org.jose4j.jwe.CipherUtil Maven / Gradle / Ivy
/*
* Copyright 2012-2017 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.jwe;
import org.jose4j.lang.JoseException;
import javax.crypto.Cipher;
import javax.crypto.NoSuchPaddingException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
/**
*/
public class CipherUtil
{
// static Cipher getCipher(String algorithm) throws JoseException
// {
// return getCipher(algorithm, null);
// }
static Cipher getCipher(String algorithm, String provider) throws JoseException
{
try
{
return provider == null ? Cipher.getInstance(algorithm) : Cipher.getInstance(algorithm, provider);
}
catch (NoSuchAlgorithmException | NoSuchPaddingException e)
{
throw new JoseException(e.toString() , e);
}
catch (NoSuchProviderException e)
{
throw new JoseException("Unable to get a Cipher implementation of " + algorithm + " using provider " + provider, e);
}
}
}