1<?php
2/*
3 * Copyright 2011 Google Inc.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 *     http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18require_once "Google_P12Signer.php";
19
20/**
21 * Signs data.
22 *
23 * @author Brian Eaton <beaton@google.com>
24 */
25abstract class Google_Signer {
26  /**
27   * Signs data, returns the signature as binary data.
28   */
29  abstract public function sign($data);
30}
31