/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* 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.keycloak.common.util;
import org.keycloak.common.constants.GenericConstants;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.security.KeyPair;
import java.security.KeyStore;
import java.security.PrivateKey;
import java.security.PublicKey;
/**
* @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
* @version $Revision: 1 $
*/
public class KeystoreUtil {
static {
BouncyIntegration.init();
}
public enum KeystoreFormat {
JKS,
PKCS12
}
public static KeyStore loadKeyStore(String filename, String password) throws Exception {
KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
InputStream trustStream = (filename.startsWith(GenericConstants.PROTOCOL_CLASSPATH))
?KeystoreUtil.class.getResourceAsStream(filename.replace(GenericConstants.PROTOCOL_CLASSPATH, ""))
:new FileInputStream(new File(filename));
trustStore.load(trustStream, password.toCharArray());
trustStream.close();
return trustStore;
}
public static KeyPair loadKeyPairFromKeystore(String keystoreFile, String storePassword, String keyPassword, String keyAlias, KeystoreFormat format) {
InputStream stream = FindFile.findFile(keystoreFile);
try {
KeyStore keyStore = null;
if (format == KeystoreFormat.JKS) {
keyStore = KeyStore.getInstance(format.toString());
} else {
keyStore = KeyStore.getInstance(format.toString(), "BC");
}
keyStore.load(stream, storePassword.toCharArray());
PrivateKey privateKey = (PrivateKey) keyStore.getKey(keyAlias, keyPassword.toCharArray());
if (privateKey == null) {
throw new RuntimeException("Couldn't load key with alias '" + keyAlias + "' from keystore");
}
PublicKey publicKey = keyStore.getCertificate(keyAlias).getPublicKey();
return new KeyPair(publicKey, privateKey);
} catch (Exception e) {
throw new RuntimeException("Failed to load private key: " + e.getMessage(), e);
}
}
}