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package io.gatling.recorder.internal.bouncycastle.jcajce.provider.asymmetric.compositesignatures;
import java.security.GeneralSecurityException;
import java.security.InvalidAlgorithmParameterException;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.SecureRandom;
import java.security.spec.AlgorithmParameterSpec;
import java.security.spec.ECGenParameterSpec;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import io.gatling.recorder.internal.bouncycastle.asn1.ASN1ObjectIdentifier;
import io.gatling.recorder.internal.bouncycastle.jcajce.CompositePrivateKey;
import io.gatling.recorder.internal.bouncycastle.jcajce.CompositePublicKey;
import io.gatling.recorder.internal.bouncycastle.pqc.jcajce.spec.DilithiumParameterSpec;
import io.gatling.recorder.internal.bouncycastle.pqc.jcajce.spec.FalconParameterSpec;
/**
* KeyPairGenerator class for composite signatures. Selected algorithm is set by the "subclasses" at the end of this file.
*/
public class KeyPairGeneratorSpi
extends java.security.KeyPairGeneratorSpi
{
//Enum value of the selected composite signature algorithm.
private final CompositeSignaturesConstants.CompositeName algorithmIdentifier;
//ASN1 OI value of the selected composite signature algorithm.
private final ASN1ObjectIdentifier algorithmIdentifierASN1;
//List of KeyPairGenerators. Each entry corresponds to a component signature from the composite definition.
private List generators;
private SecureRandom secureRandom;
private boolean parametersInitialized = false;
KeyPairGeneratorSpi(CompositeSignaturesConstants.CompositeName algorithmIdentifier)
{
this.algorithmIdentifier = algorithmIdentifier;
this.algorithmIdentifierASN1 = CompositeSignaturesConstants.compositeNameASN1IdentifierMap.get(this.algorithmIdentifier);
}
/**
* Creates a list of KeyPairGenerators based on the selected composite algorithm (algorithmIdentifier).
* Each component generator is initialized with parameters according to the specification https://www.ietf.org/archive/id/draft-ounsworth-pq-composite-sigs-13.html.
* Called after initialize() method or right before keypair generation in case initialize() was not called by the user.
*/
private void initializeParameters()
{
if (this.secureRandom == null)
{
this.secureRandom = new SecureRandom();
}
List generators = new ArrayList();
try
{
switch (this.algorithmIdentifier)
{
case MLDSA44_Ed25519_SHA512:
generators.add(KeyPairGenerator.getInstance("Dilithium", "BC"));
generators.add(KeyPairGenerator.getInstance("Ed25519", "BC"));
generators.get(0).initialize(DilithiumParameterSpec.dilithium2, this.secureRandom);
generators.get(1).initialize(256, this.secureRandom);
break;
case MLDSA65_Ed25519_SHA512:
generators.add(KeyPairGenerator.getInstance("Dilithium", "BC"));
generators.add(KeyPairGenerator.getInstance("Ed25519", "BC"));
generators.get(0).initialize(DilithiumParameterSpec.dilithium3, this.secureRandom);
generators.get(1).initialize(256, this.secureRandom);
break;
case MLDSA87_Ed448_SHA512:
generators.add(KeyPairGenerator.getInstance("Dilithium", "BC"));
generators.add(KeyPairGenerator.getInstance("Ed448", "BC"));
generators.get(0).initialize(DilithiumParameterSpec.dilithium5, this.secureRandom);
generators.get(1).initialize(448, this.secureRandom);
break;
case MLDSA44_RSA2048_PSS_SHA256:
case MLDSA44_RSA2048_PKCS15_SHA256:
generators.add(KeyPairGenerator.getInstance("Dilithium", "BC"));
generators.add(KeyPairGenerator.getInstance("RSA", "BC"));
generators.get(0).initialize(DilithiumParameterSpec.dilithium2, this.secureRandom);
generators.get(1).initialize(2048, this.secureRandom);
break;
case MLDSA65_RSA3072_PSS_SHA512:
case MLDSA65_RSA3072_PKCS15_SHA512:
generators.add(KeyPairGenerator.getInstance("Dilithium", "BC"));
generators.add(KeyPairGenerator.getInstance("RSA", "BC"));
generators.get(0).initialize(DilithiumParameterSpec.dilithium3, this.secureRandom);
generators.get(1).initialize(3072, this.secureRandom);
break;
case MLDSA44_ECDSA_P256_SHA256:
generators.add(KeyPairGenerator.getInstance("Dilithium", "BC"));
generators.add(KeyPairGenerator.getInstance("ECDSA", "BC"));
generators.get(0).initialize(DilithiumParameterSpec.dilithium2, this.secureRandom);
generators.get(1).initialize(new ECGenParameterSpec("P-256"), this.secureRandom);
break;
case MLDSA44_ECDSA_brainpoolP256r1_SHA256:
generators.add(KeyPairGenerator.getInstance("Dilithium", "BC"));
generators.add(KeyPairGenerator.getInstance("ECDSA", "BC"));
generators.get(0).initialize(DilithiumParameterSpec.dilithium2, this.secureRandom);
generators.get(1).initialize(new ECGenParameterSpec("brainpoolP256r1"), this.secureRandom);
break;
case MLDSA65_ECDSA_P256_SHA512:
generators.add(KeyPairGenerator.getInstance("Dilithium", "BC"));
generators.add(KeyPairGenerator.getInstance("ECDSA", "BC"));
generators.get(0).initialize(DilithiumParameterSpec.dilithium3, this.secureRandom);
generators.get(1).initialize(new ECGenParameterSpec("P-256"), this.secureRandom);
break;
case MLDSA65_ECDSA_brainpoolP256r1_SHA512:
generators.add(KeyPairGenerator.getInstance("Dilithium", "BC"));
generators.add(KeyPairGenerator.getInstance("ECDSA", "BC"));
generators.get(0).initialize(DilithiumParameterSpec.dilithium3, this.secureRandom);
generators.get(1).initialize(new ECGenParameterSpec("brainpoolP256r1"), this.secureRandom);
break;
case MLDSA87_ECDSA_P384_SHA512:
generators.add(KeyPairGenerator.getInstance("Dilithium", "BC"));
generators.add(KeyPairGenerator.getInstance("ECDSA", "BC"));
generators.get(0).initialize(DilithiumParameterSpec.dilithium5, this.secureRandom);
generators.get(1).initialize(new ECGenParameterSpec("P-384"), this.secureRandom);
break;
case MLDSA87_ECDSA_brainpoolP384r1_SHA512:
generators.add(KeyPairGenerator.getInstance("Dilithium", "BC"));
generators.add(KeyPairGenerator.getInstance("ECDSA", "BC"));
generators.get(0).initialize(DilithiumParameterSpec.dilithium5, this.secureRandom);
generators.get(1).initialize(new ECGenParameterSpec("brainpoolP384r1"), this.secureRandom);
break;
case Falcon512_ECDSA_P256_SHA256:
generators.add(KeyPairGenerator.getInstance("Falcon", "BC"));
generators.add(KeyPairGenerator.getInstance("ECDSA", "BC"));
generators.get(0).initialize(FalconParameterSpec.falcon_512, this.secureRandom);
generators.get(1).initialize(new ECGenParameterSpec("P-256"), this.secureRandom);
break;
case Falcon512_ECDSA_brainpoolP256r1_SHA256:
generators.add(KeyPairGenerator.getInstance("Falcon", "BC"));
generators.add(KeyPairGenerator.getInstance("ECDSA", "BC"));
generators.get(0).initialize(FalconParameterSpec.falcon_512, this.secureRandom);
generators.get(1).initialize(new ECGenParameterSpec("brainpoolP256r1"), this.secureRandom);
break;
case Falcon512_Ed25519_SHA512:
generators.add(KeyPairGenerator.getInstance("Falcon", "BC"));
generators.add(KeyPairGenerator.getInstance("Ed25519", "BC"));
generators.get(0).initialize(FalconParameterSpec.falcon_512, this.secureRandom);
generators.get(1).initialize(256, this.secureRandom);
break;
default:
throw new IllegalStateException("Generators not correctly initialized. Unsupported composite algorithm.");
}
}
catch (GeneralSecurityException e)
{
throw new RuntimeException(e);
}
this.generators = Collections.unmodifiableList(generators);
this.parametersInitialized = true;
}
/**
* Native public method. There is no notion of a keysize for composite signatures. Therefore, this method is
* unsupported. For setting a custom SecureRandom the other initialize method must be used.
*
* @param keySize
* @param random
*/
@Override
public void initialize(int keySize, SecureRandom random)
{
throw new IllegalArgumentException("use AlgorithmParameterSpec");
}
/**
* Setting custom AlgorithmParameterSpec is not supported since the composite signature algorithm definition
* allow only for one specific parameter spec which is initialized by the initializeParameters method.
* This method only serves to set a custom SecureRandom.
*
* @param paramSpec Unsupported, needs to be null.
* @param secureRandom A SecureRandom used by component key generators.
* @throws InvalidAlgorithmParameterException
*/
public void initialize(AlgorithmParameterSpec paramSpec, SecureRandom secureRandom)
throws InvalidAlgorithmParameterException
{
if (paramSpec != null)
{
throw new IllegalArgumentException("Use initialize only for custom SecureRandom. AlgorithmParameterSpec must be null because it is determined by algorithm name.");
}
this.secureRandom = secureRandom;
initializeParameters();
}
public KeyPair generateKeyPair()
{
if (!this.parametersInitialized)
{
this.initializeParameters();
}
return getCompositeKeyPair();
}
/**
* Generates a KeyPair of CompositePublicKey and CompositePrivateKey.
* It iterates over the generators list which was created based on the composite signature type.
*
* @return A composite KeyPair
*/
private KeyPair getCompositeKeyPair()
{
PublicKey[] publicKeys = new PublicKey[generators.size()];
PrivateKey[] privateKeys = new PrivateKey[generators.size()];
for (int i = 0; i < generators.size(); i++)
{
KeyPair keyPair = generators.get(i).generateKeyPair();
publicKeys[i] = keyPair.getPublic();
privateKeys[i] = keyPair.getPrivate();
}
CompositePublicKey compositePublicKey = new CompositePublicKey(this.algorithmIdentifierASN1, publicKeys);
CompositePrivateKey compositePrivateKey = new CompositePrivateKey(this.algorithmIdentifierASN1, privateKeys);
return new KeyPair(compositePublicKey, compositePrivateKey);
}
public static final class MLDSA44_Ed25519_SHA512
extends KeyPairGeneratorSpi
{
public MLDSA44_Ed25519_SHA512()
{
super(CompositeSignaturesConstants.CompositeName.MLDSA44_Ed25519_SHA512);
}
}
public static final class MLDSA65_Ed25519_SHA512
extends KeyPairGeneratorSpi
{
public MLDSA65_Ed25519_SHA512()
{
super(CompositeSignaturesConstants.CompositeName.MLDSA65_Ed25519_SHA512);
}
}
public static final class MLDSA87_Ed448_SHA512
extends KeyPairGeneratorSpi
{
public MLDSA87_Ed448_SHA512()
{
super(CompositeSignaturesConstants.CompositeName.MLDSA87_Ed448_SHA512);
}
}
public static final class MLDSA44_RSA2048_PSS_SHA256
extends KeyPairGeneratorSpi
{
public MLDSA44_RSA2048_PSS_SHA256()
{
super(CompositeSignaturesConstants.CompositeName.MLDSA44_RSA2048_PSS_SHA256);
}
}
public static final class MLDSA44_RSA2048_PKCS15_SHA256
extends KeyPairGeneratorSpi
{
public MLDSA44_RSA2048_PKCS15_SHA256()
{
super(CompositeSignaturesConstants.CompositeName.MLDSA44_RSA2048_PKCS15_SHA256);
}
}
public static final class MLDSA65_RSA3072_PSS_SHA512
extends KeyPairGeneratorSpi
{
public MLDSA65_RSA3072_PSS_SHA512()
{
super(CompositeSignaturesConstants.CompositeName.MLDSA65_RSA3072_PSS_SHA512);
}
}
public static final class MLDSA65_RSA3072_PKCS15_SHA512
extends KeyPairGeneratorSpi
{
public MLDSA65_RSA3072_PKCS15_SHA512()
{
super(CompositeSignaturesConstants.CompositeName.MLDSA65_RSA3072_PKCS15_SHA512);
}
}
public static final class MLDSA44_ECDSA_P256_SHA256
extends KeyPairGeneratorSpi
{
public MLDSA44_ECDSA_P256_SHA256()
{
super(CompositeSignaturesConstants.CompositeName.MLDSA44_ECDSA_P256_SHA256);
}
}
public static final class MLDSA44_ECDSA_brainpoolP256r1_SHA256
extends KeyPairGeneratorSpi
{
public MLDSA44_ECDSA_brainpoolP256r1_SHA256()
{
super(CompositeSignaturesConstants.CompositeName.MLDSA44_ECDSA_brainpoolP256r1_SHA256);
}
}
public static final class MLDSA65_ECDSA_P256_SHA512
extends KeyPairGeneratorSpi
{
public MLDSA65_ECDSA_P256_SHA512()
{
super(CompositeSignaturesConstants.CompositeName.MLDSA65_ECDSA_P256_SHA512);
}
}
public static final class MLDSA65_ECDSA_brainpoolP256r1_SHA512
extends KeyPairGeneratorSpi
{
public MLDSA65_ECDSA_brainpoolP256r1_SHA512()
{
super(CompositeSignaturesConstants.CompositeName.MLDSA65_ECDSA_brainpoolP256r1_SHA512);
}
}
public static final class MLDSA87_ECDSA_P384_SHA512
extends KeyPairGeneratorSpi
{
public MLDSA87_ECDSA_P384_SHA512()
{
super(CompositeSignaturesConstants.CompositeName.MLDSA87_ECDSA_P384_SHA512);
}
}
public static final class MLDSA87_ECDSA_brainpoolP384r1_SHA512
extends KeyPairGeneratorSpi
{
public MLDSA87_ECDSA_brainpoolP384r1_SHA512()
{
super(CompositeSignaturesConstants.CompositeName.MLDSA87_ECDSA_brainpoolP384r1_SHA512);
}
}
public static final class Falcon512_Ed25519_SHA512
extends KeyPairGeneratorSpi
{
public Falcon512_Ed25519_SHA512()
{
super(CompositeSignaturesConstants.CompositeName.Falcon512_Ed25519_SHA512);
}
}
public static final class Falcon512_ECDSA_P256_SHA256
extends KeyPairGeneratorSpi
{
public Falcon512_ECDSA_P256_SHA256()
{
super(CompositeSignaturesConstants.CompositeName.Falcon512_ECDSA_P256_SHA256);
}
}
public static final class Falcon512_ECDSA_brainpoolP256r1_SHA256
extends KeyPairGeneratorSpi
{
public Falcon512_ECDSA_brainpoolP256r1_SHA256()
{
super(CompositeSignaturesConstants.CompositeName.Falcon512_ECDSA_brainpoolP256r1_SHA256);
}
}
}
