IVGenerator.java

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/*
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 * $Id: IVGenerator.java 3242 2008-04-13 23:00:20Z xlv $
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 *
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 * Copyright 2006 Paulo Soares
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 *
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 * The contents of this file are subject to the Mozilla Public License Version 1.1
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 * (the "License"); you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at http://www.mozilla.org/MPL/
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 *
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 * Software distributed under the License is distributed on an "AS IS" basis,
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 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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 * for the specific language governing rights and limitations under the License.
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 *
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 * The Original Code is 'iText, a free JAVA-PDF library'.
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 *
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 * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
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 * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
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 * All Rights Reserved.
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 * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
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 * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
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 *
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 * Contributor(s): all the names of the contributors are added in the source code
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 * where applicable.
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 *
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 * Alternatively, the contents of this file may be used under the terms of the
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 * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
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 * provisions of LGPL are applicable instead of those above.  If you wish to
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 * allow use of your version of this file only under the terms of the LGPL
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 * License and not to allow others to use your version of this file under
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 * the MPL, indicate your decision by deleting the provisions above and
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 * replace them with the notice and other provisions required by the LGPL.
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 * If you do not delete the provisions above, a recipient may use your version
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 * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
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 *
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 * This library is free software; you can redistribute it and/or modify it
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 * under the terms of the MPL as stated above or under the terms of the GNU
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 * Library General Public License as published by the Free Software Foundation;
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 * either version 2 of the License, or any later version.
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 *
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 * This library is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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 * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
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 * details.
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 *
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 * If you didn't download this code from the following link, you should check if
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 * you aren't using an obsolete version:
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 * http://www.lowagie.com/iText/
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 */
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package com.lowagie.text.pdf.crypto;
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/**
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 * An initialization vector generator for a CBC block encryption. It's a random generator based on ARCFOUR.
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 * @author Paulo Soares (psoares@consiste.pt)
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 */
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public final class IVGenerator {
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    private static ARCFOUREncryption arcfour;
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    static {
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        arcfour = new ARCFOUREncryption();
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        long time = System.currentTimeMillis();
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        long mem = Runtime.getRuntime().freeMemory();
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        String s = time + "+" + mem;
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        arcfour.prepareARCFOURKey(s.getBytes());
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    }
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    /** Creates a new instance of IVGenerator */
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    private IVGenerator() {
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    }
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    /**
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     * Gets a 16 byte random initialization vector.
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     * @return a 16 byte random initialization vector
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     */
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    public static byte[] getIV() {
76 1 1. getIV : mutated return of Object value for com/lowagie/text/pdf/crypto/IVGenerator::getIV to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE
 
        return getIV(16);
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    }
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    /**
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     * Gets a random initialization vector.
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     * @param len the length of the initialization vector
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     * @return a random initialization vector
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     */
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    public static byte[] getIV(int len) {
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        byte[] b = new byte[len];
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        synchronized (arcfour) {
87 1 1. getIV : removed call to com/lowagie/text/pdf/crypto/ARCFOUREncryption::encryptARCFOUR → NO_COVERAGE
 
            arcfour.encryptARCFOUR(b);
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        }
89 1 1. getIV : mutated return of Object value for com/lowagie/text/pdf/crypto/IVGenerator::getIV to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE
 
        return b;
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    }
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}

Mutations

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1.1
Location : getIV
Killed by : none mutated return of Object value for com/lowagie/text/pdf/crypto/IVGenerator::getIV to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE
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1.1
Location : getIV
Killed by : none removed call to com/lowagie/text/pdf/crypto/ARCFOUREncryption::encryptARCFOUR → NO_COVERAGE
89

1.1
Location : getIV
Killed by : none mutated return of Object value for com/lowagie/text/pdf/crypto/IVGenerator::getIV to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE

Active mutators

Tests examined


Report generated by PIT 1.4.2