pascal/DCPCrypt
1
0
Fork 0
mirror of https://github.com/StephenGenusa/DCPCrypt.git synced 2025-06-12 21:57:27 +02:00
Code Issues Actions Releases Activity
Files
5fc435d45fb0a8ae93fdb02be2f114a3e935a9c7
DCPCrypt/Ciphers/DCPmars.pas

718 lines
27 KiB
ObjectPascal
Raw Normal View History

Initial Commit with XE7 Package Files added DCPCrypt by David Barton updated and tested with Delphi 2009, 2010, XE, XE2, XE3, XE4, XE5 by Warren Postma. Updated for XE7 by Stephen Genusa.
2015-03-08 18:30:34 -05:00
{******************************************************************************}
{* DCPcrypt v2.1 written by David Barton (crypto@cityinthesky.co.uk) **********}
{******************************************************************************}
{* A binary compatible implementation of Mars *********************************}
{******************************************************************************}
{* Copyright (c) 1999-2002 David Barton *}
{* 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. *}
{******************************************************************************}
unit DCPmars;
{$INCLUDE '..\dcp.inc'}
interface
uses
Classes, Sysutils, DCPcrypt2, DCPconst, DCPblockciphers;
type
TDCP_mars= class(TDCP_blockcipher128)
protected
KeyData: array[0..39] of DWord;
procedure InitKey(const Key; Size: longword); override;
public
class function GetId: integer; override;
class function GetAlgorithm: string; override;
class function GetMaxKeySize: integer; override;
class function SelfTest: boolean; override;
procedure Burn; override;
procedure EncryptECB(const InData; var OutData); override;
procedure DecryptECB(const InData; var OutData); override;
end;
{******************************************************************************}
{******************************************************************************}
implementation
{$R-}{$Q-}
{$I DCPmars.inc}
{$IFDEF DELPHIXE2_UP}
{$POINTERMATH ON}
{$ENDIF}
function LRot32(X: DWord; c: longword): DWord;
begin
LRot32:= (X shl c) or (X shr (32 - c));
end;
function RRot32(X: DWord; c: longword): DWord;
begin
RRot32:= (X shr c) or (X shl (32 - c));
end;
class function TDCP_mars.GetID: integer;
begin
Result:= DCP_mars;
end;
class function TDCP_mars.GetAlgorithm: string;
begin
Result:= 'Mars';
end;
class function TDCP_mars.GetMaxKeySize: integer;
begin
Result:= 1248;
end;
class function TDCP_mars.SelfTest: boolean;
const
Key1: array[0..3] of dword=
($deb35132,$83c296de,$39069e6b,$994c2438);
Key2: array[0..5] of dword=
($a5391779,$1a58048b,$a853a993,$1d41102c,$088658d1,$954d8738);
Key3: array[0..7] of dword=
($9867a1fb,$22ef7a3e,$8ce27c31,$a3e1aa02,$3ccce5e8,$2aa8beed,$9ac3db99,$27725ed6);
Plain1: array[0..3] of dword= ($deb35132,$83c296de,$39069e6b,$994c2438);
Plain2: array[0..3] of dword= ($2dc46167,$d242613e,$adbf4fa8,$8f1583b3);
Plain3: array[0..3] of dword= ($a4ab4413,$0847c4d3,$1621a7a8,$8493f4d4);
Cipher1: array[0..3] of dword= ($a91245f9,$4e032db4,$042279c4,$9ba608d7);
Cipher2: array[0..3] of dword= ($260334cb,$6d587f45,$e0d2bd54,$bd191c57);
Cipher3: array[0..3] of dword= ($67a1acdd,$be3163e3,$5f9f1c2c,$b8a48fe3);
var
Cipher: TDCP_mars;
Block: array[0..3] of dword;
begin
FillChar(Block, SizeOf(Block), 0);
Cipher:= TDCP_mars.Create(nil);
Cipher.Init(Key1,Sizeof(Key1)*8,nil);
Cipher.EncryptECB(Plain1,Block);
Result:= CompareMem(@Cipher1,@Block,Sizeof(Block));
Cipher.DecryptECB(Block,Block);
Result:= Result and CompareMem(@Plain1,@Block,Sizeof(Block));
Cipher.Burn;
Cipher.Init(Key2,Sizeof(Key2)*8,nil);
Cipher.EncryptECB(Plain2,Block);
Result:= Result and CompareMem(@Cipher2,@Block,Sizeof(Block));
Cipher.DecryptECB(Block,Block);
Result:= Result and CompareMem(@Plain2,@Block,Sizeof(Block));
Cipher.Burn;
Cipher.Init(Key3,Sizeof(Key3)*8,nil);
Cipher.EncryptECB(Plain3,Block);
Result:= Result and CompareMem(@Cipher3,@Block,Sizeof(Block));
Cipher.DecryptECB(Block,Block);
Result:= Result and CompareMem(@Plain3,@Block,Sizeof(Block));
Cipher.Burn;
Cipher.Free;
end;
procedure gen_mask(var x, m: DWord);
var
u: DWord;
begin
u:= x and (x shr 1); u:= u and (u shr 2);
u:= u and (u shr 4); u:= u and (u shr 1) and (u shr 2);
m:= u;
u:= (x xor $FFFFFFFF) and ((x xor $FFFFFFFF) shr 1); u:= u and (u shr 2);
u:= u and (u shr 4); u:= u and (u shr 1) and (u shr 2);
u:= u or m;
m:= (u shl 1) or (u shl 2) or (u shl 3)
or (u shl 4) or (u shl 5) or (u shl 6)
or (u shl 7) or (u shl 8);
m:= (m or u or (u shl 9)) and ((x xor $FFFFFFFF) xor (x shl 1)) and ((x xor $FFFFFFFF) xor (x shr 1));
m:= m and $FFFFFFFC;
end;
procedure TDCP_mars.InitKey(const Key; Size: longword);
var
i, j, m, u, w: DWord;
t: array[-7..39] of DWord;
KeyB: array[0..39] of DWord;
begin
m := 0;
Size:= Size div 8;
FillChar(KeyB,Sizeof(KeyB),0);
FillChar(t, SizeOf(t), 0);
Move(Key,KeyB,Size);
Size:= Size div 4;
Move(vk,t,Sizeof(vk));
for i:= 0 to 38 do
begin
u:= t[i-7] xor t[i-2];
t[i]:= LRot32(u,3) xor KeyB[i mod DWord(Size)] xor i;
end;
t[39]:= Size;
for j:= 0 to 6 do
begin
for i:= 1 to 39 do
begin
u:= t[i] + s_box[t[i-1] and $1FF];
t[i]:= LRot32(u,9);
end;
u:= t[0] + s_box[t[39] and $1FF];
t[0]:= LRot32(u,9);
end;
for i:= 0 to 39 do
KeyData[(7*i) mod 40]:= t[i];
i:= 5;
repeat
u:= s_box[265+(KeyData[i] and $3)];
j:= KeyData[i+3] and $1f;
w:= KeyData[i] or $3;
gen_mask(w,m);
KeyData[i]:= w xor (LRot32(u,j) and m);
Inc(i,2);
until i>= 37;
end;
procedure TDCP_mars.Burn;
begin
FillChar(KeyData,Sizeof(KeyData),$FF);
inherited Burn;
end;
procedure TDCP_mars.EncryptECB(const InData; var OutData);
var
l, m, r, t: DWord;
blk: array[0..3] of DWord;
begin
if not fInitialized then
raise EDCP_blockcipher.Create('Cipher not initialized');
Blk[0]:= PDWord(@InData)^;
Blk[1]:= PDWord(PointerToInt(@InData)+4)^;
Blk[2]:= PDWord(PointerToInt(@InData)+8)^;
Blk[3]:= PDWord(PointerToInt(@InData)+12)^;
blk[0]:= blk[0] + KeyData[0]; blk[1]:= blk[1] + KeyData[1];
blk[2]:= blk[2] + KeyData[2]; blk[3]:= blk[3] + KeyData[3];
blk[1]:= blk[1] xor s_box[ blk[0] and $FF];
blk[1]:= blk[1] + s_box[((blk[0] shr 8) and $FF) + 256];
blk[2]:= blk[2] + s_box[ (blk[0] shr 16) and $FF];
blk[3]:= blk[3] xor s_box[((blk[0] shr 24) and $FF) + 256];
blk[0]:= RRot32(blk[0], 24); blk[0]:= blk[0] + blk[3];
blk[2]:= blk[2] xor s_box[ blk[1] and $FF];
blk[2]:= blk[2] + s_box[((blk[1] shr 8) and $FF) + 256];
blk[3]:= blk[3] + s_box[ (blk[1] shr 16) and $FF];
blk[0]:= blk[0] xor s_box[((blk[1] shr 24) and $FF) + 256];
blk[1]:= RRot32(blk[1], 24); blk[1]:= blk[1] + blk[2];
blk[3]:= blk[3] xor s_box[ blk[2] and $FF];
blk[3]:= blk[3] + s_box[((blk[2] shr 8) and $FF) + 256];
blk[0]:= blk[0] + s_box[ (blk[2] shr 16) and $FF];
blk[1]:= blk[1] xor s_box[((blk[2] shr 24) and $FF) + 256];
blk[2]:= RRot32(blk[2], 24);
blk[0]:= blk[0] xor s_box[ blk[3] and $FF];
blk[0]:= blk[0] + s_box[((blk[3] shr 8) and $FF) + 256];
blk[1]:= blk[1] + s_box[ (blk[3] shr 16) and $FF];
blk[2]:= blk[2] xor s_box[((blk[3] shr 24) and $FF) + 256];
blk[3]:= RRot32(blk[3], 24);
blk[1]:= blk[1] xor s_box[ blk[0] and $FF];
blk[1]:= blk[1] + s_box[((blk[0] shr 8) and $FF) + 256];
blk[2]:= blk[2] + s_box[ (blk[0] shr 16) and $FF];
blk[3]:= blk[3] xor s_box[((blk[0] shr 24) and $FF) + 256];
blk[0]:= RRot32(blk[0], 24); blk[0]:= blk[0] + blk[3];
blk[2]:= blk[2] xor s_box[ blk[1] and $FF];
blk[2]:= blk[2] + s_box[((blk[1] shr 8) and $FF) + 256];
blk[3]:= blk[3] + s_box[ (blk[1] shr 16) and $FF];
blk[0]:= blk[0] xor s_box[((blk[1] shr 24) and $FF) + 256];
blk[1]:= RRot32(blk[1], 24); blk[1]:= blk[1] + blk[2];
blk[3]:= blk[3] xor s_box[ blk[2] and $FF];
blk[3]:= blk[3] + s_box[((blk[2] shr 8) and $FF) + 256];
blk[0]:= blk[0] + s_box[ (blk[2] shr 16) and $FF];
blk[1]:= blk[1] xor s_box[((blk[2] shr 24) and $FF) + 256];
blk[2]:= RRot32(blk[2], 24);
blk[0]:= blk[0] xor s_box[ blk[3] and $FF];
blk[0]:= blk[0] + s_box[((blk[3] shr 8) and $FF) + 256];
blk[1]:= blk[1] + s_box[ (blk[3] shr 16) and $FF];
blk[2]:= blk[2] xor s_box[((blk[3] shr 24) and $FF) + 256];
blk[3]:= RRot32(blk[3], 24);
m:= blk[0] + KeyData[4];
r:= LRot32(blk[0],13) * KeyData[5];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[0]:= LRot32(blk[0],13);
blk[1]:= blk[1] + l;
blk[2]:= blk[2] + m;
blk[3]:= blk[3] xor r;
m:= blk[1] + KeyData[6];
r:= LRot32(blk[1],13) * KeyData[7];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[1]:= LRot32(blk[1],13);
blk[2]:= blk[2] + l;
blk[3]:= blk[3] + m;
blk[0]:= blk[0] xor r;
m:= blk[2] + KeyData[8];
r:= LRot32(blk[2],13) * KeyData[9];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[2]:= LRot32(blk[2],13);
blk[3]:= blk[3] + l;
blk[0]:= blk[0] + m;
blk[1]:= blk[1] xor r;
m:= blk[3] + KeyData[10];
r:= LRot32(blk[3],13) * KeyData[11];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[3]:= LRot32(blk[3],13);
blk[0]:= blk[0] + l;
blk[1]:= blk[1] + m;
blk[2]:= blk[2] xor r;
m:= blk[0] + KeyData[12];
r:= LRot32(blk[0],13) * KeyData[13];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[0]:= LRot32(blk[0],13);
blk[1]:= blk[1] + l;
blk[2]:= blk[2] + m;
blk[3]:= blk[3] xor r;
m:= blk[1] + KeyData[14];
r:= LRot32(blk[1],13) * KeyData[15];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[1]:= LRot32(blk[1],13);
blk[2]:= blk[2] + l;
blk[3]:= blk[3] + m;
blk[0]:= blk[0] xor r;
m:= blk[2] + KeyData[16];
r:= LRot32(blk[2],13) * KeyData[17];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[2]:= LRot32(blk[2],13);
blk[3]:= blk[3] + l;
blk[0]:= blk[0] + m;
blk[1]:= blk[1] xor r;
m:= blk[3] + KeyData[18];
r:= LRot32(blk[3],13) * KeyData[19];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[3]:= LRot32(blk[3],13);
blk[0]:= blk[0] + l;
blk[1]:= blk[1] + m;
blk[2]:= blk[2] xor r;
m:= blk[0] + KeyData[20];
r:= LRot32(blk[0],13) * KeyData[21];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[0]:= LRot32(blk[0],13);
blk[3]:= blk[3] + l;
blk[2]:= blk[2] + m;
blk[1]:= blk[1] xor r;
m:= blk[1] + KeyData[22];
r:= LRot32(blk[1],13) * KeyData[23];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[1]:= LRot32(blk[1],13);
blk[0]:= blk[0] + l;
blk[3]:= blk[3] + m;
blk[2]:= blk[2] xor r;
m:= blk[2] + KeyData[24];
r:= LRot32(blk[2],13) * KeyData[25];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[2]:= LRot32(blk[2],13);
blk[1]:= blk[1] + l;
blk[0]:= blk[0] + m;
blk[3]:= blk[3] xor r;
m:= blk[3] + KeyData[26];
r:= LRot32(blk[3],13) * KeyData[27];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[3]:= LRot32(blk[3],13);
blk[2]:= blk[2] + l;
blk[1]:= blk[1] + m;
blk[0]:= blk[0] xor r;
m:= blk[0] + KeyData[28];
r:= LRot32(blk[0],13) * KeyData[29];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[0]:= LRot32(blk[0],13);
blk[3]:= blk[3] + l;
blk[2]:= blk[2] + m;
blk[1]:= blk[1] xor r;
m:= blk[1] + KeyData[30];
r:= LRot32(blk[1],13) * KeyData[31];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[1]:= LRot32(blk[1],13);
blk[0]:= blk[0] + l;
blk[3]:= blk[3] + m;
blk[2]:= blk[2] xor r;
m:= blk[2] + KeyData[32];
r:= LRot32(blk[2],13) * KeyData[33];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[2]:= LRot32(blk[2],13);
blk[1]:= blk[1] + l;
blk[0]:= blk[0] + m;
blk[3]:= blk[3] xor r;
m:= blk[3] + KeyData[34];
r:= LRot32(blk[3],13) * KeyData[35];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[3]:= LRot32(blk[3],13);
blk[2]:= blk[2] + l;
blk[1]:= blk[1] + m;
blk[0]:= blk[0] xor r;
blk[1]:= blk[1] xor s_box[ (blk[0] and $FF) + 256];
blk[2]:= blk[2] - s_box[ (blk[0] shr 24) and $FF];
blk[3]:= blk[3] - s_box[((blk[0] shr 16) and $FF) + 256];
blk[3]:= blk[3] xor s_box[ (blk[0] shr 8) and $FF];
blk[0]:= LRot32(blk[0], 24);
blk[2]:= blk[2] xor s_box[ (blk[1] and $FF) + 256];
blk[3]:= blk[3] - s_box[ (blk[1] shr 24) and $FF];
blk[0]:= blk[0] - s_box[((blk[1] shr 16) and $FF) + 256];
blk[0]:= blk[0] xor s_box[ (blk[1] shr 8) and $FF];
blk[1]:= LRot32(blk[1], 24); blk[2]:= blk[2] - blk[1];
blk[3]:= blk[3] xor s_box[ (blk[2] and $FF) + 256];
blk[0]:= blk[0] - s_box[ (blk[2] shr 24) and $FF];
blk[1]:= blk[1] - s_box[((blk[2] shr 16) and $FF) + 256];
blk[1]:= blk[1] xor s_box[ (blk[2] shr 8) and $FF];
blk[2]:= LRot32(blk[2], 24); blk[3]:= blk[3] - blk[0];
blk[0]:= blk[0] xor s_box[ (blk[3] and $FF) + 256];
blk[1]:= blk[1] - s_box[ (blk[3] shr 24) and $FF];
blk[2]:= blk[2] - s_box[((blk[3] shr 16) and $FF) + 256];
blk[2]:= blk[2] xor s_box[ (blk[3] shr 8) and $FF];
blk[3]:= LRot32(blk[3], 24);
blk[1]:= blk[1] xor s_box[ (blk[0] and $FF) + 256];
blk[2]:= blk[2] - s_box[ (blk[0] shr 24) and $FF];
blk[3]:= blk[3] - s_box[((blk[0] shr 16) and $FF) + 256];
blk[3]:= blk[3] xor s_box[ (blk[0] shr 8) and $FF];
blk[0]:= LRot32(blk[0], 24);
blk[2]:= blk[2] xor s_box[ (blk[1] and $FF) + 256];
blk[3]:= blk[3] - s_box[ (blk[1] shr 24) and $FF];
blk[0]:= blk[0] - s_box[((blk[1] shr 16) and $FF) + 256];
blk[0]:= blk[0] xor s_box[ (blk[1] shr 8) and $FF];
blk[1]:= LRot32(blk[1], 24); blk[2]:= blk[2] - blk[1];
blk[3]:= blk[3] xor s_box[ (blk[2] and $FF) + 256];
blk[0]:= blk[0] - s_box[ (blk[2] shr 24) and $FF];
blk[1]:= blk[1] - s_box[((blk[2] shr 16) and $FF) + 256];
blk[1]:= blk[1] xor s_box[ (blk[2] shr 8) and $FF];
blk[2]:= LRot32(blk[2], 24); blk[3]:= blk[3] - blk[0];
blk[0]:= blk[0] xor s_box[ (blk[3] and $FF) + 256];
blk[1]:= blk[1] - s_box[ (blk[3] shr 24) and $FF];
blk[2]:= blk[2] - s_box[((blk[3] shr 16) and $FF) + 256];
blk[2]:= blk[2] xor s_box[ (blk[3] shr 8) and $FF];
blk[3]:= LRot32(blk[3], 24);
blk[0]:= blk[0] - KeyData[36]; blk[1]:= blk[1] - KeyData[37];
blk[2]:= blk[2] - KeyData[38]; blk[3]:= blk[3] - KeyData[39];
PDWord(@OutData)^:= Blk[0];
PDWord(PointerToInt(@OutData)+4)^:= Blk[1];
PDWord(PointerToInt(@OutData)+8)^:= Blk[2];
PDWord(PointerToInt(@OutData)+12)^:= Blk[3];
end;
procedure TDCP_mars.DecryptECB(const InData; var OutData);
var
l, m, r, t: DWord;
blk: array[0..3] of DWord;
begin
if not fInitialized then
raise EDCP_blockcipher.Create('Cipher not initialized');
Blk[0]:= PDWord(@InData)^;
Blk[1]:= PDWord(PointerToInt(@InData)+4)^;
Blk[2]:= PDWord(PointerToInt(@InData)+8)^;
Blk[3]:= PDWord(PointerToInt(@InData)+12)^;
blk[0]:= blk[0] + KeyData[36]; blk[1]:= blk[1] + KeyData[37];
blk[2]:= blk[2] + KeyData[38]; blk[3]:= blk[3] + KeyData[39];
blk[3]:= RRot32(blk[3], 24);
blk[2]:= blk[2] xor s_box[ (blk[3] shr 8) and $FF];
blk[2]:= blk[2] + s_box[((blk[3] shr 16) and $FF) + 256];
blk[1]:= blk[1] + s_box[ (blk[3] shr 24) and $FF];
blk[0]:= blk[0] xor s_box[ (blk[3] and $FF) + 256];
blk[3]:= blk[3] + blk[0]; blk[2]:= RRot32(blk[2], 24);
blk[1]:= blk[1] xor s_box[ (blk[2] shr 8) and $FF];
blk[1]:= blk[1] + s_box[((blk[2] shr 16) and $FF) + 256];
blk[0]:= blk[0] + s_box[ (blk[2] shr 24) and $FF];
blk[3]:= blk[3] xor s_box[ (blk[2] and $FF) + 256];
blk[2]:= blk[2] + blk[1]; blk[1]:= RRot32(blk[1], 24);
blk[0]:= blk[0] xor s_box[ (blk[1] shr 8) and $FF];
blk[0]:= blk[0] + s_box[((blk[1] shr 16) and $FF) + 256];
blk[3]:= blk[3] + s_box[ (blk[1] shr 24) and $FF];
blk[2]:= blk[2] xor s_box[ (blk[1] and $FF) + 256];
blk[0]:= RRot32(blk[0], 24);
blk[3]:= blk[3] xor s_box[ (blk[0] shr 8) and $FF];
blk[3]:= blk[3] + s_box[((blk[0] shr 16) and $FF) + 256];
blk[2]:= blk[2] + s_box[ (blk[0] shr 24) and $FF];
blk[1]:= blk[1] xor s_box[ (blk[0] and $FF) + 256];
blk[3]:= RRot32(blk[3], 24);
blk[2]:= blk[2] xor s_box[ (blk[3] shr 8) and $FF];
blk[2]:= blk[2] + s_box[((blk[3] shr 16) and $FF) + 256];
blk[1]:= blk[1] + s_box[ (blk[3] shr 24) and $FF];
blk[0]:= blk[0] xor s_box[ (blk[3] and $FF) + 256];
blk[3]:= blk[3] + blk[0]; blk[2]:= RRot32(blk[2], 24);
blk[1]:= blk[1] xor s_box[ (blk[2] shr 8) and $FF];
blk[1]:= blk[1] + s_box[((blk[2] shr 16) and $FF) + 256];
blk[0]:= blk[0] + s_box[ (blk[2] shr 24) and $FF];
blk[3]:= blk[3] xor s_box[ (blk[2] and $FF) + 256];
blk[2]:= blk[2] + blk[1]; blk[1]:= RRot32(blk[1], 24);
blk[0]:= blk[0] xor s_box[ (blk[1] shr 8) and $FF];
blk[0]:= blk[0] + s_box[((blk[1] shr 16) and $FF) + 256];
blk[3]:= blk[3] + s_box[ (blk[1] shr 24) and $FF];
blk[2]:= blk[2] xor s_box[ (blk[1] and $FF) + 256];
blk[0]:= RRot32(blk[0], 24);
blk[3]:= blk[3] xor s_box[ (blk[0] shr 8) and $FF];
blk[3]:= blk[3] + s_box[((blk[0] shr 16) and $FF) + 256];
blk[2]:= blk[2] + s_box[ (blk[0] shr 24) and $FF];
blk[1]:= blk[1] xor s_box[ (blk[0] and $FF) + 256];
blk[3]:= RRot32(blk[3],13);
m:= blk[3] + KeyData[34];
r:= LRot32(blk[3],13) * KeyData[35];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[2]:= blk[2] - l;
blk[1]:= blk[1] - m;
blk[0]:= blk[0] xor r;
blk[2]:= RRot32(blk[2],13);
m:= blk[2] + KeyData[32];
r:= LRot32(blk[2],13) * KeyData[33];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[1]:= blk[1] - l;
blk[0]:= blk[0] - m;
blk[3]:= blk[3] xor r;
blk[1]:= RRot32(blk[1],13);
m:= blk[1] + KeyData[30];
r:= LRot32(blk[1],13) * KeyData[31];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[0]:= blk[0] - l;
blk[3]:= blk[3] - m;
blk[2]:= blk[2] xor r;
blk[0]:= RRot32(blk[0],13);
m:= blk[0] + KeyData[28];
r:= LRot32(blk[0],13) * KeyData[29];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[3]:= blk[3] - l;
blk[2]:= blk[2] - m;
blk[1]:= blk[1] xor r;
blk[3]:= RRot32(blk[3],13);
m:= blk[3] + KeyData[26];
r:= LRot32(blk[3],13) * KeyData[27];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[2]:= blk[2] - l;
blk[1]:= blk[1] - m;
blk[0]:= blk[0] xor r;
blk[2]:= RRot32(blk[2],13);
m:= blk[2] + KeyData[24];
r:= LRot32(blk[2],13) * KeyData[25];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[1]:= blk[1] - l;
blk[0]:= blk[0] - m;
blk[3]:= blk[3] xor r;
blk[1]:= RRot32(blk[1],13);
m:= blk[1] + KeyData[22];
r:= LRot32(blk[1],13) * KeyData[23];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[0]:= blk[0] - l;
blk[3]:= blk[3] - m;
blk[2]:= blk[2] xor r;
blk[0]:= RRot32(blk[0],13);
m:= blk[0] + KeyData[20];
r:= LRot32(blk[0],13) * KeyData[21];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[3]:= blk[3] - l;
blk[2]:= blk[2] - m;
blk[1]:= blk[1] xor r;
blk[3]:= RRot32(blk[3],13);
m:= blk[3] + KeyData[18];
r:= LRot32(blk[3],13) * KeyData[19];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[0]:= blk[0] - l;
blk[1]:= blk[1] - m;
blk[2]:= blk[2] xor r;
blk[2]:= RRot32(blk[2],13);
m:= blk[2] + KeyData[16];
r:= LRot32(blk[2],13) * KeyData[17];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[3]:= blk[3] - l;
blk[0]:= blk[0] - m;
blk[1]:= blk[1] xor r;
blk[1]:= RRot32(blk[1],13);
m:= blk[1] + KeyData[14];
r:= LRot32(blk[1],13) * KeyData[15];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[2]:= blk[2] - l;
blk[3]:= blk[3] - m;
blk[0]:= blk[0] xor r;
blk[0]:= RRot32(blk[0],13);
m:= blk[0] + KeyData[12];
r:= LRot32(blk[0],13) * KeyData[13];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[1]:= blk[1] - l;
blk[2]:= blk[2] - m;
blk[3]:= blk[3] xor r;
blk[3]:= RRot32(blk[3],13);
m:= blk[3] + KeyData[10];
r:= LRot32(blk[3],13) * KeyData[11];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[0]:= blk[0] - l;
blk[1]:= blk[1] - m;
blk[2]:= blk[2] xor r;
blk[2]:= RRot32(blk[2],13);
m:= blk[2] + KeyData[8];
r:= LRot32(blk[2],13) * KeyData[9];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[3]:= blk[3] - l;
blk[0]:= blk[0] - m;
blk[1]:= blk[1] xor r;
blk[1]:= RRot32(blk[1],13);
m:= blk[1] + KeyData[6];
r:= LRot32(blk[1],13) * KeyData[7];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[2]:= blk[2] - l;
blk[3]:= blk[3] - m;
blk[0]:= blk[0] xor r;
blk[0]:= RRot32(blk[0],13);
m:= blk[0] + KeyData[4];
r:= LRot32(blk[0],13) * KeyData[5];
l:= s_box[m and $1FF]; r:= LRot32(r,5);
t:= r and $1f; m:= LRot32(m,t);
l:= l xor r; r:= LRot32(r,5); l:= l xor r;
t:= r and $1f; l:= LRot32(l,t);
blk[1]:= blk[1] - l;
blk[2]:= blk[2] - m;
blk[3]:= blk[3] xor r;
blk[3]:= LRot32(blk[3], 24);
blk[2]:= blk[2] xor s_box[((blk[3] shr 24) and $FF) + 256];
blk[1]:= blk[1] - s_box[ (blk[3] shr 16) and $FF];
blk[0]:= blk[0] - s_box[((blk[3] shr 8) and $FF) + 256];
blk[0]:= blk[0] xor s_box[ blk[3] and $FF];
blk[2]:= LRot32(blk[2], 24);
blk[1]:= blk[1] xor s_box[((blk[2] shr 24) and $FF) + 256];
blk[0]:= blk[0] - s_box[ (blk[2] shr 16) and $FF];
blk[3]:= blk[3] - s_box[((blk[2] shr 8) and $FF) + 256];
blk[3]:= blk[3] xor s_box[ blk[2] and $FF];
blk[1]:= blk[1] - blk[2]; blk[1]:= LRot32(blk[1], 24);
blk[0]:= blk[0] xor s_box[((blk[1] shr 24) and $FF) + 256];
blk[3]:= blk[3] - s_box[ (blk[1] shr 16) and $FF];
blk[2]:= blk[2] - s_box[((blk[1] shr 8) and $FF) + 256];
blk[2]:= blk[2] xor s_box[ blk[1] and $FF];
blk[0]:= blk[0] - blk[3]; blk[0]:= LRot32(blk[0], 24);
blk[3]:= blk[3] xor s_box[((blk[0] shr 24) and $FF) + 256];
blk[2]:= blk[2] - s_box[ (blk[0] shr 16) and $FF];
blk[1]:= blk[1] - s_box[((blk[0] shr 8) and $FF) + 256];
blk[1]:= blk[1] xor s_box[ blk[0] and $FF];
blk[3]:= LRot32(blk[3], 24);
blk[2]:= blk[2] xor s_box[((blk[3] shr 24) and $FF) + 256];
blk[1]:= blk[1] - s_box[ (blk[3] shr 16) and $FF];
blk[0]:= blk[0] - s_box[((blk[3] shr 8) and $FF) + 256];
blk[0]:= blk[0] xor s_box[ blk[3] and $FF];
blk[2]:= LRot32(blk[2], 24);
blk[1]:= blk[1] xor s_box[((blk[2] shr 24) and $FF) + 256];
blk[0]:= blk[0] - s_box[ (blk[2] shr 16) and $FF];
blk[3]:= blk[3] - s_box[((blk[2] shr 8) and $FF) + 256];
blk[3]:= blk[3] xor s_box[ blk[2] and $FF];
blk[1]:= blk[1] - blk[2]; blk[1]:= LRot32(blk[1], 24);
blk[0]:= blk[0] xor s_box[((blk[1] shr 24) and $FF) + 256];
blk[3]:= blk[3] - s_box[ (blk[1] shr 16) and $FF];
blk[2]:= blk[2] - s_box[((blk[1] shr 8) and $FF) + 256];
blk[2]:= blk[2] xor s_box[ blk[1] and $FF];
blk[0]:= blk[0] - blk[3]; blk[0]:= LRot32(blk[0], 24);
blk[3]:= blk[3] xor s_box[((blk[0] shr 24) and $FF) + 256];
blk[2]:= blk[2] - s_box[ (blk[0] shr 16) and $FF];
blk[1]:= blk[1] - s_box[((blk[0] shr 8) and $FF) + 256];
blk[1]:= blk[1] xor s_box[ blk[0] and $FF];
blk[0]:= blk[0] - KeyData[0]; blk[1]:= blk[1] - KeyData[1];
blk[2]:= blk[2] - KeyData[2]; blk[3]:= blk[3] - KeyData[3];
PDWord(@OutData)^:= Blk[0];
PDWord(PointerToInt(@OutData)+4)^:= Blk[1];
PDWord(PointerToInt(@OutData)+8)^:= Blk[2];
PDWord(PointerToInt(@OutData)+12)^:= Blk[3];
end;
end.
Reference in New Issue Copy Permalink