// 
// Decompiled by Procyon v0.6.0
// 

package org.bouncycastle.crypto.params;

import org.bouncycastle.crypto.CipherParameters;

public class XDHUPrivateParameters implements CipherParameters
{
    private AsymmetricKeyParameter staticPrivateKey;
    private AsymmetricKeyParameter ephemeralPrivateKey;
    private AsymmetricKeyParameter ephemeralPublicKey;
    
    public XDHUPrivateParameters(final AsymmetricKeyParameter asymmetricKeyParameter, final AsymmetricKeyParameter asymmetricKeyParameter2) {
        this(asymmetricKeyParameter, asymmetricKeyParameter2, null);
    }
    
    public XDHUPrivateParameters(final AsymmetricKeyParameter staticPrivateKey, final AsymmetricKeyParameter ephemeralPrivateKey, AsymmetricKeyParameter ephemeralPublicKey) {
        if (staticPrivateKey == null) {
            throw new NullPointerException("staticPrivateKey cannot be null");
        }
        if (!(staticPrivateKey instanceof X448PrivateKeyParameters) && !(staticPrivateKey instanceof X25519PrivateKeyParameters)) {
            throw new IllegalArgumentException("only X25519 and X448 paramaters can be used");
        }
        if (ephemeralPrivateKey == null) {
            throw new NullPointerException("ephemeralPrivateKey cannot be null");
        }
        if (!staticPrivateKey.getClass().isAssignableFrom(ephemeralPrivateKey.getClass())) {
            throw new IllegalArgumentException("static and ephemeral private keys have different domain parameters");
        }
        if (ephemeralPublicKey == null) {
            if (ephemeralPrivateKey instanceof X448PrivateKeyParameters) {
                ephemeralPublicKey = ((X448PrivateKeyParameters)ephemeralPrivateKey).generatePublicKey();
            }
            else {
                ephemeralPublicKey = ((X25519PrivateKeyParameters)ephemeralPrivateKey).generatePublicKey();
            }
        }
        else {
            if (ephemeralPublicKey instanceof X448PublicKeyParameters && !(staticPrivateKey instanceof X448PrivateKeyParameters)) {
                throw new IllegalArgumentException("ephemeral public key has different domain parameters");
            }
            if (ephemeralPublicKey instanceof X25519PublicKeyParameters && !(staticPrivateKey instanceof X25519PrivateKeyParameters)) {
                throw new IllegalArgumentException("ephemeral public key has different domain parameters");
            }
        }
        this.staticPrivateKey = staticPrivateKey;
        this.ephemeralPrivateKey = ephemeralPrivateKey;
        this.ephemeralPublicKey = ephemeralPublicKey;
    }
    
    public AsymmetricKeyParameter getStaticPrivateKey() {
        return this.staticPrivateKey;
    }
    
    public AsymmetricKeyParameter getEphemeralPrivateKey() {
        return this.ephemeralPrivateKey;
    }
    
    public AsymmetricKeyParameter getEphemeralPublicKey() {
        return this.ephemeralPublicKey;
    }
}