| /* |
| * Copyright (c) 1996, 2005, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.security.pkcs; |
| |
| import java.io.*; |
| |
| import sun.security.util.*; |
| |
| /** |
| * A ContentInfo type, as defined in PKCS#7. |
| * |
| * @author Benjamin Renaud |
| */ |
| |
| public class ContentInfo { |
| |
| // pkcs7 pre-defined content types |
| private static int[] pkcs7 = {1, 2, 840, 113549, 1, 7}; |
| private static int[] data = {1, 2, 840, 113549, 1, 7, 1}; |
| private static int[] sdata = {1, 2, 840, 113549, 1, 7, 2}; |
| private static int[] edata = {1, 2, 840, 113549, 1, 7, 3}; |
| private static int[] sedata = {1, 2, 840, 113549, 1, 7, 4}; |
| private static int[] ddata = {1, 2, 840, 113549, 1, 7, 5}; |
| private static int[] crdata = {1, 2, 840, 113549, 1, 7, 6}; |
| private static int[] nsdata = {2, 16, 840, 1, 113730, 2, 5}; |
| // timestamp token (id-ct-TSTInfo) from RFC 3161 |
| private static int[] tstInfo = {1, 2, 840, 113549, 1, 9, 16, 1, 4}; |
| // this is for backwards-compatibility with JDK 1.1.x |
| private static final int[] OLD_SDATA = {1, 2, 840, 1113549, 1, 7, 2}; |
| private static final int[] OLD_DATA = {1, 2, 840, 1113549, 1, 7, 1}; |
| public static ObjectIdentifier PKCS7_OID; |
| public static ObjectIdentifier DATA_OID; |
| public static ObjectIdentifier SIGNED_DATA_OID; |
| public static ObjectIdentifier ENVELOPED_DATA_OID; |
| public static ObjectIdentifier SIGNED_AND_ENVELOPED_DATA_OID; |
| public static ObjectIdentifier DIGESTED_DATA_OID; |
| public static ObjectIdentifier ENCRYPTED_DATA_OID; |
| public static ObjectIdentifier OLD_SIGNED_DATA_OID; |
| public static ObjectIdentifier OLD_DATA_OID; |
| public static ObjectIdentifier NETSCAPE_CERT_SEQUENCE_OID; |
| public static ObjectIdentifier TIMESTAMP_TOKEN_INFO_OID; |
| |
| static { |
| PKCS7_OID = ObjectIdentifier.newInternal(pkcs7); |
| DATA_OID = ObjectIdentifier.newInternal(data); |
| SIGNED_DATA_OID = ObjectIdentifier.newInternal(sdata); |
| ENVELOPED_DATA_OID = ObjectIdentifier.newInternal(edata); |
| SIGNED_AND_ENVELOPED_DATA_OID = ObjectIdentifier.newInternal(sedata); |
| DIGESTED_DATA_OID = ObjectIdentifier.newInternal(ddata); |
| ENCRYPTED_DATA_OID = ObjectIdentifier.newInternal(crdata); |
| OLD_SIGNED_DATA_OID = ObjectIdentifier.newInternal(OLD_SDATA); |
| OLD_DATA_OID = ObjectIdentifier.newInternal(OLD_DATA); |
| /** |
| * The ASN.1 systax for the Netscape Certificate Sequence |
| * data type is defined |
| * <a href=http://wp.netscape.com/eng/security/comm4-cert-download.html> |
| * here.</a> |
| */ |
| NETSCAPE_CERT_SEQUENCE_OID = ObjectIdentifier.newInternal(nsdata); |
| TIMESTAMP_TOKEN_INFO_OID = ObjectIdentifier.newInternal(tstInfo); |
| } |
| |
| ObjectIdentifier contentType; |
| DerValue content; // OPTIONAL |
| |
| public ContentInfo(ObjectIdentifier contentType, DerValue content) { |
| this.contentType = contentType; |
| this.content = content; |
| } |
| |
| /** |
| * Make a contentInfo of type data. |
| */ |
| public ContentInfo(byte[] bytes) { |
| DerValue octetString = new DerValue(DerValue.tag_OctetString, bytes); |
| this.contentType = DATA_OID; |
| this.content = octetString; |
| } |
| |
| /** |
| * Parses a PKCS#7 content info. |
| */ |
| public ContentInfo(DerInputStream derin) |
| throws IOException, ParsingException |
| { |
| this(derin, false); |
| } |
| |
| /** |
| * Parses a PKCS#7 content info. |
| * |
| * <p>This constructor is used only for backwards compatibility with |
| * PKCS#7 blocks that were generated using JDK1.1.x. |
| * |
| * @param derin the ASN.1 encoding of the content info. |
| * @param oldStyle flag indicating whether or not the given content info |
| * is encoded according to JDK1.1.x. |
| */ |
| public ContentInfo(DerInputStream derin, boolean oldStyle) |
| throws IOException, ParsingException |
| { |
| DerInputStream disType; |
| DerInputStream disTaggedContent; |
| DerValue type; |
| DerValue taggedContent; |
| DerValue[] typeAndContent; |
| DerValue[] contents; |
| |
| typeAndContent = derin.getSequence(2); |
| |
| // Parse the content type |
| type = typeAndContent[0]; |
| disType = new DerInputStream(type.toByteArray()); |
| contentType = disType.getOID(); |
| |
| if (oldStyle) { |
| // JDK1.1.x-style encoding |
| content = typeAndContent[1]; |
| } else { |
| // This is the correct, standards-compliant encoding. |
| // Parse the content (OPTIONAL field). |
| // Skip the [0] EXPLICIT tag by pretending that the content is the |
| // one and only element in an implicitly tagged set |
| if (typeAndContent.length > 1) { // content is OPTIONAL |
| taggedContent = typeAndContent[1]; |
| disTaggedContent |
| = new DerInputStream(taggedContent.toByteArray()); |
| contents = disTaggedContent.getSet(1, true); |
| content = contents[0]; |
| } |
| } |
| } |
| |
| public DerValue getContent() { |
| return content; |
| } |
| |
| public ObjectIdentifier getContentType() { |
| return contentType; |
| } |
| |
| public byte[] getData() throws IOException { |
| if (contentType.equals(DATA_OID) || |
| contentType.equals(OLD_DATA_OID) || |
| contentType.equals(TIMESTAMP_TOKEN_INFO_OID)) { |
| if (content == null) |
| return null; |
| else |
| return content.getOctetString(); |
| } |
| throw new IOException("content type is not DATA: " + contentType); |
| } |
| |
| public void encode(DerOutputStream out) throws IOException { |
| DerOutputStream contentDerCode; |
| DerOutputStream seq; |
| |
| seq = new DerOutputStream(); |
| seq.putOID(contentType); |
| |
| // content is optional, it could be external |
| if (content != null) { |
| DerValue taggedContent = null; |
| contentDerCode = new DerOutputStream(); |
| content.encode(contentDerCode); |
| |
| // Add the [0] EXPLICIT tag in front of the content encoding |
| taggedContent = new DerValue((byte)0xA0, |
| contentDerCode.toByteArray()); |
| seq.putDerValue(taggedContent); |
| } |
| |
| out.write(DerValue.tag_Sequence, seq); |
| } |
| |
| /** |
| * Returns a byte array representation of the data held in |
| * the content field. |
| */ |
| public byte[] getContentBytes() throws IOException { |
| if (content == null) |
| return null; |
| |
| DerInputStream dis = new DerInputStream(content.toByteArray()); |
| return dis.getOctetString(); |
| } |
| |
| public String toString() { |
| String out = ""; |
| |
| out += "Content Info Sequence\n\tContent type: " + contentType + "\n"; |
| out += "\tContent: " + content; |
| return out; |
| } |
| } |