org.bouncycastle.jcajce.spec.MQVParameterSpec Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bcprov-ext-debug-jdk18on Show documentation

The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for Java 1.8 and later with debug enabled.

The newest version!

package org.bouncycastle.jcajce.spec;

import java.security.KeyPair;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.spec.AlgorithmParameterSpec;

import org.bouncycastle.util.Arrays;

/**
 * Parameter spec to provide MQV ephemeral keys and user keying material.
 */
public class MQVParameterSpec
    implements AlgorithmParameterSpec
{
    private final PublicKey ephemeralPublicKey;
    private final PrivateKey ephemeralPrivateKey;
    private final PublicKey otherPartyEphemeralKey;
    private final byte[] userKeyingMaterial;

    public MQVParameterSpec(PublicKey ephemeralPublicKey, PrivateKey ephemeralPrivateKey, PublicKey otherPartyEphemeralKey, byte[] userKeyingMaterial)
    {
        this.ephemeralPublicKey = ephemeralPublicKey;
        this.ephemeralPrivateKey = ephemeralPrivateKey;
        this.otherPartyEphemeralKey = otherPartyEphemeralKey;
        this.userKeyingMaterial = Arrays.clone(userKeyingMaterial);
    }

    public MQVParameterSpec(PublicKey ephemeralPublicKey, PrivateKey ephemeralPrivateKey, PublicKey otherPartyEphemeralKey)
    {
        this(ephemeralPublicKey, ephemeralPrivateKey, otherPartyEphemeralKey, null);
    }

    public MQVParameterSpec(KeyPair ephemeralKeyPair, PublicKey otherPartyEphemeralKey, byte[] userKeyingMaterial)
    {
        this(ephemeralKeyPair.getPublic(), ephemeralKeyPair.getPrivate(), otherPartyEphemeralKey, userKeyingMaterial);
    }

    public MQVParameterSpec(PrivateKey ephemeralPrivateKey, PublicKey otherPartyEphemeralKey, byte[] userKeyingMaterial)
    {
        this(null, ephemeralPrivateKey, otherPartyEphemeralKey, userKeyingMaterial);
    }

    public MQVParameterSpec(KeyPair ephemeralKeyPair, PublicKey otherPartyEphemeralKey)
    {
        this(ephemeralKeyPair.getPublic(), ephemeralKeyPair.getPrivate(), otherPartyEphemeralKey, null);
    }

    public MQVParameterSpec(PrivateKey ephemeralPrivateKey, PublicKey otherPartyEphemeralKey)
    {
        this(null, ephemeralPrivateKey, otherPartyEphemeralKey, null);
    }

    public PrivateKey getEphemeralPrivateKey()
    {
        return ephemeralPrivateKey;
    }

    public PublicKey getEphemeralPublicKey()
    {
        return ephemeralPublicKey;
    }

    public PublicKey getOtherPartyEphemeralKey()
    {
        return otherPartyEphemeralKey;
    }

    public byte[] getUserKeyingMaterial()
    {
        return Arrays.clone(userKeyingMaterial);
    }
}