org.bouncycastle.jce.provider.JDKAlgorithmParameters Maven / Gradle / Ivy
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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 1.6.
package org.bouncycastle.jce.provider;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1InputStream;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1OctetString;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.DERInteger;
import org.bouncycastle.asn1.DERNull;
import org.bouncycastle.asn1.DERObjectIdentifier;
import org.bouncycastle.asn1.DEROctetString;
import org.bouncycastle.asn1.DEROutputStream;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.cryptopro.GOST3410PublicKeyAlgParameters;
import org.bouncycastle.asn1.oiw.ElGamalParameter;
import org.bouncycastle.asn1.pkcs.DHParameter;
import org.bouncycastle.asn1.pkcs.PKCS12PBEParams;
import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
import org.bouncycastle.asn1.pkcs.RC2CBCParameter;
import org.bouncycastle.asn1.pkcs.RSAESOAEPparams;
import org.bouncycastle.asn1.pkcs.RSASSAPSSparams;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import org.bouncycastle.asn1.x509.DSAParameter;
import org.bouncycastle.jce.spec.ElGamalParameterSpec;
import org.bouncycastle.jce.spec.GOST3410ParameterSpec;
import org.bouncycastle.jce.spec.GOST3410PublicKeyParameterSetSpec;
import org.bouncycastle.jce.spec.IESParameterSpec;
import javax.crypto.spec.DHParameterSpec;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.OAEPParameterSpec;
import javax.crypto.spec.PBEParameterSpec;
import javax.crypto.spec.PSource;
import javax.crypto.spec.RC2ParameterSpec;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.security.AlgorithmParametersSpi;
import java.security.spec.AlgorithmParameterSpec;
import java.security.spec.DSAParameterSpec;
import java.security.spec.InvalidParameterSpecException;
import java.security.spec.MGF1ParameterSpec;
import java.security.spec.PSSParameterSpec;
public abstract class JDKAlgorithmParameters
extends AlgorithmParametersSpi
{
protected boolean isASN1FormatString(String format)
{
return format == null || format.equals("ASN.1");
}
protected AlgorithmParameterSpec engineGetParameterSpec(
Class paramSpec)
throws InvalidParameterSpecException
{
if (paramSpec == null)
{
throw new NullPointerException("argument to getParameterSpec must not be null");
}
return localEngineGetParameterSpec(paramSpec);
}
protected abstract AlgorithmParameterSpec localEngineGetParameterSpec(Class paramSpec)
throws InvalidParameterSpecException;
public static class IVAlgorithmParameters
extends JDKAlgorithmParameters
{
private byte[] iv;
protected byte[] engineGetEncoded()
throws IOException
{
return engineGetEncoded("ASN.1");
}
protected byte[] engineGetEncoded(
String format)
throws IOException
{
if (isASN1FormatString(format))
{
return new DEROctetString(engineGetEncoded("RAW")).getEncoded();
}
if (format.equals("RAW"))
{
byte[] tmp = new byte[iv.length];
System.arraycopy(iv, 0, tmp, 0, iv.length);
return tmp;
}
return null;
}
protected AlgorithmParameterSpec localEngineGetParameterSpec(
Class paramSpec)
throws InvalidParameterSpecException
{
if (paramSpec == IvParameterSpec.class)
{
return new IvParameterSpec(iv);
}
throw new InvalidParameterSpecException("unknown parameter spec passed to IV parameters object.");
}
protected void engineInit(
AlgorithmParameterSpec paramSpec)
throws InvalidParameterSpecException
{
if (!(paramSpec instanceof IvParameterSpec))
{
throw new InvalidParameterSpecException("IvParameterSpec required to initialise a IV parameters algorithm parameters object");
}
this.iv = ((IvParameterSpec)paramSpec).getIV();
}
protected void engineInit(
byte[] params)
throws IOException
{
//
// check that we don't have a DER encoded octet string
//
if ((params.length % 8) != 0
&& params[0] == 0x04 && params[1] == params.length - 2)
{
ASN1InputStream aIn = new ASN1InputStream(params);
ASN1OctetString oct = (ASN1OctetString)aIn.readObject();
params = oct.getOctets();
}
this.iv = new byte[params.length];
System.arraycopy(params, 0, iv, 0, iv.length);
}
protected void engineInit(
byte[] params,
String format)
throws IOException
{
if (isASN1FormatString(format))
{
ASN1InputStream aIn = new ASN1InputStream(params);
try
{
ASN1OctetString oct = (ASN1OctetString)aIn.readObject();
engineInit(oct.getOctets());
}
catch (Exception e)
{
throw new IOException("Exception decoding: " + e);
}
return;
}
if (format.equals("RAW"))
{
engineInit(params);
return;
}
throw new IOException("Unknown parameters format in IV parameters object");
}
protected String engineToString()
{
return "IV Parameters";
}
}
public static class RC2AlgorithmParameters
extends JDKAlgorithmParameters
{
private short[] table = {
0xbd, 0x56, 0xea, 0xf2, 0xa2, 0xf1, 0xac, 0x2a, 0xb0, 0x93, 0xd1, 0x9c, 0x1b, 0x33, 0xfd, 0xd0,
0x30, 0x04, 0xb6, 0xdc, 0x7d, 0xdf, 0x32, 0x4b, 0xf7, 0xcb, 0x45, 0x9b, 0x31, 0xbb, 0x21, 0x5a,
0x41, 0x9f, 0xe1, 0xd9, 0x4a, 0x4d, 0x9e, 0xda, 0xa0, 0x68, 0x2c, 0xc3, 0x27, 0x5f, 0x80, 0x36,
0x3e, 0xee, 0xfb, 0x95, 0x1a, 0xfe, 0xce, 0xa8, 0x34, 0xa9, 0x13, 0xf0, 0xa6, 0x3f, 0xd8, 0x0c,
0x78, 0x24, 0xaf, 0x23, 0x52, 0xc1, 0x67, 0x17, 0xf5, 0x66, 0x90, 0xe7, 0xe8, 0x07, 0xb8, 0x60,
0x48, 0xe6, 0x1e, 0x53, 0xf3, 0x92, 0xa4, 0x72, 0x8c, 0x08, 0x15, 0x6e, 0x86, 0x00, 0x84, 0xfa,
0xf4, 0x7f, 0x8a, 0x42, 0x19, 0xf6, 0xdb, 0xcd, 0x14, 0x8d, 0x50, 0x12, 0xba, 0x3c, 0x06, 0x4e,
0xec, 0xb3, 0x35, 0x11, 0xa1, 0x88, 0x8e, 0x2b, 0x94, 0x99, 0xb7, 0x71, 0x74, 0xd3, 0xe4, 0xbf,
0x3a, 0xde, 0x96, 0x0e, 0xbc, 0x0a, 0xed, 0x77, 0xfc, 0x37, 0x6b, 0x03, 0x79, 0x89, 0x62, 0xc6,
0xd7, 0xc0, 0xd2, 0x7c, 0x6a, 0x8b, 0x22, 0xa3, 0x5b, 0x05, 0x5d, 0x02, 0x75, 0xd5, 0x61, 0xe3,
0x18, 0x8f, 0x55, 0x51, 0xad, 0x1f, 0x0b, 0x5e, 0x85, 0xe5, 0xc2, 0x57, 0x63, 0xca, 0x3d, 0x6c,
0xb4, 0xc5, 0xcc, 0x70, 0xb2, 0x91, 0x59, 0x0d, 0x47, 0x20, 0xc8, 0x4f, 0x58, 0xe0, 0x01, 0xe2,
0x16, 0x38, 0xc4, 0x6f, 0x3b, 0x0f, 0x65, 0x46, 0xbe, 0x7e, 0x2d, 0x7b, 0x82, 0xf9, 0x40, 0xb5,
0x1d, 0x73, 0xf8, 0xeb, 0x26, 0xc7, 0x87, 0x97, 0x25, 0x54, 0xb1, 0x28, 0xaa, 0x98, 0x9d, 0xa5,
0x64, 0x6d, 0x7a, 0xd4, 0x10, 0x81, 0x44, 0xef, 0x49, 0xd6, 0xae, 0x2e, 0xdd, 0x76, 0x5c, 0x2f,
0xa7, 0x1c, 0xc9, 0x09, 0x69, 0x9a, 0x83, 0xcf, 0x29, 0x39, 0xb9, 0xe9, 0x4c, 0xff, 0x43, 0xab
};
private short[] ekb = {
0x5d, 0xbe, 0x9b, 0x8b, 0x11, 0x99, 0x6e, 0x4d, 0x59, 0xf3, 0x85, 0xa6, 0x3f, 0xb7, 0x83, 0xc5,
0xe4, 0x73, 0x6b, 0x3a, 0x68, 0x5a, 0xc0, 0x47, 0xa0, 0x64, 0x34, 0x0c, 0xf1, 0xd0, 0x52, 0xa5,
0xb9, 0x1e, 0x96, 0x43, 0x41, 0xd8, 0xd4, 0x2c, 0xdb, 0xf8, 0x07, 0x77, 0x2a, 0xca, 0xeb, 0xef,
0x10, 0x1c, 0x16, 0x0d, 0x38, 0x72, 0x2f, 0x89, 0xc1, 0xf9, 0x80, 0xc4, 0x6d, 0xae, 0x30, 0x3d,
0xce, 0x20, 0x63, 0xfe, 0xe6, 0x1a, 0xc7, 0xb8, 0x50, 0xe8, 0x24, 0x17, 0xfc, 0x25, 0x6f, 0xbb,
0x6a, 0xa3, 0x44, 0x53, 0xd9, 0xa2, 0x01, 0xab, 0xbc, 0xb6, 0x1f, 0x98, 0xee, 0x9a, 0xa7, 0x2d,
0x4f, 0x9e, 0x8e, 0xac, 0xe0, 0xc6, 0x49, 0x46, 0x29, 0xf4, 0x94, 0x8a, 0xaf, 0xe1, 0x5b, 0xc3,
0xb3, 0x7b, 0x57, 0xd1, 0x7c, 0x9c, 0xed, 0x87, 0x40, 0x8c, 0xe2, 0xcb, 0x93, 0x14, 0xc9, 0x61,
0x2e, 0xe5, 0xcc, 0xf6, 0x5e, 0xa8, 0x5c, 0xd6, 0x75, 0x8d, 0x62, 0x95, 0x58, 0x69, 0x76, 0xa1,
0x4a, 0xb5, 0x55, 0x09, 0x78, 0x33, 0x82, 0xd7, 0xdd, 0x79, 0xf5, 0x1b, 0x0b, 0xde, 0x26, 0x21,
0x28, 0x74, 0x04, 0x97, 0x56, 0xdf, 0x3c, 0xf0, 0x37, 0x39, 0xdc, 0xff, 0x06, 0xa4, 0xea, 0x42,
0x08, 0xda, 0xb4, 0x71, 0xb0, 0xcf, 0x12, 0x7a, 0x4e, 0xfa, 0x6c, 0x1d, 0x84, 0x00, 0xc8, 0x7f,
0x91, 0x45, 0xaa, 0x2b, 0xc2, 0xb1, 0x8f, 0xd5, 0xba, 0xf2, 0xad, 0x19, 0xb2, 0x67, 0x36, 0xf7,
0x0f, 0x0a, 0x92, 0x7d, 0xe3, 0x9d, 0xe9, 0x90, 0x3e, 0x23, 0x27, 0x66, 0x13, 0xec, 0x81, 0x15,
0xbd, 0x22, 0xbf, 0x9f, 0x7e, 0xa9, 0x51, 0x4b, 0x4c, 0xfb, 0x02, 0xd3, 0x70, 0x86, 0x31, 0xe7,
0x3b, 0x05, 0x03, 0x54, 0x60, 0x48, 0x65, 0x18, 0xd2, 0xcd, 0x5f, 0x32, 0x88, 0x0e, 0x35, 0xfd
};
private byte[] iv;
private int parameterVersion = 58;
protected byte[] engineGetEncoded()
{
byte[] tmp = new byte[iv.length];
System.arraycopy(iv, 0, tmp, 0, iv.length);
return tmp;
}
protected byte[] engineGetEncoded(
String format)
throws IOException
{
if (isASN1FormatString(format))
{
if (parameterVersion == -1)
{
return new RC2CBCParameter(engineGetEncoded()).getEncoded();
}
else
{
return new RC2CBCParameter(parameterVersion, engineGetEncoded()).getEncoded();
}
}
if (format.equals("RAW"))
{
return engineGetEncoded();
}
return null;
}
protected AlgorithmParameterSpec localEngineGetParameterSpec(
Class paramSpec)
throws InvalidParameterSpecException
{
if (paramSpec == RC2ParameterSpec.class)
{
if (parameterVersion != -1)
{
if (parameterVersion < 256)
{
return new RC2ParameterSpec(ekb[parameterVersion], iv);
}
else
{
return new RC2ParameterSpec(parameterVersion, iv);
}
}
}
if (paramSpec == IvParameterSpec.class)
{
return new IvParameterSpec(iv);
}
throw new InvalidParameterSpecException("unknown parameter spec passed to RC2 parameters object.");
}
protected void engineInit(
AlgorithmParameterSpec paramSpec)
throws InvalidParameterSpecException
{
if (paramSpec instanceof IvParameterSpec)
{
this.iv = ((IvParameterSpec)paramSpec).getIV();
}
else if (paramSpec instanceof RC2ParameterSpec)
{
int effKeyBits = ((RC2ParameterSpec)paramSpec).getEffectiveKeyBits();
if (effKeyBits != -1)
{
if (effKeyBits < 256)
{
parameterVersion = table[effKeyBits];
}
else
{
parameterVersion = effKeyBits;
}
}
this.iv = ((RC2ParameterSpec)paramSpec).getIV();
}
else
{
throw new InvalidParameterSpecException("IvParameterSpec or RC2ParameterSpec required to initialise a RC2 parameters algorithm parameters object");
}
}
protected void engineInit(
byte[] params)
throws IOException
{
this.iv = new byte[params.length];
System.arraycopy(params, 0, iv, 0, iv.length);
}
protected void engineInit(
byte[] params,
String format)
throws IOException
{
if (isASN1FormatString(format))
{
ASN1InputStream aIn = new ASN1InputStream(params);
RC2CBCParameter p = RC2CBCParameter.getInstance(aIn.readObject());
if (p.getRC2ParameterVersion() != null)
{
parameterVersion = p.getRC2ParameterVersion().intValue();
}
iv = p.getIV();
return;
}
if (format.equals("RAW"))
{
engineInit(params);
return;
}
throw new IOException("Unknown parameters format in IV parameters object");
}
protected String engineToString()
{
return "RC2 Parameters";
}
}
public static class PKCS12PBE
extends JDKAlgorithmParameters
{
PKCS12PBEParams params;
protected byte[] engineGetEncoded()
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
DEROutputStream dOut = new DEROutputStream(bOut);
try
{
dOut.writeObject(params);
}
catch (IOException e)
{
throw new RuntimeException("Oooops! " + e.toString());
}
return bOut.toByteArray();
}
protected byte[] engineGetEncoded(
String format)
{
if (isASN1FormatString(format))
{
return engineGetEncoded();
}
return null;
}
protected AlgorithmParameterSpec localEngineGetParameterSpec(
Class paramSpec)
throws InvalidParameterSpecException
{
if (paramSpec == PBEParameterSpec.class)
{
return new PBEParameterSpec(params.getIV(),
params.getIterations().intValue());
}
throw new InvalidParameterSpecException("unknown parameter spec passed to PKCS12 PBE parameters object.");
}
protected void engineInit(
AlgorithmParameterSpec paramSpec)
throws InvalidParameterSpecException
{
if (!(paramSpec instanceof PBEParameterSpec))
{
throw new InvalidParameterSpecException("PBEParameterSpec required to initialise a PKCS12 PBE parameters algorithm parameters object");
}
PBEParameterSpec pbeSpec = (PBEParameterSpec)paramSpec;
this.params = new PKCS12PBEParams(pbeSpec.getSalt(),
pbeSpec.getIterationCount());
}
protected void engineInit(
byte[] params)
throws IOException
{
ASN1InputStream aIn = new ASN1InputStream(params);
this.params = PKCS12PBEParams.getInstance(aIn.readObject());
}
protected void engineInit(
byte[] params,
String format)
throws IOException
{
if (isASN1FormatString(format))
{
engineInit(params);
return;
}
throw new IOException("Unknown parameters format in PKCS12 PBE parameters object");
}
protected String engineToString()
{
return "PKCS12 PBE Parameters";
}
}
public static class DH
extends JDKAlgorithmParameters
{
DHParameterSpec currentSpec;
/**
* Return the PKCS#3 ASN.1 structure DHParameter.
*
*
* DHParameter ::= SEQUENCE {
* prime INTEGER, -- p
* base INTEGER, -- g
* privateValueLength INTEGER OPTIONAL}
*
*/
protected byte[] engineGetEncoded()
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
DEROutputStream dOut = new DEROutputStream(bOut);
DHParameter dhP = new DHParameter(currentSpec.getP(), currentSpec.getG(), currentSpec.getL());
try
{
dOut.writeObject(dhP);
dOut.close();
}
catch (IOException e)
{
throw new RuntimeException("Error encoding DHParameters");
}
return bOut.toByteArray();
}
protected byte[] engineGetEncoded(
String format)
{
if (isASN1FormatString(format))
{
return engineGetEncoded();
}
return null;
}
protected AlgorithmParameterSpec localEngineGetParameterSpec(
Class paramSpec)
throws InvalidParameterSpecException
{
if (paramSpec == DHParameterSpec.class)
{
return currentSpec;
}
throw new InvalidParameterSpecException("unknown parameter spec passed to DH parameters object.");
}
protected void engineInit(
AlgorithmParameterSpec paramSpec)
throws InvalidParameterSpecException
{
if (!(paramSpec instanceof DHParameterSpec))
{
throw new InvalidParameterSpecException("DHParameterSpec required to initialise a Diffie-Hellman algorithm parameters object");
}
this.currentSpec = (DHParameterSpec)paramSpec;
}
protected void engineInit(
byte[] params)
throws IOException
{
ASN1InputStream aIn = new ASN1InputStream(params);
try
{
DHParameter dhP = new DHParameter((ASN1Sequence)aIn.readObject());
if (dhP.getL() != null)
{
currentSpec = new DHParameterSpec(dhP.getP(), dhP.getG(), dhP.getL().intValue());
}
else
{
currentSpec = new DHParameterSpec(dhP.getP(), dhP.getG());
}
}
catch (ClassCastException e)
{
throw new IOException("Not a valid DH Parameter encoding.");
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new IOException("Not a valid DH Parameter encoding.");
}
}
protected void engineInit(
byte[] params,
String format)
throws IOException
{
if (isASN1FormatString(format))
{
engineInit(params);
}
else
{
throw new IOException("Unknown parameter format " + format);
}
}
protected String engineToString()
{
return "Diffie-Hellman Parameters";
}
}
public static class DSA
extends JDKAlgorithmParameters
{
DSAParameterSpec currentSpec;
/**
* Return the X.509 ASN.1 structure DSAParameter.
*
*
* DSAParameter ::= SEQUENCE {
* prime INTEGER, -- p
* subprime INTEGER, -- q
* base INTEGER, -- g}
*
*/
protected byte[] engineGetEncoded()
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
DEROutputStream dOut = new DEROutputStream(bOut);
DSAParameter dsaP = new DSAParameter(currentSpec.getP(), currentSpec.getQ(), currentSpec.getG());
try
{
dOut.writeObject(dsaP);
dOut.close();
}
catch (IOException e)
{
throw new RuntimeException("Error encoding DSAParameters");
}
return bOut.toByteArray();
}
protected byte[] engineGetEncoded(
String format)
{
if (isASN1FormatString(format))
{
return engineGetEncoded();
}
return null;
}
protected AlgorithmParameterSpec localEngineGetParameterSpec(
Class paramSpec)
throws InvalidParameterSpecException
{
if (paramSpec == DSAParameterSpec.class)
{
return currentSpec;
}
throw new InvalidParameterSpecException("unknown parameter spec passed to DSA parameters object.");
}
protected void engineInit(
AlgorithmParameterSpec paramSpec)
throws InvalidParameterSpecException
{
if (!(paramSpec instanceof DSAParameterSpec))
{
throw new InvalidParameterSpecException("DSAParameterSpec required to initialise a DSA algorithm parameters object");
}
this.currentSpec = (DSAParameterSpec)paramSpec;
}
protected void engineInit(
byte[] params)
throws IOException
{
ASN1InputStream aIn = new ASN1InputStream(params);
try
{
DSAParameter dsaP = new DSAParameter((ASN1Sequence)aIn.readObject());
currentSpec = new DSAParameterSpec(dsaP.getP(), dsaP.getQ(), dsaP.getG());
}
catch (ClassCastException e)
{
throw new IOException("Not a valid DSA Parameter encoding.");
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new IOException("Not a valid DSA Parameter encoding.");
}
}
protected void engineInit(
byte[] params,
String format)
throws IOException
{
if (isASN1FormatString(format) || format.equalsIgnoreCase("X.509"))
{
engineInit(params);
}
else
{
throw new IOException("Unknown parameter format " + format);
}
}
protected String engineToString()
{
return "DSA Parameters";
}
}
public static class GOST3410
extends JDKAlgorithmParameters
{
GOST3410ParameterSpec currentSpec;
/**
* Return the X.509 ASN.1 structure GOST3410Parameter.
*
*
* GOST3410Parameter ::= SEQUENCE {
* prime INTEGER, -- p
* subprime INTEGER, -- q
* base INTEGER, -- a}
*
*/
protected byte[] engineGetEncoded()
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
DEROutputStream dOut = new DEROutputStream(bOut);
GOST3410PublicKeyAlgParameters gost3410P = new GOST3410PublicKeyAlgParameters(new DERObjectIdentifier(currentSpec.getPublicKeyParamSetOID()), new DERObjectIdentifier(currentSpec.getDigestParamSetOID()), new DERObjectIdentifier(currentSpec.getEncryptionParamSetOID()));
try
{
dOut.writeObject(gost3410P);
dOut.close();
}
catch (IOException e)
{
throw new RuntimeException("Error encoding GOST3410Parameters");
}
return bOut.toByteArray();
}
protected byte[] engineGetEncoded(
String format)
{
if (isASN1FormatString(format) || format.equalsIgnoreCase("X.509"))
{
return engineGetEncoded();
}
return null;
}
protected AlgorithmParameterSpec localEngineGetParameterSpec(
Class paramSpec)
throws InvalidParameterSpecException
{
if (paramSpec == GOST3410PublicKeyParameterSetSpec.class)
{
return currentSpec;
}
throw new InvalidParameterSpecException("unknown parameter spec passed to GOST3410 parameters object.");
}
protected void engineInit(
AlgorithmParameterSpec paramSpec)
throws InvalidParameterSpecException
{
if (!(paramSpec instanceof GOST3410ParameterSpec))
{
throw new InvalidParameterSpecException("GOST3410ParameterSpec required to initialise a GOST3410 algorithm parameters object");
}
this.currentSpec = (GOST3410ParameterSpec)paramSpec;
}
protected void engineInit(
byte[] params)
throws IOException
{
try
{
ASN1Sequence seq = (ASN1Sequence) ASN1Object.fromByteArray(params);
this.currentSpec = GOST3410ParameterSpec.fromPublicKeyAlg(
new GOST3410PublicKeyAlgParameters(seq));
}
catch (ClassCastException e)
{
throw new IOException("Not a valid GOST3410 Parameter encoding.");
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new IOException("Not a valid GOST3410 Parameter encoding.");
}
}
protected void engineInit(
byte[] params,
String format)
throws IOException
{
if (isASN1FormatString(format) || format.equalsIgnoreCase("X.509"))
{
engineInit(params);
}
else
{
throw new IOException("Unknown parameter format " + format);
}
}
protected String engineToString()
{
return "GOST3410 Parameters";
}
}
public static class ElGamal
extends JDKAlgorithmParameters
{
ElGamalParameterSpec currentSpec;
/**
* Return the X.509 ASN.1 structure ElGamalParameter.
*
*
* ElGamalParameter ::= SEQUENCE {
* prime INTEGER, -- p
* base INTEGER, -- g}
*
*/
protected byte[] engineGetEncoded()
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
DEROutputStream dOut = new DEROutputStream(bOut);
ElGamalParameter elP = new ElGamalParameter(currentSpec.getP(), currentSpec.getG());
try
{
dOut.writeObject(elP);
dOut.close();
}
catch (IOException e)
{
throw new RuntimeException("Error encoding ElGamalParameters");
}
return bOut.toByteArray();
}
protected byte[] engineGetEncoded(
String format)
{
if (isASN1FormatString(format) || format.equalsIgnoreCase("X.509"))
{
return engineGetEncoded();
}
return null;
}
protected AlgorithmParameterSpec localEngineGetParameterSpec(
Class paramSpec)
throws InvalidParameterSpecException
{
if (paramSpec == ElGamalParameterSpec.class)
{
return currentSpec;
}
else if (paramSpec == DHParameterSpec.class)
{
return new DHParameterSpec(currentSpec.getP(), currentSpec.getG());
}
throw new InvalidParameterSpecException("unknown parameter spec passed to ElGamal parameters object.");
}
protected void engineInit(
AlgorithmParameterSpec paramSpec)
throws InvalidParameterSpecException
{
if (!(paramSpec instanceof ElGamalParameterSpec) && !(paramSpec instanceof DHParameterSpec))
{
throw new InvalidParameterSpecException("DHParameterSpec required to initialise a ElGamal algorithm parameters object");
}
if (paramSpec instanceof ElGamalParameterSpec)
{
this.currentSpec = (ElGamalParameterSpec)paramSpec;
}
else
{
DHParameterSpec s = (DHParameterSpec)paramSpec;
this.currentSpec = new ElGamalParameterSpec(s.getP(), s.getG());
}
}
protected void engineInit(
byte[] params)
throws IOException
{
ASN1InputStream aIn = new ASN1InputStream(params);
try
{
ElGamalParameter elP = new ElGamalParameter((ASN1Sequence)aIn.readObject());
currentSpec = new ElGamalParameterSpec(elP.getP(), elP.getG());
}
catch (ClassCastException e)
{
throw new IOException("Not a valid ElGamal Parameter encoding.");
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new IOException("Not a valid ElGamal Parameter encoding.");
}
}
protected void engineInit(
byte[] params,
String format)
throws IOException
{
if (isASN1FormatString(format) || format.equalsIgnoreCase("X.509"))
{
engineInit(params);
}
else
{
throw new IOException("Unknown parameter format " + format);
}
}
protected String engineToString()
{
return "ElGamal Parameters";
}
}
public static class IES
extends JDKAlgorithmParameters
{
IESParameterSpec currentSpec;
/**
* in the abscence of a standard way of doing it this will do for
* now...
*/
protected byte[] engineGetEncoded()
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
DEROutputStream dOut = new DEROutputStream(bOut);
try
{
ASN1EncodableVector v = new ASN1EncodableVector();
v.add(new DEROctetString(currentSpec.getDerivationV()));
v.add(new DEROctetString(currentSpec.getEncodingV()));
v.add(new DERInteger(currentSpec.getMacKeySize()));
dOut.writeObject(new DERSequence(v));
dOut.close();
}
catch (IOException e)
{
throw new RuntimeException("Error encoding IESParameters");
}
return bOut.toByteArray();
}
protected byte[] engineGetEncoded(
String format)
{
if (isASN1FormatString(format) || format.equalsIgnoreCase("X.509"))
{
return engineGetEncoded();
}
return null;
}
protected AlgorithmParameterSpec localEngineGetParameterSpec(
Class paramSpec)
throws InvalidParameterSpecException
{
if (paramSpec == IESParameterSpec.class)
{
return currentSpec;
}
throw new InvalidParameterSpecException("unknown parameter spec passed to ElGamal parameters object.");
}
protected void engineInit(
AlgorithmParameterSpec paramSpec)
throws InvalidParameterSpecException
{
if (!(paramSpec instanceof IESParameterSpec))
{
throw new InvalidParameterSpecException("IESParameterSpec required to initialise a IES algorithm parameters object");
}
this.currentSpec = (IESParameterSpec)paramSpec;
}
protected void engineInit(
byte[] params)
throws IOException
{
ASN1InputStream aIn = new ASN1InputStream(params);
try
{
ASN1Sequence s = (ASN1Sequence)aIn.readObject();
this.currentSpec = new IESParameterSpec(
((ASN1OctetString)s.getObjectAt(0)).getOctets(),
((ASN1OctetString)s.getObjectAt(0)).getOctets(),
((DERInteger)s.getObjectAt(0)).getValue().intValue());
}
catch (ClassCastException e)
{
throw new IOException("Not a valid IES Parameter encoding.");
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new IOException("Not a valid IES Parameter encoding.");
}
}
protected void engineInit(
byte[] params,
String format)
throws IOException
{
if (isASN1FormatString(format) || format.equalsIgnoreCase("X.509"))
{
engineInit(params);
}
else
{
throw new IOException("Unknown parameter format " + format);
}
}
protected String engineToString()
{
return "IES Parameters";
}
}
public static class OAEP
extends JDKAlgorithmParameters
{
OAEPParameterSpec currentSpec;
/**
* Return the PKCS#1 ASN.1 structure RSAES-OAEP-params.
*/
protected byte[] engineGetEncoded()
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
DEROutputStream dOut = new DEROutputStream(bOut);
AlgorithmIdentifier hashAlgorithm = new AlgorithmIdentifier(
JCEDigestUtil.getOID(currentSpec.getDigestAlgorithm()),
new DERNull());
MGF1ParameterSpec mgfSpec = (MGF1ParameterSpec)currentSpec.getMGFParameters();
AlgorithmIdentifier maskGenAlgorithm = new AlgorithmIdentifier(
PKCSObjectIdentifiers.id_mgf1,
new AlgorithmIdentifier(JCEDigestUtil.getOID(mgfSpec.getDigestAlgorithm()), new DERNull()));
PSource.PSpecified pSource = (PSource.PSpecified)currentSpec.getPSource();
AlgorithmIdentifier pSourceAlgorithm = new AlgorithmIdentifier(
PKCSObjectIdentifiers.id_pSpecified, new DEROctetString(pSource.getValue()));
RSAESOAEPparams oaepP = new RSAESOAEPparams(hashAlgorithm, maskGenAlgorithm, pSourceAlgorithm);
try
{
dOut.writeObject(oaepP);
dOut.close();
}
catch (IOException e)
{
throw new RuntimeException("Error encoding OAEPParameters");
}
return bOut.toByteArray();
}
protected byte[] engineGetEncoded(
String format)
{
if (isASN1FormatString(format) || format.equalsIgnoreCase("X.509"))
{
return engineGetEncoded();
}
return null;
}
protected AlgorithmParameterSpec localEngineGetParameterSpec(
Class paramSpec)
throws InvalidParameterSpecException
{
if (paramSpec == OAEPParameterSpec.class && currentSpec != null)
{
return currentSpec;
}
throw new InvalidParameterSpecException("unknown parameter spec passed to OAEP parameters object.");
}
protected void engineInit(
AlgorithmParameterSpec paramSpec)
throws InvalidParameterSpecException
{
if (!(paramSpec instanceof OAEPParameterSpec))
{
throw new InvalidParameterSpecException("OAEPParameterSpec required to initialise an OAEP algorithm parameters object");
}
this.currentSpec = (OAEPParameterSpec)paramSpec;
}
protected void engineInit(
byte[] params)
throws IOException
{
ASN1InputStream aIn = new ASN1InputStream(params);
try
{
RSAESOAEPparams oaepP = new RSAESOAEPparams((ASN1Sequence)aIn.readObject());
currentSpec = new OAEPParameterSpec(
oaepP.getHashAlgorithm().getObjectId().getId(),
oaepP.getMaskGenAlgorithm().getObjectId().getId(),
new MGF1ParameterSpec(AlgorithmIdentifier.getInstance(oaepP.getMaskGenAlgorithm().getParameters()).getObjectId().getId()),
new PSource.PSpecified(ASN1OctetString.getInstance(oaepP.getPSourceAlgorithm().getParameters()).getOctets()));
}
catch (ClassCastException e)
{
throw new IOException("Not a valid OAEP Parameter encoding.");
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new IOException("Not a valid OAEP Parameter encoding.");
}
}
protected void engineInit(
byte[] params,
String format)
throws IOException
{
if (format.equalsIgnoreCase("X.509")
|| format.equalsIgnoreCase("ASN.1"))
{
engineInit(params);
}
else
{
throw new IOException("Unknown parameter format " + format);
}
}
protected String engineToString()
{
return "OAEP Parameters";
}
}
public static class PSS
extends JDKAlgorithmParameters
{
PSSParameterSpec currentSpec;
/**
* Return the PKCS#1 ASN.1 structure RSASSA-PSS-params.
*/
protected byte[] engineGetEncoded()
throws IOException
{
PSSParameterSpec pssSpec = currentSpec;
AlgorithmIdentifier hashAlgorithm = new AlgorithmIdentifier(
JCEDigestUtil.getOID(pssSpec.getDigestAlgorithm()),
new DERNull());
MGF1ParameterSpec mgfSpec = (MGF1ParameterSpec)pssSpec.getMGFParameters();
AlgorithmIdentifier maskGenAlgorithm = new AlgorithmIdentifier(
PKCSObjectIdentifiers.id_mgf1,
new AlgorithmIdentifier(JCEDigestUtil.getOID(mgfSpec.getDigestAlgorithm()), new DERNull()));
RSASSAPSSparams pssP = new RSASSAPSSparams(hashAlgorithm, maskGenAlgorithm, new DERInteger(pssSpec.getSaltLength()), new DERInteger(pssSpec.getTrailerField()));
return pssP.getEncoded("DER");
}
protected byte[] engineGetEncoded(
String format)
throws IOException
{
if (format.equalsIgnoreCase("X.509")
|| format.equalsIgnoreCase("ASN.1"))
{
return engineGetEncoded();
}
return null;
}
protected AlgorithmParameterSpec localEngineGetParameterSpec(
Class paramSpec)
throws InvalidParameterSpecException
{
if (paramSpec == PSSParameterSpec.class && currentSpec != null)
{
return currentSpec;
}
throw new InvalidParameterSpecException("unknown parameter spec passed to PSS parameters object.");
}
protected void engineInit(
AlgorithmParameterSpec paramSpec)
throws InvalidParameterSpecException
{
if (!(paramSpec instanceof PSSParameterSpec))
{
throw new InvalidParameterSpecException("PSSParameterSpec required to initialise an PSS algorithm parameters object");
}
this.currentSpec = (PSSParameterSpec)paramSpec;
}
protected void engineInit(
byte[] params)
throws IOException
{
ASN1InputStream aIn = new ASN1InputStream(params);
try
{
RSASSAPSSparams pssP = new RSASSAPSSparams((ASN1Sequence)aIn.readObject());
currentSpec = new PSSParameterSpec(
pssP.getHashAlgorithm().getObjectId().getId(),
pssP.getMaskGenAlgorithm().getObjectId().getId(),
new MGF1ParameterSpec(AlgorithmIdentifier.getInstance(pssP.getMaskGenAlgorithm().getParameters()).getObjectId().getId()),
pssP.getSaltLength().getValue().intValue(),
pssP.getTrailerField().getValue().intValue());
}
catch (ClassCastException e)
{
throw new IOException("Not a valid PSS Parameter encoding.");
}
catch (ArrayIndexOutOfBoundsException e)
{
throw new IOException("Not a valid PSS Parameter encoding.");
}
}
protected void engineInit(
byte[] params,
String format)
throws IOException
{
if (isASN1FormatString(format) || format.equalsIgnoreCase("X.509"))
{
engineInit(params);
}
else
{
throw new IOException("Unknown parameter format " + format);
}
}
protected String engineToString()
{
return "PSS Parameters";
}
}
}