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J. Duke319a3b92007-12-01 00:00:00 +00001/*
2 * Copyright 2003 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26package com.sun.jarsigner;
27
28import java.io.IOException;
29import java.security.NoSuchAlgorithmException;
30import java.security.cert.CertificateException;
31
32/**
33 * This class defines a content signing service.
34 * Implementations must be instantiable using a zero-argument constructor.
35 *
36 * @since 1.5
37 * @author Vincent Ryan
38 */
39
40public abstract class ContentSigner {
41
42 /**
43 * Generates a PKCS #7 signed data message.
44 * This method is used when the signature has already been generated.
45 * The signature, the signer's details, and optionally a signature
46 * timestamp and the content that was signed, are all packaged into a
47 * signed data message.
48 *
49 * @param parameters The non-null input parameters.
50 * @param omitContent true if the content should be omitted from the
51 * signed data message. Otherwise the content is included.
52 * @param applyTimestamp true if the signature should be timestamped.
53 * Otherwise timestamping is not performed.
54 * @return A PKCS #7 signed data message.
55 * @throws NoSuchAlgorithmException The exception is thrown if the signature
56 * algorithm is unrecognised.
57 * @throws CertificateException The exception is thrown if an error occurs
58 * while processing the signer's certificate or the TSA's
59 * certificate.
60 * @throws IOException The exception is thrown if an error occurs while
61 * generating the signature timestamp or while generating the signed
62 * data message.
63 * @throws NullPointerException The exception is thrown if parameters is
64 * null.
65 */
66 public abstract byte[] generateSignedData(
67 ContentSignerParameters parameters, boolean omitContent,
68 boolean applyTimestamp)
69 throws NoSuchAlgorithmException, CertificateException, IOException;
70}