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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.
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package org.bouncycastle.pqc.jcajce.provider.lms;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.security.PublicKey;
import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;
import org.bouncycastle.crypto.CipherParameters;
import org.bouncycastle.pqc.crypto.lms.HSSPublicKeyParameters;
import org.bouncycastle.pqc.crypto.lms.LMSKeyParameters;
import org.bouncycastle.pqc.crypto.lms.LMSPublicKeyParameters;
import org.bouncycastle.pqc.crypto.util.PublicKeyFactory;
import org.bouncycastle.pqc.crypto.util.SubjectPublicKeyInfoFactory;
import org.bouncycastle.pqc.jcajce.interfaces.LMSKey;
import org.bouncycastle.util.Arrays;
import org.bouncycastle.util.Encodable;
public class BCLMSPublicKey
implements PublicKey, LMSKey
{
private static final long serialVersionUID = -5617456225328969766L;
private transient LMSKeyParameters keyParams;
public BCLMSPublicKey(
LMSKeyParameters keyParams)
{
this.keyParams = keyParams;
}
public BCLMSPublicKey(SubjectPublicKeyInfo keyInfo)
throws IOException
{
init(keyInfo);
}
private void init(SubjectPublicKeyInfo keyInfo)
throws IOException
{
this.keyParams = (LMSKeyParameters)PublicKeyFactory.createKey(keyInfo);
}
/**
* @return name of the algorithm - "LMS"
*/
public final String getAlgorithm()
{
return "LMS";
}
public byte[] getEncoded()
{
try
{
SubjectPublicKeyInfo pki = SubjectPublicKeyInfoFactory.createSubjectPublicKeyInfo(keyParams);
return pki.getEncoded();
}
catch (IOException e)
{
return null;
}
}
public String getFormat()
{
return "X.509";
}
CipherParameters getKeyParams()
{
return keyParams;
}
public boolean equals(Object o)
{
if (o == this)
{
return true;
}
if (o instanceof BCLMSPublicKey)
{
BCLMSPublicKey otherKey = (BCLMSPublicKey)o;
try
{
return Arrays.areEqual(keyParams.getEncoded(), otherKey.keyParams.getEncoded());
}
catch (IOException e)
{
return false;
}
}
return false;
}
public int hashCode()
{
try
{
return Arrays.hashCode(((Encodable)keyParams).getEncoded());
}
catch (IOException e)
{
// should never happen, but...
return -1;
}
}
public int getLevels()
{
if (keyParams instanceof LMSPublicKeyParameters)
{
return 1;
}
else
{
return ((HSSPublicKeyParameters)keyParams).getL();
}
}
private void readObject(
ObjectInputStream in)
throws IOException, ClassNotFoundException
{
in.defaultReadObject();
byte[] enc = (byte[])in.readObject();
init(SubjectPublicKeyInfo.getInstance(enc));
}
private void writeObject(
ObjectOutputStream out)
throws IOException
{
out.defaultWriteObject();
out.writeObject(this.getEncoded());
}
}