软件注册的实现 delphi 源码

原理：通过获取本机的硬盘CPU的序列号，合成为一个40位的机器码，然后再进行MD5编码得到机器码：

下面是main.pas的代码：

unit main;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, Buttons, ExtCtrls;

type
TForm1 = class(TForm)
    Panel1: TPanel;
    BitBtn1: TBitBtn;
    BitBtn2: TBitBtn;
    Label1: TLabel;
    Label2: TLabel;
    Edit1: TEdit;
    Edit2: TEdit;
    procedure Edit1DblClick(Sender: TObject);
    procedure BitBtn1Click(Sender: TObject);
private
    { Private declarations }
public
    { Public declarations }
end;

var
Form1: TForm1;

implementation

uses Amd5;

{$R *.dfm}
//=========
type
TCPUID = array[1..4] of Longint;
TVendor = array [0..11] of char;

function GetCPUID : TCPUID; assembler; register;
asm
PUSH    EBX         {Save affected register}
PUSH    EDI
MOV     EDI,EAX     {@Resukt}
MOV     EAX,1
DW      $A20F       {CPUID Command}
STOSD               {CPUID[1]}
MOV     EAX,EBX
STOSD               {CPUID[2]}
MOV     EAX,ECX
STOSD               {CPUID[3]}
MOV     EAX,EDX
STOSD               {CPUID[4]}
POP     EDI         {Restore registers}
POP     EBX
end;

function GetCPUVendor : TVendor; assembler; register;
asm
PUSH    EBX               {Save affected register}
PUSH    EDI
MOV     EDI,EAX           {@Result (TVendor)}
MOV     EAX,0
DW      $A20F             {CPUID Command}
MOV     EAX,EBX
XCHG          EBX,ECX     {save ECX result}
MOV                   ECX,4
@1:
STOSB
SHR     EAX,8
LOOP    @1
MOV     EAX,EDX
MOV                   ECX,4
@2:
STOSB
SHR     EAX,8
LOOP    @2
MOV     EAX,EBX
MOV                   ECX,4
@3:
STOSB
SHR     EAX,8
LOOP    @3
POP     EDI              {Restore registers}
POP     EBX
end;

//获得硬盘序列号
function GetIdeSerialNumber: pchar;
const IDENTIFY_BUFFER_SIZE = 512;
type
   TIDERegs = packed record
     bFeaturesReg: BYTE;
     bSectorCountReg: BYTE;
     bSectorNumberReg: BYTE;
     bCylLowReg: BYTE;
     bCylHighReg: BYTE;
     bDriveHeadReg: BYTE;
     bCommandReg: BYTE;
     bReserved: BYTE;
end;
TSendCmdInParams = packed record
    cBufferSize: DWORD;
    irDriveRegs: TIDERegs;
    bDriveNumber: BYTE;
    bReserved: array[0..2] of Byte;
    dwReserved: array[0..3] of DWORD;
    bBuffer: array[0..0] of Byte; // Input buffer.
end;
TIdSector = packed record
    wGenConfig: Word;
    wNumCyls: Word;
    wReserved: Word;
    wNumHeads: Word;
    wBytesPerTrack: Word;
    wBytesPerSector: Word;
    wSectorsPerTrack: Word;
    wVendorUnique: array[0..2] of Word;
    sSerialNumber: array[0..19] of CHAR;
    wBufferType: Word;
    wBufferSize: Word;
    wECCSize: Word;
    sFirmwareRev: array[0..7] of Char;
    sModelNumber: array[0..39] of Char;
    wMoreVendorUnique: Word;
    wDoubleWordIO: Word;
    wCapabilities: Word;
    wReserved1: Word;
    wPIOTiming: Word;
    wDMATiming: Word;
    wBS: Word;
    wNumCurrentCyls: Word;
    wNumCurrentHeads: Word;
    wNumCurrentSectorsPerTrack: Word;
    ulCurrentSectorCapacity: DWORD;
    wMultSectorStuff: Word;
    ulTotalAddressableSectors: DWORD;
    wSingleWordDMA: Word;
    wMultiWordDMA: Word;
    bReserved: array[0..127] of BYTE;
end;
PIdSector = ^TIdSector;
TDriverStatus = packed record
    bDriverError: Byte;
    bIDEStatus: Byte;
    bReserved: array[0..1] of Byte;
    dwReserved: array[0..1] of DWORD;
end;
TSendCmdOutParams = packed record
    cBufferSize: DWORD;
    DriverStatus: TDriverStatus;
    bBuffer: array[0..0] of BYTE;
end;
var
hDevice: Thandle;
cbBytesReturned: DWORD;
SCIP: TSendCmdInParams;
aIdOutCmd: array[0..(SizeOf(TSendCmdOutParams) + IDENTIFY_BUFFER_SIZE - 1) - 1] of Byte;
IdOutCmd: TSendCmdOutParams absolute aIdOutCmd;
procedure ChangeByteOrder(var Data; Size: Integer);
var
ptr: Pchar;
i: Integer;
c: Char;
begin
ptr := @Data;
for I := 0 to (Size shr 1) - 1 do begin
    c := ptr^;
    ptr^ := (ptr + 1)^;
    (ptr + 1)^ := c;
    Inc(ptr, 2);
end;
end;
begin
Result := '';
if SysUtils.Win32Platform = VER_PLATFORM_WIN32_NT then begin
hDevice := CreateFile('//./PhysicalDrive0', GENERIC_READ or GENERIC_WRITE,
FILE_SHARE_READ or FILE_SHARE_WRITE, nil, OPEN_EXISTING, 0, 0);
end else
hDevice := CreateFile('//./SMARTVSD', 0, 0, nil, CREATE_NEW, 0, 0);
if hDevice = INVALID_HANDLE_VALUE then Exit;
try
FillChar(SCIP, SizeOf(TSendCmdInParams) - 1, #0);
FillChar(aIdOutCmd, SizeOf(aIdOutCmd), #0);
cbBytesReturned := 0;
with SCIP do begin
cBufferSize := IDENTIFY_BUFFER_SIZE;
with irDriveRegs do begin
bSectorCountReg := 1;
bSectorNumberReg := 1;
bDriveHeadReg := $A0;
bCommandReg := $EC;
end;
end;
if not DeviceIoControl(hDevice, $0007C088, @SCIP, SizeOf(TSendCmdInParams) - 1,
@aIdOutCmd, SizeOf(aIdOutCmd), cbBytesReturned, nil) then Exit;
finally
CloseHandle(hDevice);
end;
with PIdSector(@IdOutCmd.bBuffer)^ do begin
ChangeByteOrder(sSerialNumber, SizeOf(sSerialNumber));
(Pchar(@sSerialNumber) + SizeOf(sSerialNumber))^ := #0;
Result := Pchar(@sSerialNumber);
end;
end;
function GetCode():string;//提取机器码。
var
CPUID:TCPUID;
i:Integer;
s1,s2,s3,s4,s5:string;
RegCode:string;
begin
      for i:=Low(CPUID) to High(CPUID) do CPUID[i]:=-1;
      CPUID:=GetCPUID;
      s1:=IntToHex(CPUID[1],8);
      s2:=IntToHex(CPUID[2],8);
      s3:=IntToHex(CPUID[3],8);
      s4:=IntToHex(CPUID[4],8);
      s5:=trim(strpas(GetIdeSerialNumber));
      RegCode:=copy(s2,1,4)+copy(s5,5,4)+copy(s3,1,4)+copy(s1,1,4)+copy(s4,5,4)+copy(s5,1,4)+copy(s4,1,4)+copy(s1,5,4)+copy(s3,5,4)+copy(s2,5,4);
      GetCode:=RegCode;
end;

procedure TForm1.Edit1DblClick(Sender: TObject);
begin
Edit1.Text:=GetCode();
end;

procedure TForm1.BitBtn1Click(Sender: TObject);
begin
   if Length(Edit1.Text)<>40 then
   begin
     ShowMessage('机器码应该是一个长度为40的字符串！');
     Abort;
   end;
   edit2.Text:=AMD5.sMD5.MD5(edit1.Text);
end;

end.
下面是md5.pas的代码：

unit AMD5;

interface

// 文件名 : AMD5.pas                     //
        //   功能 : 与md5.asp计算结果相同        //
        //   作者 : 由ScriptBaby改编自md5.asp    //
        // 完成时间: 2004-07-21                   //

//请转载者保留以上信息，谢谢//

uses
SysUtils;

type
arrlongword = array of longword;

type
sMD5 = class
    class function RotateLeft(const lValue, Bits: longword): longword;
    class function MD5(const sMessage: string; const sType: boolean = false): string;
    class function ConvToWord(const sMessage: string): arrlongword; overload;
    class function ConvToWord(const sMessage: WideString): arrlongword; overload;
    class function WordToHex(const lValue: longword): string;
end;

implementation

const
BITS_TO_A_BYTE = 8;
BYTES_TO_A_WORD = 4;
BITS_TO_A_WORD = 32;

cAA = $67452301;
cBB = $EFCDAB89;
cCC = $98BADCFE;
cDD = $10325476;

MODULUS_BITS = 512;
CONGRUENT_BITS = 448;

{ sMD5 }

class function sMD5.ConvToWord(const sMessage: WideString): arrlongword;
var
lMessageLength,
lNumberOfWords,
lBytePosition,
lByteCount,
lWordCount: longword;
lWordArray: arrlongword;

{ Function }
function Asc(const t: WideChar): Smallint;
var
    s: string;
    a: Smallint;
begin
     s := t;

a := Smallint(s[1]);
     case Length(s) of
       2:
       begin
         a := a shl 8;
         a := a + Smallint(s[2]);
       end
     else ;
     end;

Result := a;
end;

begin
lMessageLength := Length(sMessage);

lNumberOfWords := (((lMessageLength + ((MODULUS_BITS - CONGRUENT_BITS) div BITS_TO_A_BYTE)) div (MODULUS_BITS div BITS_TO_A_BYTE)) + 1) * (MODULUS_BITS div BITS_TO_A_WORD);

SetLength(lWordArray, lNumberOfWords);

lByteCount := 0;
While lByteCount < lMessageLength do begin
    lWordCount := lByteCount div BYTES_TO_A_WORD;
    lBytePosition := (lByteCount Mod BYTES_TO_A_WORD) * BITS_TO_A_BYTE;
    lWordArray[lWordCount] := lWordArray[lWordCount] Or longword(Asc(sMessage[lByteCount + 1]) shl lBytePosition);
    lByteCount := lByteCount + 1;
end;

lWordCount := lByteCount div BYTES_TO_A_WORD;
lBytePosition := (lByteCount Mod BYTES_TO_A_WORD) * BITS_TO_A_BYTE;

lWordArray[lWordCount] := lWordArray[lWordCount] or ($80 shl lBytePosition);

lWordArray[lNumberOfWords - 2] := lMessageLength shl 3;
lWordArray[lNumberOfWords - 1] := lMessageLength shr 29;

Result := lWordArray;

end;

class function sMD5.ConvToWord(const sMessage: string): arrlongword;
begin
Result := ConvToWord(WideString(sMessage));
end;

class function sMD5.MD5(const sMessage: string;
const sType: boolean = false): string;
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
k: integer;
AA, BB, CC, DD, a, b, c, d: longword;
x: arrlongword;
s: string;

{ functions }

function md5_F(const x, y, z: longword): longword;
begin
Result := (x And y) Or ((Not x) And z);
end;

function md5_G(const x, y, z: longword): longword;
begin
Result := (x And z) Or (y And (Not z));
end;

function md5_H(const x, y, z: longword): longword;
begin
Result := (x Xor y Xor z);
end;

function md5_I(const x, y, z: longword): longword;
begin
Result := (y Xor (x Or (Not z)));
end;

procedure md5_FF(var a: longword; const b, c, d, x, s, ac: longword);
begin
    a := a + md5_F(b, c, d) + x + ac;
    a := RotateLeft(a, s);
    a := a + b;
end;

procedure md5_GG(var a: longword; const b, c, d, x, s, ac: longword);
begin
    a := a + md5_G(b, c, d) + x + ac;
    a := RotateLeft(a, s);
    a := a + b;
end;

procedure md5_HH(var a: longword; const b, c, d, x, s, ac: longword);
begin
    a := a + md5_H(b, c, d) + x + ac;
    a := RotateLeft(a, s);
    a := a + b;
end;

procedure md5_II(var a: longword; const b, c, d, x, s, ac: longword);
begin
    a := a + md5_I(b, c, d) + x + ac;
    a := RotateLeft(a, s);
    a := a + b;
end;

begin

{ MD5 }
x := ConvToWord(sMessage);

a := cAA;
b := cBB;
c := cCC;
d := cDD;

k := 0;
repeat
    AA := a;
    BB := b;
    CC := c;
    DD := d;

md5_FF(a, b, c, d, x[k + 0], S11, $D76AA478);
    md5_FF(d, a, b, c, x[k + 1], S12, $E8C7B756);
    md5_FF(c, d, a, b, x[k + 2], S13, $242070DB);
    md5_FF(b, c, d, a, x[k + 3], S14, $C1BDCEEE);
    md5_FF(a, b, c, d, x[k + 4], S11, $F57C0FAF);
    md5_FF(d, a, b, c, x[k + 5], S12, $4787C62A);
    md5_FF(c, d, a, b, x[k + 6], S13, $A8304613);
    md5_FF(b, c, d, a, x[k + 7], S14, $FD469501);
    md5_FF(a, b, c, d, x[k + 8], S11, $698098D8);
    md5_FF(d, a, b, c, x[k + 9], S12, $8B44F7AF);
    md5_FF(c, d, a, b, x[k + 10], S13, $FFFF5BB1);
    md5_FF(b, c, d, a, x[k + 11], S14, $895CD7BE);
    md5_FF(a, b, c, d, x[k + 12], S11, $6B901122);
    md5_FF(d, a, b, c, x[k + 13], S12, $FD987193);
    md5_FF(c, d, a, b, x[k + 14], S13, $A679438E);
    md5_FF(b, c, d, a, x[k + 15], S14, $49B40821);

md5_GG(a, b, c, d, x[k + 1], S21, $F61E2562);
    md5_GG(d, a, b, c, x[k + 6], S22, $C040B340);
    md5_GG(c, d, a, b, x[k + 11], S23, $265E5A51);
    md5_GG(b, c, d, a, x[k + 0], S24, $E9B6C7AA);
    md5_GG(a, b, c, d, x[k + 5], S21, $D62F105D);
    md5_GG(d, a, b, c, x[k + 10], S22, $2441453);
    md5_GG(c, d, a, b, x[k + 15], S23, $D8A1E681);
    md5_GG(b, c, d, a, x[k + 4], S24, $E7D3FBC8);
    md5_GG(a, b, c, d, x[k + 9], S21, $21E1CDE6);
    md5_GG(d, a, b, c, x[k + 14], S22, $C33707D6);
    md5_GG(c, d, a, b, x[k + 3], S23, $F4D50D87);
    md5_GG(b, c, d, a, x[k + 8], S24, $455A14ED);
    md5_GG(a, b, c, d, x[k + 13], S21, $A9E3E905);
    md5_GG(d, a, b, c, x[k + 2], S22, $FCEFA3F8);
    md5_GG(c, d, a, b, x[k + 7], S23, $676F02D9);
    md5_GG(b, c, d, a, x[k + 12], S24, $8D2A4C8A);

md5_HH(a, b, c, d, x[k + 5], S31, $FFFA3942);
    md5_HH(d, a, b, c, x[k + 8], S32, $8771F681);
    md5_HH(c, d, a, b, x[k + 11], S33, $6D9D6122);
    md5_HH(b, c, d, a, x[k + 14], S34, $FDE5380C);
    md5_HH(a, b, c, d, x[k + 1], S31, $A4BEEA44);
    md5_HH(d, a, b, c, x[k + 4], S32, $4BDECFA9);
    md5_HH(c, d, a, b, x[k + 7], S33, $F6BB4B60);
    md5_HH(b, c, d, a, x[k + 10], S34, $BEBFBC70);
    md5_HH(a, b, c, d, x[k + 13], S31, $289B7EC6);
    md5_HH(d, a, b, c, x[k + 0], S32, $EAA127FA);
    md5_HH(c, d, a, b, x[k + 3], S33, $D4EF3085);
    md5_HH(b, c, d, a, x[k + 6], S34, $4881D05);
    md5_HH(a, b, c, d, x[k + 9], S31, $D9D4D039);
    md5_HH(d, a, b, c, x[k + 12], S32, $E6DB99E5);
    md5_HH(c, d, a, b, x[k + 15], S33, $1FA27CF8);
    md5_HH(b, c, d, a, x[k + 2], S34, $C4AC5665);

md5_II(a, b, c, d, x[k + 0], S41, $F4292244);
    md5_II(d, a, b, c, x[k + 7], S42, $432AFF97);
    md5_II(c, d, a, b, x[k + 14], S43, $AB9423A7);
    md5_II(b, c, d, a, x[k + 5], S44, $FC93A039);
    md5_II(a, b, c, d, x[k + 12], S41, $655B59C3);
    md5_II(d, a, b, c, x[k + 3], S42, $8F0CCC92);
    md5_II(c, d, a, b, x[k + 10], S43, $FFEFF47D);
    md5_II(b, c, d, a, x[k + 1], S44, $85845DD1);
    md5_II(a, b, c, d, x[k + 8], S41, $6FA87E4F);
    md5_II(d, a, b, c, x[k + 15], S42, $FE2CE6E0);
    md5_II(c, d, a, b, x[k + 6], S43, $A3014314);
    md5_II(b, c, d, a, x[k + 13], S44, $4E0811A1);
    md5_II(a, b, c, d, x[k + 4], S41, $F7537E82);
    md5_II(d, a, b, c, x[k + 11], S42, $BD3AF235);
    md5_II(c, d, a, b, x[k + 2], S43, $2AD7D2BB);
    md5_II(b, c, d, a, x[k + 9], S44, $EB86D391);

a := a + AA;
    b := b + BB;
    c := c + CC;
    d := d + DD;

k := k + 16;
until k > High(x);

if sType then
begin
s := WordToHex(a) + WordToHex(b) + WordToHex(c) + WordToHex(d)
end
else
begin
s := WordToHex(b) + WordToHex(c);
end;

Result := StrLower(PAnsiChar(s));
end;

class function sMD5.RotateLeft(const lValue, Bits: longword): longword;
begin
Result := (lValue shl Bits) Or (lValue shr (32 - Bits));
end;

class function sMD5.WordToHex(const lValue: longword): string;
var
s: string;
begin
s := inttohex(lValue, 8);
Result := s[7]+s[8]+s[5]+s[6]+s[3]+s[4]+s[1]+s[2];
end;

end.

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