org.bouncycastle.jcajce.provider.ProvGOST3410PrivateKey Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bc-fips Show documentation

The FIPS 140-3 Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms certified to FIPS 140-3 level 1. This jar contains JCE provider and low-level API for the BC-FJA version 2.0.0, FIPS Certificate #4743. Please see certificate for certified platform details.

There is a newer version: 2.0.0

Show newest version

package org.bouncycastle.jcajce.provider;

import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.math.BigInteger;

import javax.security.auth.Destroyable;

import org.bouncycastle.crypto.Algorithm;
import org.bouncycastle.crypto.asymmetric.AsymmetricGOST3410PrivateKey;
import org.bouncycastle.jcajce.interfaces.GOST3410PrivateKey;
import org.bouncycastle.jcajce.spec.GOST3410DomainParameterSpec;
import org.bouncycastle.jcajce.spec.GOST3410ParameterSpec;
import org.bouncycastle.jcajce.spec.GOST3410PrivateKeySpec;

class ProvGOST3410PrivateKey
    implements Destroyable, GOST3410PrivateKey, ProvKey
{
    private static final long serialVersionUID = 8581661527592305464L;

    private transient AsymmetricGOST3410PrivateKey baseKey;

    ProvGOST3410PrivateKey(
        Algorithm algorithm,
        GOST3410PrivateKey key)
     {
         this.baseKey = new AsymmetricGOST3410PrivateKey(algorithm, GOST3410Util.convertToParams(key.getParams()), key.getX());
     }

    ProvGOST3410PrivateKey(
        Algorithm algorithm,
        GOST3410PrivateKeySpec keySpec)
    {
        this.baseKey = new AsymmetricGOST3410PrivateKey(algorithm, GOST3410Util.convertToParams(keySpec.getParams()), keySpec.getX());
    }

    ProvGOST3410PrivateKey(
        AsymmetricGOST3410PrivateKey key)
    {
        this.baseKey = key;
    }

    public BigInteger getX()
    {
        return baseKey.getX();
    }

    public GOST3410ParameterSpec getParams()
    {
        return GOST3410Util.convertToSpec(baseKey.getParameters());
    }

    public AsymmetricGOST3410PrivateKey getBaseKey()
    {
        KeyUtil.checkDestroyed(this);

        return baseKey;
    }

    public String getAlgorithm()
    {
        KeyUtil.checkDestroyed(this);

        return "GOST3410";
    }

    public String getFormat()
    {
        KeyUtil.checkDestroyed(this);

        return "PKCS#8";
    }

    public byte[] getEncoded()
    {
        return baseKey.getEncoded();
    }

    public void destroy()
    {
        baseKey.destroy();
    }

    public boolean isDestroyed()
    {
        return baseKey.isDestroyed();
    }

    public boolean equals(Object o)
    {
        if (o == this)
        {
            return true;
        }

        if (!(o instanceof ProvGOST3410PrivateKey))
        {
            return false;
        }

        ProvGOST3410PrivateKey other = (ProvGOST3410PrivateKey)o;

        return this.baseKey.equals(other.baseKey);
    }

    public String toString()
    {
        if (isDestroyed())
        {
             return KeyUtil.destroyedPrivateKeyToString("GOST3410");
        }
        else
        {
            try
            {
                return KeyUtil.privateKeyToString("GOST3410", baseKey.getX(), baseKey.getParameters().getDomainParameters());
            }
            catch (Exception e)
            {
                return KeyUtil.restrictedToString("GOST3410");
            }
        }
    }

    public int hashCode()
    {
        return baseKey.hashCode();
    }

    private void readObject(
        ObjectInputStream in)
        throws IOException, ClassNotFoundException
    {
        in.defaultReadObject();

        Algorithm alg = (Algorithm)in.readObject();

        byte[] enc = (byte[])in.readObject();

        baseKey = new AsymmetricGOST3410PrivateKey(alg, enc);
    }

    private void writeObject(
        ObjectOutputStream out)
        throws IOException
    {
        if (isDestroyed())
        {
            throw new IOException("key has been destroyed");
        }

        out.defaultWriteObject();

        out.writeObject(baseKey.getAlgorithm());
        out.writeObject(this.getEncoded());
    }
}