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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 with debug enabled.
package org.bouncycastle.pqc.jcajce.provider.sphincs;
import java.io.IOException;
import java.security.PublicKey;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;
import org.bouncycastle.crypto.CipherParameters;
import org.bouncycastle.pqc.asn1.PQCObjectIdentifiers;
import org.bouncycastle.pqc.asn1.SPHINCS256KeyParams;
import org.bouncycastle.pqc.crypto.sphincs.SPHINCSPublicKeyParameters;
import org.bouncycastle.pqc.jcajce.interfaces.SPHINCSKey;
import org.bouncycastle.util.Arrays;
public class BCSphincs256PublicKey
implements PublicKey, SPHINCSKey
{
private static final long serialVersionUID = 1L;
private final ASN1ObjectIdentifier treeDigest;
private final SPHINCSPublicKeyParameters params;
public BCSphincs256PublicKey(
ASN1ObjectIdentifier treeDigest,
SPHINCSPublicKeyParameters params)
{
this.treeDigest = treeDigest;
this.params = params;
}
public BCSphincs256PublicKey(SubjectPublicKeyInfo keyInfo)
{
this.treeDigest = SPHINCS256KeyParams.getInstance(keyInfo.getAlgorithm().getParameters()).getTreeDigest().getAlgorithm();
this.params = new SPHINCSPublicKeyParameters(keyInfo.getPublicKeyData().getBytes());
}
/**
* Compare this SPHINCS-256 public key with another object.
*
* @param o the other object
* @return the result of the comparison
*/
public boolean equals(Object o)
{
if (o == this)
{
return true;
}
if (o instanceof BCSphincs256PublicKey)
{
BCSphincs256PublicKey otherKey = (BCSphincs256PublicKey)o;
return treeDigest.equals(otherKey.treeDigest) && Arrays.areEqual(params.getKeyData(), otherKey.params.getKeyData());
}
return false;
}
public int hashCode()
{
return treeDigest.hashCode() + 37 * Arrays.hashCode(params.getKeyData());
}
/**
* @return name of the algorithm - "SPHINCS-256"
*/
public final String getAlgorithm()
{
return "SPHINCS-256";
}
public byte[] getEncoded()
{
SubjectPublicKeyInfo pki;
try
{
AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PQCObjectIdentifiers.sphincs256, new SPHINCS256KeyParams(new AlgorithmIdentifier(treeDigest)));
pki = new SubjectPublicKeyInfo(algorithmIdentifier, params.getKeyData());
return pki.getEncoded();
}
catch (IOException e)
{
return null;
}
}
public String getFormat()
{
return "X.509";
}
public byte[] getKeyData()
{
return params.getKeyData();
}
CipherParameters getKeyParams()
{
return params;
}
}
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