1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.verity; 18 19 import java.security.PrivateKey; 20 21 public class VeritySigner { 22 23 // USAGE: 24 // VeritySigner <contentfile> <key.pem> <sigfile> 25 // To verify that this has correct output: 26 // openssl rsautl -raw -inkey <key.pem> -encrypt -in <sigfile> > /tmp/dump main(String[] args)27 public static void main(String[] args) throws Exception { 28 byte[] content = Utils.read(args[0]); 29 PrivateKey privateKey = Utils.loadPEMPrivateKey(Utils.read(args[1])); 30 byte[] signature = Utils.sign(privateKey, content); 31 Utils.write(signature, args[2]); 32 } 33 } 34