com.google.cloud.broker.encryption.GenerateDEK Maven / Gradle / Ivy

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/*
 * Copyright 2020 Google LLC
 *
 * 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 com.google.cloud.broker.encryption;

import java.lang.invoke.MethodHandles;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.cloud.broker.encryption.backends.CloudKMSBackend;
import com.google.cloud.broker.settings.AppSettings;

/**
 * Command-line utility that generates a new data encryption key (DEK) and stores it in GCS
 */
public class GenerateDEK {

    private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());

    public static void main(String[] args) {
        String dekUri = null;
        String kekUri = null;
        if (args.length == 0) {
            dekUri = AppSettings.getInstance().getString(AppSettings.ENCRYPTION_DEK_URI);
            kekUri = AppSettings.getInstance().getString(AppSettings.ENCRYPTION_KEK_URI);
        }
        else if (args.length == 2) {
            dekUri = args[0];
            kekUri = args[1];
        }
        else {
            logger.error("Invalid parameters");
            System.exit(1);
        }

        logger.info("Generating DEK...");
        logger.info("Wrapping with KEK `" + kekUri + "`...");
        logger.info("Writing to `" + dekUri + "`...");
        try {
            CloudKMSBackend.generateAndWriteKeyset(dekUri, kekUri);
        } catch (Exception e) {
            logger.error("Failed to generate and write DEK");
            e.printStackTrace(System.err);
            System.exit(1);
        }
        logger.info("Done.");
    }
}