ARCFOUREncryption.java

/*
 * $Id: ARCFOUREncryption.java 3117 2008-01-31 05:53:22Z xlv $
 *
 * Copyright 2006 Paulo Soares
 *
 * The contents of this file are subject to the Mozilla Public License Version 1.1
 * (the "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the License.
 *
 * The Original Code is 'iText, a free JAVA-PDF library'.
 *
 * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
 * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
 * All Rights Reserved.
 * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
 * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
 *
 * Contributor(s): all the names of the contributors are added in the source code
 * where applicable.
 *
 * Alternatively, the contents of this file may be used under the terms of the
 * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
 * provisions of LGPL are applicable instead of those above.  If you wish to
 * allow use of your version of this file only under the terms of the LGPL
 * License and not to allow others to use your version of this file under
 * the MPL, indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by the LGPL.
 * If you do not delete the provisions above, a recipient may use your version
 * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the MPL as stated above or under the terms of the GNU
 * Library General Public License as published by the Free Software Foundation;
 * either version 2 of the License, or any later version.
 *
 * This library 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 Library general Public License for more
 * details.
 *
 * If you didn't download this code from the following link, you should check if
 * you aren't using an obsolete version:
 * http://www.lowagie.com/iText/
 */
package com.lowagie.text.pdf.crypto;

public class ARCFOUREncryption {
    private byte[] state = new byte[256];
    private int x;
    private int y;

    /** Creates a new instance of ARCFOUREncryption */
    public ARCFOUREncryption() {
    }
    
    public void prepareARCFOURKey(byte[] key) {
        prepareARCFOURKey(key, 0, key.length);
    }

    public void prepareARCFOURKey(byte[] key, int off, int len) {
        int index1 = 0;
        int index2 = 0;
        for (int k = 0; k < 256; ++k)
            state[k] = (byte)k;
        x = 0;
        y = 0;
        byte tmp;
        for (int k = 0; k < 256; ++k) {
            index2 = (key[index1 + off] + state[k] + index2) & 255;
            tmp = state[k];
            state[k] = state[index2];
            state[index2] = tmp;
            index1 = (index1 + 1) % len;
        }
    }

    public void encryptARCFOUR(byte[] dataIn, int off, int len, byte[] dataOut, int offOut) {
        int length = len + off;
        byte tmp;
        for (int k = off; k < length; ++k) {
            x = (x + 1) & 255;
            y = (state[x] + y) & 255;
            tmp = state[x];
            state[x] = state[y];
            state[y] = tmp;
            dataOut[k - off + offOut] = (byte)(dataIn[k] ^ state[(state[x] + state[y]) & 255]);
        }
    }

    public void encryptARCFOUR(byte[] data, int off, int len) {
        encryptARCFOUR(data, off, len, data, off);
    }

    public void encryptARCFOUR(byte[] dataIn, byte[] dataOut) {
        encryptARCFOUR(dataIn, 0, dataIn.length, dataOut, 0);
    }

    public void encryptARCFOUR(byte[] data) {
        encryptARCFOUR(data, 0, data.length, data, 0);
    }   
}














Active mutators

INCREMENTS_MUTATOR
VOID_METHOD_CALL_MUTATOR
RETURN_VALS_MUTATOR
MATH_MUTATOR
NEGATE_CONDITIONALS_MUTATOR
INVERT_NEGS_MUTATOR
CONDITIONALS_BOUNDARY_MUTATOR

Tests examined

Report generated by PIT 1.4.2

1		/*
2		* $Id: ARCFOUREncryption.java 3117 2008-01-31 05:53:22Z xlv $
3		*
4		* Copyright 2006 Paulo Soares
5		*
6		* The contents of this file are subject to the Mozilla Public License Version 1.1
7		* (the "License"); you may not use this file except in compliance with the License.
8		* You may obtain a copy of the License at http://www.mozilla.org/MPL/
9		*
10		* Software distributed under the License is distributed on an "AS IS" basis,
11		* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12		* for the specific language governing rights and limitations under the License.
13		*
14		* The Original Code is 'iText, a free JAVA-PDF library'.
15		*
16		* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
17		* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
18		* All Rights Reserved.
19		* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
20		* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
21		*
22		* Contributor(s): all the names of the contributors are added in the source code
23		* where applicable.
24		*
25		* Alternatively, the contents of this file may be used under the terms of the
26		* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
27		* provisions of LGPL are applicable instead of those above. If you wish to
28		* allow use of your version of this file only under the terms of the LGPL
29		* License and not to allow others to use your version of this file under
30		* the MPL, indicate your decision by deleting the provisions above and
31		* replace them with the notice and other provisions required by the LGPL.
32		* If you do not delete the provisions above, a recipient may use your version
33		* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
34		*
35		* This library is free software; you can redistribute it and/or modify it
36		* under the terms of the MPL as stated above or under the terms of the GNU
37		* Library General Public License as published by the Free Software Foundation;
38		* either version 2 of the License, or any later version.
39		*
40		* This library is distributed in the hope that it will be useful, but WITHOUT
41		* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
42		* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
43		* details.
44		*
45		* If you didn't download this code from the following link, you should check if
46		* you aren't using an obsolete version:
47		* http://www.lowagie.com/iText/
48		*/
49		package com.lowagie.text.pdf.crypto;
50
51		public class ARCFOUREncryption {
52		private byte[] state = new byte[256];
53		private int x;
54		private int y;
55
56		/** Creates a new instance of ARCFOUREncryption */
57		public ARCFOUREncryption() {
58		}
59
60		public void prepareARCFOURKey(byte[] key) {
61	1 1. prepareARCFOURKey : removed call to com/lowagie/text/pdf/crypto/ARCFOUREncryption::prepareARCFOURKey → NO_COVERAGE	prepareARCFOURKey(key, 0, key.length);
62		}
63
64		public void prepareARCFOURKey(byte[] key, int off, int len) {
65		int index1 = 0;
66		int index2 = 0;
67	3 1. prepareARCFOURKey : changed conditional boundary → NO_COVERAGE 2. prepareARCFOURKey : Changed increment from 1 to -1 → NO_COVERAGE 3. prepareARCFOURKey : negated conditional → NO_COVERAGE	for (int k = 0; k < 256; ++k)
68		state[k] = (byte)k;
69		x = 0;
70		y = 0;
71		byte tmp;
72	3 1. prepareARCFOURKey : changed conditional boundary → NO_COVERAGE 2. prepareARCFOURKey : Changed increment from 1 to -1 → NO_COVERAGE 3. prepareARCFOURKey : negated conditional → NO_COVERAGE	for (int k = 0; k < 256; ++k) {
73	4 1. prepareARCFOURKey : Replaced integer addition with subtraction → NO_COVERAGE 2. prepareARCFOURKey : Replaced integer addition with subtraction → NO_COVERAGE 3. prepareARCFOURKey : Replaced integer addition with subtraction → NO_COVERAGE 4. prepareARCFOURKey : Replaced bitwise AND with OR → NO_COVERAGE	index2 = (key[index1 + off] + state[k] + index2) & 255;
74		tmp = state[k];
75		state[k] = state[index2];
76		state[index2] = tmp;
77	2 1. prepareARCFOURKey : Replaced integer addition with subtraction → NO_COVERAGE 2. prepareARCFOURKey : Replaced integer modulus with multiplication → NO_COVERAGE	index1 = (index1 + 1) % len;
78		}
79		}
80
81		public void encryptARCFOUR(byte[] dataIn, int off, int len, byte[] dataOut, int offOut) {
82	1 1. encryptARCFOUR : Replaced integer addition with subtraction → NO_COVERAGE	int length = len + off;
83		byte tmp;
84	3 1. encryptARCFOUR : changed conditional boundary → NO_COVERAGE 2. encryptARCFOUR : Changed increment from 1 to -1 → NO_COVERAGE 3. encryptARCFOUR : negated conditional → NO_COVERAGE	for (int k = off; k < length; ++k) {
85	2 1. encryptARCFOUR : Replaced integer addition with subtraction → NO_COVERAGE 2. encryptARCFOUR : Replaced bitwise AND with OR → NO_COVERAGE	x = (x + 1) & 255;
86	2 1. encryptARCFOUR : Replaced integer addition with subtraction → NO_COVERAGE 2. encryptARCFOUR : Replaced bitwise AND with OR → NO_COVERAGE	y = (state[x] + y) & 255;
87		tmp = state[x];
88		state[x] = state[y];
89		state[y] = tmp;
90	5 1. encryptARCFOUR : Replaced integer subtraction with addition → NO_COVERAGE 2. encryptARCFOUR : Replaced integer addition with subtraction → NO_COVERAGE 3. encryptARCFOUR : Replaced integer addition with subtraction → NO_COVERAGE 4. encryptARCFOUR : Replaced bitwise AND with OR → NO_COVERAGE 5. encryptARCFOUR : Replaced XOR with AND → NO_COVERAGE	dataOut[k - off + offOut] = (byte)(dataIn[k] ^ state[(state[x] + state[y]) & 255]);
91		}
92		}
93
94		public void encryptARCFOUR(byte[] data, int off, int len) {
95		encryptARCFOUR(data, off, len, data, off);
96		}
97
98		public void encryptARCFOUR(byte[] dataIn, byte[] dataOut) {
99	1 1. encryptARCFOUR : removed call to com/lowagie/text/pdf/crypto/ARCFOUREncryption::encryptARCFOUR → NO_COVERAGE	encryptARCFOUR(dataIn, 0, dataIn.length, dataOut, 0);
100		}
101
102		public void encryptARCFOUR(byte[] data) {
103	1 1. encryptARCFOUR : removed call to com/lowagie/text/pdf/crypto/ARCFOUREncryption::encryptARCFOUR → NO_COVERAGE	encryptARCFOUR(data, 0, data.length, data, 0);
104		}
105		}
		Mutations
61		1.1 Location : prepareARCFOURKey Killed by : none removed call to com/lowagie/text/pdf/crypto/ARCFOUREncryption::prepareARCFOURKey → NO_COVERAGE
67		1.1 Location : prepareARCFOURKey Killed by : none changed conditional boundary → NO_COVERAGE 2.2 Location : prepareARCFOURKey Killed by : none Changed increment from 1 to -1 → NO_COVERAGE 3.3 Location : prepareARCFOURKey Killed by : none negated conditional → NO_COVERAGE
72		1.1 Location : prepareARCFOURKey Killed by : none changed conditional boundary → NO_COVERAGE 2.2 Location : prepareARCFOURKey Killed by : none Changed increment from 1 to -1 → NO_COVERAGE 3.3 Location : prepareARCFOURKey Killed by : none negated conditional → NO_COVERAGE
73		1.1 Location : prepareARCFOURKey Killed by : none Replaced integer addition with subtraction → NO_COVERAGE 2.2 Location : prepareARCFOURKey Killed by : none Replaced integer addition with subtraction → NO_COVERAGE 3.3 Location : prepareARCFOURKey Killed by : none Replaced integer addition with subtraction → NO_COVERAGE 4.4 Location : prepareARCFOURKey Killed by : none Replaced bitwise AND with OR → NO_COVERAGE
77		1.1 Location : prepareARCFOURKey Killed by : none Replaced integer addition with subtraction → NO_COVERAGE 2.2 Location : prepareARCFOURKey Killed by : none Replaced integer modulus with multiplication → NO_COVERAGE
82		1.1 Location : encryptARCFOUR Killed by : none Replaced integer addition with subtraction → NO_COVERAGE
84		1.1 Location : encryptARCFOUR Killed by : none changed conditional boundary → NO_COVERAGE 2.2 Location : encryptARCFOUR Killed by : none Changed increment from 1 to -1 → NO_COVERAGE 3.3 Location : encryptARCFOUR Killed by : none negated conditional → NO_COVERAGE
85		1.1 Location : encryptARCFOUR Killed by : none Replaced integer addition with subtraction → NO_COVERAGE 2.2 Location : encryptARCFOUR Killed by : none Replaced bitwise AND with OR → NO_COVERAGE
86		1.1 Location : encryptARCFOUR Killed by : none Replaced integer addition with subtraction → NO_COVERAGE 2.2 Location : encryptARCFOUR Killed by : none Replaced bitwise AND with OR → NO_COVERAGE
90		1.1 Location : encryptARCFOUR Killed by : none Replaced integer subtraction with addition → NO_COVERAGE 2.2 Location : encryptARCFOUR Killed by : none Replaced integer addition with subtraction → NO_COVERAGE 3.3 Location : encryptARCFOUR Killed by : none Replaced integer addition with subtraction → NO_COVERAGE 4.4 Location : encryptARCFOUR Killed by : none Replaced bitwise AND with OR → NO_COVERAGE 5.5 Location : encryptARCFOUR Killed by : none Replaced XOR with AND → NO_COVERAGE
99		1.1 Location : encryptARCFOUR Killed by : none removed call to com/lowagie/text/pdf/crypto/ARCFOUREncryption::encryptARCFOUR → NO_COVERAGE
103		1.1 Location : encryptARCFOUR Killed by : none removed call to com/lowagie/text/pdf/crypto/ARCFOUREncryption::encryptARCFOUR → NO_COVERAGE

ARCFOUREncryption.java

Mutations

Active mutators

Tests examined