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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.7.

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package org.spongycastle.crypto.params;

import org.spongycastle.crypto.CipherParameters;

public class MQVPrivateParameters
    implements CipherParameters
{
    private ECPrivateKeyParameters staticPrivateKey;
    private ECPrivateKeyParameters ephemeralPrivateKey;
    private ECPublicKeyParameters ephemeralPublicKey;

    public MQVPrivateParameters(
        ECPrivateKeyParameters  staticPrivateKey,
        ECPrivateKeyParameters  ephemeralPrivateKey)
    {
        this(staticPrivateKey, ephemeralPrivateKey, null);
    }

    public MQVPrivateParameters(
        ECPrivateKeyParameters  staticPrivateKey,
        ECPrivateKeyParameters  ephemeralPrivateKey,
        ECPublicKeyParameters   ephemeralPublicKey)
    {
        this.staticPrivateKey = staticPrivateKey;
        this.ephemeralPrivateKey = ephemeralPrivateKey;
        this.ephemeralPublicKey = ephemeralPublicKey;
    }

    public ECPrivateKeyParameters getStaticPrivateKey()
    {
        return staticPrivateKey;
    }

    public ECPrivateKeyParameters getEphemeralPrivateKey()
    {
        return ephemeralPrivateKey;
    }

    public ECPublicKeyParameters getEphemeralPublicKey()
    {
        return ephemeralPublicKey;
    }
}