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Simba/Units/Misc/dcpripemd128.pas
John P (Dgby714) f14f484c28 Simba: Hash Functions
2010-10-22 06:07:13 -04:00

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{******************************************************************************}
{* DCPcrypt v2.0 written by David Barton (crypto@cityinthesky.co.uk) **********}
{******************************************************************************}
{* A binary compatible implementation of RipeMD-128 ***************************}
{******************************************************************************}
{* Copyright (c) 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 DCPripemd128;
{$MODE Delphi}
interface
uses
Classes, Sysutils, DCPcrypt2, DCPconst;
type
TDCP_ripemd128= class(TDCP_hash)
protected
LenHi, LenLo: longword;
Index: DWord;
CurrentHash: array[0..3] of DWord;
HashBuffer: array[0..63] of byte;
procedure Compress;
public
class function GetId: integer; override;
class function GetAlgorithm: string; override;
class function GetHashSize: integer; override;
class function SelfTest: boolean; override;
procedure Init; override;
procedure Burn; override;
procedure Update(const Buffer; Size: longword); override;
procedure Final(var Digest); override;
end;
{******************************************************************************}
{******************************************************************************}
implementation
{$R-}{$Q-}
procedure TDCP_ripemd128.Compress;
var
X: array[0..15] of DWord;
a, aa, b, bb, c, cc, d, dd, t: dword;
begin
dcpFillChar(X, SizeOf(X), 0);
Move(HashBuffer,X,Sizeof(X));
a:= CurrentHash[0]; aa:= a;
b:= CurrentHash[1]; bb:= b;
c:= CurrentHash[2]; cc:= c;
d:= CurrentHash[3]; dd:= d;
t:= a + (b xor c xor d) + X[ 0]; a:= (t shl 11) or (t shr (32-11));
t:= d + (a xor b xor c) + X[ 1]; d:= (t shl 14) or (t shr (32-14));
t:= c + (d xor a xor b) + X[ 2]; c:= (t shl 15) or (t shr (32-15));
t:= b + (c xor d xor a) + X[ 3]; b:= (t shl 12) or (t shr (32-12));
t:= a + (b xor c xor d) + X[ 4]; a:= (t shl 5) or (t shr (32-5));
t:= d + (a xor b xor c) + X[ 5]; d:= (t shl 8) or (t shr (32-8));
t:= c + (d xor a xor b) + X[ 6]; c:= (t shl 7) or (t shr (32-7));
t:= b + (c xor d xor a) + X[ 7]; b:= (t shl 9) or (t shr (32-9));
t:= a + (b xor c xor d) + X[ 8]; a:= (t shl 11) or (t shr (32-11));
t:= d + (a xor b xor c) + X[ 9]; d:= (t shl 13) or (t shr (32-13));
t:= c + (d xor a xor b) + X[10]; c:= (t shl 14) or (t shr (32-14));
t:= b + (c xor d xor a) + X[11]; b:= (t shl 15) or (t shr (32-15));
t:= a + (b xor c xor d) + X[12]; a:= (t shl 6) or (t shr (32-6));
t:= d + (a xor b xor c) + X[13]; d:= (t shl 7) or (t shr (32-7));
t:= c + (d xor a xor b) + X[14]; c:= (t shl 9) or (t shr (32-9));
t:= b + (c xor d xor a) + X[15]; b:= (t shl 8) or (t shr (32-8));
t:= a + ((b and c) or (not b and d)) + X[ 7]+$5A827999; a:= (t shl 7) or (t shr (32-7));
t:= d + ((a and b) or (not a and c)) + X[ 4]+$5A827999; d:= (t shl 6) or (t shr (32-6));
t:= c + ((d and a) or (not d and b)) + X[13]+$5A827999; c:= (t shl 8) or (t shr (32-8));
t:= b + ((c and d) or (not c and a)) + X[ 1]+$5A827999; b:= (t shl 13) or (t shr (32-13));
t:= a + ((b and c) or (not b and d)) + X[10]+$5A827999; a:= (t shl 11) or (t shr (32-11));
t:= d + ((a and b) or (not a and c)) + X[ 6]+$5A827999; d:= (t shl 9) or (t shr (32-9));
t:= c + ((d and a) or (not d and b)) + X[15]+$5A827999; c:= (t shl 7) or (t shr (32-7));
t:= b + ((c and d) or (not c and a)) + X[ 3]+$5A827999; b:= (t shl 15) or (t shr (32-15));
t:= a + ((b and c) or (not b and d)) + X[12]+$5A827999; a:= (t shl 7) or (t shr (32-7));
t:= d + ((a and b) or (not a and c)) + X[ 0]+$5A827999; d:= (t shl 12) or (t shr (32-12));
t:= c + ((d and a) or (not d and b)) + X[ 9]+$5A827999; c:= (t shl 15) or (t shr (32-15));
t:= b + ((c and d) or (not c and a)) + X[ 5]+$5A827999; b:= (t shl 9) or (t shr (32-9));
t:= a + ((b and c) or (not b and d)) + X[ 2]+$5A827999; a:= (t shl 11) or (t shr (32-11));
t:= d + ((a and b) or (not a and c)) + X[14]+$5A827999; d:= (t shl 7) or (t shr (32-7));
t:= c + ((d and a) or (not d and b)) + X[11]+$5A827999; c:= (t shl 13) or (t shr (32-13));
t:= b + ((c and d) or (not c and a)) + X[ 8]+$5A827999; b:= (t shl 12) or (t shr (32-12));
t:= a + ((b or not c) xor d) + X[ 3]+$6ED9EBA1; a:= (t shl 11) or (t shr (32-11));
t:= d + ((a or not b) xor c) + X[10]+$6ED9EBA1; d:= (t shl 13) or (t shr (32-13));
t:= c + ((d or not a) xor b) + X[14]+$6ED9EBA1; c:= (t shl 6) or (t shr (32-6));
t:= b + ((c or not d) xor a) + X[ 4]+$6ED9EBA1; b:= (t shl 7) or (t shr (32-7));
t:= a + ((b or not c) xor d) + X[ 9]+$6ED9EBA1; a:= (t shl 14) or (t shr (32-14));
t:= d + ((a or not b) xor c) + X[15]+$6ED9EBA1; d:= (t shl 9) or (t shr (32-9));
t:= c + ((d or not a) xor b) + X[ 8]+$6ED9EBA1; c:= (t shl 13) or (t shr (32-13));
t:= b + ((c or not d) xor a) + X[ 1]+$6ED9EBA1; b:= (t shl 15) or (t shr (32-15));
t:= a + ((b or not c) xor d) + X[ 2]+$6ED9EBA1; a:= (t shl 14) or (t shr (32-14));
t:= d + ((a or not b) xor c) + X[ 7]+$6ED9EBA1; d:= (t shl 8) or (t shr (32-8));
t:= c + ((d or not a) xor b) + X[ 0]+$6ED9EBA1; c:= (t shl 13) or (t shr (32-13));
t:= b + ((c or not d) xor a) + X[ 6]+$6ED9EBA1; b:= (t shl 6) or (t shr (32-6));
t:= a + ((b or not c) xor d) + X[13]+$6ED9EBA1; a:= (t shl 5) or (t shr (32-5));
t:= d + ((a or not b) xor c) + X[11]+$6ED9EBA1; d:= (t shl 12) or (t shr (32-12));
t:= c + ((d or not a) xor b) + X[ 5]+$6ED9EBA1; c:= (t shl 7) or (t shr (32-7));
t:= b + ((c or not d) xor a) + X[12]+$6ED9EBA1; b:= (t shl 5) or (t shr (32-5));
t:= a + ((b and d) or (c and not d)) + X[ 1]+$8F1BBCDC; a:= (t shl 11) or (t shr (32-11));
t:= d + ((a and c) or (b and not c)) + X[ 9]+$8F1BBCDC; d:= (t shl 12) or (t shr (32-12));
t:= c + ((d and b) or (a and not b)) + X[11]+$8F1BBCDC; c:= (t shl 14) or (t shr (32-14));
t:= b + ((c and a) or (d and not a)) + X[10]+$8F1BBCDC; b:= (t shl 15) or (t shr (32-15));
t:= a + ((b and d) or (c and not d)) + X[ 0]+$8F1BBCDC; a:= (t shl 14) or (t shr (32-14));
t:= d + ((a and c) or (b and not c)) + X[ 8]+$8F1BBCDC; d:= (t shl 15) or (t shr (32-15));
t:= c + ((d and b) or (a and not b)) + X[12]+$8F1BBCDC; c:= (t shl 9) or (t shr (32-9));
t:= b + ((c and a) or (d and not a)) + X[ 4]+$8F1BBCDC; b:= (t shl 8) or (t shr (32-8));
t:= a + ((b and d) or (c and not d)) + X[13]+$8F1BBCDC; a:= (t shl 9) or (t shr (32-9));
t:= d + ((a and c) or (b and not c)) + X[ 3]+$8F1BBCDC; d:= (t shl 14) or (t shr (32-14));
t:= c + ((d and b) or (a and not b)) + X[ 7]+$8F1BBCDC; c:= (t shl 5) or (t shr (32-5));
t:= b + ((c and a) or (d and not a)) + X[15]+$8F1BBCDC; b:= (t shl 6) or (t shr (32-6));
t:= a + ((b and d) or (c and not d)) + X[14]+$8F1BBCDC; a:= (t shl 8) or (t shr (32-8));
t:= d + ((a and c) or (b and not c)) + X[ 5]+$8F1BBCDC; d:= (t shl 6) or (t shr (32-6));
t:= c + ((d and b) or (a and not b)) + X[ 6]+$8F1BBCDC; c:= (t shl 5) or (t shr (32-5));
t:= b + ((c and a) or (d and not a)) + X[ 2]+$8F1BBCDC; b:= (t shl 12) or (t shr (32-12));
t:= aa + ((bb and dd) or (cc and not dd)) + X[ 5]+$50A28BE6; aa:= (t shl 8) or (t shr (32-8));
t:= dd + ((aa and cc) or (bb and not cc)) + X[14]+$50A28BE6; dd:= (t shl 9) or (t shr (32-9));
t:= cc + ((dd and bb) or (aa and not bb)) + X[ 7]+$50A28BE6; cc:= (t shl 9) or (t shr (32-9));
t:= bb + ((cc and aa) or (dd and not aa)) + X[ 0]+$50A28BE6; bb:= (t shl 11) or (t shr (32-11));
t:= aa + ((bb and dd) or (cc and not dd)) + X[ 9]+$50A28BE6; aa:= (t shl 13) or (t shr (32-13));
t:= dd + ((aa and cc) or (bb and not cc)) + X[ 2]+$50A28BE6; dd:= (t shl 15) or (t shr (32-15));
t:= cc + ((dd and bb) or (aa and not bb)) + X[11]+$50A28BE6; cc:= (t shl 15) or (t shr (32-15));
t:= bb + ((cc and aa) or (dd and not aa)) + X[ 4]+$50A28BE6; bb:= (t shl 5) or (t shr (32-5));
t:= aa + ((bb and dd) or (cc and not dd)) + X[13]+$50A28BE6; aa:= (t shl 7) or (t shr (32-7));
t:= dd + ((aa and cc) or (bb and not cc)) + X[ 6]+$50A28BE6; dd:= (t shl 7) or (t shr (32-7));
t:= cc + ((dd and bb) or (aa and not bb)) + X[15]+$50A28BE6; cc:= (t shl 8) or (t shr (32-8));
t:= bb + ((cc and aa) or (dd and not aa)) + X[ 8]+$50A28BE6; bb:= (t shl 11) or (t shr (32-11));
t:= aa + ((bb and dd) or (cc and not dd)) + X[ 1]+$50A28BE6; aa:= (t shl 14) or (t shr (32-14));
t:= dd + ((aa and cc) or (bb and not cc)) + X[10]+$50A28BE6; dd:= (t shl 14) or (t shr (32-14));
t:= cc + ((dd and bb) or (aa and not bb)) + X[ 3]+$50A28BE6; cc:= (t shl 12) or (t shr (32-12));
t:= bb + ((cc and aa) or (dd and not aa)) + X[12]+$50A28BE6; bb:= (t shl 6) or (t shr (32-6));
t:= aa + ((bb or not cc) xor dd) + X[ 6]+$5C4DD124; aa:= (t shl 9) or (t shr (32-9));
t:= dd + ((aa or not bb) xor cc) + X[11]+$5C4DD124; dd:= (t shl 13) or (t shr (32-13));
t:= cc + ((dd or not aa) xor bb) + X[ 3]+$5C4DD124; cc:= (t shl 15) or (t shr (32-15));
t:= bb + ((cc or not dd) xor aa) + X[ 7]+$5C4DD124; bb:= (t shl 7) or (t shr (32-7));
t:= aa + ((bb or not cc) xor dd) + X[ 0]+$5C4DD124; aa:= (t shl 12) or (t shr (32-12));
t:= dd + ((aa or not bb) xor cc) + X[13]+$5C4DD124; dd:= (t shl 8) or (t shr (32-8));
t:= cc + ((dd or not aa) xor bb) + X[ 5]+$5C4DD124; cc:= (t shl 9) or (t shr (32-9));
t:= bb + ((cc or not dd) xor aa) + X[10]+$5C4DD124; bb:= (t shl 11) or (t shr (32-11));
t:= aa + ((bb or not cc) xor dd) + X[14]+$5C4DD124; aa:= (t shl 7) or (t shr (32-7));
t:= dd + ((aa or not bb) xor cc) + X[15]+$5C4DD124; dd:= (t shl 7) or (t shr (32-7));
t:= cc + ((dd or not aa) xor bb) + X[ 8]+$5C4DD124; cc:= (t shl 12) or (t shr (32-12));
t:= bb + ((cc or not dd) xor aa) + X[12]+$5C4DD124; bb:= (t shl 7) or (t shr (32-7));
t:= aa + ((bb or not cc) xor dd) + X[ 4]+$5C4DD124; aa:= (t shl 6) or (t shr (32-6));
t:= dd + ((aa or not bb) xor cc) + X[ 9]+$5C4DD124; dd:= (t shl 15) or (t shr (32-15));
t:= cc + ((dd or not aa) xor bb) + X[ 1]+$5C4DD124; cc:= (t shl 13) or (t shr (32-13));
t:= bb + ((cc or not dd) xor aa) + X[ 2]+$5C4DD124; bb:= (t shl 11) or (t shr (32-11));
t:= aa + ((bb and cc) or (not bb and dd)) + X[15]+$6D703EF3; aa:= (t shl 9) or (t shr (32-9));
t:= dd + ((aa and bb) or (not aa and cc)) + X[ 5]+$6D703EF3; dd:= (t shl 7) or (t shr (32-7));
t:= cc + ((dd and aa) or (not dd and bb)) + X[ 1]+$6D703EF3; cc:= (t shl 15) or (t shr (32-15));
t:= bb + ((cc and dd) or (not cc and aa)) + X[ 3]+$6D703EF3; bb:= (t shl 11) or (t shr (32-11));
t:= aa + ((bb and cc) or (not bb and dd)) + X[ 7]+$6D703EF3; aa:= (t shl 8) or (t shr (32-8));
t:= dd + ((aa and bb) or (not aa and cc)) + X[14]+$6D703EF3; dd:= (t shl 6) or (t shr (32-6));
t:= cc + ((dd and aa) or (not dd and bb)) + X[ 6]+$6D703EF3; cc:= (t shl 6) or (t shr (32-6));
t:= bb + ((cc and dd) or (not cc and aa)) + X[ 9]+$6D703EF3; bb:= (t shl 14) or (t shr (32-14));
t:= aa + ((bb and cc) or (not bb and dd)) + X[11]+$6D703EF3; aa:= (t shl 12) or (t shr (32-12));
t:= dd + ((aa and bb) or (not aa and cc)) + X[ 8]+$6D703EF3; dd:= (t shl 13) or (t shr (32-13));
t:= cc + ((dd and aa) or (not dd and bb)) + X[12]+$6D703EF3; cc:= (t shl 5) or (t shr (32-5));
t:= bb + ((cc and dd) or (not cc and aa)) + X[ 2]+$6D703EF3; bb:= (t shl 14) or (t shr (32-14));
t:= aa + ((bb and cc) or (not bb and dd)) + X[10]+$6D703EF3; aa:= (t shl 13) or (t shr (32-13));
t:= dd + ((aa and bb) or (not aa and cc)) + X[ 0]+$6D703EF3; dd:= (t shl 13) or (t shr (32-13));
t:= cc + ((dd and aa) or (not dd and bb)) + X[ 4]+$6D703EF3; cc:= (t shl 7) or (t shr (32-7));
t:= bb + ((cc and dd) or (not cc and aa)) + X[13]+$6D703EF3; bb:= (t shl 5) or (t shr (32-5));
t:= aa + (bb xor cc xor dd) + X[ 8]; aa:= (t shl 15) or (t shr (32-15));
t:= dd + (aa xor bb xor cc) + X[ 6]; dd:= (t shl 5) or (t shr (32-5));
t:= cc + (dd xor aa xor bb) + X[ 4]; cc:= (t shl 8) or (t shr (32-8));
t:= bb + (cc xor dd xor aa) + X[ 1]; bb:= (t shl 11) or (t shr (32-11));
t:= aa + (bb xor cc xor dd) + X[ 3]; aa:= (t shl 14) or (t shr (32-14));
t:= dd + (aa xor bb xor cc) + X[11]; dd:= (t shl 14) or (t shr (32-14));
t:= cc + (dd xor aa xor bb) + X[15]; cc:= (t shl 6) or (t shr (32-6));
t:= bb + (cc xor dd xor aa) + X[ 0]; bb:= (t shl 14) or (t shr (32-14));
t:= aa + (bb xor cc xor dd) + X[ 5]; aa:= (t shl 6) or (t shr (32-6));
t:= dd + (aa xor bb xor cc) + X[12]; dd:= (t shl 9) or (t shr (32-9));
t:= cc + (dd xor aa xor bb) + X[ 2]; cc:= (t shl 12) or (t shr (32-12));
t:= bb + (cc xor dd xor aa) + X[13]; bb:= (t shl 9) or (t shr (32-9));
t:= aa + (bb xor cc xor dd) + X[ 9]; aa:= (t shl 12) or (t shr (32-12));
t:= dd + (aa xor bb xor cc) + X[ 7]; dd:= (t shl 5) or (t shr (32-5));
t:= cc + (dd xor aa xor bb) + X[10]; cc:= (t shl 15) or (t shr (32-15));
t:= bb + (cc xor dd xor aa) + X[14]; bb:= (t shl 8) or (t shr (32-8));
Inc(dd,c + CurrentHash[1]);
CurrentHash[1]:= CurrentHash[2] + d + aa;
CurrentHash[2]:= CurrentHash[3] + a + bb;
CurrentHash[3]:= CurrentHash[0] + b + cc;
CurrentHash[0]:= dd;
FillChar(X,Sizeof(X),0);
Index:= 0;
FillChar(HashBuffer,Sizeof(HashBuffer),0);
end;
class function TDCP_ripemd128.GetHashSize: integer;
begin
Result:= 128;
end;
class function TDCP_ripemd128.GetId: integer;
begin
Result:= DCP_ripemd128;
end;
class function TDCP_ripemd128.GetAlgorithm: string;
begin
Result:= 'RipeMD-128';
end;
class function TDCP_ripemd128.SelfTest: boolean;
const
Test1Out: array[0..15] of byte=
($86,$be,$7a,$fa,$33,$9d,$0f,$c7,$cf,$c7,$85,$e7,$2f,$57,$8d,$33);
Test2Out: array[0..15] of byte=
($fd,$2a,$a6,$07,$f7,$1d,$c8,$f5,$10,$71,$49,$22,$b3,$71,$83,$4e);
var
TestHash: TDCP_ripemd128;
TestOut: array[0..15] of byte;
begin
dcpFillChar(TestOut, SizeOf(TestOut), 0);
TestHash:= TDCP_ripemd128.Create(nil);
TestHash.Init;
TestHash.UpdateStr('a');
TestHash.Final(TestOut);
Result:= CompareMem(@TestOut,@Test1Out,Sizeof(Test1Out));
TestHash.Init;
TestHash.UpdateStr('abcdefghijklmnopqrstuvwxyz');
TestHash.Final(TestOut);
Result:= CompareMem(@TestOut,@Test2Out,Sizeof(Test2Out)) and Result;
TestHash.Free;
end;
procedure TDCP_ripemd128.Init;
begin
Burn;
CurrentHash[0]:= $67452301;
CurrentHash[1]:= $efcdab89;
CurrentHash[2]:= $98badcfe;
CurrentHash[3]:= $10325476;
fInitialized:= true;
end;
procedure TDCP_ripemd128.Burn;
begin
LenHi:= 0; LenLo:= 0;
Index:= 0;
FillChar(HashBuffer,Sizeof(HashBuffer),0);
FillChar(CurrentHash,Sizeof(CurrentHash),0);
fInitialized:= false;
end;
procedure TDCP_ripemd128.Update(const Buffer; Size: longword);
var
PBuf: ^byte;
begin
if not fInitialized then
raise EDCP_hash.Create('Hash not initialized');
Inc(LenHi,Size shr 29);
Inc(LenLo,Size*8);
if LenLo< (Size*8) then
Inc(LenHi);
PBuf:= @Buffer;
while Size> 0 do
begin
if (Sizeof(HashBuffer)-Index)<= DWord(Size) then
begin
Move(PBuf^,HashBuffer[Index],Sizeof(HashBuffer)-Index);
Dec(Size,Sizeof(HashBuffer)-Index);
Inc(PBuf,Sizeof(HashBuffer)-Index);
Compress;
end
else
begin
Move(PBuf^,HashBuffer[Index],Size);
Inc(Index,Size);
Size:= 0;
end;
end;
end;
procedure TDCP_ripemd128.Final(var Digest);
begin
if not fInitialized then
raise EDCP_hash.Create('Hash not initialized');
HashBuffer[Index]:= $80;
if Index>= 56 then
Compress;
PDWord(@HashBuffer[56])^:= LenLo;
PDWord(@HashBuffer[60])^:= LenHi;
Compress;
Move(CurrentHash,Digest,Sizeof(CurrentHash));
Burn;
end;
end.
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