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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 JDK 1.5 to JDK 1.8.
package org.bouncycastle.pqc.jcajce.provider.qtesla;
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.qtesla.QTESLAPublicKeyParameters;
import org.bouncycastle.pqc.crypto.qtesla.QTESLASecurityCategory;
import org.bouncycastle.pqc.crypto.util.PublicKeyFactory;
import org.bouncycastle.pqc.crypto.util.SubjectPublicKeyInfoFactory;
import org.bouncycastle.pqc.jcajce.interfaces.QTESLAKey;
import org.bouncycastle.pqc.jcajce.spec.QTESLAParameterSpec;
import org.bouncycastle.util.Arrays;
public class BCqTESLAPublicKey
implements PublicKey, QTESLAKey
{
private static final long serialVersionUID = 1L;
private transient QTESLAPublicKeyParameters keyParams;
public BCqTESLAPublicKey(
QTESLAPublicKeyParameters keyParams)
{
this.keyParams = keyParams;
}
public BCqTESLAPublicKey(SubjectPublicKeyInfo keyInfo)
throws IOException
{
init(keyInfo);
}
private void init(SubjectPublicKeyInfo keyInfo)
throws IOException
{
this.keyParams = (QTESLAPublicKeyParameters)PublicKeyFactory.createKey(keyInfo);
}
/**
* @return name of the algorithm
*/
public final String getAlgorithm()
{
return QTESLASecurityCategory.getName(keyParams.getSecurityCategory());
}
public byte[] getEncoded()
{
try
{
SubjectPublicKeyInfo pki = SubjectPublicKeyInfoFactory.createSubjectPublicKeyInfo(keyParams);
return pki.getEncoded();
}
catch (IOException e)
{
return null;
}
}
public String getFormat()
{
return "X.509";
}
public QTESLAParameterSpec getParams()
{
return new QTESLAParameterSpec(getAlgorithm());
}
CipherParameters getKeyParams()
{
return keyParams;
}
public boolean equals(Object o)
{
if (o == this)
{
return true;
}
if (o instanceof BCqTESLAPublicKey)
{
BCqTESLAPublicKey otherKey = (BCqTESLAPublicKey)o;
return keyParams.getSecurityCategory() == otherKey.keyParams.getSecurityCategory()
&& Arrays.areEqual(keyParams.getPublicData(), otherKey.keyParams.getPublicData());
}
return false;
}
public int hashCode()
{
return keyParams.getSecurityCategory() + 37 * Arrays.hashCode(keyParams.getPublicData());
}
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());
}
}
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