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This OSGi bundle wraps ${pkgArtifactId} ${pkgVersion} jar file.
package org.bouncycastle.jcajce.provider.asymmetric.ec;
import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.Key;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.interfaces.ECPrivateKey;
import java.security.interfaces.ECPublicKey;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.KeySpec;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.pkcs.PrivateKeyInfo;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;
import org.bouncycastle.asn1.x9.X9ObjectIdentifiers;
import org.bouncycastle.crypto.CipherParameters;
import org.bouncycastle.crypto.params.ECDomainParameters;
import org.bouncycastle.crypto.params.ECPublicKeyParameters;
import org.bouncycastle.crypto.util.OpenSSHPublicKeyUtil;
import org.bouncycastle.jcajce.provider.asymmetric.util.BaseKeyFactorySpi;
import org.bouncycastle.jcajce.provider.asymmetric.util.EC5Util;
import org.bouncycastle.jcajce.provider.config.ProviderConfiguration;
import org.bouncycastle.jcajce.provider.util.AsymmetricKeyInfoConverter;
import org.bouncycastle.jcajce.spec.OpenSSHPrivateKeySpec;
import org.bouncycastle.jcajce.spec.OpenSSHPublicKeySpec;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.bouncycastle.jce.spec.ECParameterSpec;
import org.bouncycastle.jce.spec.ECPrivateKeySpec;
import org.bouncycastle.jce.spec.ECPublicKeySpec;
public class KeyFactorySpi
extends BaseKeyFactorySpi
implements AsymmetricKeyInfoConverter
{
String algorithm;
ProviderConfiguration configuration;
KeyFactorySpi(
String algorithm,
ProviderConfiguration configuration)
{
this.algorithm = algorithm;
this.configuration = configuration;
}
protected Key engineTranslateKey(
Key key)
throws InvalidKeyException
{
if (key instanceof ECPublicKey)
{
return new BCECPublicKey((ECPublicKey)key, configuration);
}
else if (key instanceof ECPrivateKey)
{
return new BCECPrivateKey((ECPrivateKey)key, configuration);
}
throw new InvalidKeyException("key type unknown");
}
protected KeySpec engineGetKeySpec(
Key key,
Class spec)
throws InvalidKeySpecException
{
if (spec.isAssignableFrom(java.security.spec.ECPublicKeySpec.class) && key instanceof ECPublicKey)
{
ECPublicKey k = (ECPublicKey)key;
if (k.getParams() != null)
{
return new java.security.spec.ECPublicKeySpec(k.getW(), k.getParams());
}
else
{
ECParameterSpec implicitSpec = BouncyCastleProvider.CONFIGURATION.getEcImplicitlyCa();
return new java.security.spec.ECPublicKeySpec(k.getW(), EC5Util.convertSpec(EC5Util.convertCurve(implicitSpec.getCurve(), implicitSpec.getSeed()), implicitSpec));
}
}
else if (spec.isAssignableFrom(java.security.spec.ECPrivateKeySpec.class) && key instanceof ECPrivateKey)
{
ECPrivateKey k = (ECPrivateKey)key;
if (k.getParams() != null)
{
return new java.security.spec.ECPrivateKeySpec(k.getS(), k.getParams());
}
else
{
ECParameterSpec implicitSpec = BouncyCastleProvider.CONFIGURATION.getEcImplicitlyCa();
return new java.security.spec.ECPrivateKeySpec(k.getS(), EC5Util.convertSpec(EC5Util.convertCurve(implicitSpec.getCurve(), implicitSpec.getSeed()), implicitSpec));
}
}
else if (spec.isAssignableFrom(org.bouncycastle.jce.spec.ECPublicKeySpec.class) && key instanceof ECPublicKey)
{
ECPublicKey k = (ECPublicKey)key;
if (k.getParams() != null)
{
return new org.bouncycastle.jce.spec.ECPublicKeySpec(EC5Util.convertPoint(k.getParams(), k.getW()), EC5Util.convertSpec(k.getParams()));
}
else
{
ECParameterSpec implicitSpec = BouncyCastleProvider.CONFIGURATION.getEcImplicitlyCa();
return new org.bouncycastle.jce.spec.ECPublicKeySpec(EC5Util.convertPoint(k.getParams(), k.getW()), implicitSpec);
}
}
else if (spec.isAssignableFrom(org.bouncycastle.jce.spec.ECPrivateKeySpec.class) && key instanceof ECPrivateKey)
{
ECPrivateKey k = (ECPrivateKey)key;
if (k.getParams() != null)
{
return new org.bouncycastle.jce.spec.ECPrivateKeySpec(k.getS(), EC5Util.convertSpec(k.getParams()));
}
else
{
ECParameterSpec implicitSpec = BouncyCastleProvider.CONFIGURATION.getEcImplicitlyCa();
return new org.bouncycastle.jce.spec.ECPrivateKeySpec(k.getS(), implicitSpec);
}
}
else if (spec.isAssignableFrom(OpenSSHPublicKeySpec.class) && key instanceof ECPublicKey)
{
if (key instanceof BCECPublicKey)
{
BCECPublicKey bcPk = (BCECPublicKey)key;
ECParameterSpec sc = bcPk.getParameters();
try
{
return new OpenSSHPublicKeySpec(
OpenSSHPublicKeyUtil.encodePublicKey(
new ECPublicKeyParameters(bcPk.getQ(), new ECDomainParameters(sc.getCurve(), sc.getG(), sc.getN(), sc.getH(), sc.getSeed()))));
}
catch (IOException e)
{
throw new IllegalArgumentException("unable to produce encoding: " + e.getMessage());
}
}
else
{
throw new IllegalArgumentException("invalid key type: " + key.getClass().getName());
}
}
else if (spec.isAssignableFrom(OpenSSHPrivateKeySpec.class) && key instanceof ECPrivateKey)
{
if (key instanceof BCECPrivateKey)
{
try
{
return new OpenSSHPrivateKeySpec(PrivateKeyInfo.getInstance(key.getEncoded()).parsePrivateKey().toASN1Primitive().getEncoded());
}
catch (IOException e)
{
throw new IllegalArgumentException("cannot encoded key: " + e.getMessage());
}
}
else
{
throw new IllegalArgumentException("invalid key type: " + key.getClass().getName());
}
}
else if (spec.isAssignableFrom(org.bouncycastle.jce.spec.OpenSSHPublicKeySpec.class) && key instanceof ECPublicKey)
{
if (key instanceof BCECPublicKey)
{
BCECPublicKey bcPk = (BCECPublicKey)key;
ECParameterSpec sc = bcPk.getParameters();
try
{
return new org.bouncycastle.jce.spec.OpenSSHPublicKeySpec(
OpenSSHPublicKeyUtil.encodePublicKey(
new ECPublicKeyParameters(bcPk.getQ(), new ECDomainParameters(sc.getCurve(), sc.getG(), sc.getN(), sc.getH(), sc.getSeed()))));
}
catch (IOException e)
{
throw new IllegalArgumentException("unable to produce encoding: " + e.getMessage());
}
}
else
{
throw new IllegalArgumentException("invalid key type: " + key.getClass().getName());
}
}
else if (spec.isAssignableFrom(org.bouncycastle.jce.spec.OpenSSHPrivateKeySpec.class) && key instanceof ECPrivateKey)
{
if (key instanceof BCECPrivateKey)
{
try
{
return new org.bouncycastle.jce.spec.OpenSSHPrivateKeySpec(PrivateKeyInfo.getInstance(key.getEncoded()).parsePrivateKey().toASN1Primitive().getEncoded());
}
catch (IOException e)
{
throw new IllegalArgumentException("cannot encoded key: " + e.getMessage());
}
}
else
{
throw new IllegalArgumentException("invalid key type: " + key.getClass().getName());
}
}
return super.engineGetKeySpec(key, spec);
}
protected PrivateKey engineGeneratePrivate(
KeySpec keySpec)
throws InvalidKeySpecException
{
if (keySpec instanceof ECPrivateKeySpec)
{
return new BCECPrivateKey(algorithm, (ECPrivateKeySpec)keySpec, configuration);
}
else if (keySpec instanceof java.security.spec.ECPrivateKeySpec)
{
return new BCECPrivateKey(algorithm, (java.security.spec.ECPrivateKeySpec)keySpec, configuration);
}
else if (keySpec instanceof OpenSSHPrivateKeySpec)
{
org.bouncycastle.asn1.sec.ECPrivateKey ecKey = org.bouncycastle.asn1.sec.ECPrivateKey.getInstance(((OpenSSHPrivateKeySpec)keySpec).getEncoded());
try
{
return new BCECPrivateKey(algorithm, new PrivateKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, ecKey.getParameters()), ecKey), configuration);
}
catch (IOException e)
{
throw new InvalidKeySpecException("bad encoding: " + e.getMessage());
}
}
return super.engineGeneratePrivate(keySpec);
}
protected PublicKey engineGeneratePublic(
KeySpec keySpec)
throws InvalidKeySpecException
{
try
{
if (keySpec instanceof ECPublicKeySpec)
{
return new BCECPublicKey(algorithm, (ECPublicKeySpec)keySpec, configuration);
}
else if (keySpec instanceof java.security.spec.ECPublicKeySpec)
{
return new BCECPublicKey(algorithm, (java.security.spec.ECPublicKeySpec)keySpec, configuration);
}
else if (keySpec instanceof OpenSSHPublicKeySpec)
{
CipherParameters params = OpenSSHPublicKeyUtil.parsePublicKey(((OpenSSHPublicKeySpec)keySpec).getEncoded());
if (params instanceof ECPublicKeyParameters)
{
ECDomainParameters parameters = ((ECPublicKeyParameters)params).getParameters();
return engineGeneratePublic(
new ECPublicKeySpec(((ECPublicKeyParameters)params).getQ(),
new ECParameterSpec(parameters.getCurve(), parameters.getG(), parameters.getN(), parameters.getH(), parameters.getSeed())
));
}
else
{
throw new IllegalArgumentException("openssh key is not ec public key");
}
}
}
catch (Exception e)
{
throw new InvalidKeySpecException("invalid KeySpec: " + e.getMessage(), e);
}
return super.engineGeneratePublic(keySpec);
}
public PrivateKey generatePrivate(PrivateKeyInfo keyInfo)
throws IOException
{
ASN1ObjectIdentifier algOid = keyInfo.getPrivateKeyAlgorithm().getAlgorithm();
if (algOid.equals(X9ObjectIdentifiers.id_ecPublicKey))
{
return new BCECPrivateKey(algorithm, keyInfo, configuration);
}
else
{
throw new IOException("algorithm identifier " + algOid + " in key not recognised");
}
}
public PublicKey generatePublic(SubjectPublicKeyInfo keyInfo)
throws IOException
{
ASN1ObjectIdentifier algOid = keyInfo.getAlgorithm().getAlgorithm();
if (algOid.equals(X9ObjectIdentifiers.id_ecPublicKey))
{
return new BCECPublicKey(algorithm, keyInfo, configuration);
}
else
{
throw new IOException("algorithm identifier " + algOid + " in key not recognised");
}
}
public static class EC
extends KeyFactorySpi
{
public EC()
{
super("EC", BouncyCastleProvider.CONFIGURATION);
}
}
public static class ECDSA
extends KeyFactorySpi
{
public ECDSA()
{
super("ECDSA", BouncyCastleProvider.CONFIGURATION);
}
}
public static class ECGOST3410
extends KeyFactorySpi
{
public ECGOST3410()
{
super("ECGOST3410", BouncyCastleProvider.CONFIGURATION);
}
}
public static class ECGOST3410_2012
extends KeyFactorySpi
{
public ECGOST3410_2012()
{
super("ECGOST3410-2012", BouncyCastleProvider.CONFIGURATION);
}
}
public static class ECDH
extends KeyFactorySpi
{
public ECDH()
{
super("ECDH", BouncyCastleProvider.CONFIGURATION);
}
}
public static class ECDHC
extends KeyFactorySpi
{
public ECDHC()
{
super("ECDHC", BouncyCastleProvider.CONFIGURATION);
}
}
public static class ECMQV
extends KeyFactorySpi
{
public ECMQV()
{
super("ECMQV", BouncyCastleProvider.CONFIGURATION);
}
}
}