org.cloudfoundry.identity.uaa.oauth.jwt.CommonSignatureVerifier Maven / Gradle / Ivy
/*
* ****************************************************************************
* Cloud Foundry
* Copyright (c) [2009-2016] Pivotal Software, Inc. All Rights Reserved.
*
* This product is licensed to you under the Apache License, Version 2.0 (the "License").
* You may not use this product except in compliance with the License.
*
* This product includes a number of subcomponents with
* separate copyright notices and license terms. Your use of these
* subcomponents is subject to the terms and conditions of the
* subcomponent's license, as noted in the LICENSE file.
* ****************************************************************************
*/
package org.cloudfoundry.identity.uaa.oauth.jwt;
import org.springframework.security.jwt.crypto.sign.MacSigner;
import org.springframework.security.jwt.crypto.sign.RsaVerifier;
import org.springframework.security.jwt.crypto.sign.SignatureVerifier;
public class CommonSignatureVerifier implements SignatureVerifier {
private final SignatureVerifier delegate;
public CommonSignatureVerifier(String verificationKey) {
if(verificationKey == null) {
throw new IllegalArgumentException("verificationKey cannot be null");
} else if(isAssymetricKey(verificationKey)) {
delegate = new RsaVerifier(verificationKey);
} else {
delegate = new MacSigner(verificationKey);
}
}
private static boolean isAssymetricKey(String key) {
return key.startsWith("-----BEGIN");
}
@Override
public void verify(byte[] content, byte[] signature) {
delegate.verify(content, signature);
}
@Override
public String algorithm() {
return delegate.algorithm();
}
}