diff options
Diffstat (limited to 'Emby.Server.Implementations/IO/SharpCifs/Util/DES.cs')
| -rw-r--r-- | Emby.Server.Implementations/IO/SharpCifs/Util/DES.cs | 568 |
1 files changed, 568 insertions, 0 deletions
diff --git a/Emby.Server.Implementations/IO/SharpCifs/Util/DES.cs b/Emby.Server.Implementations/IO/SharpCifs/Util/DES.cs new file mode 100644 index 000000000..c23b14cf8 --- /dev/null +++ b/Emby.Server.Implementations/IO/SharpCifs/Util/DES.cs @@ -0,0 +1,568 @@ +// This code is derived from jcifs smb client library <jcifs at samba dot org> +// Ported by J. Arturo <webmaster at komodosoft dot net> +// +// This library is free software; you can redistribute it and/or +// modify it under the terms of the GNU Lesser General Public +// License as published by the Free Software Foundation; either +// version 2.1 of the License, or (at your option) 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 +// Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public +// License along with this library; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +using System; + +namespace SharpCifs.Util +{ + /// <summary> + /// This code is derived from the above source + /// JCIFS API + /// Norbert Hranitzky + /// <p>and modified again by Michael B. + /// </summary> + /// <remarks> + /// This code is derived from the above source + /// JCIFS API + /// Norbert Hranitzky + /// <p>and modified again by Michael B. Allen + /// </remarks> + public class DES + { + private int[] _encryptKeys = new int[32]; + + private int[] _decryptKeys = new int[32]; + + private int[] _tempInts = new int[2]; + + public DES() + { + } + + public DES(byte[] key) + { + // DesCipher - the DES encryption method + // + // The meat of this code is by Dave Zimmerman <dzimm@widget.com>, and is: + // + // Copyright (c) 1996 Widget Workshop, Inc. All Rights Reserved. + // + // Permission to use, copy, modify, and distribute this software + // and its documentation for NON-COMMERCIAL or COMMERCIAL purposes and + // without fee is hereby granted, provided that this copyright notice is kept + // intact. + // + // WIDGET WORKSHOP MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY + // OF THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED + // TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A + // PARTICULAR PURPOSE, OR NON-INFRINGEMENT. WIDGET WORKSHOP SHALL NOT BE LIABLE + // FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR + // DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. + // + // THIS SOFTWARE IS NOT DESIGNED OR INTENDED FOR USE OR RESALE AS ON-LINE + // CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING FAIL-SAFE + // PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES, AIRCRAFT + // NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT LIFE + // SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE + // SOFTWARE COULD LEAD DIRECTLY TO DEATH, PERSONAL INJURY, OR SEVERE + // PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH RISK ACTIVITIES"). WIDGET WORKSHOP + // SPECIFICALLY DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR + // HIGH RISK ACTIVITIES. + // + // + // The rest is: + // + // Copyright (C) 1996 by Jef Poskanzer <jef@acme.com>. All rights reserved. + // + // Copyright (C) 1996 by Wolfgang Platzer + // email: wplatzer@iaik.tu-graz.ac.at + // + // All rights reserved. + // + // Redistribution and use in source and binary forms, with or without + // modification, are permitted provided that the following conditions + // are met: + // 1. Redistributions of source code must retain the above copyright + // notice, this list of conditions and the following disclaimer. + // 2. Redistributions in binary form must reproduce the above copyright + // notice, this list of conditions and the following disclaimer in the + // documentation and/or other materials provided with the distribution. + // + // THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + // ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + // OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + // HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + // OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + // SUCH DAMAGE. + // + // Constructor, byte-array key. + if (key.Length == 7) + { + byte[] key8 = new byte[8]; + MakeSmbKey(key, key8); + SetKey(key8); + } + else + { + SetKey(key); + } + } + + public static void MakeSmbKey(byte[] key7, byte[] key8) + { + int i; + key8[0] = unchecked((byte)((key7[0] >> 1) & unchecked(0xff))); + key8[1] = unchecked((byte)((((key7[0] & unchecked(0x01)) << 6) | (((key7[1 + ] & unchecked(0xff)) >> 2) & unchecked(0xff))) & unchecked(0xff))); + key8[2] = unchecked((byte)((((key7[1] & unchecked(0x03)) << 5) | (((key7[2 + ] & unchecked(0xff)) >> 3) & unchecked(0xff))) & unchecked(0xff))); + key8[3] = unchecked((byte)((((key7[2] & unchecked(0x07)) << 4) | (((key7[3 + ] & unchecked(0xff)) >> 4) & unchecked(0xff))) & unchecked(0xff))); + key8[4] = unchecked((byte)((((key7[3] & unchecked(0x0F)) << 3) | (((key7[4 + ] & unchecked(0xff)) >> 5) & unchecked(0xff))) & unchecked(0xff))); + key8[5] = unchecked((byte)((((key7[4] & unchecked(0x1F)) << 2) | (((key7[5 + ] & unchecked(0xff)) >> 6) & unchecked(0xff))) & unchecked(0xff))); + key8[6] = unchecked((byte)((((key7[5] & unchecked(0x3F)) << 1) | (((key7[6 + ] & unchecked(0xff)) >> 7) & unchecked(0xff))) & unchecked(0xff))); + key8[7] = unchecked((byte)(key7[6] & unchecked(0x7F))); + for (i = 0; i < 8; i++) + { + key8[i] = unchecked((byte)(key8[i] << 1)); + } + } + + /// Set the key. + public virtual void SetKey(byte[] key) + { + // CHECK PAROTY TBD + Deskey(key, true, _encryptKeys); + Deskey(key, false, _decryptKeys); + } + + // Turn an 8-byte key into internal keys. + private void Deskey(byte[] keyBlock, bool encrypting, int[] knL) + { + int i; + int j; + int l; + int m; + int n; + int[] pc1M = new int[56]; + int[] pcr = new int[56]; + int[] kn = new int[32]; + for (j = 0; j < 56; ++j) + { + l = _pc1[j]; + m = l & 0x7; + pc1M[j] = ((keyBlock[(int)(((uint)l) >> 3)] & _bytebit[m]) != 0) ? 1 : 0; + } + for (i = 0; i < 16; ++i) + { + if (encrypting) + { + m = i << 1; + } + else + { + m = (15 - i) << 1; + } + n = m + 1; + kn[m] = kn[n] = 0; + for (j = 0; j < 28; ++j) + { + l = j + _totrot[i]; + if (l < 28) + { + pcr[j] = pc1M[l]; + } + else + { + pcr[j] = pc1M[l - 28]; + } + } + for (j = 28; j < 56; ++j) + { + l = j + _totrot[i]; + if (l < 56) + { + pcr[j] = pc1M[l]; + } + else + { + pcr[j] = pc1M[l - 28]; + } + } + for (j = 0; j < 24; ++j) + { + if (pcr[_pc2[j]] != 0) + { + kn[m] |= _bigbyte[j]; + } + if (pcr[_pc2[j + 24]] != 0) + { + kn[n] |= _bigbyte[j]; + } + } + } + Cookey(kn, knL); + } + + private void Cookey(int[] raw, int[] knL) + { + int raw0; + int raw1; + int rawi; + int knLi; + int i; + for (i = 0, rawi = 0, knLi = 0; i < 16; ++i) + { + raw0 = raw[rawi++]; + raw1 = raw[rawi++]; + knL[knLi] = (raw0 & unchecked(0x00fc0000)) << 6; + knL[knLi] |= (raw0 & unchecked(0x00000fc0)) << 10; + knL[knLi] |= (int)(((uint)(raw1 & unchecked(0x00fc0000))) >> 10); + knL[knLi] |= (int)(((uint)(raw1 & unchecked(0x00000fc0))) >> 6); + ++knLi; + knL[knLi] = (raw0 & unchecked(0x0003f000)) << 12; + knL[knLi] |= (raw0 & unchecked(0x0000003f)) << 16; + knL[knLi] |= (int)(((uint)(raw1 & unchecked(0x0003f000))) >> 4); + knL[knLi] |= (raw1 & unchecked(0x0000003f)); + ++knLi; + } + } + + /// Encrypt a block of eight bytes. + private void Encrypt(byte[] clearText, int clearOff, byte[] cipherText, int cipherOff + ) + { + SquashBytesToInts(clearText, clearOff, _tempInts, 0, 2); + Des(_tempInts, _tempInts, _encryptKeys); + SpreadIntsToBytes(_tempInts, 0, cipherText, cipherOff, 2); + } + + /// Decrypt a block of eight bytes. + private void Decrypt(byte[] cipherText, int cipherOff, byte[] clearText, int clearOff + ) + { + SquashBytesToInts(cipherText, cipherOff, _tempInts, 0, 2); + Des(_tempInts, _tempInts, _decryptKeys); + SpreadIntsToBytes(_tempInts, 0, clearText, clearOff, 2); + } + + // The DES function. + private void Des(int[] inInts, int[] outInts, int[] keys) + { + int fval; + int work; + int right; + int leftt; + int round; + int keysi = 0; + leftt = inInts[0]; + right = inInts[1]; + work = (((int)(((uint)leftt) >> 4)) ^ right) & unchecked(0x0f0f0f0f); + right ^= work; + leftt ^= (work << 4); + work = (((int)(((uint)leftt) >> 16)) ^ right) & unchecked(0x0000ffff); + right ^= work; + leftt ^= (work << 16); + work = (((int)(((uint)right) >> 2)) ^ leftt) & unchecked(0x33333333); + leftt ^= work; + right ^= (work << 2); + work = (((int)(((uint)right) >> 8)) ^ leftt) & unchecked(0x00ff00ff); + leftt ^= work; + right ^= (work << 8); + right = (right << 1) | (((int)(((uint)right) >> 31)) & 1); + work = (leftt ^ right) & unchecked((int)(0xaaaaaaaa)); + leftt ^= work; + right ^= work; + leftt = (leftt << 1) | (((int)(((uint)leftt) >> 31)) & 1); + for (round = 0; round < 8; ++round) + { + work = (right << 28) | ((int)(((uint)right) >> 4)); + work ^= keys[keysi++]; + fval = _sp7[work & unchecked(0x0000003f)]; + fval |= _sp5[((int)(((uint)work) >> 8)) & unchecked(0x0000003f)]; + fval |= _sp3[((int)(((uint)work) >> 16)) & unchecked(0x0000003f)]; + fval |= _sp1[((int)(((uint)work) >> 24)) & unchecked(0x0000003f)]; + work = right ^ keys[keysi++]; + fval |= _sp8[work & unchecked(0x0000003f)]; + fval |= _sp6[((int)(((uint)work) >> 8)) & unchecked(0x0000003f)]; + fval |= _sp4[((int)(((uint)work) >> 16)) & unchecked(0x0000003f)]; + fval |= _sp2[((int)(((uint)work) >> 24)) & unchecked(0x0000003f)]; + leftt ^= fval; + work = (leftt << 28) | ((int)(((uint)leftt) >> 4)); + work ^= keys[keysi++]; + fval = _sp7[work & unchecked(0x0000003f)]; + fval |= _sp5[((int)(((uint)work) >> 8)) & unchecked(0x0000003f)]; + fval |= _sp3[((int)(((uint)work) >> 16)) & unchecked(0x0000003f)]; + fval |= _sp1[((int)(((uint)work) >> 24)) & unchecked(0x0000003f)]; + work = leftt ^ keys[keysi++]; + fval |= _sp8[work & unchecked(0x0000003f)]; + fval |= _sp6[((int)(((uint)work) >> 8)) & unchecked(0x0000003f)]; + fval |= _sp4[((int)(((uint)work) >> 16)) & unchecked(0x0000003f)]; + fval |= _sp2[((int)(((uint)work) >> 24)) & unchecked(0x0000003f)]; + right ^= fval; + } + right = (right << 31) | ((int)(((uint)right) >> 1)); + work = (leftt ^ right) & unchecked((int)(0xaaaaaaaa)); + leftt ^= work; + right ^= work; + leftt = (leftt << 31) | ((int)(((uint)leftt) >> 1)); + work = (((int)(((uint)leftt) >> 8)) ^ right) & unchecked(0x00ff00ff); + right ^= work; + leftt ^= (work << 8); + work = (((int)(((uint)leftt) >> 2)) ^ right) & unchecked(0x33333333); + right ^= work; + leftt ^= (work << 2); + work = (((int)(((uint)right) >> 16)) ^ leftt) & unchecked(0x0000ffff); + leftt ^= work; + right ^= (work << 16); + work = (((int)(((uint)right) >> 4)) ^ leftt) & unchecked(0x0f0f0f0f); + leftt ^= work; + right ^= (work << 4); + outInts[0] = right; + outInts[1] = leftt; + } + + /// Encrypt a block of bytes. + public virtual void Encrypt(byte[] clearText, byte[] cipherText) + { + Encrypt(clearText, 0, cipherText, 0); + } + + /// Decrypt a block of bytes. + public virtual void Decrypt(byte[] cipherText, byte[] clearText) + { + Decrypt(cipherText, 0, clearText, 0); + } + + /// <summary>encrypts an array where the length must be a multiple of 8</summary> + public virtual byte[] Encrypt(byte[] clearText) + { + int length = clearText.Length; + if (length % 8 != 0) + { + Console.Out.WriteLine("Array must be a multiple of 8"); + return null; + } + byte[] cipherText = new byte[length]; + int count = length / 8; + for (int i = 0; i < count; i++) + { + Encrypt(clearText, i * 8, cipherText, i * 8); + } + return cipherText; + } + + /// <summary>decrypts an array where the length must be a multiple of 8</summary> + public virtual byte[] Decrypt(byte[] cipherText) + { + int length = cipherText.Length; + if (length % 8 != 0) + { + Console.Out.WriteLine("Array must be a multiple of 8"); + return null; + } + byte[] clearText = new byte[length]; + int count = length / 8; + for (int i = 0; i < count; i++) + { + Encrypt(cipherText, i * 8, clearText, i * 8); + } + return clearText; + } + + private static byte[] _bytebit = { unchecked(unchecked(0x80)), unchecked(unchecked(0x40)), unchecked(unchecked(0x20)), unchecked(unchecked(0x10)), unchecked(unchecked(0x08)), unchecked(unchecked(0x04)), unchecked(unchecked(0x02)), unchecked(unchecked(0x01)) }; + + private static int[] _bigbyte = { unchecked(0x800000), unchecked( + 0x400000), unchecked(0x200000), unchecked(0x100000), unchecked( + 0x080000), unchecked(0x040000), unchecked(0x020000), unchecked( + 0x010000), unchecked(0x008000), unchecked(0x004000), unchecked( + 0x002000), unchecked(0x001000), unchecked(0x000800), unchecked( + 0x000400), unchecked(0x000200), unchecked(0x000100), unchecked( + 0x000080), unchecked(0x000040), unchecked(0x000020), unchecked( + 0x000010), unchecked(0x000008), unchecked(0x000004), unchecked( + 0x000002), unchecked(0x000001) }; + + private static byte[] _pc1 = { unchecked(56), unchecked(48) + , unchecked(40), unchecked(32), unchecked(24), unchecked(16), unchecked(8), unchecked(0), unchecked(57), unchecked(49), unchecked(41), unchecked(33), unchecked(25), unchecked(17), unchecked(9), unchecked(1), unchecked(58), unchecked( + 50), unchecked(42), unchecked(34), unchecked(26), unchecked( + 18), unchecked(10), unchecked(2), unchecked(59), unchecked( + 51), unchecked(43), unchecked(35), unchecked(62), unchecked( + 54), unchecked(46), unchecked(38), unchecked(30), unchecked( + 22), unchecked(14), unchecked(6), unchecked(61), unchecked( + 53), unchecked(45), unchecked(37), unchecked(29), unchecked( + 21), unchecked(13), unchecked(5), unchecked(60), unchecked( + 52), unchecked(44), unchecked(36), unchecked(28), unchecked( + 20), unchecked(12), unchecked(4), unchecked(27), unchecked( + 19), unchecked(11), unchecked(3) }; + + private static int[] _totrot = { 1, 2, 4, 6, 8, 10, 12, 14, 15, 17, 19, + 21, 23, 25, 27, 28 }; + + private static byte[] _pc2 = { unchecked(13), unchecked(16) + , unchecked(10), unchecked(23), unchecked(0), unchecked(4), unchecked(2), unchecked(27), unchecked(14), unchecked(5), unchecked(20), unchecked(9), unchecked(22), unchecked(18), unchecked(11), unchecked(3), unchecked(25), unchecked(7), unchecked(15), unchecked(6), unchecked(26), unchecked(19), unchecked(12), unchecked(1), unchecked(40), unchecked(51), unchecked(30), unchecked(36), unchecked(46), unchecked(54), unchecked(29), unchecked(39), unchecked(50), unchecked( + 44), unchecked(32), unchecked(47), unchecked(43), unchecked( + 48), unchecked(38), unchecked(55), unchecked(33), unchecked( + 52), unchecked(45), unchecked(41), unchecked(49), unchecked( + 35), unchecked(28), unchecked(31) }; + + private static int[] _sp1 = { unchecked(0x01010400), unchecked(0x00000000), unchecked(0x00010000), unchecked(0x01010404), unchecked( + 0x01010004), unchecked(0x00010404), unchecked(0x00000004), + unchecked(0x00010000), unchecked(0x00000400), unchecked(0x01010400), unchecked(0x01010404), unchecked(0x00000400), unchecked(0x01000404), unchecked(0x01010004), unchecked(0x01000000), unchecked( + 0x00000004), unchecked(0x00000404), unchecked(0x01000400), + unchecked(0x01000400), unchecked(0x00010400), unchecked(0x00010400), unchecked(0x01010000), unchecked(0x01010000), unchecked(0x01000404), unchecked(0x00010004), unchecked(0x01000004), unchecked( + 0x01000004), unchecked(0x00010004), unchecked(0x00000000), + unchecked(0x00000404), unchecked(0x00010404), unchecked(0x01000000), unchecked(0x00010000), unchecked(0x01010404), unchecked(0x00000004), unchecked(0x01010000), unchecked(0x01010400), unchecked( + 0x01000000), unchecked(0x01000000), unchecked(0x00000400), + unchecked(0x01010004), unchecked(0x00010000), unchecked(0x00010400), unchecked(0x01000004), unchecked(0x00000400), unchecked(0x00000004), unchecked(0x01000404), unchecked(0x00010404), unchecked( + 0x01010404), unchecked(0x00010004), unchecked(0x01010000), + unchecked(0x01000404), unchecked(0x01000004), unchecked(0x00000404), unchecked(0x00010404), unchecked(0x01010400), unchecked(0x00000404), unchecked(0x01000400), unchecked(0x01000400), unchecked( + 0x00000000), unchecked(0x00010004), unchecked(0x00010400), + unchecked(0x00000000), unchecked(0x01010004) }; + + private static int[] _sp2 = { unchecked((int)(0x80108020)), unchecked((int + )(0x80008000)), unchecked(0x00008000), unchecked(0x00108020), unchecked( + 0x00100000), unchecked(0x00000020), unchecked((int)(0x80100020)), + unchecked((int)(0x80008020)), unchecked((int)(0x80000020)), unchecked((int)(0x80108020 + )), unchecked((int)(0x80108000)), unchecked((int)(0x80000000)), unchecked((int)( + 0x80008000)), unchecked(0x00100000), unchecked(0x00000020), unchecked( + (int)(0x80100020)), unchecked(0x00108000), unchecked(0x00100020), + unchecked((int)(0x80008020)), unchecked(0x00000000), unchecked((int)(0x80000000 + )), unchecked(0x00008000), unchecked(0x00108020), unchecked((int)( + 0x80100000)), unchecked(0x00100020), unchecked((int)(0x80000020)), unchecked( + 0x00000000), unchecked(0x00108000), unchecked(0x00008020), + unchecked((int)(0x80108000)), unchecked((int)(0x80100000)), unchecked(0x00008020), unchecked(0x00000000), unchecked(0x00108020), unchecked((int)( + 0x80100020)), unchecked(0x00100000), unchecked((int)(0x80008020)), unchecked( + (int)(0x80100000)), unchecked((int)(0x80108000)), unchecked(0x00008000), + unchecked((int)(0x80100000)), unchecked((int)(0x80008000)), unchecked(0x00000020), unchecked((int)(0x80108020)), unchecked(0x00108020), unchecked(0x00000020), unchecked(0x00008000), unchecked((int)(0x80000000)), unchecked( + 0x00008020), unchecked((int)(0x80108000)), unchecked(0x00100000), + unchecked((int)(0x80000020)), unchecked(0x00100020), unchecked((int)(0x80008020 + )), unchecked((int)(0x80000020)), unchecked(0x00100020), unchecked(0x00108000), unchecked(0x00000000), unchecked((int)(0x80008000)), unchecked( + 0x00008020), unchecked((int)(0x80000000)), unchecked((int)(0x80100020)), + unchecked((int)(0x80108020)), unchecked(0x00108000) }; + + private static int[] _sp3 = { unchecked(0x00000208), unchecked(0x08020200), unchecked(0x00000000), unchecked(0x08020008), unchecked( + 0x08000200), unchecked(0x00000000), unchecked(0x00020208), + unchecked(0x08000200), unchecked(0x00020008), unchecked(0x08000008), unchecked(0x08000008), unchecked(0x00020000), unchecked(0x08020208), unchecked(0x00020008), unchecked(0x08020000), unchecked( + 0x00000208), unchecked(0x08000000), unchecked(0x00000008), + unchecked(0x08020200), unchecked(0x00000200), unchecked(0x00020200), unchecked(0x08020000), unchecked(0x08020008), unchecked(0x00020208), unchecked(0x08000208), unchecked(0x00020200), unchecked( + 0x00020000), unchecked(0x08000208), unchecked(0x00000008), + unchecked(0x08020208), unchecked(0x00000200), unchecked(0x08000000), unchecked(0x08020200), unchecked(0x08000000), unchecked(0x00020008), unchecked(0x00000208), unchecked(0x00020000), unchecked( + 0x08020200), unchecked(0x08000200), unchecked(0x00000000), + unchecked(0x00000200), unchecked(0x00020008), unchecked(0x08020208), unchecked(0x08000200), unchecked(0x08000008), unchecked(0x00000200), unchecked(0x00000000), unchecked(0x08020008), unchecked( + 0x08000208), unchecked(0x00020000), unchecked(0x08000000), + unchecked(0x08020208), unchecked(0x00000008), unchecked(0x00020208), unchecked(0x00020200), unchecked(0x08000008), unchecked(0x08020000), unchecked(0x08000208), unchecked(0x00000208), unchecked( + 0x08020000), unchecked(0x00020208), unchecked(0x00000008), + unchecked(0x08020008), unchecked(0x00020200) }; + + private static int[] _sp4 = { unchecked(0x00802001), unchecked(0x00002081), unchecked(0x00002081), unchecked(0x00000080), unchecked( + 0x00802080), unchecked(0x00800081), unchecked(0x00800001), + unchecked(0x00002001), unchecked(0x00000000), unchecked(0x00802000), unchecked(0x00802000), unchecked(0x00802081), unchecked(0x00000081), unchecked(0x00000000), unchecked(0x00800080), unchecked( + 0x00800001), unchecked(0x00000001), unchecked(0x00002000), + unchecked(0x00800000), unchecked(0x00802001), unchecked(0x00000080), unchecked(0x00800000), unchecked(0x00002001), unchecked(0x00002080), unchecked(0x00800081), unchecked(0x00000001), unchecked( + 0x00002080), unchecked(0x00800080), unchecked(0x00002000), + unchecked(0x00802080), unchecked(0x00802081), unchecked(0x00000081), unchecked(0x00800080), unchecked(0x00800001), unchecked(0x00802000), unchecked(0x00802081), unchecked(0x00000081), unchecked( + 0x00000000), unchecked(0x00000000), unchecked(0x00802000), + unchecked(0x00002080), unchecked(0x00800080), unchecked(0x00800081), unchecked(0x00000001), unchecked(0x00802001), unchecked(0x00002081), unchecked(0x00002081), unchecked(0x00000080), unchecked( + 0x00802081), unchecked(0x00000081), unchecked(0x00000001), + unchecked(0x00002000), unchecked(0x00800001), unchecked(0x00002001), unchecked(0x00802080), unchecked(0x00800081), unchecked(0x00002001), unchecked(0x00002080), unchecked(0x00800000), unchecked( + 0x00802001), unchecked(0x00000080), unchecked(0x00800000), + unchecked(0x00002000), unchecked(0x00802080) }; + + private static int[] _sp5 = { unchecked(0x00000100), unchecked(0x02080100), unchecked(0x02080000), unchecked(0x42000100), unchecked( + 0x00080000), unchecked(0x00000100), unchecked(0x40000000), + unchecked(0x02080000), unchecked(0x40080100), unchecked(0x00080000), unchecked(0x02000100), unchecked(0x40080100), unchecked(0x42000100), unchecked(0x42080000), unchecked(0x00080100), unchecked( + 0x40000000), unchecked(0x02000000), unchecked(0x40080000), + unchecked(0x40080000), unchecked(0x00000000), unchecked(0x40000100), unchecked(0x42080100), unchecked(0x42080100), unchecked(0x02000100), unchecked(0x42080000), unchecked(0x40000100), unchecked( + 0x00000000), unchecked(0x42000000), unchecked(0x02080100), + unchecked(0x02000000), unchecked(0x42000000), unchecked(0x00080100), unchecked(0x00080000), unchecked(0x42000100), unchecked(0x00000100), unchecked(0x02000000), unchecked(0x40000000), unchecked( + 0x02080000), unchecked(0x42000100), unchecked(0x40080100), + unchecked(0x02000100), unchecked(0x40000000), unchecked(0x42080000), unchecked(0x02080100), unchecked(0x40080100), unchecked(0x00000100), unchecked(0x02000000), unchecked(0x42080000), unchecked( + 0x42080100), unchecked(0x00080100), unchecked(0x42000000), + unchecked(0x42080100), unchecked(0x02080000), unchecked(0x00000000), unchecked(0x40080000), unchecked(0x42000000), unchecked(0x00080100), unchecked(0x02000100), unchecked(0x40000100), unchecked( + 0x00080000), unchecked(0x00000000), unchecked(0x40080000), + unchecked(0x02080100), unchecked(0x40000100) }; + + private static int[] _sp6 = { unchecked(0x20000010), unchecked(0x20400000), unchecked(0x00004000), unchecked(0x20404010), unchecked( + 0x20400000), unchecked(0x00000010), unchecked(0x20404010), + unchecked(0x00400000), unchecked(0x20004000), unchecked(0x00404010), unchecked(0x00400000), unchecked(0x20000010), unchecked(0x00400010), unchecked(0x20004000), unchecked(0x20000000), unchecked( + 0x00004010), unchecked(0x00000000), unchecked(0x00400010), + unchecked(0x20004010), unchecked(0x00004000), unchecked(0x00404000), unchecked(0x20004010), unchecked(0x00000010), unchecked(0x20400010), unchecked(0x20400010), unchecked(0x00000000), unchecked( + 0x00404010), unchecked(0x20404000), unchecked(0x00004010), + unchecked(0x00404000), unchecked(0x20404000), unchecked(0x20000000), unchecked(0x20004000), unchecked(0x00000010), unchecked(0x20400010), unchecked(0x00404000), unchecked(0x20404010), unchecked( + 0x00400000), unchecked(0x00004010), unchecked(0x20000010), + unchecked(0x00400000), unchecked(0x20004000), unchecked(0x20000000), unchecked(0x00004010), unchecked(0x20000010), unchecked(0x20404010), unchecked(0x00404000), unchecked(0x20400000), unchecked( + 0x00404010), unchecked(0x20404000), unchecked(0x00000000), + unchecked(0x20400010), unchecked(0x00000010), unchecked(0x00004000), unchecked(0x20400000), unchecked(0x00404010), unchecked(0x00004000), unchecked(0x00400010), unchecked(0x20004010), unchecked( + 0x00000000), unchecked(0x20404000), unchecked(0x20000000), + unchecked(0x00400010), unchecked(0x20004010) }; + + private static int[] _sp7 = { unchecked(0x00200000), unchecked(0x04200002), unchecked(0x04000802), unchecked(0x00000000), unchecked( + 0x00000800), unchecked(0x04000802), unchecked(0x00200802), + unchecked(0x04200800), unchecked(0x04200802), unchecked(0x00200000), unchecked(0x00000000), unchecked(0x04000002), unchecked(0x00000002), unchecked(0x04000000), unchecked(0x04200002), unchecked( + 0x00000802), unchecked(0x04000800), unchecked(0x00200802), + unchecked(0x00200002), unchecked(0x04000800), unchecked(0x04000002), unchecked(0x04200000), unchecked(0x04200800), unchecked(0x00200002), unchecked(0x04200000), unchecked(0x00000800), unchecked( + 0x00000802), unchecked(0x04200802), unchecked(0x00200800), + unchecked(0x00000002), unchecked(0x04000000), unchecked(0x00200800), unchecked(0x04000000), unchecked(0x00200800), unchecked(0x00200000), unchecked(0x04000802), unchecked(0x04000802), unchecked( + 0x04200002), unchecked(0x04200002), unchecked(0x00000002), + unchecked(0x00200002), unchecked(0x04000000), unchecked(0x04000800), unchecked(0x00200000), unchecked(0x04200800), unchecked(0x00000802), unchecked(0x00200802), unchecked(0x04200800), unchecked( + 0x00000802), unchecked(0x04000002), unchecked(0x04200802), + unchecked(0x04200000), unchecked(0x00200800), unchecked(0x00000000), unchecked(0x00000002), unchecked(0x04200802), unchecked(0x00000000), unchecked(0x00200802), unchecked(0x04200000), unchecked( + 0x00000800), unchecked(0x04000002), unchecked(0x04000800), + unchecked(0x00000800), unchecked(0x00200002) }; + + private static int[] _sp8 = { unchecked(0x10001040), unchecked(0x00001000), unchecked(0x00040000), unchecked(0x10041040), unchecked( + 0x10000000), unchecked(0x10001040), unchecked(0x00000040), + unchecked(0x10000000), unchecked(0x00040040), unchecked(0x10040000), unchecked(0x10041040), unchecked(0x00041000), unchecked(0x10041000), unchecked(0x00041040), unchecked(0x00001000), unchecked( + 0x00000040), unchecked(0x10040000), unchecked(0x10000040), + unchecked(0x10001000), unchecked(0x00001040), unchecked(0x00041000), unchecked(0x00040040), unchecked(0x10040040), unchecked(0x10041000), unchecked(0x00001040), unchecked(0x00000000), unchecked( + 0x00000000), unchecked(0x10040040), unchecked(0x10000040), + unchecked(0x10001000), unchecked(0x00041040), unchecked(0x00040000), unchecked(0x00041040), unchecked(0x00040000), unchecked(0x10041000), unchecked(0x00001000), unchecked(0x00000040), unchecked( + 0x10040040), unchecked(0x00001000), unchecked(0x00041040), + unchecked(0x10001000), unchecked(0x00000040), unchecked(0x10000040), unchecked(0x10040000), unchecked(0x10040040), unchecked(0x10000000), unchecked(0x00040000), unchecked(0x10001040), unchecked( + 0x00000000), unchecked(0x10041040), unchecked(0x00040040), + unchecked(0x10000040), unchecked(0x10040000), unchecked(0x10001000), unchecked(0x10001040), unchecked(0x00000000), unchecked(0x10041040), unchecked(0x00041000), unchecked(0x00041000), unchecked( + 0x00001040), unchecked(0x00001040), unchecked(0x00040040), + unchecked(0x10000000), unchecked(0x10041000) }; + + // Tables, permutations, S-boxes, etc. + /// Squash bytes down to ints. + public static void SquashBytesToInts(byte[] inBytes, int inOff, int[] outInts, int + outOff, int intLen) + { + for (int i = 0; i < intLen; ++i) + { + outInts[outOff + i] = ((inBytes[inOff + i * 4] & unchecked(0xff)) << 24) | + ((inBytes[inOff + i * 4 + 1] & unchecked(0xff)) << 16) | ((inBytes[inOff + + i * 4 + 2] & unchecked(0xff)) << 8) | (inBytes[inOff + i * 4 + 3] & unchecked( + 0xff)); + } + } + + /// Spread ints into bytes. + public static void SpreadIntsToBytes(int[] inInts, int inOff, byte[] outBytes, int + outOff, int intLen) + { + for (int i = 0; i < intLen; ++i) + { + outBytes[outOff + i * 4] = unchecked((byte)((int)(((uint)inInts[inOff + i]) >> 24 + ))); + outBytes[outOff + i * 4 + 1] = unchecked((byte)((int)(((uint)inInts[inOff + i]) >> + 16))); + outBytes[outOff + i * 4 + 2] = unchecked((byte)((int)(((uint)inInts[inOff + i]) >> + 8))); + outBytes[outOff + i * 4 + 3] = unchecked((byte)inInts[inOff + i]); + } + } + } +} |