Source Code Cross Referenced for PdfEncryptionSettings.java in  » PDF » pdf-itext » com » lowagie » text » pdf » interfaces » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » PDF » pdf itext » com.lowagie.text.pdf.interfaces 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * $Id: PdfEncryptionSettings.java 2730 2007-04-28 12:52:49Z blowagie $
003:         *
004:         * Copyright 2006 Bruno Lowagie
005:         *
006:         * The contents of this file are subject to the Mozilla Public License Version 1.1
007:         * (the "License"); you may not use this file except in compliance with the License.
008:         * You may obtain a copy of the License at http://www.mozilla.org/MPL/
009:         *
010:         * Software distributed under the License is distributed on an "AS IS" basis,
011:         * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
012:         * for the specific language governing rights and limitations under the License.
013:         *
014:         * The Original Code is 'iText, a free JAVA-PDF library'.
015:         *
016:         * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
017:         * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
018:         * All Rights Reserved.
019:         * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
020:         * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
021:         *
022:         * Contributor(s): all the names of the contributors are added in the source code
023:         * where applicable.
024:         *
025:         * Alternatively, the contents of this file may be used under the terms of the
026:         * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
027:         * provisions of LGPL are applicable instead of those above.  If you wish to
028:         * allow use of your version of this file only under the terms of the LGPL
029:         * License and not to allow others to use your version of this file under
030:         * the MPL, indicate your decision by deleting the provisions above and
031:         * replace them with the notice and other provisions required by the LGPL.
032:         * If you do not delete the provisions above, a recipient may use your version
033:         * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
034:         *
035:         * This library is free software; you can redistribute it and/or modify it
036:         * under the terms of the MPL as stated above or under the terms of the GNU
037:         * Library General Public License as published by the Free Software Foundation;
038:         * either version 2 of the License, or any later version.
039:         *
040:         * This library is distributed in the hope that it will be useful, but WITHOUT
041:         * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
042:         * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
043:         * details.
044:         *
045:         * If you didn't download this code from the following link, you should check if
046:         * you aren't using an obsolete version:
047:         * http://www.lowagie.com/iText/
048:         */
049:
050:        package com.lowagie.text.pdf.interfaces;
051:
052:        import java.security.cert.Certificate;
053:
054:        import com.lowagie.text.DocumentException;
055:
056:        /**
057:         * Encryption settings are described in section 3.5 (more specifically
058:         * section 3.5.2) of the PDF Reference 1.7.
059:         * They are explained in section 3.3.3 of the book 'iText in Action'.
060:         * The values of the different  preferences were originally stored
061:         * in class PdfWriter, but they have been moved to this separate interface
062:         * for reasons of convenience.
063:         */
064:
065:        public interface PdfEncryptionSettings {
066:
067:            /**
068:             * Sets the encryption options for this document. The userPassword and the
069:             * ownerPassword can be null or have zero length. In this case the ownerPassword
070:             * is replaced by a random string. The open permissions for the document can be
071:             * AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations,
072:             * AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting.
073:             * The permissions can be combined by ORing them.
074:             * @param userPassword the user password. Can be null or empty
075:             * @param ownerPassword the owner password. Can be null or empty
076:             * @param permissions the user permissions
077:             * @param encryptionType the type of encryption. It can be one of STANDARD_ENCRYPTION_40, STANDARD_ENCRYPTION_128 or ENCRYPTION_AES128.
078:             * Optionally DO_NOT_ENCRYPT_METADATA can be ored to output the metadata in cleartext
079:             * @throws DocumentException if the document is already open
080:             */
081:            public void setEncryption(byte userPassword[],
082:                    byte ownerPassword[], int permissions, int encryptionType)
083:                    throws DocumentException;
084:
085:            /**
086:             * Sets the certificate encryption options for this document. An array of one or more public certificates
087:             * must be provided together with an array of the same size for the permissions for each certificate.
088:             *  The open permissions for the document can be
089:             *  AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations,
090:             *  AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting.
091:             *  The permissions can be combined by ORing them.
092:             * Optionally DO_NOT_ENCRYPT_METADATA can be ored to output the metadata in cleartext
093:             * @param certs the public certificates to be used for the encryption
094:             * @param permissions the user permissions for each of the certicates
095:             * @param encryptionType the type of encryption. It can be one of STANDARD_ENCRYPTION_40, STANDARD_ENCRYPTION_128 or ENCRYPTION_AES128.
096:             * @throws DocumentException if the document is already open
097:             */
098:            public void setEncryption(Certificate[] certs, int[] permissions,
099:                    int encryptionType) throws DocumentException;
100:        }
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