/*
* Copyright 2012-2014 Brian Campbell
*
* 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 org.jose4j.jws;
import org.jose4j.jwk.RsaJsonWebKey;
import org.jose4j.jwx.KeyValidationSupport;
import org.jose4j.lang.InvalidKeyException;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.interfaces.RSAPrivateKey;
import java.security.interfaces.RSAPublicKey;
import java.security.spec.MGF1ParameterSpec;
import java.security.spec.PSSParameterSpec;
/**
*/
public class RsaUsingShaAlgorithm extends BaseSignatureAlgorithm implements JsonWebSignatureAlgorithm
{
static final int TRAILER = 1;
static final String MGF1 = "MGF1";
public RsaUsingShaAlgorithm(String id, String javaAlgo)
{
super(id, javaAlgo, RsaJsonWebKey.KEY_TYPE);
}
public void validatePublicKey(PublicKey key) throws InvalidKeyException
{
KeyValidationSupport.checkRsaKeySize((RSAPublicKey) key);
}
public void validatePrivateKey(PrivateKey privateKey) throws InvalidKeyException
{
KeyValidationSupport.checkRsaKeySize((RSAPrivateKey) privateKey);
}
public static class RsaPssSha256 extends RsaUsingShaAlgorithm
{
public RsaPssSha256()
{
super(AlgorithmIdentifiers.RSA_PSS_USING_SHA256, "SHA256withRSAandMGF1");
MGF1ParameterSpec mgf1pec = MGF1ParameterSpec.SHA256;
PSSParameterSpec pssSpec = new PSSParameterSpec(mgf1pec.getDigestAlgorithm(), MGF1, mgf1pec, 32, TRAILER);
setAlgorithmParameterSpec(pssSpec);
}
}
public static class RsaPssSha384 extends RsaUsingShaAlgorithm
{
public RsaPssSha384()
{
super(AlgorithmIdentifiers.RSA_PSS_USING_SHA384, "SHA384withRSAandMGF1");
MGF1ParameterSpec mgf1pec = MGF1ParameterSpec.SHA384;
PSSParameterSpec pssSpec = new PSSParameterSpec(mgf1pec.getDigestAlgorithm(), MGF1, mgf1pec, 48, TRAILER);
setAlgorithmParameterSpec(pssSpec);
}
}
public static class RsaPssSha512 extends RsaUsingShaAlgorithm
{
public RsaPssSha512()
{
super(AlgorithmIdentifiers.RSA_PSS_USING_SHA512, "SHA512withRSAandMGF1");
MGF1ParameterSpec mgf1pec = MGF1ParameterSpec.SHA512;
PSSParameterSpec pssSpec = new PSSParameterSpec(mgf1pec.getDigestAlgorithm(), MGF1, mgf1pec, 64, TRAILER);
setAlgorithmParameterSpec(pssSpec);
}
}
public static class RsaSha256 extends RsaUsingShaAlgorithm
{
public RsaSha256()
{
super(AlgorithmIdentifiers.RSA_USING_SHA256, "SHA256withRSA");
}
}
public static class RsaSha384 extends RsaUsingShaAlgorithm
{
public RsaSha384()
{
super(AlgorithmIdentifiers.RSA_USING_SHA384, "SHA384withRSA");
}
}
public static class RsaSha512 extends RsaUsingShaAlgorithm
{
public RsaSha512()
{
super(AlgorithmIdentifiers.RSA_USING_SHA512, "SHA512withRSA");
}
}
}