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MD5 in Delphi 7?

Artic

By Artic
in Programming and Coding

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Artic

Artic

Posted
Posted (edited)

hey there,


 


i am trying to write a keygen in Delphi 7.


my problem is that i cant figure out how to make a MD5 in the keygen.


do i need to write it by hand or are there some pre-made code parts somewhere?

Edited by Artic
Artic

Artic

Posted
  • Author
Posted

dont want to open a new topic for this, but are there some tutorials about how to write a keygen with delphi?

kao

kao

Posted
Posted

Don't want to sound mean, but there is no real difference if you're writing keygen in Delphi, C++ or C#. You figure out the key generating algorithm, implement it in the language of your choice, make sure it works and then add some eye candy to your "product". In some languages it's harder to use inline assembler or certain libraries, but the overall differences are real small.


 


Maybe this topic will help you: old-keygen-sources-in-delphi. 


  • Like 2
Artic

Artic

Posted
  • Author
Posted

you never sound mean. i guess i need to do some basic delphing and then try to get a working keygen.


i know the whole tutorial asking sucks, but as i had clicked on post i saw that i wrote it. nvm i will keep going.


Nucleus

Nucleus

Posted
Posted

try to find pnta's tutorials collection that he posted on black storm and here I think.

  • Like 1
Artic

Artic

Posted
  • Author
Posted

try to find pnta's tutorials collection that he posted on black storm and here I think.

can you help me to find the link?

 

thanks everybody! Love you! x (no homo) lol

Nucleus

Nucleus

Posted
Posted

Delphi source code that uses MD5:

Created by Levis/REPT

up.ht/T4DsrM

  • Like 1
DarkCode

DarkCode

Posted
Posted (edited)

Hi 


in simple way


 


in uses add MD5


 


uses


MD5;


 


Note: don't forget to add MD5 library to project folder.


 


To get MD5 hash .


 


on the Button you create double click then add code .


 


var


H : String;


begin


         H := MD5Print(MD5String('Artic'));  // GetMd5 and store in H


         Edt1.text := H;                                         // Display MD5 Value @ TextBox


end;


 


BR


 


Esso_x


Edited by DarkCode
  • Like 1
Nucleus

Nucleus

Posted
Posted

@Esso x (DarkCode) Can you make an AT4RE forum rip with all tutorials, sources and tools?

  • 2 weeks later...
X-88

X-88

Posted
Posted (edited)

Old Keygen Tutorial in Delphi, by: Acid Burn Please Visit




*********************SOURCES DELPHI************************
procedure TForm1.Edit1Change(Sender: TObject);
var i,ascii,result: integer;
begin

	for i:=1 to length(edit1.text) do

begin
ascii:=ascii + ord(edit1.text[i]);

end;
asm

    mov eax,ascii

    mov ecx,ascii

    shl eax,7

    add eax,ecx

    mov ascii,eax

end;
result:=ascii;

edit2.text:=inttostr(result);

end;

end.

Unit MD5




{*******************************************************}

{                                                       }

{            Delphi Visual Component Library            }

{                                                       }

{ Copyright(c) 1995-2010 Embarcadero Technologies, Inc. }

{                                                       }

{       Message-digest algorithm based on C sample      }

{       provided in Appendix section of                 }

{          Rivest-MD5.TXT available at:                 }

{     http://theory.lcs.mit.edu/~rivest/Rivest-MD5.txt }

{                                                       }

{*******************************************************}

unit MD5;
interface
uses Types;
type
  IMD5 = interface

  ['{887C9EF0-15B9-41B4-A403-0431793B6E41}']

    procedure   Init;

    procedure   Update(const Input: TByteDynArray; Len: Longword); overload;

    procedure   Update(const Input: string); overload;

    function    Final: TByteDynArray;

    function    AsString: string;

    function    AsGUID: string;

  end;
function GetMD5: IMD5;
implementation
const

  S11 =  7;

  S12 = 12;

  S13 = 17;

  S14 = 22;
  S21 =  5;

  S22 =  9;

  S23 = 14;

  S24 = 20;
  S31 =  4;

  S32 = 11;

  S33 = 16;

  S34 = 23;
  S41 =  6;

  S42 = 10;

  S43 = 15;

  S44 = 21;
var

  padding: TByteDynArray;
type
  ArrayOfLWord= array of Longword;
  TMD5 = class(TInterfacedObject, IMD5)

  private

    FContextState: ArrayOfLWord;

    FContextCount: ArrayOfLWord;

    FContextBuffer: TByteDynArray;

  public

    constructor Create;

    procedure   Init; virtual;

    procedure   Update(const Input: TByteDynArray; Len: Longword); overload; virtual;

    procedure   Update(const Input: string); overload; virtual;

    function    Final: TByteDynArray; virtual;

    procedure   Transform(const block: TByteDynArray; shift: Integer);

    procedure   Decode(var Dst: ArrayOfLWord; const Src: TByteDynArray; Len: Integer; shift: Integer);

    procedure   Encode(var Dst: TByteDynArray; const Src: ArrayOfLWord; Len: Integer);

    function    AsString: string;

    function    AsGUID: string;

  end;
function GetMD5: IMD5;

begin

  Result := TMD5.Create;

end;
constructor TMD5.Create;

begin

  inherited Create;

  Init;

end;
procedure TMD5.Init;

begin

  SetLength(FContextCount, 2);

  FContextCount[0] := 0;

  FContextCount[1] := 0;

  SetLength(FContextState, 4);

  FContextState[0] := $67452301;

  FContextState[1] := $efcdab89;

  FContextState[2] := $98badcfe;

  FContextState[3] := $10325476;

  SetLength(FContextBuffer, 64);

end;
procedure TMD5.Update(const Input: string);

var

{$IFDEF UNICODE}

  utf8Str: UTF8String;

{$ENDIF}

  Bytes: TByteDynArray;

  Len: Integer;

  Str: PAnsiChar;

begin

{$IFDEF UNICODE}

  utf8Str := UTF8Encode(Input);

  Len := Length(utf8Str);

{$ELSE}

  Len := Length(Input);

{$ENDIF}

  if Len > 0 then

  begin

    SetLength(Bytes, Len);

{$IFDEF UNICODE}

    Str := PAnsiChar(utf8Str);

{$ELSE}

    Str := PAnsiChar(Input);

{$ENDIF}

    Move(Str^, Pointer(Bytes)^, Len);

    Update(Bytes, Len);

  end;

end;
procedure TMD5.Update(const Input: TByteDynArray; Len: Longword);

var

  index, partlen, I, start: Longword;

begin

  { Compute number of bytes mod 64 }

  index := (FContextCount[0] shr 3) and $3f;

  { Update number of bits }

  Inc(FContextCount[0], Len shl 3);

  if (FContextCount[0] < (Len shl 3)) then

    Inc(FContextCount[1]);

  Inc(FContextCount[1], Len shr 29);

  partlen := 64 - index;
  { Transform (as many times as possible) }

  if Len >= partLen then

  begin

    for I := 0 to partLen-1 do

      FContextBuffer[I+index] := Input[I];
    Transform(FContextBuffer, 0);

    I := partLen;

    while (I + 63) < Len do

    begin

      Transform(Input, I);

      Inc(I, 64);

    end;

    index := 0;

  end

  else

    I := 0;
  { Input remaining input }

  if (I < Len) then

  begin

    start := I;

    while (I < Len) do

    begin

      FContextBuffer[index+I-start] := Input[I];

      Inc(I);

    end;

  end;

end;
function TMD5.Final: TByteDynArray;

var

  bits: TByteDynArray;

  index, padlen: Integer;

begin

  { Save number of bits }

  Encode(bits, FContextCount, 8);

  { Pad out to 56 mod 64 }

  index := (FContextCount[0] shr 3) and $3f;

  if index < 56 then

    padlen := 56 - index

  else

    padlen := 120- index;
  Update(padding, padLen);

  { Append length (before padding) }

  Update(bits, 8);

  { Store state in digest }

  Encode(Result, FContextState, 16);

end;
function TMD5.AsString: string;

const

  XD: array[0..15] of char = ('0', '1', '2', '3', '4', '5', '6', '7',

                              '8', '9', 'A', 'B', 'C', 'D', 'E', 'F');

var

  digest: TByteDynArray;

  I: Integer;

begin

  Result := '';

  digest := Final;

  for I := 0 to Length(digest)-1 do

    Result := Result + XD[(digest[I] shr 4) and $0f] +

                       XD[digest[I] and $0f];

end;
function TMD5.AsGUID: string;

const

  XD: array[0..15] of char = ('0', '1', '2', '3', '4', '5', '6', '7',

                              '8', '9', 'A', 'B', 'C', 'D', 'E', 'F');

var

  digest: TByteDynArray;

  I: Integer;

begin

  Result := '';

  digest := Final;

  for I := 0 to Length(digest)-1 do

  begin

    case I of

      0:            Result := Result + '{';

      4, 6, 8, 10:  Result := Result + '-';

    end;

    Result := Result + XD[(digest[I] shr 4) and $0f] +

                       XD[digest[I] and $0f];

    if I = 15 then

      Result := Result + '}';

  end;

end;
procedure TMD5.Transform(const block: TByteDynArray; shift: Integer);
  function F(x, y, z: Longword): Longword;

  begin

    Result := (x and y) or ((not x) and z);

  end;
  function G(x, y, z: Longword): Longword;

  begin

    Result := (x and z) or (y and (not z));

  end;
  function H(x, y, z: Longword): Longword;

  begin

    Result := x xor y xor z;

  end;
  function I(x, y, z: Longword): Longword;

  begin

    Result := y xor (x or (not z));

  end;
  procedure RL(var x: Longword; n: Byte);

  begin

    x := (x shl n) or (x shr (32 - n));

  end;
  procedure FF(var a: Longword; b, c, d, x: Longword; s: Byte; ac: Longword);

  begin

    Inc(a, F(b, c, d) + x + ac);

    RL(a, s);

    Inc(a, ;

  end;
  procedure GG(var a: Longword; b, c, d, x: Longword; s: Byte; ac: Longword);

  begin

    Inc(a, G(b, c, d) + x + ac);

    RL(a, s);

    Inc(a, ;

  end;
  procedure HH(var a: Longword; b, c, d, x: Longword; s: Byte; ac: Longword);

  begin

    Inc(a, H(b, c, d) + x + ac);

    RL(a, s);

    Inc(a, ;

  end;
  procedure II(var a: Longword; b, c, d, x: Longword; s: Byte; ac: Longword);

  begin

    Inc(a, I(b, c, d) + x + ac);

    RL(a, s);

    Inc(a, ;

  end;
var

  a, b, c, d: Longword;

  x: ArrayOfLWord;
begin

  a := FContextState[0];

  b := FContextState[1];

  c := FContextState[2];

  d := FContextState[3];
  Decode(x, block, 64, shift);
  { Round 1 }

  FF( a, b, c, d, x[ 0], S11, $d76aa478); { 1 }

  FF( d, a, b, c, x[ 1], S12, $e8c7b756); { 2 }

  FF( c, d, a, b, x[ 2], S13, $242070db); { 3 }

  FF( b, c, d, a, x[ 3], S14, $c1bdceee); { 4 }

  FF( a, b, c, d, x[ 4], S11, $f57c0faf); { 5 }

  FF( d, a, b, c, x[ 5], S12, $4787c62a); { 6 }

  FF( c, d, a, b, x[ 6], S13, $a8304613); { 7 }

  FF( b, c, d, a, x[ 7], S14, $fd469501); { 8 }

  FF( a, b, c, d, x[ 8], S11, $698098d8); { 9 }

  FF( d, a, b, c, x[ 9], S12, $8b44f7af); { 10 }

  FF( c, d, a, b, x[10], S13, $ffff5bb1); { 11 }

  FF( b, c, d, a, x[11], S14, $895cd7be); { 12 }

  FF( a, b, c, d, x[12], S11, $6b901122); { 13 }

  FF( d, a, b, c, x[13], S12, $fd987193); { 14 }

  FF( c, d, a, b, x[14], S13, $a679438e); { 15 }

  FF( b, c, d, a, x[15], S14, $49b40821); { 16 }
  { Round 2 }

  GG( a, b, c, d, x[ 1], S21, $f61e2562); { 17 }

  GG( d, a, b, c, x[ 6], S22, $c040b340); { 18 }

  GG( c, d, a, b, x[11], S23, $265e5a51); { 19 }

  GG( b, c, d, a, x[ 0], S24, $e9b6c7aa); { 20 }

  GG( a, b, c, d, x[ 5], S21, $d62f105d); { 21 }

  GG( d, a, b, c, x[10], S22,  $2441453); { 22 }

  GG( c, d, a, b, x[15], S23, $d8a1e681); { 23 }

  GG( b, c, d, a, x[ 4], S24, $e7d3fbc8); { 24 }

  GG( a, b, c, d, x[ 9], S21, $21e1cde6); { 25 }

  GG( d, a, b, c, x[14], S22, $c33707d6); { 26 }

  GG( c, d, a, b, x[ 3], S23, $f4d50d87); { 27 }

  GG( b, c, d, a, x[ 8], S24, $455a14ed); { 28 }

  GG( a, b, c, d, x[13], S21, $a9e3e905); { 29 }

  GG( d, a, b, c, x[ 2], S22, $fcefa3f8); { 30 }

  GG( c, d, a, b, x[ 7], S23, $676f02d9); { 31 }

  GG( b, c, d, a, x[12], S24, $8d2a4c8a); { 32 }
  { Round 3 }

  HH( a, b, c, d, x[ 5], S31, $fffa3942); { 33 }

  HH( d, a, b, c, x[ 8], S32, $8771f681); { 34 }

  HH( c, d, a, b, x[11], S33, $6d9d6122); { 35 }

  HH( b, c, d, a, x[14], S34, $fde5380c); { 36 }

  HH( a, b, c, d, x[ 1], S31, $a4beea44); { 37 }

  HH( d, a, b, c, x[ 4], S32, $4bdecfa9); { 38 }

  HH( c, d, a, b, x[ 7], S33, $f6bb4b60); { 39 }

  HH( b, c, d, a, x[10], S34, $bebfbc70); { 40 }

  HH( a, b, c, d, x[13], S31, $289b7ec6); { 41 }

  HH( d, a, b, c, x[ 0], S32, $eaa127fa); { 42 }

  HH( c, d, a, b, x[ 3], S33, $d4ef3085); { 43 }

  HH( b, c, d, a, x[ 6], S34,  $4881d05); { 44 }

  HH( a, b, c, d, x[ 9], S31, $d9d4d039); { 45 }

  HH( d, a, b, c, x[12], S32, $e6db99e5); { 46 }

  HH( c, d, a, b, x[15], S33, $1fa27cf8); { 47 }

  HH( b, c, d, a, x[ 2], S34, $c4ac5665); { 48 }
  { Round 4 }

  II( a, b, c, d, x[ 0], S41, $f4292244); { 49 }

  II( d, a, b, c, x[ 7], S42, $432aff97); { 50 }

  II( c, d, a, b, x[14], S43, $ab9423a7); { 51 }

  II( b, c, d, a, x[ 5], S44, $fc93a039); { 52 }

  II( a, b, c, d, x[12], S41, $655b59c3); { 53 }

  II( d, a, b, c, x[ 3], S42, $8f0ccc92); { 54 }

  II( c, d, a, b, x[10], S43, $ffeff47d); { 55 }

  II( b, c, d, a, x[ 1], S44, $85845dd1); { 56 }

  II( a, b, c, d, x[ 8], S41, $6fa87e4f); { 57 }

  II( d, a, b, c, x[15], S42, $fe2ce6e0); { 58 }

  II( c, d, a, b, x[ 6], S43, $a3014314); { 59 }

  II( b, c, d, a, x[13], S44, $4e0811a1); { 60 }

  II( a, b, c, d, x[ 4], S41, $f7537e82); { 61 }

  II( d, a, b, c, x[11], S42, $bd3af235); { 62 }

  II( c, d, a, b, x[ 2], S43, $2ad7d2bb); { 63 }

  II( b, c, d, a, x[ 9], S44, $eb86d391); { 64 }
  Inc(FContextState[0], a);

  Inc(FContextState[1], ;

  Inc(FContextState[2], c);

  Inc(FContextState[3], d);

end;
procedure TMD5.Encode(var Dst: TByteDynArray; const Src: ArrayOfLWord; Len: Integer);

var

  i, j: Integer;

begin

  i := 0;

  j := 0;

  SetLength(Dst, Len);

  while (j < Len) do

  begin

    Dst[j]  := Byte((Src[i] and $ff));

    Dst[j+1]:= Byte((Src[i] shr 8)  and $ff);

    Dst[j+2]:= Byte((Src[i] shr 16) and $ff);

    Dst[J+3]:= Byte((Src[i] shr 24) and $ff);

    Inc(j, 4);

    Inc(i);

  end;

end;

procedure TMD5.Decode(var Dst: ArrayOfLWord; const Src: TByteDynArray; Len: Integer; shift: Integer);

var

  I, J: Integer;

  a, b, c, d: Byte;

begin

  J := 0;

  I := 0;

  SetLength(Dst, 16);

  while (J < Len) do

  begin

    a := Src[J+shift];

    b := Src[J+shift+1];

    c := Src[J+shift+2];

    d := Src[J+shift+3];

    Dst[I] :=Longword(a and $ff)         or

            (Longword(b and $ff) shl 8)  or

            (Longword(c and $ff) shl 16) or

            (Longword(d and $ff) shl 24);

    Inc(J, 4);

    Inc(I);

  end;

end;
initialization

  SetLength(padding, 64);

  padding[0] := $80;
{

MD5 test suite:

MD5 ("") = d41d8cd98f00b204e9800998ecf8427e

MD5 ("a") = 0cc175b9c0f1b6a831c399e269772661

MD5 ("abc") = 900150983cd24fb0d6963f7d28e17f72

MD5 ("message digest") = f96b697d7cb7938d525a2f31aaf161d0

MD5 ("abcdefghijklmnopqrstuvwxyz") = c3fcd3d76192e4007dfb496cca67e13b

MD5 ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789") =

d174ab98d277d9f5a5611c2c9f419d9f

MD5 ("123456789012345678901234567890123456789012345678901234567890123456

78901234567890") = 57edf4a22be3c955ac49da2e2107b67a

}
end.
Edited by X-88

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