rendered paste body/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* http://www.gnu.org/copyleft/gpl.html
*/
using System;
namespace Blowfish.Engine
{
/// <summary> This file is based on the Blowfish Engine that is part of
/// the BouncyCastle JCE
///
/// Moddified : only decrypts (no encryption)
///
/// Copyright (c) 2000 The Legion Of The Bouncy Castle (http://www.bouncycastle.org)
/// Permission is hereby granted, free of charge, to any person obtaining a copy of this software
/// and associated documentation files (the "Software"), to deal in the Software without restriction,
/// including without limitation the rights to use, copy, modify, merge, publish, distribute,
/// sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
/// furnished to do so, subject to the following conditions:
///
/// The above copyright notice and this permission notice shall be included in all copies
/// or substantial portions of the Software.
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
/// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
/// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
/// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
/// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
/// </summary>
public class BlowfishCipher
{
virtual public System.String AlgorithmName
{
get
{
return "Blowfish";
}
}
virtual public int BlockSize
{
get
{
return BLOCK_SIZE;
}
}
public sbyte[] Key
{
set
{
/*
* - comments are from _Applied Crypto_, Schneier, p338 please be
* careful comparing the two, AC numbers the arrays from 1, the
* enclosed code from 0.
*
* (1) Initialise the S-boxes and the P-array, with a fixed string This
* string contains the hexadecimal digits of pi (3.141...)
*/
Array.Copy(KS0, 0, S0, 0, SBOX_SK);
Array.Copy(KS1, 0, S1, 0, SBOX_SK);
Array.Copy(KS2, 0, S2, 0, SBOX_SK);
Array.Copy(KS3, 0, S3, 0, SBOX_SK);
Array.Copy(KP, 0, P, 0, P_SZ);
/*
* (2) Now, XOR P[0] with the first 32 bits of the key, XOR P[1] with
* the second 32-bits of the key, and so on for all bits of the key (up
* to P[17]). Repeatedly cycle through the key bits until the entire
* P-array has been XOR-ed with the key bits
*/
int keyLength = value.Length;
int keyIndex = 0;
for (int i = 0; i < P_SZ; i++)
{
// get the 32 bits of the key, in 4 * 8 bit chunks
int data = 0x0000000;
for (int j = 0; j < 4; j++)
{
// create a 32 bit block
data = (data << 8) | (value[keyIndex++] & 0xff);
// wrap when we get to the end of the key
if (keyIndex >= keyLength)
{
keyIndex = 0;
}
}
// XOR the newly created 32 bit chunk onto the P-array
P[i] ^= data;
}
/*
* (3) Encrypt the all-zero string with the Blowfish algorithm, using
* the subkeys described in (1) and (2)
*
* (4) Replace P1 and P2 with the output of step (3)
*
* (5) Encrypt the output of step(3) using the Blowfish algorithm, with
* the modified subkeys.
*
* (6) Replace P3 and P4 with the output of step (5)
*
* (7) Continue the process, replacing all elements of the P-array and
* then all four S-boxes in order, with the output of the continuously
* changing Blowfish algorithm
*/
processTable(0, 0, P);
processTable(P[P_SZ - 2], P[P_SZ - 1], S0);
processTable(S0[SBOX_SK - 2], S0[SBOX_SK - 1], S1);
processTable(S1[SBOX_SK - 2], S1[SBOX_SK - 1], S2);
processTable(S2[SBOX_SK - 2], S2[SBOX_SK - 1], S3);
}
}
//UPGRADE_NOTE: Final was removed from the declaration of 'KP'. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
private static readonly int[] KP = new int[]{0x243F6A88, unchecked((int) 0x85A308D3), 0x13198A2E, 0x03707344, unchecked((int) 0xA4093822), 0x299F31D0, 0x082EFA98, unchecked((int) 0xEC4E6C89), 0x452821E6, 0x38D01377, unchecked((int) 0xBE5466CF), 0x34E90C6C, unchecked((int) 0xC0AC29B7), unchecked((int) 0xC97C50DD), 0x3F84D5B5, unchecked((int) 0xB5470917), unchecked((int) 0x9216D5D9), unchecked((int) 0x8979FB1B)};
//UPGRADE_NOTE: Final was removed from the declaration of 'KS0'. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
private static readonly int[] KS0 = new int[]{unchecked((int) 0xD1310BA6), unchecked((int) 0x98DFB5AC), 0x2FFD72DB, unchecked((int) 0xD01ADFB7), unchecked((int) 0xB8E1AFED), 0x6A267E96, unchecked((int) 0xBA7C9045), unchecked((int) 0xF12C7F99), 0x24A19947, unchecked((int) 0xB3916CF7), 0x0801F2E2, unchecked((int) 0x858EFC16), 0x636920D8, 0x71574E69, unchecked((int) 0xA458FEA3), unchecked((int) 0xF4933D7E), 0x0D95748F, 0x728EB658, 0x718BCD58, unchecked((int) 0x82154AEE), 0x7B54A41D, unchecked((int) 0xC25A59B5), unchecked((int) 0x9C30D539), 0x2AF26013, unchecked((int) 0xC5D1B023), 0x286085F0, unchecked((int) 0xCA417918), unchecked((int) 0xB8DB38EF), unchecked((int) 0x8E79DCB0), 0x603A180E, 0x6C9E0E8B, unchecked((int) 0xB01E8A3E), unchecked((int) 0xD71577C1), unchecked((int) 0xBD314B27), 0x78AF2FDA, 0x55605C60, unchecked((int) 0xE65525F3), unchecked((int) 0xAA55AB94), 0x57489862, 0x63E81440, 0x55CA396A, 0x2AAB10B6, unchecked((int) 0xB4CC5C34), 0x1141E8CE, unchecked((int) 0xA15486AF), 0x7C72E993, unchecked((int) 0xB3EE1411), 0x636FBC2A, 0x2BA9C55D, 0x741831F6, unchecked((int) 0xCE5C3E16), unchecked((int) 0x9B87931E), unchecked((int) 0xAFD6BA33), 0x6C24CF5C, 0x7A325381, 0x28958677, 0x3B8F4898, 0x6B4BB9AF, unchecked((int) 0xC4BFE81B), 0x66282193, 0x61D809CC, unchecked((int) 0xFB21A991), 0x487CAC60, 0x5DEC8032, unchecked((int) 0xEF845D5D), unchecked((int) 0xE98575B1), unchecked((int) 0xDC262302), unchecked((int) 0xEB651B88), 0x23893E81, unchecked((int) 0xD396ACC5), 0x0F6D6FF3, unchecked((int) 0x83F44239), 0x2E0B4482, unchecked((int) 0xA4842004), 0x69C8F04A, unchecked((int) 0x9E1F9B5E), 0x21C66842, unchecked((int) 0xF6E96C9A), 0x670C9C61, unchecked((int) 0xABD388F0), 0x6A51A0D2, unchecked((int) 0xD8542F68), unchecked((int) 0x960FA728), unchecked((int) 0xAB5133A3), 0x6EEF0B6C, 0x137A3BE4, unchecked((int) 0xBA3BF050), 0x7EFB2A98, unchecked((int) 0xA1F1651D), 0x39AF0176, 0x66CA593E, unchecked((int) 0x82430E88), unchecked((int) 0x8CEE8619), 0x456F9FB4, 0x7D84A5C3, 0x3B8B5EBE, unchecked((int) 0xE06F75D8), unchecked(
(int) 0x85C12073), 0x401A449F, 0x56C16AA6, 0x4ED3AA62, 0x363F7706, 0x1BFEDF72, 0x429B023D, 0x37D0D724, unchecked((int) 0xD00A1248), unchecked((int) 0xDB0FEAD3), 0x49F1C09B, 0x075372C9, unchecked((int) 0x80991B7B), 0x25D479D8, unchecked((int) 0xF6E8DEF7), unchecked((int) 0xE3FE501A), unchecked((int) 0xB6794C3B), unchecked((int) 0x976CE0BD), 0x04C006BA, unchecked((int) 0xC1A94FB6), 0x409F60C4, 0x5E5C9EC2, 0x196A2463, 0x68FB6FAF, 0x3E6C53B5, 0x1339B2EB, 0x3B52EC6F, 0x6DFC511F, unchecked((int) 0x9B30952C), unchecked((int) 0xCC814544), unchecked((int) 0xAF5EBD09), unchecked((int) 0xBEE3D004), unchecked((int) 0xDE334AFD), 0x660F2807, 0x192E4BB3, unchecked((int) 0xC0CBA857), 0x45C8740F, unchecked((int) 0xD20B5F39), unchecked((int) 0xB9D3FBDB), 0x5579C0BD, 0x1A60320A, unchecked((int) 0xD6A100C6), 0x402C7279, 0x679F25FE, unchecked((int) 0xFB1FA3CC), unchecked((int) 0x8EA5E9F8), unchecked((int) 0xDB3222F8), 0x3C7516DF, unchecked((int) 0xFD616B15), 0x2F501EC8, unchecked((int) 0xAD0552AB), 0x323DB5FA, unchecked((int) 0xFD238760), 0x53317B48, 0x3E00DF82, unchecked((int) 0x9E5C57BB), unchecked((int) 0xCA6F8CA0), 0x1A87562E, unchecked((int) 0xDF1769DB), unchecked((int) 0xD542A8F6), 0x287EFFC3, unchecked((int) 0xAC6732C6), unchecked((int) 0x8C4F5573), 0x695B27B0, unchecked((int) 0xBBCA58C8), unchecked((int) 0xE1FFA35D), unchecked((int) 0xB8F011A0), 0x10FA3D98, unchecked((int) 0xFD2183B8), 0x4AFCB56C, 0x2DD1D35B, unchecked((int) 0x9A53E479), unchecked((int) 0xB6F84565), unchecked((int) 0xD28E49BC), 0x4BFB9790, unchecked((int) 0xE1DDF2DA), unchecked((int) 0xA4CB7E33), 0x62FB1341, unchecked((int) 0xCEE4C6E8), unchecked((int) 0xEF20CADA), 0x36774C01, unchecked((int) 0xD07E9EFE), 0x2BF11FB4, unchecked((int) 0x95DBDA4D), unchecked((int) 0xAE909198), unchecked((int) 0xEAAD8E71), 0x6B93D5A0, unchecked((int) 0xD08ED1D0), unchecked((int) 0xAFC725E0), unchecked((int) 0x8E3C5B2F), unchecked((int) 0x8E7594B7), unchecked((int) 0x8FF6E2FB), unchecked((int) 0xF2122B64), unchecked((int) 0x8888B812), unchecked((int) 0x900DF01C),
0x4FAD5EA0, 0x688FC31C, unchecked((int) 0xD1CFF191), unchecked((int) 0xB3A8C1AD), 0x2F2F2218, unchecked((int) 0xBE0E1777), unchecked((int) 0xEA752DFE), unchecked((int) 0x8B021FA1), unchecked((int) 0xE5A0CC0F), unchecked((int) 0xB56F74E8), 0x18ACF3D6, unchecked((int) 0xCE89E299), unchecked((int) 0xB4A84FE0), unchecked((int) 0xFD13E0B7), 0x7CC43B81, unchecked((int) 0xD2ADA8D9), 0x165FA266, unchecked((int) 0x80957705), unchecked((int) 0x93CC7314), 0x211A1477, unchecked((int) 0xE6AD2065), 0x77B5FA86, unchecked((int) 0xC75442F5), unchecked((int) 0xFB9D35CF), unchecked((int) 0xEBCDAF0C), 0x7B3E89A0, unchecked((int) 0xD6411BD3), unchecked((int) 0xAE1E7E49), 0x00250E2D, 0x2071B35E, 0x226800BB, 0x57B8E0AF, 0x2464369B, unchecked((int) 0xF009B91E), 0x5563911D, 0x59DFA6AA, 0x78C14389, unchecked((int) 0xD95A537F), 0x207D5BA2, 0x02E5B9C5, unchecked((int) 0x83260376), 0x6295CFA9, 0x11C81968, 0x4E734A41, unchecked((int) 0xB3472DCA), 0x7B14A94A, 0x1B510052, unchecked((int) 0x9A532915), unchecked((int) 0xD60F573F), unchecked((int) 0xBC9BC6E4), 0x2B60A476, unchecked((int) 0x81E67400), 0x08BA6FB5, 0x571BE91F, unchecked((int) 0xF296EC6B), 0x2A0DD915, unchecked((int) 0xB6636521), unchecked((int) 0xE7B9F9B6), unchecked((int) 0xFF34052E), unchecked((int) 0xC5855664), 0x53B02D5D, unchecked((int) 0xA99F8FA1), 0x08BA4799, 0x6E85076A};
//UPGRADE_NOTE: Final was removed from the declaration of 'KS1'. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
private static readonly int[] KS1 = new int[]{0x4B7A70E9, unchecked((int) 0xB5B32944), unchecked((int) 0xDB75092E), unchecked((int) 0xC4192623), unchecked((int) 0xAD6EA6B0), 0x49A7DF7D, unchecked((int) 0x9CEE60B8), unchecked((int) 0x8FEDB266), unchecked((int) 0xECAA8C71), 0x699A17FF, 0x5664526C, unchecked((int) 0xC2B19EE1), 0x193602A5, 0x75094C29, unchecked((int) 0xA0591340), unchecked((int) 0xE4183A3E), 0x3F54989A, 0x5B429D65, 0x6B8FE4D6, unchecked((int) 0x99F73FD6), unchecked((int) 0xA1D29C07), unchecked((int) 0xEFE830F5), 0x4D2D38E6, unchecked((int) 0xF0255DC1), 0x4CDD2086, unchecked((int) 0x8470EB26), 0x6382E9C6, 0x021ECC5E, 0x09686B3F, 0x3EBAEFC9, 0x3C971814, 0x6B6A70A1, 0x687F3584, 0x52A0E286, unchecked((int) 0xB79C5305), unchecked((int) 0xAA500737), 0x3E07841C, 0x7FDEAE5C, unchecked((int) 0x8E7D44EC), 0x5716F2B8, unchecked((int) 0xB03ADA37), unchecked((int) 0xF0500C0D), unchecked((int) 0xF01C1F04), 0x0200B3FF, unchecked((int) 0xAE0CF51A), 0x3CB574B2, 0x25837A58, unchecked((int) 0xDC0921BD), unchecked((int) 0xD19113F9), 0x7CA92FF6, unchecked((int) 0x94324773), 0x22F54701, 0x3AE5E581, 0x37C2DADC, unchecked((int) 0xC8B57634), unchecked((int) 0x9AF3DDA7), unchecked((int) 0xA9446146), 0x0FD0030E, unchecked((int) 0xECC8C73E), unchecked((int) 0xA4751E41), unchecked((int) 0xE238CD99), 0x3BEA0E2F, 0x3280BBA1, 0x183EB331, 0x4E548B38, 0x4F6DB908, 0x6F420D03, unchecked((int) 0xF60A04BF), 0x2CB81290, 0x24977C79, 0x5679B072, unchecked((int) 0xBCAF89AF), unchecked((int) 0xDE9A771F), unchecked((int) 0xD9930810), unchecked((int) 0xB38BAE12), unchecked((int) 0xDCCF3F2E), 0x5512721F, 0x2E6B7124, 0x501ADDE6, unchecked((int) 0x9F84CD87), 0x7A584718, 0x7408DA17, unchecked((int) 0xBC9F9ABC), unchecked((int) 0xE94B7D8C), unchecked((int) 0xEC7AEC3A), unchecked((int) 0xDB851DFA), 0x63094366, unchecked((int) 0xC464C3D2), unchecked((int) 0xEF1C1847), 0x3215D908, unchecked((int) 0xDD433B37), 0x24C2BA16, 0x12A14D43, 0x2A65C451, 0x50940002, 0x133AE4DD, 0x71DFF89E, 0x10314E55, unchecked((int) 0x81AC77D6), 0x5F11199B,
0x043556F1, unchecked((int) 0xD7A3C76B), 0x3C11183B, 0x5924A509, unchecked((int) 0xF28FE6ED), unchecked((int) 0x97F1FBFA), unchecked((int) 0x9EBABF2C), 0x1E153C6E, unchecked((int) 0x86E34570), unchecked((int) 0xEAE96FB1), unchecked((int) 0x860E5E0A), 0x5A3E2AB3, 0x771FE71C, 0x4E3D06FA, 0x2965DCB9, unchecked((int) 0x99E71D0F), unchecked((int) 0x803E89D6), 0x5266C825, 0x2E4CC978, unchecked((int) 0x9C10B36A), unchecked((int) 0xC6150EBA), unchecked((int) 0x94E2EA78), unchecked((int) 0xA5FC3C53), 0x1E0A2DF4, unchecked((int) 0xF2F74EA7), 0x361D2B3D, 0x1939260F, 0x19C27960, 0x5223A708, unchecked((int) 0xF71312B6), unchecked((int) 0xEBADFE6E), unchecked((int) 0xEAC31F66), unchecked((int) 0xE3BC4595), unchecked((int) 0xA67BC883), unchecked((int) 0xB17F37D1), 0x018CFF28, unchecked((int) 0xC332DDEF), unchecked((int) 0xBE6C5AA5), 0x65582185, 0x68AB9802, unchecked((int) 0xEECEA50F), unchecked((int) 0xDB2F953B), 0x2AEF7DAD, 0x5B6E2F84, 0x1521B628, 0x29076170, unchecked((int) 0xECDD4775), 0x619F1510, 0x13CCA830, unchecked((int) 0xEB61BD96), 0x0334FE1E, unchecked((int) 0xAA0363CF), unchecked((int) 0xB5735C90), 0x4C70A239, unchecked((int) 0xD59E9E0B), unchecked((int) 0xCBAADE14), unchecked((int) 0xEECC86BC), 0x60622CA7, unchecked((int) 0x9CAB5CAB), unchecked((int) 0xB2F3846E), 0x648B1EAF, 0x19BDF0CA, unchecked((int) 0xA02369B9), 0x655ABB50, 0x40685A32, 0x3C2AB4B3, 0x319EE9D5, unchecked((int) 0xC021B8F7), unchecked((int) 0x9B540B19), unchecked((int) 0x875FA099), unchecked((int) 0x95F7997E), 0x623D7DA8, unchecked((int) 0xF837889A), unchecked((int) 0x97E32D77), 0x11ED935F, 0x16681281, 0x0E358829, unchecked((int) 0xC7E61FD6), unchecked((int) 0x96DEDFA1), 0x7858BA99, 0x57F584A5, 0x1B227263, unchecked((int) 0x9B83C3FF), 0x1AC24696, unchecked((int) 0xCDB30AEB), 0x532E3054, unchecked((int) 0x8FD948E4), 0x6DBC3128, 0x58EBF2EF, 0x34C6FFEA, unchecked((int) 0xFE28ED61), unchecked((int) 0xEE7C3C73), 0x5D4A14D9, unchecked((int) 0xE864B7E3), 0x42105D14, 0x203E13E0, 0x45EEE2B6, unchecked((int) 0xA3AAABEA), unchecked((int)
0xDB6C4F15), unchecked((int) 0xFACB4FD0), unchecked((int) 0xC742F442), unchecked((int) 0xEF6ABBB5), 0x654F3B1D, 0x41CD2105, unchecked((int) 0xD81E799E), unchecked((int) 0x86854DC7), unchecked((int) 0xE44B476A), 0x3D816250, unchecked((int) 0xCF62A1F2), 0x5B8D2646, unchecked((int) 0xFC8883A0), unchecked((int) 0xC1C7B6A3), 0x7F1524C3, 0x69CB7492, 0x47848A0B, 0x5692B285, 0x095BBF00, unchecked((int) 0xAD19489D), 0x1462B174, 0x23820E00, 0x58428D2A, 0x0C55F5EA, 0x1DADF43E, 0x233F7061, 0x3372F092, unchecked((int) 0x8D937E41), unchecked((int) 0xD65FECF1), 0x6C223BDB, 0x7CDE3759, unchecked((int) 0xCBEE7460), 0x4085F2A7, unchecked((int) 0xCE77326E), unchecked((int) 0xA6078084), 0x19F8509E, unchecked((int) 0xE8EFD855), 0x61D99735, unchecked((int) 0xA969A7AA), unchecked((int) 0xC50C06C2), 0x5A04ABFC, unchecked((int) 0x800BCADC), unchecked((int) 0x9E447A2E), unchecked((int) 0xC3453484), unchecked((int) 0xFDD56705), 0x0E1E9EC9, unchecked((int) 0xDB73DBD3), 0x105588CD, 0x675FDA79, unchecked((int) 0xE3674340), unchecked((int) 0xC5C43465), 0x713E38D8, 0x3D28F89E, unchecked((int) 0xF16DFF20), 0x153E21E7, unchecked((int) 0x8FB03D4A), unchecked((int) 0xE6E39F2B), unchecked((int) 0xDB83ADF7)};
//UPGRADE_NOTE: Final was removed from the declaration of 'KS2'. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
private static readonly int[] KS2 = new int[]{unchecked((int) 0xE93D5A68), unchecked((int) 0x948140F7), unchecked((int) 0xF64C261C), unchecked((int) 0x94692934), 0x411520F7, 0x7602D4F7, unchecked((int) 0xBCF46B2E), unchecked((int) 0xD4A20068), unchecked((int) 0xD4082471), 0x3320F46A, 0x43B7D4B7, 0x500061AF, 0x1E39F62E, unchecked((int) 0x97244546), 0x14214F74, unchecked((int) 0xBF8B8840), 0x4D95FC1D, unchecked((int) 0x96B591AF), 0x70F4DDD3, 0x66A02F45, unchecked((int) 0xBFBC09EC), 0x03BD9785, 0x7FAC6DD0, 0x31CB8504, unchecked((int) 0x96EB27B3), 0x55FD3941, unchecked((int) 0xDA2547E6), unchecked((int) 0xABCA0A9A), 0x28507825, 0x530429F4, 0x0A2C86DA, unchecked((int) 0xE9B66DFB), 0x68DC1462, unchecked((int) 0xD7486900), 0x680EC0A4, 0x27A18DEE, 0x4F3FFEA2, unchecked((int) 0xE887AD8C), unchecked((int) 0xB58CE006), 0x7AF4D6B6, unchecked((int) 0xAACE1E7C), unchecked((int) 0xD3375FEC), unchecked((int) 0xCE78A399), 0x406B2A42, 0x20FE9E35, unchecked((int) 0xD9F385B9), unchecked((int) 0xEE39D7AB), 0x3B124E8B, 0x1DC9FAF7, 0x4B6D1856, 0x26A36631, unchecked((int) 0xEAE397B2), 0x3A6EFA74, unchecked((int) 0xDD5B4332), 0x6841E7F7, unchecked((int) 0xCA7820FB), unchecked((int) 0xFB0AF54E), unchecked((int) 0xD8FEB397), 0x454056AC, unchecked((int) 0xBA489527), 0x55533A3A, 0x20838D87, unchecked((int) 0xFE6BA9B7), unchecked((int) 0xD096954B), 0x55A867BC, unchecked((int) 0xA1159A58), unchecked((int) 0xCCA92963), unchecked((int) 0x99E1DB33), unchecked((int) 0xA62A4A56), 0x3F3125F9, 0x5EF47E1C, unchecked((int) 0x9029317C), unchecked((int) 0xFDF8E802), 0x04272F70, unchecked((int) 0x80BB155C), 0x05282CE3, unchecked((int) 0x95C11548), unchecked((int) 0xE4C66D22), 0x48C1133F, unchecked((int) 0xC70F86DC), 0x07F9C9EE, 0x41041F0F, 0x404779A4, 0x5D886E17, 0x325F51EB, unchecked((int) 0xD59BC0D1), unchecked((int) 0xF2BCC18F), 0x41113564, 0x257B7834, 0x602A9C60, unchecked((int) 0xDFF8E8A3), 0x1F636C1B, 0x0E12B4C2, 0x02E1329E, unchecked((int) 0xAF664FD1), unchecked((int) 0xCAD18115), 0x6B2395E0, 0x333E92E1, 0x3B240B62, unchecked((int)
0xEEBEB922), unchecked((int) 0x85B2A20E), unchecked((int) 0xE6BA0D99), unchecked((int) 0xDE720C8C), 0x2DA2F728, unchecked((int) 0xD0127845), unchecked((int) 0x95B794FD), 0x647D0862, unchecked((int) 0xE7CCF5F0), 0x5449A36F, unchecked((int) 0x877D48FA), unchecked((int) 0xC39DFD27), unchecked((int) 0xF33E8D1E), 0x0A476341, unchecked((int) 0x992EFF74), 0x3A6F6EAB, unchecked((int) 0xF4F8FD37), unchecked((int) 0xA812DC60), unchecked((int) 0xA1EBDDF8), unchecked((int) 0x991BE14C), unchecked((int) 0xDB6E6B0D), unchecked((int) 0xC67B5510), 0x6D672C37, 0x2765D43B, unchecked((int) 0xDCD0E804), unchecked((int) 0xF1290DC7), unchecked((int) 0xCC00FFA3), unchecked((int) 0xB5390F92), 0x690FED0B, 0x667B9FFB, unchecked((int) 0xCEDB7D9C), unchecked((int) 0xA091CF0B), unchecked((int) 0xD9155EA3), unchecked((int) 0xBB132F88), 0x515BAD24, 0x7B9479BF, 0x763BD6EB, 0x37392EB3, unchecked((int) 0xCC115979), unchecked((int) 0x8026E297), unchecked((int) 0xF42E312D), 0x6842ADA7, unchecked((int) 0xC66A2B3B), 0x12754CCC, 0x782EF11C, 0x6A124237, unchecked((int) 0xB79251E7), 0x06A1BBE6, 0x4BFB6350, 0x1A6B1018, 0x11CAEDFA, 0x3D25BDD8, unchecked((int) 0xE2E1C3C9), 0x44421659, 0x0A121386, unchecked((int) 0xD90CEC6E), unchecked((int) 0xD5ABEA2A), 0x64AF674E, unchecked((int) 0xDA86A85F), unchecked((int) 0xBEBFE988), 0x64E4C3FE, unchecked((int) 0x9DBC8057), unchecked((int) 0xF0F7C086), 0x60787BF8, 0x6003604D, unchecked((int) 0xD1FD8346), unchecked((int) 0xF6381FB0), 0x7745AE04, unchecked((int) 0xD736FCCC), unchecked((int) 0x83426B33), unchecked((int) 0xF01EAB71), unchecked((int) 0xB0804187), 0x3C005E5F, 0x77A057BE, unchecked((int) 0xBDE8AE24), 0x55464299, unchecked((int) 0xBF582E61), 0x4E58F48F, unchecked((int) 0xF2DDFDA2), unchecked((int) 0xF474EF38), unchecked((int) 0x8789BDC2), 0x5366F9C3, unchecked((int) 0xC8B38E74), unchecked((int) 0xB475F255), 0x46FCD9B9, 0x7AEB2661, unchecked((int) 0x8B1DDF84), unchecked((int) 0x846A0E79), unchecked((int) 0x915F95E2), 0x466E598E, 0x20B45770, unchecked((int) 0x8CD55591), unchecked((int)
0xC902DE4C), unchecked((int) 0xB90BACE1), unchecked((int) 0xBB8205D0), 0x11A86248, 0x7574A99E, unchecked((int) 0xB77F19B6), unchecked((int) 0xE0A9DC09), 0x662D09A1, unchecked((int) 0xC4324633), unchecked((int) 0xE85A1F02), 0x09F0BE8C, 0x4A99A025, 0x1D6EFE10, 0x1AB93D1D, 0x0BA5A4DF, unchecked((int) 0xA186F20F), 0x2868F169, unchecked((int) 0xDCB7DA83), 0x573906FE, unchecked((int) 0xA1E2CE9B), 0x4FCD7F52, 0x50115E01, unchecked((int) 0xA70683FA), unchecked((int) 0xA002B5C4), 0x0DE6D027, unchecked((int) 0x9AF88C27), 0x773F8641, unchecked((int) 0xC3604C06), 0x61A806B5, unchecked((int) 0xF0177A28), unchecked((int) 0xC0F586E0), 0x006058AA, 0x30DC7D62, 0x11E69ED7, 0x2338EA63, 0x53C2DD94, unchecked((int) 0xC2C21634), unchecked((int) 0xBBCBEE56), unchecked((int) 0x90BCB6DE), unchecked((int) 0xEBFC7DA1), unchecked((int) 0xCE591D76), 0x6F05E409, 0x4B7C0188, 0x39720A3D, 0x7C927C24, unchecked((int) 0x86E3725F), 0x724D9DB9, 0x1AC15BB4, unchecked((int) 0xD39EB8FC), unchecked((int) 0xED545578), 0x08FCA5B5, unchecked((int) 0xD83D7CD3), 0x4DAD0FC4, 0x1E50EF5E, unchecked((int) 0xB161E6F8), unchecked((int) 0xA28514D9), 0x6C51133C, 0x6FD5C7E7, 0x56E14EC4, 0x362ABFCE, unchecked((int) 0xDDC6C837), unchecked((int) 0xD79A3234), unchecked((int) 0x92638212), 0x670EFA8E, 0x406000E0};
//UPGRADE_NOTE: Final was removed from the declaration of 'KS3'. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
private static readonly int[] KS3 = new int[]{0x3A39CE37, unchecked((int) 0xD3FAF5CF), unchecked((int) 0xABC27737), 0x5AC52D1B, 0x5CB0679E, 0x4FA33742, unchecked((int) 0xD3822740), unchecked((int) 0x99BC9BBE), unchecked((int) 0xD5118E9D), unchecked((int) 0xBF0F7315), unchecked((int) 0xD62D1C7E), unchecked((int) 0xC700C47B), unchecked((int) 0xB78C1B6B), 0x21A19045, unchecked((int) 0xB26EB1BE), 0x6A366EB4, 0x5748AB2F, unchecked((int) 0xBC946E79), unchecked((int) 0xC6A376D2), 0x6549C2C8, 0x530FF8EE, 0x468DDE7D, unchecked((int) 0xD5730A1D), 0x4CD04DC6, 0x2939BBDB, unchecked((int) 0xA9BA4650), unchecked((int) 0xAC9526E8), unchecked((int) 0xBE5EE304), unchecked((int) 0xA1FAD5F0), 0x6A2D519A, 0x63EF8CE2, unchecked((int) 0x9A86EE22), unchecked((int) 0xC089C2B8), 0x43242EF6, unchecked((int) 0xA51E03AA), unchecked((int) 0x9CF2D0A4), unchecked((int) 0x83C061BA), unchecked((int) 0x9BE96A4D), unchecked((int) 0x8FE51550), unchecked((int) 0xBA645BD6), 0x2826A2F9, unchecked((int) 0xA73A3AE1), 0x4BA99586, unchecked((int) 0xEF5562E9), unchecked((int) 0xC72FEFD3), unchecked((int) 0xF752F7DA), 0x3F046F69, 0x77FA0A59, unchecked((int) 0x80E4A915), unchecked((int) 0x87B08601), unchecked((int) 0x9B09E6AD), 0x3B3EE593, unchecked((int) 0xE990FD5A), unchecked((int) 0x9E34D797), 0x2CF0B7D9, 0x022B8B51, unchecked((int) 0x96D5AC3A), 0x017DA67D, unchecked((int) 0xD1CF3ED6), 0x7C7D2D28, 0x1F9F25CF, unchecked((int) 0xADF2B89B), 0x5AD6B472, 0x5A88F54C, unchecked((int) 0xE029AC71), unchecked((int) 0xE019A5E6), 0x47B0ACFD, unchecked((int) 0xED93FA9B), unchecked((int) 0xE8D3C48D), 0x283B57CC, unchecked((int) 0xF8D56629), 0x79132E28, 0x785F0191, unchecked((int) 0xED756055), unchecked((int) 0xF7960E44), unchecked((int) 0xE3D35E8C), 0x15056DD4, unchecked((int) 0x88F46DBA), 0x03A16125, 0x0564F0BD, unchecked((int) 0xC3EB9E15), 0x3C9057A2, unchecked((int) 0x97271AEC), unchecked((int) 0xA93A072A), 0x1B3F6D9B, 0x1E6321F5, unchecked((int) 0xF59C66FB), 0x26DCF319, 0x7533D928, unchecked((int) 0xB155FDF5), 0x03563482, unchecked((int) 0x8ABA3CBB),
0x28517711, unchecked((int) 0xC20AD9F8), unchecked((int) 0xABCC5167), unchecked((int) 0xCCAD925F), 0x4DE81751, 0x3830DC8E, 0x379D5862, unchecked((int) 0x9320F991), unchecked((int) 0xEA7A90C2), unchecked((int) 0xFB3E7BCE), 0x5121CE64, 0x774FBE32, unchecked((int) 0xA8B6E37E), unchecked((int) 0xC3293D46), 0x48DE5369, 0x6413E680, unchecked((int) 0xA2AE0810), unchecked((int) 0xDD6DB224), 0x69852DFD, 0x09072166, unchecked((int) 0xB39A460A), 0x6445C0DD, 0x586CDECF, 0x1C20C8AE, 0x5BBEF7DD, 0x1B588D40, unchecked((int) 0xCCD2017F), 0x6BB4E3BB, unchecked((int) 0xDDA26A7E), 0x3A59FF45, 0x3E350A44, unchecked((int) 0xBCB4CDD5), 0x72EACEA8, unchecked((int) 0xFA6484BB), unchecked((int) 0x8D6612AE), unchecked((int) 0xBF3C6F47), unchecked((int) 0xD29BE463), 0x542F5D9E, unchecked((int) 0xAEC2771B), unchecked((int) 0xF64E6370), 0x740E0D8D, unchecked((int) 0xE75B1357), unchecked((int) 0xF8721671), unchecked((int) 0xAF537D5D), 0x4040CB08, 0x4EB4E2CC, 0x34D2466A, 0x0115AF84, unchecked((int) 0xE1B00428), unchecked((int) 0x95983A1D), 0x06B89FB4, unchecked((int) 0xCE6EA048), 0x6F3F3B82, 0x3520AB82, 0x011A1D4B, 0x277227F8, 0x611560B1, unchecked((int) 0xE7933FDC), unchecked((int) 0xBB3A792B), 0x344525BD, unchecked((int) 0xA08839E1), 0x51CE794B, 0x2F32C9B7, unchecked((int) 0xA01FBAC9), unchecked((int) 0xE01CC87E), unchecked((int) 0xBCC7D1F6), unchecked((int) 0xCF0111C3), unchecked((int) 0xA1E8AAC7), 0x1A908749, unchecked((int) 0xD44FBD9A), unchecked((int) 0xD0DADECB), unchecked((int) 0xD50ADA38), 0x0339C32A, unchecked((int) 0xC6913667), unchecked((int) 0x8DF9317C), unchecked((int) 0xE0B12B4F), unchecked((int) 0xF79E59B7), 0x43F5BB3A, unchecked((int) 0xF2D519FF), 0x27D9459C, unchecked((int) 0xBF97222C), 0x15E6FC2A, 0x0F91FC71, unchecked((int) 0x9B941525), unchecked((int) 0xFAE59361), unchecked((int) 0xCEB69CEB), unchecked((int) 0xC2A86459), 0x12BAA8D1, unchecked((int) 0xB6C1075E), unchecked((int) 0xE3056A0C), 0x10D25065, unchecked((int) 0xCB03A442), unchecked((int) 0xE0EC6E0E), 0x1698DB3B, 0x4C98A0BE, 0x3278E964, unchecked((
int) 0x9F1F9532), unchecked((int) 0xE0D392DF), unchecked((int) 0xD3A0342B), unchecked((int) 0x8971F21E), 0x1B0A7441, 0x4BA3348C, unchecked((int) 0xC5BE7120), unchecked((int) 0xC37632D8), unchecked((int) 0xDF359F8D), unchecked((int) 0x9B992F2E), unchecked((int) 0xE60B6F47), 0x0FE3F11D, unchecked((int) 0xE54CDA54), 0x1EDAD891, unchecked((int) 0xCE6279CF), unchecked((int) 0xCD3E7E6F), 0x1618B166, unchecked((int) 0xFD2C1D05), unchecked((int) 0x848FD2C5), unchecked((int) 0xF6FB2299), unchecked((int) 0xF523F357), unchecked((int) 0xA6327623), unchecked((int) 0x93A83531), 0x56CCCD02, unchecked((int) 0xACF08162), 0x5A75EBB5, 0x6E163697, unchecked((int) 0x88D273CC), unchecked((int) 0xDE966292), unchecked((int) 0x81B949D0), 0x4C50901B, 0x71C65614, unchecked((int) 0xE6C6C7BD), 0x327A140A, 0x45E1D006, unchecked((int) 0xC3F27B9A), unchecked((int) 0xC9AA53FD), 0x62A80F00, unchecked((int) 0xBB25BFE2), 0x35BDD2F6, 0x71126905, unchecked((int) 0xB2040222), unchecked((int) 0xB6CBCF7C), unchecked((int) 0xCD769C2B), 0x53113EC0, 0x1640E3D3, 0x38ABBD60, 0x2547ADF0, unchecked((int) 0xBA38209C), unchecked((int) 0xF746CE76), 0x77AFA1C5, 0x20756060, unchecked((int) 0x85CBFE4E), unchecked((int) 0x8AE88DD8), 0x7AAAF9B0, 0x4CF9AA7E, 0x1948C25C, 0x02FB8A8C, 0x01C36AE4, unchecked((int) 0xD6EBE1F9), unchecked((int) 0x90D4F869), unchecked((int) 0xA65CDEA0), 0x3F09252D, unchecked((int) 0xC208E69F), unchecked((int) 0xB74E6132), unchecked((int) 0xCE77E25B), 0x578FDFE3, 0x3AC372E6};
//====================================
// Useful constants
//====================================
private const int ROUNDS = 16;
private const int BLOCK_SIZE = 8; // bytes = 64 bits
private const int SBOX_SK = 256;
//UPGRADE_NOTE: Final was removed from the declaration of 'P_SZ '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
private static readonly int P_SZ = ROUNDS + 2;
//UPGRADE_NOTE: Final was removed from the declaration of 'S0 '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
//UPGRADE_NOTE: Final was removed from the declaration of 'S1 '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
//UPGRADE_NOTE: Final was removed from the declaration of 'S2 '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
//UPGRADE_NOTE: Final was removed from the declaration of 'S3 '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
private int[] S0;
private int[] S1;
private int[] S2;
private int[] S3; // the s-boxes
//UPGRADE_NOTE: Final was removed from the declaration of 'P '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
private int[] P; // the p-array
private sbyte[] workingKey = null;
public BlowfishCipher()
{
S0 = new int[SBOX_SK];
S1 = new int[SBOX_SK];
S2 = new int[SBOX_SK];
S3 = new int[SBOX_SK];
P = new int[P_SZ];
}
/// <summary> initialise a Blowfish cipher.
///
/// </summary>
/// <param name="encryption">whether or not we are for encryption.
/// </param>
/// <param name="key">the key used to set up the cipher.
/// </param>
/// <exception cref="IllegalArgumentException">if the params argument is inappropriate.
/// </exception>
public virtual void init(sbyte[] key)
{
this.workingKey = key;
Key = this.workingKey;
return ;
}
public int processBlock(sbyte[] in_Renamed, int inOff)
{
if (workingKey == null)
{
throw new System.SystemException("Blowfish not initialised");
}
if ((inOff + BLOCK_SIZE) > in_Renamed.Length)
{
throw new System.IO.IOException("input buffer too short");
}
decryptBlock(in_Renamed, inOff);
return BLOCK_SIZE;
}
public virtual void reset()
{
}
//==================================
// Private Implementation
//==================================
private int F(int x)
{
return (((S0[(SupportClass.URShift(x, 24))] + S1[(SupportClass.URShift(x, 16)) & 0xff]) ^ S2[(SupportClass.URShift(x, 8)) & 0xff]) + S3[x & 0xff]);
}
/// <summary> apply the encryption cycle to each value pair in the table.</summary>
private void processTable(int xl, int xr, int[] table)
{
int size = table.Length;
for (int s = 0; s < size; s += 2)
{
xl ^= P[0];
for (int i = 1; i < ROUNDS; i += 2)
{
xr ^= F(xl) ^ P[i];
xl ^= F(xr) ^ P[i + 1];
}
xr ^= P[ROUNDS + 1];
table[s] = xr;
table[s + 1] = xl;
xr = xl; // end of cycle swap
xl = table[s];
}
}
/// <summary> Decrypt the given input starting at the given offset and place the
/// result in the provided buffer starting at the given offset. The input
/// will be an exact multiple of our blocksize.
/// </summary>
private void decryptBlock(sbyte[] src, int srcIndex)
{
int xl = BytesTo32bits(src, srcIndex);
int xr = BytesTo32bits(src, srcIndex + 4);
xl ^= P[ROUNDS + 1];
for (int i = ROUNDS; i > 0; i -= 2)
{
xr ^= F(xl) ^ P[i];
xl ^= F(xr) ^ P[i - 1];
}
xr ^= P[0];
Bits32ToBytes(xr, src, srcIndex);
Bits32ToBytes(xl, src, srcIndex + 4);
}
private int BytesTo32bits(sbyte[] b, int i)
{
return ((b[i + 3] & 0xff) << 24) | ((b[i + 2] & 0xff) << 16) | ((b[i + 1] & 0xff) << 8) | ((b[i] & 0xff));
}
private void Bits32ToBytes(int in_Renamed, sbyte[] b, int offset)
{
b[offset] = (sbyte) in_Renamed;
b[offset + 1] = (sbyte) (in_Renamed >> 8);
b[offset + 2] = (sbyte) (in_Renamed >> 16);
b[offset + 3] = (sbyte) (in_Renamed >> 24);
}
}
}