/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.cxf.rs.security.oauth2.grants.code;
import org.apache.cxf.common.util.Base64UrlUtility;
import org.apache.cxf.rt.security.crypto.MessageDigestUtils;
public class DigestCodeVerifier implements CodeVerifierTransformer {
public String transformCodeVerifier(String codeVerifier) {
byte[] digest = MessageDigestUtils.createDigest(codeVerifier,
MessageDigestUtils.ALGO_SHA_256);
return Base64UrlUtility.encode(digest);
}
@Override
public String getChallengeMethod() {
return "S256";
}
}