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
17package com.android.verity;
18
19import java.security.PrivateKey;
20
21public 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
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