public static EphemeralKeyPair Generate(string curveName)
{
var ecp = CustomNamedCurves.GetByName(curveName);
var ecs = new ECDomainParameters(ecp.Curve, ecp.G, ecp.N, ecp.H, ecp.GetSeed());
var g = new ECKeyPairGenerator();
g.Init(new ECKeyGenerationParameters(ecs, new SecureRandom()));
var pair = g.GenerateKeyPair();
var agree = new ECDHBasicAgreement();
agree.Init(pair.Private);
var pubkey = MarshalCurvePoint(((ECPublicKeyParameters)pair.Public).Q);
var done = new GenerateSharedKeyDelegate(theirPub =>
{
var point = UnmarshalCurvePoint(ecp.Curve, theirPub);
var key = new ECPublicKeyParameters(point, ecs);
return(agree.CalculateAgreement(key).ToByteArray());
});
return(new EphemeralKeyPair(pubkey, done));
}
public EphemeralKeyPair(byte[] publicKey, GenerateSharedKeyDelegate generator)
{
PublicKey = publicKey;
_generator = generator;
}
