public SM2KeyExchangePublicParameters(
ECPublicKeyParameters staticPublicKey,
ECPublicKeyParameters ephemeralPublicKey)
{
if (staticPublicKey == null)
{
throw new ArgumentNullException("staticPublicKey");
}
if (ephemeralPublicKey == null)
{
throw new ArgumentNullException("ephemeralPublicKey");
}
if (!staticPublicKey.Parameters.Equals(ephemeralPublicKey.Parameters))
{
throw new ArgumentException("Static and ephemeral public keys have different domain parameters");
}
this.mStaticPublicKey = staticPublicKey;
this.mEphemeralPublicKey = ephemeralPublicKey;
}
public MqvPrivateParameters(
ECPrivateKeyParameters staticPrivateKey,
ECPrivateKeyParameters ephemeralPrivateKey,
ECPublicKeyParameters ephemeralPublicKey)
{
if (staticPrivateKey == null)
{
throw new ArgumentNullException("staticPrivateKey");
}
if (ephemeralPrivateKey == null)
{
throw new ArgumentNullException("ephemeralPrivateKey");
}
ECDomainParameters parameters = staticPrivateKey.Parameters;
if (!parameters.Equals(ephemeralPrivateKey.Parameters))
{
throw new ArgumentException("Static and ephemeral private keys have different domain parameters");
}
if (ephemeralPublicKey == null)
{
ECPoint q = new FixedPointCombMultiplier().Multiply(parameters.G, ephemeralPrivateKey.D);
ephemeralPublicKey = new ECPublicKeyParameters(q, parameters);
}
else if (!parameters.Equals(ephemeralPublicKey.Parameters))
{
throw new ArgumentException("Ephemeral public key has different domain parameters");
}
this.staticPrivateKey = staticPrivateKey;
this.ephemeralPrivateKey = ephemeralPrivateKey;
this.ephemeralPublicKey = ephemeralPublicKey;
}
protected bool Equals(
ECPublicKeyParameters other)
{
return(q.Equals(other.q) && base.Equals(other));
}