KeyStoreManager.java
/*
* Copyright (c) 2021, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* 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.apache.synapse.util.xpath;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.security.Key;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.PrivateKey;
import java.security.UnrecoverableKeyException;
import java.security.cert.Certificate;
import java.security.cert.CertificateException;
/*
This is a util class for managing keystore
*/
public class KeyStoreManager {
private static final Log log = LogFactory.getLog(EncryptFunction.class);
/**
* Returns the keystore of the given file path
*
* @param keyStoreFilePath the keystore file path
* @param keyStorePassword the keystore password
* @param keyStoreType the keystore type
* @return KeyStore
* @throws KeyStoreException On error while creating keystore
*/
public static KeyStore getKeyStore(String keyStoreFilePath, String keyStorePassword, String keyStoreType)
throws KeyStoreException {
String file = new File(keyStoreFilePath).getAbsolutePath();
try (FileInputStream keyStoreFileInputStream = new FileInputStream(file)) {
KeyStore keyStore = KeyStore.getInstance(keyStoreType);
keyStore.load(keyStoreFileInputStream, keyStorePassword.toCharArray());
return keyStore;
} catch (IOException | NoSuchAlgorithmException | CertificateException e) {
String errorMessage = String.format("Keystore file does not exist in the path as configured " +
"in '%s' property.", keyStoreFilePath);
throw new KeyStoreException(errorMessage);
}
}
/**
* Returns the Certificate of the given alias
*
* @param keyStore the keystore
* @param keyAlias the alias
* @return Certificate
* @throws KeyStoreException On error while get the certificate
*/
public static Certificate getCertificateFromStore(KeyStore keyStore, String keyAlias) throws KeyStoreException {
return keyStore.getCertificate(keyAlias);
}
/**
* Returns the private key of the given alias
*
* @param keyStore the keystore
* @param keyPassword the keystore password
* @param keyAlias the alias
* @return PrivateKey
* @throws UnrecoverableKeyException,NoSuchAlgorithmException,KeyStoreException On error while get private key
*/
public static PrivateKey getPrivateKeyFromKeyStore(KeyStore keyStore, String keyPassword, String keyAlias)
throws UnrecoverableKeyException, NoSuchAlgorithmException, KeyStoreException {
Key key = keyStore.getKey(keyAlias, keyPassword.toCharArray());
return (key instanceof PrivateKey) ? (PrivateKey) key : null;
}
}