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iText kernel.jar Source Code
kernel.jar is a component in iText Java library to provide low-level functionalities. iText Java library allows you to generate and manage PDF documents.
The Source Code files are provided together with the JAR file in the binary packge like iText7-Core-7.1.4.zip. You can download it at iText 7 Core Download site.
You can compile it to generate your JAR file, using kernel.pom as the build configuration file.
The source code of kernel-7.1.4.jar is provided below:
✍: FYIcenter.com
⏎ com/itextpdf/kernel/crypto/OutputStreamStandardEncryption.java
/* This file is part of the iText (R) project. Copyright (c) 1998-2018 iText Group NV Authors: Bruno Lowagie, Paulo Soares, et al. This program is free software; you can redistribute it and/or modify it under the terms of the GNU Affero General Public License version 3 as published by the Free Software Foundation with the addition of the following permission added to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS This program 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 Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program; if not, see http://www.gnu.org/licenses or write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA, 02110-1301 USA, or download the license from the following URL: http://itextpdf.com/terms-of-use/ The interactive user interfaces in modified source and object code versions of this program must display Appropriate Legal Notices, as required under Section 5 of the GNU Affero General Public License. In accordance with Section 7(b) of the GNU Affero General Public License, a covered work must retain the producer line in every PDF that is created or manipulated using iText. You can be released from the requirements of the license by purchasing a commercial license. Buying such a license is mandatory as soon as you develop commercial activities involving the iText software without disclosing the source code of your own applications. These activities include: offering paid services to customers as an ASP, serving PDFs on the fly in a web application, shipping iText with a closed source product. For more information, please contact iText Software Corp. at this address: sales@itextpdf.com */ package com.itextpdf.kernel.crypto; import java.io.IOException; public class OutputStreamStandardEncryption extends OutputStreamEncryption { protected ARCFOUREncryption arcfour; /** * Creates a new instance of OutputStreamStandardEncryption */ public OutputStreamStandardEncryption(java.io.OutputStream out, byte[] key, int off, int len) { super(out); arcfour = new ARCFOUREncryption(); arcfour.prepareARCFOURKey(key, off, len); } public OutputStreamStandardEncryption(java.io.OutputStream out, byte[] key) { this(out, key, 0, key.length); } /** * Writes {@code len} bytes from the specified byte array * starting at offset {@code off} to this output stream. * The general contract for {@code write(b, off, len)} is that * some of the bytes in the array {@code b} are written to the * output stream in order; element {@code b[off]} is the first * byte written and {@code b[off+len-1]} is the last byte written * by this operation. * <p> * The {@code write} method of {@code OutputStream} calls * the write method of one argument on each of the bytes to be * written out. Subclasses are encouraged to override this method and * provide a more efficient implementation. * <p> * If {@code b} is {@code null}, a * {@code NullPointerException} is thrown. * <p> * If {@code off} is negative, or {@code len} is negative, or * {@code off+len} is greater than the length of the array * {@code b}, then an <tt>IndexOutOfBoundsException</tt> is thrown. * * @param b the data. * @param off the start offset in the data. * @param len the number of bytes to write. * @throws IOException if an I/O error occurs. In particular, * an {@code IOException} is thrown if the output * stream is closed. */ public void write(byte[] b, int off, int len) throws IOException { byte[] b2 = new byte[Math.min(len, 4192)]; while (len > 0) { int sz = Math.min(len, b2.length); arcfour.encryptARCFOUR(b, off, sz, b2, 0); out.write(b2, 0, sz); len -= sz; off += sz; } } public void finish() { } }
⏎ com/itextpdf/kernel/crypto/OutputStreamStandardEncryption.java
Or download all of them as a single archive file:
File name: kernel-7.1.4-sources.jar File size: 1201221 bytes Release date: 2018-10-09 Download
⇐ Download and Install iText7-Core-7.1.4.zip
2010-02-18, 85827👍, 0💬
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