ecParameters = CustomNamedCurves.GetByOid(X9ObjectIdentifiers.Prime256v1);
var publicKeyStore = new InMemoryPublicKeyStore();
var publicKey = await publicKeyStore.GetAsync();
_initiator = new Initiator();
// 1. Initiate communication with a masked point P = r*T = r*Hash(t)
var init = _initiator.Initiate(ecParameters.Curve);
var t = init.t;
var r = init.r;
var P = init.P;
// 2. Generate token Q = k*P and proof (c,z) of correctness
var(Q, proofC, proofZ) = await _tokenApiClient.GenerateTokenAsync(ecParameters.Curve, P);
// 3. Randomise the token Q, by removing the mask r: W = (1/r)*Q = k*T. Also checks that proof (c,z) is correct.
var W = _initiator.RandomiseToken(ecParameters, publicKey.Q, P, Q, proofC, proofZ, r);
// 4. Verify that the token (t,W) is correct.
var isVerified = await _tokenApiClient.VerifyTokenAsync(t, W);
if (isVerified)
{
Console.WriteLine("Token is valid.");
}
else
{
Console.WriteLine("Token is invalid.");
Debug.Fail("Token is invalid.");
}
}
private void SetupWithInMemoryKeyStores()
{
var publicKeyStore = new InMemoryPublicKeyStore();
_publicKey = publicKeyStore.GetAsync().GetAwaiter().GetResult();
var privateKeyStore = new InMemoryPrivateKeyStore();
_privateKey = privateKeyStore.GetAsync().GetAwaiter().GetResult();
}
public ProtocolTests()
{
// Import parameters for the elliptic curve prime256v1
_ecParameters = CustomNamedCurves.GetByOid(X9ObjectIdentifiers.Prime256v1);
var publicKeyStore = new InMemoryPublicKeyStore();
_publicKey = publicKeyStore.GetAsync().GetAwaiter().GetResult();
var privateKeyStore = new InMemoryPrivateKeyStore();
_privateKey = privateKeyStore.GetAsync().GetAwaiter().GetResult();
_wrongPrivateKey = _privateKey.Add(BigInteger.One);
_initiator = new Initiator();
_tokenGenerator = new TokenGenerator();
_tokenVerifier = new TokenVerifier(new InMemorySeedStore());
}
