/*
    * GordianKnot: Security Suite
    * Copyright 2012-2026. Tony Washer
    *
    * Licensed under the Apache License, Version 2.0 (the "License"); you may not
    * use this file except in compliance with the License.  You may obtain a copy
    * of the License at
    *
    *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
   * License for the specific language governing permissions and limitations under
   * the License.
   */
  package io.github.tonywasher.joceanus.gordianknot.impl.jca;
  
  import io.github.tonywasher.joceanus.gordianknot.api.base.GordianException;
  import io.github.tonywasher.joceanus.gordianknot.api.base.GordianLength;
  import io.github.tonywasher.joceanus.gordianknot.api.keypair.GordianKeyPair;
  import io.github.tonywasher.joceanus.gordianknot.api.keypair.spec.GordianKeyPairSpec;
  import io.github.tonywasher.joceanus.gordianknot.api.keypair.spec.GordianXMSSSpec.GordianXMSSDigestType;
  import io.github.tonywasher.joceanus.gordianknot.impl.core.base.GordianBaseFactory;
  import io.github.tonywasher.joceanus.gordianknot.impl.core.exc.GordianCryptoException;
  import io.github.tonywasher.joceanus.gordianknot.impl.core.exc.GordianLogicException;
  import io.github.tonywasher.joceanus.gordianknot.impl.core.keypair.GordianCoreKeyPairGenerator;
  import io.github.tonywasher.joceanus.gordianknot.impl.core.keypair.GordianKeyPairValidity;
  import io.github.tonywasher.joceanus.gordianknot.impl.core.spec.keypair.GordianCoreDHSpec;
  import io.github.tonywasher.joceanus.gordianknot.impl.core.spec.keypair.GordianCoreDSASpec;
  import io.github.tonywasher.joceanus.gordianknot.impl.core.spec.keypair.GordianCoreKeyPairSpec;
  import io.github.tonywasher.joceanus.gordianknot.impl.core.spec.keypair.GordianCoreLMSSpec;
  import io.github.tonywasher.joceanus.gordianknot.impl.core.spec.keypair.GordianCoreXMSSSpec;
  import io.github.tonywasher.joceanus.gordianknot.impl.jca.JcaKeyPair.JcaDHPrivateKey;
  import io.github.tonywasher.joceanus.gordianknot.impl.jca.JcaKeyPair.JcaDHPublicKey;
  import io.github.tonywasher.joceanus.gordianknot.impl.jca.JcaKeyPair.JcaPrivateKey;
  import io.github.tonywasher.joceanus.gordianknot.impl.jca.JcaKeyPair.JcaPublicKey;
  import io.github.tonywasher.joceanus.gordianknot.impl.jca.JcaKeyPair.JcaStateAwareKeyPair;
  import io.github.tonywasher.joceanus.gordianknot.impl.jca.JcaKeyPair.JcaStateAwarePrivateKey;
  import org.bouncycastle.crypto.params.DHParameters;
  import org.bouncycastle.jcajce.provider.asymmetric.dh.BCDHPrivateKey;
  import org.bouncycastle.jcajce.provider.asymmetric.dh.BCDHPublicKey;
  import org.bouncycastle.jcajce.spec.DHDomainParameterSpec;
  import org.bouncycastle.jcajce.spec.EdDSAParameterSpec;
  import org.bouncycastle.jcajce.spec.MLDSAParameterSpec;
  import org.bouncycastle.jcajce.spec.MLKEMParameterSpec;
  import org.bouncycastle.jcajce.spec.SLHDSAParameterSpec;
  import org.bouncycastle.jcajce.spec.XDHParameterSpec;
  import org.bouncycastle.jce.spec.ElGamalParameterSpec;
  import org.bouncycastle.pqc.crypto.lms.LMSParameters;
  import org.bouncycastle.pqc.jcajce.spec.BIKEParameterSpec;
  import org.bouncycastle.pqc.jcajce.spec.CMCEParameterSpec;
  import org.bouncycastle.pqc.jcajce.spec.FalconParameterSpec;
  import org.bouncycastle.pqc.jcajce.spec.FrodoParameterSpec;
  import org.bouncycastle.pqc.jcajce.spec.HQCParameterSpec;
  import org.bouncycastle.pqc.jcajce.spec.LMSHSSKeyGenParameterSpec;
  import org.bouncycastle.pqc.jcajce.spec.LMSKeyGenParameterSpec;
  import org.bouncycastle.pqc.jcajce.spec.MayoParameterSpec;
  import org.bouncycastle.pqc.jcajce.spec.NTRULPRimeParameterSpec;
  import org.bouncycastle.pqc.jcajce.spec.NTRUParameterSpec;
  import org.bouncycastle.pqc.jcajce.spec.NTRUPlusParameterSpec;
  import org.bouncycastle.pqc.jcajce.spec.PicnicParameterSpec;
  import org.bouncycastle.pqc.jcajce.spec.SABERParameterSpec;
  import org.bouncycastle.pqc.jcajce.spec.SNTRUPrimeParameterSpec;
  import org.bouncycastle.pqc.jcajce.spec.SnovaParameterSpec;
  import org.bouncycastle.pqc.jcajce.spec.XMSSMTParameterSpec;
  import org.bouncycastle.pqc.jcajce.spec.XMSSParameterSpec;
  
  import java.security.InvalidAlgorithmParameterException;
  import java.security.KeyFactory;
  import java.security.KeyPair;
  import java.security.KeyPairGenerator;
  import java.security.NoSuchAlgorithmException;
  import java.security.PrivateKey;
  import java.security.PublicKey;
  import java.security.spec.AlgorithmParameterSpec;
  import java.security.spec.ECGenParameterSpec;
  import java.security.spec.InvalidKeySpecException;
  import java.security.spec.PKCS8EncodedKeySpec;
  import java.security.spec.X509EncodedKeySpec;
  import java.util.Arrays;
  
  /**
   * Jca KeyPair generator.
   */
  public abstract class JcaKeyPairGenerator
          extends GordianCoreKeyPairGenerator {
      /**
       * Parse error.
       */
      private static final String PARSE_ERROR = "Failed to parse encoding";
  
      /**
       * Factory.
       */
      private KeyFactory theFactory;
  
      /**
       * Constructor.
      *
      * @param pFactory the Security Factory
      * @param pKeySpec the keySpec
      */
     JcaKeyPairGenerator(final GordianBaseFactory pFactory,
                         final GordianKeyPairSpec pKeySpec) {
         super(pFactory, pKeySpec);
     }
 
     /**
      * Obtain Set the key factory.
      *
      * @return the keyFactory
      */
     KeyFactory getKeyFactory() {
         return theFactory;
     }
 
     /**
      * Set the key factory.
      *
      * @param pFactory the keyFactory
      */
     void setKeyFactory(final KeyFactory pFactory) {
         theFactory = pFactory;
     }
 
     @Override
     public PKCS8EncodedKeySpec getPKCS8Encoding(final GordianKeyPair pKeyPair) throws GordianException {
         /* Check the keyPair */
         JcaKeyPair.checkKeyPair(pKeyPair);
 
         /* derive the encoding */
         final JcaPrivateKey myPrivateKey = (JcaPrivateKey) getPrivateKey(pKeyPair);
         return new PKCS8EncodedKeySpec(myPrivateKey.getPrivateKey().getEncoded());
     }
 
     @Override
     public X509EncodedKeySpec getX509Encoding(final GordianKeyPair pKeyPair) throws GordianException {
         /* Check the keyPair */
         JcaKeyPair.checkKeyPair(pKeyPair);
 
         /* derive the encoding */
         final JcaPublicKey myPublicKey = (JcaPublicKey) getPublicKey(pKeyPair);
         return new X509EncodedKeySpec(myPublicKey.getPublicKey().getEncoded());
     }
 
     @Override
     public JcaKeyPair deriveKeyPair(final X509EncodedKeySpec pPublicKey,
                                     final PKCS8EncodedKeySpec pPrivateKey) throws GordianException {
         /* Protect against exceptions */
         try {
             /* Check the keySpec */
             checkKeySpec(pPrivateKey);
 
             /* derive the keyPair */
             final JcaPublicKey myPublic = derivePublicKey(pPublicKey);
             final JcaPrivateKey myPrivate = createPrivate(theFactory.generatePrivate(pPrivateKey));
             final JcaKeyPair myPair = new JcaKeyPair(myPublic, myPrivate);
 
             /* Check that we have a matching pair */
             GordianKeyPairValidity.checkValidity(getFactory(), myPair);
 
             /* Return the keyPair */
             return myPair;
 
         } catch (InvalidKeySpecException e) {
             throw new GordianCryptoException(PARSE_ERROR, e);
         }
     }
 
     /**
      * Create private key.
      *
      * @param pPrivateKey the private key
      * @return the private key
      */
     protected JcaPrivateKey createPrivate(final PrivateKey pPrivateKey) {
         return new JcaPrivateKey(getKeySpec(), pPrivateKey);
     }
 
     /**
      * Create public key.
      *
      * @param pPublicKey the public key
      * @return the public key
      */
     protected JcaPublicKey createPublic(final PublicKey pPublicKey) {
         return new JcaPublicKey(getKeySpec(), pPublicKey);
     }
 
     @Override
     public JcaKeyPair derivePublicOnlyKeyPair(final X509EncodedKeySpec pPublicKey) throws GordianException {
         final JcaPublicKey myPublic = derivePublicKey(pPublicKey);
         return new JcaKeyPair(myPublic);
     }
 
     /**
      * Derive the public key.
      *
      * @param pEncodedKey the encoded public key
      * @return the public key
      * @throws GordianException on error
      */
     protected JcaPublicKey derivePublicKey(final X509EncodedKeySpec pEncodedKey) throws GordianException {
         /* Protect against exceptions */
         try {
             /* Check the keySpec */
             checkKeySpec(pEncodedKey);
 
             /* derive the key */
             return createPublic(theFactory.generatePublic(pEncodedKey));
 
         } catch (InvalidKeySpecException e) {
             throw new GordianCryptoException(PARSE_ERROR, e);
         }
     }
 
     /**
      * Jca RSA KeyPair generator.
      */
     public static class JcaRSAKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * RSA algorithm.
          */
         private static final String RSA_ALGO = "RSA";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaRSAKeyPairGenerator(final GordianBaseFactory pFactory,
                                final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Create and initialize the generator */
             theGenerator = getJavaKeyPairGenerator(RSA_ALGO, false);
             final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
             theGenerator.initialize(myKeySpec.getRSASpec().getLength(), getRandom());
 
             /* Create the factory */
             setKeyFactory(getJavaKeyFactory(RSA_ALGO, false));
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca ElGamal KeyPair generator.
      */
     public static class JcaElGamalKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * RSA algorithm.
          */
         private static final String ELGAMAL_ALGO = "ELGAMAL";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaElGamalKeyPairGenerator(final GordianBaseFactory pFactory,
                                    final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create the parameter generator */
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final GordianCoreDHSpec myGroup = myKeySpec.getDHSpec();
                 final DHParameters myParms = myGroup.getParameters();
                 final ElGamalParameterSpec mySpec = new ElGamalParameterSpec(myParms.getP(), myParms.getQ());
 
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(ELGAMAL_ALGO, false);
                 theGenerator.initialize(mySpec, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(ELGAMAL_ALGO, false));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create ElGamalGenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca Elliptic KeyPair generator.
      */
     public static class JcaECKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaECKeyPairGenerator(final GordianBaseFactory pFactory,
                               final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create and initialize the generator */
                 final String myAlgo = getAlgorithm();
                 theGenerator = getJavaKeyPairGenerator(myAlgo, false);
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final ECGenParameterSpec myParms = new ECGenParameterSpec(myKeySpec.getElliptic().getCurveName());
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(myAlgo, false));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create ECgenerator for:  " + pKeySpec, e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
 
         /**
          * Obtain algorithm for keySpec.
          *
          * @return the algorithm
          */
         private String getAlgorithm() {
             return switch (this.getKeySpec().getKeyPairType()) {
                 case DSTU -> "DSTU4145";
                 case GOST -> "ECGOST3410-2012";
                 default -> "EC";
             };
         }
     }
 
     /**
      * Jca DSA KeyPair generator.
      */
     public static class JcaDSAKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * DSA algorithm.
          */
         private static final String DSA_ALGO = "DSA";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaDSAKeyPairGenerator(final GordianBaseFactory pFactory,
                                final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Create and initialize the generator */
             final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
             final GordianCoreDSASpec myKeyType = myKeySpec.getDSASpec();
             theGenerator = getJavaKeyPairGenerator(DSA_ALGO, false);
             theGenerator.initialize(myKeyType.getKeySize(), getRandom());
 
             /* Create the factory */
             setKeyFactory(getJavaKeyFactory(DSA_ALGO, false));
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca DiffieHellman KeyPair generator.
      */
     public static class JcaDHKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * DH algorithm.
          */
         private static final String DH_ALGO = "DH";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaDHKeyPairGenerator(final GordianBaseFactory pFactory,
                               final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create the parameter generator */
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final GordianCoreDHSpec myGroup = myKeySpec.getDHSpec();
                 final DHParameters myParms = myGroup.getParameters();
                 final DHDomainParameterSpec mySpec = new DHDomainParameterSpec(myParms);
 
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(DH_ALGO, false);
                 theGenerator.initialize(mySpec, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(DH_ALGO, false));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create DHgenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
 
         @Override
         protected JcaPrivateKey createPrivate(final PrivateKey pPrivateKey) {
             return new JcaDHPrivateKey(getKeySpec(), (BCDHPrivateKey) pPrivateKey);
         }
 
         @Override
         protected JcaPublicKey createPublic(final PublicKey pPublicKey) {
             return new JcaDHPublicKey(getKeySpec(), (BCDHPublicKey) pPublicKey);
         }
     }
 
     /**
      * Jca SLHDSA KeyPair generator.
      */
     public static class JcaSLHDSAKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * SLHDSA algorithm.
          */
         private static final String SLHDSA_ALGO = "SLH-DSA";
 
         /**
          * HASH indication.
          */
         private static final String SLHDSA_HASH = "HASH-" + SLHDSA_ALGO;
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaSLHDSAKeyPairGenerator(final GordianBaseFactory pFactory,
                                   final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Determine algorithm */
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final String myAlgo = myKeySpec.getSLHDSASpec().isHash() ? SLHDSA_HASH : SLHDSA_ALGO;
 
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(myAlgo, false);
                 final SLHDSAParameterSpec myParms = myKeySpec.getSLHDSASpec().getParameterSpec();
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(myAlgo, false));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create SLHDSAgenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca CMCE KeyPair generator.
      */
     public static class JcaCMCEKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * FRODO algorithm.
          */
         private static final String CMCE_ALGO = "CMCE";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaCMCEKeyPairGenerator(final GordianBaseFactory pFactory,
                                 final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(CMCE_ALGO, true);
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final CMCEParameterSpec myParms = myKeySpec.getCMCESpec().getParameterSpec();
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(CMCE_ALGO, true));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create CMCEgenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca Frodo KeyPair generator.
      */
     public static class JcaFrodoKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * FRODO algorithm.
          */
         private static final String FRODO_ALGO = "FRODO";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaFrodoKeyPairGenerator(final GordianBaseFactory pFactory,
                                  final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(FRODO_ALGO, true);
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final FrodoParameterSpec myParms = myKeySpec.getFRODOSpec().getParameterSpec();
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(FRODO_ALGO, true));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create FRODOgenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca SABER KeyPair generator.
      */
     public static class JcaSABERKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * SABER algorithm.
          */
         private static final String SABER_ALGO = "SABER";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaSABERKeyPairGenerator(final GordianBaseFactory pFactory,
                                  final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(SABER_ALGO, true);
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final SABERParameterSpec myParms = myKeySpec.getSABERSpec().getParameterSpec();
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(SABER_ALGO, true));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create SABERgenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca MLKEM KeyPair generator.
      */
     public static class JcaMLKEMKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * MLKEM algorithm.
          */
         private static final String MLKEM_ALGO = "MLKEM";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaMLKEMKeyPairGenerator(final GordianBaseFactory pFactory,
                                  final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(MLKEM_ALGO, false);
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final MLKEMParameterSpec myParms = myKeySpec.getMLKEMSpec().getParameterSpec();
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(MLKEM_ALGO, false));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create MLKEMgenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca MLDSA KeyPair generator.
      */
     public static class JcaMLDSAKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * MLDSA algorithm.
          */
         private static final String MLDSA_ALGO = "ML-DSA";
 
         /**
          * HASH indication.
          */
         private static final String MLDSA_HASH = "HASH-" + MLDSA_ALGO;
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaMLDSAKeyPairGenerator(final GordianBaseFactory pFactory,
                                  final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Determine algorithm */
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final String myAlgo = myKeySpec.getMLDSASpec().isHash() ? MLDSA_HASH : MLDSA_ALGO;
 
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(myAlgo, false);
                 final MLDSAParameterSpec myParms = myKeySpec.getMLDSASpec().getParameterSpec();
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(myAlgo, false));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create MLDSAGenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca HQC KeyPair generator.
      */
     public static class JcaHQCKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * BIKE algorithm.
          */
         private static final String HQC_ALGO = "HQC";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaHQCKeyPairGenerator(final GordianBaseFactory pFactory,
                                final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(HQC_ALGO, true);
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final HQCParameterSpec myParms = myKeySpec.getHQCSpec().getParameterSpec();
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(HQC_ALGO, true));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create HQCgenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca BIKE KeyPair generator.
      */
     public static class JcaBIKEKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * BIKE algorithm.
          */
         private static final String BIKE_ALGO = "BIKE";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaBIKEKeyPairGenerator(final GordianBaseFactory pFactory,
                                 final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(BIKE_ALGO, true);
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final BIKEParameterSpec myParms = myKeySpec.getBIKESpec().getParameterSpec();
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(BIKE_ALGO, true));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create BIKEgenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca NTRU KeyPair generator.
      */
     public static class JcaNTRUKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * NTRU algorithm.
          */
         private static final String NTRU_ALGO = "NTRU";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaNTRUKeyPairGenerator(final GordianBaseFactory pFactory,
                                 final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(NTRU_ALGO, true);
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final NTRUParameterSpec myParms = myKeySpec.getNTRUSpec().getParameterSpec();
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(NTRU_ALGO, true));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create NTRUgenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca NTRUPlus KeyPair generator.
      */
     public static class JcaNTRUPlusKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * NTRU algorithm.
          */
         private static final String NTRUPLUS_ALGO = "NTRUPLUS";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaNTRUPlusKeyPairGenerator(final GordianBaseFactory pFactory,
                                     final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(NTRUPLUS_ALGO, true);
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final NTRUPlusParameterSpec myParms = myKeySpec.getNTRUPlusSpec().getParameterSpec();
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(NTRUPLUS_ALGO, true));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create NTRUPlusGenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca Falcon KeyPair generator.
      */
     public static class JcaFalconKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * FALCON algorithm.
          */
         private static final String FALCON_ALGO = "FALCON";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaFalconKeyPairGenerator(final GordianBaseFactory pFactory,
                                   final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(FALCON_ALGO, true);
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final FalconParameterSpec myParms = myKeySpec.getFalconSpec().getParameterSpec();
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(FALCON_ALGO, true));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create FALCONgenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca Mayo KeyPair generator.
      */
     public static class JcaMayoKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * Mayo algorithm.
          */
         private static final String MAYO_ALGO = "MAYO";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaMayoKeyPairGenerator(final GordianBaseFactory pFactory,
                                 final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(MAYO_ALGO, true);
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final MayoParameterSpec myParms = myKeySpec.getMayoSpec().getParameterSpec();
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(MAYO_ALGO, true));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create MayoGenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca Snova KeyPair generator.
      */
     public static class JcaSnovaKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * Snova algorithm.
          */
         private static final String SNOVA_ALGO = "SNOVA";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaSnovaKeyPairGenerator(final GordianBaseFactory pFactory,
                                  final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(SNOVA_ALGO, true);
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final SnovaParameterSpec myParms = myKeySpec.getSnovaSpec().getParameterSpec();
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(SNOVA_ALGO, true));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create SnovaGenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca NTRULPrime KeyPair generator.
      */
     public static class JcaNTRULPrimeKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * NTRULPrime algorithm.
          */
         private static final String NTRU_ALGO = "NTRULPRIME";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaNTRULPrimeKeyPairGenerator(final GordianBaseFactory pFactory,
                                       final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(NTRU_ALGO, true);
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final NTRULPRimeParameterSpec myParms = myKeySpec.getNTRUPrimeSpec().getCoreParams().getNTRULParameterSpec();
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(NTRU_ALGO, true));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create NTRULPrimeGenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca SNTRUPrime KeyPair generator.
      */
     public static class JcaSNTRUPrimeKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * NTRULPrime algorithm.
          */
         private static final String NTRU_ALGO = "SNTRUPRIME";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaSNTRUPrimeKeyPairGenerator(final GordianBaseFactory pFactory,
                                       final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(NTRU_ALGO, true);
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final SNTRUPrimeParameterSpec myParms = myKeySpec.getNTRUPrimeSpec().getCoreParams().getSNTRUParameterSpec();
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(NTRU_ALGO, true));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create SNTRUPrimeGenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca Picnic KeyPair generator.
      */
     public static class JcaPicnicKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * Picnic algorithm.
          */
         private static final String PICNIC_ALGO = "PICNIC";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaPicnicKeyPairGenerator(final GordianBaseFactory pFactory,
                                   final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create and initialize the generator */
                 theGenerator = getJavaKeyPairGenerator(PICNIC_ALGO, true);
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final PicnicParameterSpec myParms = myKeySpec.getPicnicSpec().getParameterSpec();
                 theGenerator.initialize(myParms, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(PICNIC_ALGO, true));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create PICNICgenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca XMSS KeyPair generator.
      */
     public static class JcaXMSSKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaXMSSKeyPairGenerator(final GordianBaseFactory pFactory,
                                 final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Access the algorithm */
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final GordianCoreXMSSSpec myXMSSKeySpec = myKeySpec.getXMSSSpec();
                 final boolean isXMSSMT = myXMSSKeySpec.isMT();
                 final GordianXMSSDigestType myType = myXMSSKeySpec.getDigestType();
 
                 /* Create the parameters */
                 final AlgorithmParameterSpec myAlgo = isXMSSMT
                         ? new XMSSMTParameterSpec(myXMSSKeySpec.getHeight().getHeight(),
                         myXMSSKeySpec.getLayers().getLayers(), myType.name())
                         : new XMSSParameterSpec(myXMSSKeySpec.getHeight().getHeight(), myType.name());
 
                 /* Create and initialize the generator */
                 final String myJavaType = myXMSSKeySpec.getKeyType().name();
                 theGenerator = getJavaKeyPairGenerator(myJavaType, true);
                 theGenerator.initialize(myAlgo, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(myJavaType, true));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create XMSSgenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaStateAwarePrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaStateAwareKeyPair(myPublic, myPrivate);
         }
 
         @Override
         protected JcaStateAwarePrivateKey createPrivate(final PrivateKey pPrivateKey) {
             return new JcaStateAwarePrivateKey(getKeySpec(), pPrivateKey);
         }
 
         @Override
         public JcaKeyPair deriveKeyPair(final X509EncodedKeySpec pPublicKey,
                                         final PKCS8EncodedKeySpec pPrivateKey) throws GordianException {
             /* Protect against exceptions */
             try {
                 /* Check the keySpecs */
                 checkKeySpec(pPrivateKey);
 
                 /* derive keyPair */
                 final JcaPublicKey myPublic = derivePublicKey(pPublicKey);
                 JcaStateAwarePrivateKey myPrivate = createPrivate(getKeyFactory().generatePrivate(pPrivateKey));
                 final JcaKeyPair myPair = new JcaStateAwareKeyPair(myPublic, myPrivate);
 
                 /* Check that we have a matching pair */
                 GordianKeyPairValidity.checkValidity(getFactory(), myPair);
 
                 /* Rebuild and return the keyPair to avoid incrementing usage count */
                 myPrivate = createPrivate(getKeyFactory().generatePrivate(pPrivateKey));
                 return new JcaStateAwareKeyPair(myPublic, myPrivate);
 
             } catch (InvalidKeySpecException e) {
                 throw new GordianCryptoException(PARSE_ERROR, e);
             }
         }
     }
 
     /**
      * Jca Edwards KeyPair generator.
      */
     public static class JcaEdKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         protected JcaEdKeyPairGenerator(final GordianBaseFactory pFactory,
                                         final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Protect against exceptions */
             try {
                 /* Create the parameters */
                 final AlgorithmParameterSpec myAlgo;
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final boolean is25519 = myKeySpec.getEdwardsSpec().is25519();
                 myAlgo = switch (pKeySpec.getKeyPairType()) {
                     case XDH -> is25519
                             ? new XDHParameterSpec(XDHParameterSpec.X25519)
                             : new XDHParameterSpec(XDHParameterSpec.X448);
                     case EDDSA -> is25519
                             ? new EdDSAParameterSpec(EdDSAParameterSpec.Ed25519)
                             : new EdDSAParameterSpec(EdDSAParameterSpec.Ed448);
                     default -> throw new GordianLogicException("Invalid KeySpec" + pKeySpec);
                 };
 
                 /* Create and initialize the generator */
                 final String myJavaType = pKeySpec.toString();
                 theGenerator = getJavaKeyPairGenerator(myJavaType, false);
                 theGenerator.initialize(myAlgo, getRandom());
 
                 /* Create the factory */
                 setKeyFactory(getJavaKeyFactory(myJavaType, false));
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to create EdwardsGenerator", e);
             }
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca NewHope KeyPair generator.
      */
     public static class JcaNewHopeKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * NewHope algorithm.
          */
         private static final String NEWHOPE_ALGO = "NH";
 
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaNewHopeKeyPairGenerator(final GordianBaseFactory pFactory,
                                    final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Create and initialize the generator */
             theGenerator = getJavaKeyPairGenerator(NEWHOPE_ALGO, true);
             theGenerator.initialize(GordianLength.LEN_1024.getLength(), getRandom());
 
             /* Create the factory */
             setKeyFactory(getJavaKeyFactory(NEWHOPE_ALGO, true));
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaPrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaKeyPair(myPublic, myPrivate);
         }
     }
 
     /**
      * Jca LMS KeyPair generator.
      */
     public static class JcaLMSKeyPairGenerator
             extends JcaKeyPairGenerator {
         /**
          * Generator.
          */
         private final KeyPairGenerator theGenerator;
 
         /**
          * Constructor.
          *
          * @param pFactory the Security Factory
          * @param pKeySpec the keySpec
          * @throws GordianException on error
          */
         JcaLMSKeyPairGenerator(final GordianBaseFactory pFactory,
                                final GordianKeyPairSpec pKeySpec) throws GordianException {
             /* initialize underlying class */
             super(pFactory, pKeySpec);
 
             /* Create and initialize the generator */
             final String myJavaType = pKeySpec.getKeyPairType().toString();
             theGenerator = getJavaKeyPairGenerator(myJavaType, true);
 
             /* Protect against exceptions */
             try {
                 final GordianCoreKeyPairSpec myKeySpec = (GordianCoreKeyPairSpec) pKeySpec;
                 final AlgorithmParameterSpec myParms = deriveParameters(myKeySpec.getLMSSpec());
                 theGenerator.initialize(myParms, getRandom());
 
             } catch (InvalidAlgorithmParameterException e) {
                 throw new GordianCryptoException("Failed to initialize generator", e);
             }
 
             /* Create the factory */
             setKeyFactory(getJavaKeyFactory(myJavaType, true));
         }
 
         /**
          * Derive the parameters.
          *
          * @param pKeySpec the keySPec
          * @return the parameters.
          */
         private static LMSHSSKeyGenParameterSpec deriveParameters(final GordianCoreLMSSpec pKeySpec) {
             /* Generate and return the keyPair */
             final LMSKeyGenParameterSpec[] myParams = new LMSKeyGenParameterSpec[pKeySpec.getTreeDepth()];
             final LMSParameters myParms = pKeySpec.getParameters();
             final LMSKeyGenParameterSpec myKeyGen = new LMSKeyGenParameterSpec(myParms.getLMSigParam(), myParms.getLMOTSParam());
             Arrays.fill(myParams, myKeyGen);
             return new LMSHSSKeyGenParameterSpec(myParams);
         }
 
         @Override
         public JcaKeyPair generateKeyPair() {
             /* Generate and return the keyPair */
             final KeyPair myPair = theGenerator.generateKeyPair();
             final JcaPublicKey myPublic = createPublic(myPair.getPublic());
             final JcaStateAwarePrivateKey myPrivate = createPrivate(myPair.getPrivate());
             return new JcaStateAwareKeyPair(myPublic, myPrivate);
         }
 
         @Override
         protected JcaStateAwarePrivateKey createPrivate(final PrivateKey pPrivateKey) {
             return new JcaStateAwarePrivateKey(getKeySpec(), pPrivateKey);
         }
 
         @Override
         public JcaKeyPair deriveKeyPair(final X509EncodedKeySpec pPublicKey,
                                         final PKCS8EncodedKeySpec pPrivateKey) throws GordianException {
             /* Protect against exceptions */
             try {
                 /* Check the keySpecs */
                 checkKeySpec(pPrivateKey);
 
                 /* derive keyPair */
                 final JcaPublicKey myPublic = derivePublicKey(pPublicKey);
                 JcaStateAwarePrivateKey myPrivate = createPrivate(getKeyFactory().generatePrivate(pPrivateKey));
                 final JcaKeyPair myPair = new JcaStateAwareKeyPair(myPublic, myPrivate);
 
                 /* Check that we have a matching pair */
                 GordianKeyPairValidity.checkValidity(getFactory(), myPair);
 
                 /* Rebuild and return the keyPair to avoid incrementing usage count */
                 myPrivate = createPrivate(getKeyFactory().generatePrivate(pPrivateKey));
                 return new JcaStateAwareKeyPair(myPublic, myPrivate);
 
             } catch (InvalidKeySpecException e) {
                 throw new GordianCryptoException(PARSE_ERROR, e);
             }
         }
     }
 
     /**
      * Create the BouncyCastle KeyFactory via JCA.
      *
      * @param pAlgorithm  the Algorithm
      * @param postQuantum is this a postQuantum algorithm?
      * @return the KeyFactory
      * @throws GordianException on error
      */
     static KeyFactory getJavaKeyFactory(final String pAlgorithm,
                                         final boolean postQuantum) throws GordianException {
         /* Protect against exceptions */
         try {
             /* Return a KeyFactory for the algorithm */
             return KeyFactory.getInstance(pAlgorithm, postQuantum
                     ? JcaProvider.BCPQPROV
                     : JcaProvider.BCPROV);
 
             /* Catch exceptions */
         } catch (NoSuchAlgorithmException e) {
             /* Throw the exception */
             throw new GordianCryptoException("Failed to create KeyFactory", e);
         }
     }
 
     /**
      * Create the BouncyCastle KeyPairGenerator via JCA.
      *
      * @param pAlgorithm  the Algorithm
      * @param postQuantum is this a postQuantum algorithm?
      * @return the KeyPairGenerator
      * @throws GordianException on error
      */
     static KeyPairGenerator getJavaKeyPairGenerator(final String pAlgorithm,
                                                     final boolean postQuantum) throws GordianException {
         /* Protect against exceptions */
         try {
             /* Return a KeyPairGenerator for the algorithm */
             return KeyPairGenerator.getInstance(pAlgorithm, postQuantum
                     ? JcaProvider.BCPQPROV
                     : JcaProvider.BCPROV);
 
             /* Catch exceptions */
         } catch (NoSuchAlgorithmException e) {
             /* Throw the exception */
             throw new GordianCryptoException("Failed to create KeyPairGenerator", e);
         }
     }
 }