public ECPublicKeyParameters ParsePublicKey(String X, String Y)
{
var c = (FpCurve)ECSpec.Curve;
var q = new FpPoint(ECP.Curve,
c.FromBigInteger(new BigInteger(X, 16)),
c.FromBigInteger(new BigInteger(Y, 16)));
return(q.IsValid()
? new ECPublicKeyParameters("ECDH", q, SecObjectIdentifiers.SecP192r1)
: null);
}
public ECPublicKeyParameters ParsePublicKey(String PublicKey,
PublicKeyFormats PublicKeyFormat = PublicKeyFormats.DER)
{
switch (PublicKeyFormat)
{
case PublicKeyFormats.DER:
return(new ECPublicKeyParameters("ECDSA", ECP.Curve.DecodePoint(PublicKey.HexStringToByteArray()), ECSpec));
case PublicKeyFormats.plain:
var c = (FpCurve)ECSpec.Curve;
var x = c.FromBigInteger(new BigInteger(PublicKey.Substring(0, 48), 16));
var y = c.FromBigInteger(new BigInteger(PublicKey.Substring(48), 16));
var q = new FpPoint(ECP.Curve, x, y);
var isv = q.IsValid();
return(new ECPublicKeyParameters("ECDH", q, SecObjectIdentifiers.SecP192r1));
}
return(null);
}