我写了二个加解密的函数(当然也是抄的),但发现结果不是很正常
比如收入'Hello,World'是加密后再解密回来变成了'Hello,Worl',
但是如果输入'hello,world'却又结果正常,真是百思不得其解,
现请教各位有没有什么好的加密界面控件介绍,另外我写的函数到底有什么问题?unit encrypt;interfaceuses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;type
TForm1 = class(TForm)
Button1: TButton;
Button2: TButton;
Edit1: TEdit;
Edit2: TEdit;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
function Encrypt (const S: pchar; Key: Word): pchar;
function Decrypt (const S: pchar; Key: Word): pchar;
end;const
C1 = 52845;
C2 = 22719;
var
Form1: TForm1;implementation{$R *.dfm}function tform1.Encrypt (const S: pchar; Key: Word): pchar;
var
I: byte;
len:integer;
strResult:string;
destResult:pchar;
strS:string;
begin
strS:=strpas(s);
len:=length(strS);
setlength(strResult,len);
strResult[1]:=strS[1];
for I := 2 to len do begin
strResult[I] := char(byte(strS[I]) xor (Key shr 8));
Key := (byte(strResult[I]) + Key) * C1 + C2;
end;
GetMem(destResult, 32767);
strpcopy(destResult,strResult);
Result:=destResult;
end;
function tform1.Decrypt (const S: pchar; Key: Word): pchar;
var
I: byte;
len:integer;
strResult:string;
destResult:pchar;
strS:string;
begin
strS:=strpas(S);
len:=length(strS);
setlength(strResult,len);
strResult[1]:=strS[1];
for I := 2 to Len do begin
strResult[I] := char(byte(strS[I]) xor (Key shr 8));
Key := (byte(strS[I]) + Key) * C1 + C2;
end;
GetMem(destResult, 32767);
strpcopy(destResult,strResult);
Result:=destResult;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
edit2.Text:=encrypt(pchar(edit1.Text ),12345);
end;procedure TForm1.Button2Click(Sender: TObject);
begin
edit1.Text :=decrypt(pchar(edit2.Text ),12345);
end;end.
比如收入'Hello,World'是加密后再解密回来变成了'Hello,Worl',
但是如果输入'hello,world'却又结果正常,真是百思不得其解,
现请教各位有没有什么好的加密界面控件介绍,另外我写的函数到底有什么问题?unit encrypt;interfaceuses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;type
TForm1 = class(TForm)
Button1: TButton;
Button2: TButton;
Edit1: TEdit;
Edit2: TEdit;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
function Encrypt (const S: pchar; Key: Word): pchar;
function Decrypt (const S: pchar; Key: Word): pchar;
end;const
C1 = 52845;
C2 = 22719;
var
Form1: TForm1;implementation{$R *.dfm}function tform1.Encrypt (const S: pchar; Key: Word): pchar;
var
I: byte;
len:integer;
strResult:string;
destResult:pchar;
strS:string;
begin
strS:=strpas(s);
len:=length(strS);
setlength(strResult,len);
strResult[1]:=strS[1];
for I := 2 to len do begin
strResult[I] := char(byte(strS[I]) xor (Key shr 8));
Key := (byte(strResult[I]) + Key) * C1 + C2;
end;
GetMem(destResult, 32767);
strpcopy(destResult,strResult);
Result:=destResult;
end;
function tform1.Decrypt (const S: pchar; Key: Word): pchar;
var
I: byte;
len:integer;
strResult:string;
destResult:pchar;
strS:string;
begin
strS:=strpas(S);
len:=length(strS);
setlength(strResult,len);
strResult[1]:=strS[1];
for I := 2 to Len do begin
strResult[I] := char(byte(strS[I]) xor (Key shr 8));
Key := (byte(strS[I]) + Key) * C1 + C2;
end;
GetMem(destResult, 32767);
strpcopy(destResult,strResult);
Result:=destResult;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
edit2.Text:=encrypt(pchar(edit1.Text ),12345);
end;procedure TForm1.Button2Click(Sender: TObject);
begin
edit1.Text :=decrypt(pchar(edit2.Text ),12345);
end;end.
// -----------------------------------------------------------------------------------------------
//
// MD5 Message-Digest for Delphi 4
//
// Delphi 4 Unit implementing the
// RSA Data Security, Inc. MD5 Message-Digest Algorithm
//
// Implementation of Ronald L. Rivest's RFC 1321
//
// Copyright ?1997-1999 Medienagentur Fichtner & Meyer
// Written by Matthias Fichtner
//
// -----------------------------------------------------------------------------------------------
// See RFC 1321 for RSA Data Security's copyright and license notice!
// -----------------------------------------------------------------------------------------------
//
// 14-Jun-97 mf Implemented MD5 according to RFC 1321 RFC 1321
// 16-Jun-97 mf Initial release of the compiled unit (no source code) RFC 1321
// 28-Feb-99 mf Added MD5Match function for comparing two digests RFC 1321
// 13-Sep-99 mf Reworked the entire unit RFC 1321
// 17-Sep-99 mf Reworked the "Test Driver" project RFC 1321
// 19-Sep-99 mf Release of sources for MD5 unit and "Test Driver" project RFC 1321
//
// -----------------------------------------------------------------------------------------------
// The latest release of md5.pas will always be available from
// the distribution site at: http://www.fichtner.net/delphi/md5/
// -----------------------------------------------------------------------------------------------
// Please send questions, bug reports and suggestions
// regarding this code to: [email protected]
// -----------------------------------------------------------------------------------------------
// This code is provided "as is" without express or
// implied warranty of any kind. Use it at your own risk.
// -----------------------------------------------------------------------------------------------unit md5;// -----------------------------------------------------------------------------------------------
INTERFACE
// -----------------------------------------------------------------------------------------------uses
Windows;type
MD5Count = array[0..1] of DWORD;
MD5State = array[0..3] of DWORD;
MD5Block = array[0..15] of DWORD;
MD5CBits = array[0..7] of byte;
MD5Digest = array[0..15] of byte;
MD5Buffer = array[0..63] of byte;
MD5Context = record
State: MD5State;
Count: MD5Count;
Buffer: MD5Buffer;
end;procedure MD5Init(var Context: MD5Context);
procedure MD5Update(var Context: MD5Context; Input: pChar; Length: longword);
procedure MD5Final(var Context: MD5Context; var Digest: MD5Digest);function MD5String(M: string): MD5Digest;
function MD5File(N: string): MD5Digest;
function MD5Print(D: MD5Digest): string;function MD5Match(D1, D2: MD5Digest): boolean;// -----------------------------------------------------------------------------------------------
IMPLEMENTATION
// -----------------------------------------------------------------------------------------------var
PADDING: MD5Buffer = (
$80, $00, $00, $00, $00, $00, $00, $00,
$00, $00, $00, $00, $00, $00, $00, $00,
$00, $00, $00, $00, $00, $00, $00, $00,
$00, $00, $00, $00, $00, $00, $00, $00,
$00, $00, $00, $00, $00, $00, $00, $00,
$00, $00, $00, $00, $00, $00, $00, $00,
$00, $00, $00, $00, $00, $00, $00, $00,
$00, $00, $00, $00, $00, $00, $00, $00
);function F(x, y, z: DWORD): DWORD;
begin
Result := (x and y) or ((not x) and z);
end;function G(x, y, z: DWORD): DWORD;
begin
Result := (x and z) or (y and (not z));
end;function H(x, y, z: DWORD): DWORD;
begin
Result := x xor y xor z;
end;function I(x, y, z: DWORD): DWORD;
begin
Result := y xor (x or (not z));
end;procedure rot(var x: DWORD; n: BYTE);
begin
x := (x shl n) or (x shr (32 - n));
end;procedure FF(var a: DWORD; b, c, d, x: DWORD; s: BYTE; ac: DWORD);
begin
inc(a, F(b, c, d) + x + ac);
rot(a, s);
inc(a, b);
end;procedure GG(var a: DWORD; b, c, d, x: DWORD; s: BYTE; ac: DWORD);
begin
inc(a, G(b, c, d) + x + ac);
rot(a, s);
inc(a, b);
end;procedure HH(var a: DWORD; b, c, d, x: DWORD; s: BYTE; ac: DWORD);
begin
inc(a, H(b, c, d) + x + ac);
rot(a, s);
inc(a, b);
end;procedure II(var a: DWORD; b, c, d, x: DWORD; s: BYTE; ac: DWORD);
begin
inc(a, I(b, c, d) + x + ac);
rot(a, s);
inc(a, b);
end;// -----------------------------------------------------------------------------------------------// Encode Count bytes at Source into (Count / 4) DWORDs at Target
procedure Encode(Source, Target: pointer; Count: longword);
var
S: PByte;
T: PDWORD;
I: longword;
begin
S := Source;
T := Target;
for I := 1 to Count div 4 do begin
T^ := S^;
inc(S);
T^ := T^ or (S^ shl 8);
inc(S);
T^ := T^ or (S^ shl 16);
inc(S);
T^ := T^ or (S^ shl 24);
inc(S);
inc(T);
end;
end;// Decode Count DWORDs at Source into (Count * 4) Bytes at Target
procedure Decode(Source, Target: pointer; Count: longword);
var
S: PDWORD;
T: PByte;
I: longword;
begin
S := Source;
T := Target;
for I := 1 to Count do begin
T^ := S^ and $ff;
inc(T);
T^ := (S^ shr 8) and $ff;
inc(T);
T^ := (S^ shr 16) and $ff;
inc(T);
T^ := (S^ shr 24) and $ff;
inc(T);
inc(S);
end;
end;
procedure Transform(Buffer: pointer; var State: MD5State);
var
a, b, c, d: DWORD;
Block: MD5Block;
begin
Encode(Buffer, @Block, 64);
a := State[0];
b := State[1];
c := State[2];
d := State[3];
FF (a, b, c, d, Block[ 0], 7, $d76aa478);
FF (d, a, b, c, Block[ 1], 12, $e8c7b756);
FF (c, d, a, b, Block[ 2], 17, $242070db);
FF (b, c, d, a, Block[ 3], 22, $c1bdceee);
FF (a, b, c, d, Block[ 4], 7, $f57c0faf);
FF (d, a, b, c, Block[ 5], 12, $4787c62a);
FF (c, d, a, b, Block[ 6], 17, $a8304613);
FF (b, c, d, a, Block[ 7], 22, $fd469501);
FF (a, b, c, d, Block[ 8], 7, $698098d8);
FF (d, a, b, c, Block[ 9], 12, $8b44f7af);
FF (c, d, a, b, Block[10], 17, $ffff5bb1);
FF (b, c, d, a, Block[11], 22, $895cd7be);
FF (a, b, c, d, Block[12], 7, $6b901122);
FF (d, a, b, c, Block[13], 12, $fd987193);
FF (c, d, a, b, Block[14], 17, $a679438e);
FF (b, c, d, a, Block[15], 22, $49b40821);
GG (a, b, c, d, Block[ 1], 5, $f61e2562);
GG (d, a, b, c, Block[ 6], 9, $c040b340);
GG (c, d, a, b, Block[11], 14, $265e5a51);
GG (b, c, d, a, Block[ 0], 20, $e9b6c7aa);
GG (a, b, c, d, Block[ 5], 5, $d62f105d);
GG (d, a, b, c, Block[10], 9, $2441453);
GG (c, d, a, b, Block[15], 14, $d8a1e681);
GG (b, c, d, a, Block[ 4], 20, $e7d3fbc8);
GG (a, b, c, d, Block[ 9], 5, $21e1cde6);
GG (d, a, b, c, Block[14], 9, $c33707d6);
GG (c, d, a, b, Block[ 3], 14, $f4d50d87);
GG (b, c, d, a, Block[ 8], 20, $455a14ed);
GG (a, b, c, d, Block[13], 5, $a9e3e905);
GG (d, a, b, c, Block[ 2], 9, $fcefa3f8);
GG (c, d, a, b, Block[ 7], 14, $676f02d9);
GG (b, c, d, a, Block[12], 20, $8d2a4c8a);
HH (a, b, c, d, Block[ 5], 4, $fffa3942);
HH (d, a, b, c, Block[ 8], 11, $8771f681);
HH (c, d, a, b, Block[11], 16, $6d9d6122);
HH (b, c, d, a, Block[14], 23, $fde5380c);
HH (a, b, c, d, Block[ 1], 4, $a4beea44);
HH (d, a, b, c, Block[ 4], 11, $4bdecfa9);
HH (c, d, a, b, Block[ 7], 16, $f6bb4b60);
HH (b, c, d, a, Block[10], 23, $bebfbc70);
HH (a, b, c, d, Block[13], 4, $289b7ec6);
HH (d, a, b, c, Block[ 0], 11, $eaa127fa);
HH (c, d, a, b, Block[ 3], 16, $d4ef3085);
HH (b, c, d, a, Block[ 6], 23, $4881d05);
HH (a, b, c, d, Block[ 9], 4, $d9d4d039);
HH (d, a, b, c, Block[12], 11, $e6db99e5);
HH (c, d, a, b, Block[15], 16, $1fa27cf8);
HH (b, c, d, a, Block[ 2], 23, $c4ac5665);
II (a, b, c, d, Block[ 0], 6, $f4292244);
II (d, a, b, c, Block[ 7], 10, $432aff97);
II (c, d, a, b, Block[14], 15, $ab9423a7);
II (b, c, d, a, Block[ 5], 21, $fc93a039);
II (a, b, c, d, Block[12], 6, $655b59c3);
II (d, a, b, c, Block[ 3], 10, $8f0ccc92);
II (c, d, a, b, Block[10], 15, $ffeff47d);
II (b, c, d, a, Block[ 1], 21, $85845dd1);
II (a, b, c, d, Block[ 8], 6, $6fa87e4f);
II (d, a, b, c, Block[15], 10, $fe2ce6e0);
II (c, d, a, b, Block[ 6], 15, $a3014314);
II (b, c, d, a, Block[13], 21, $4e0811a1);
II (a, b, c, d, Block[ 4], 6, $f7537e82);
II (d, a, b, c, Block[11], 10, $bd3af235);
II (c, d, a, b, Block[ 2], 15, $2ad7d2bb);
II (b, c, d, a, Block[ 9], 21, $eb86d391);
inc(State[0], a);
inc(State[1], b);
inc(State[2], c);
inc(State[3], d);
end;// -----------------------------------------------------------------------------------------------// Initialize given Context
procedure MD5Init(var Context: MD5Context);
begin
with Context do begin
State[0] := $67452301;
State[1] := $efcdab89;
State[2] := $98badcfe;
State[3] := $10325476;
Count[0] := 0;
Count[1] := 0;
ZeroMemory(@Buffer, SizeOf(MD5Buffer));
end;
end;// Update given Context to include Length bytes of Input
procedure MD5Update(var Context: MD5Context; Input: pChar; Length: longword);
var
Index: longword;
PartLen: longword;
I: longword;
begin
with Context do begin
Index := (Count[0] shr 3) and $3f;
inc(Count[0], Length shl 3);
if Count[0] < (Length shl 3) then inc(Count[1]);
inc(Count[1], Length shr 29);
end;
PartLen := 64 - Index;
if Length >= PartLen then begin
CopyMemory(@Context.Buffer[Index], Input, PartLen);
Transform(@Context.Buffer, Context.State);
I := PartLen;
while I + 63 < Length do begin
Transform(@Input[I], Context.State);
inc(I, 64);
end;
Index := 0;
end else I := 0;
CopyMemory(@Context.Buffer[Index], @Input[I], Length - I);
end;// Finalize given Context, create Digest and zeroize Context
procedure MD5Final(var Context: MD5Context; var Digest: MD5Digest);
var
Bits: MD5CBits;
Index: longword;
PadLen: longword;
begin
Decode(@Context.Count, @Bits, 2);
Index := (Context.Count[0] shr 3) and $3f;
if Index < 56 then PadLen := 56 - Index else PadLen := 120 - Index;
MD5Update(Context, @PADDING, PadLen);
MD5Update(Context, @Bits, 8);
Decode(@Context.State, @Digest, 4);
ZeroMemory(@Context, SizeOf(MD5Context));
end;// -----------------------------------------------------------------------------------------------// Create digest of given Message
function MD5String(M: string): MD5Digest;
var
Context: MD5Context;
begin
MD5Init(Context);
MD5Update(Context, pChar(M), length(M));
MD5Final(Context, Result);
end;// Create digest of file with given Name
function MD5File(N: string): MD5Digest;
var
FileHandle: THandle;
MapHandle: THandle;
ViewPointer: pointer;
Context: MD5Context;
begin
MD5Init(Context);
FileHandle := CreateFile(pChar(N), GENERIC_READ, FILE_SHARE_READ or FILE_SHARE_WRITE,
nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL or FILE_FLAG_SEQUENTIAL_SCAN, 0);
if FileHandle <> INVALID_HANDLE_VALUE then try
MapHandle := CreateFileMapping(FileHandle, nil, PAGE_READONLY, 0, 0, nil);
if MapHandle <> 0 then try
ViewPointer := MapViewOfFile(MapHandle, FILE_MAP_READ, 0, 0, 0);
if ViewPointer <> nil then try
MD5Update(Context, ViewPointer, GetFileSize(FileHandle, nil));
finally
UnmapViewOfFile(ViewPointer);
end;
finally
CloseHandle(MapHandle);
end;
finally
CloseHandle(FileHandle);
end;
MD5Final(Context, Result);
end;// Create hex representation of given Digest
function MD5Print(D: MD5Digest): string;
var
I: byte;
const
Digits: array[0..15] of char =
('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f');
begin
Result := '';
for I := 0 to 15 do Result := Result + Digits[(D[I] shr 4) and $0f] + Digits[D[I] and $0f];
end;// -----------------------------------------------------------------------------------------------// Compare two Digests
function MD5Match(D1, D2: MD5Digest): boolean;
var
I: byte;
begin
I := 0;
Result := TRUE;
while Result and (I < 16) do begin
Result := D1[I] = D2[I];
inc(I);
end;
end;end.
给你一个改好的--------------也是抄的,哈哈
const
StartKey = 754; {Start default key}
MultKey = 86003; {Mult default key}
AddKey = 39626; {Add default key}function cl_encrypt( szMingwen : PChar ) : PChar; stdcall; export;
function cl_decrypt( szMiwen : PChar ) : PChar; stdcall; export;//------------------------------------------------------------------------------
//
//
// 字符串加密解密
//
//
//------------------------------------------------------------------------------{
/************************************************************************
*名称: Cl_crypt32.pas
*
*说明: Cl_crypt32.pas为一支编解码模组,乃修改『Martin Djern 』先生所修改
* 的《crypt32.pas 32 bits encode/decode module》而成(修改的理由请详
* 见下述)。
*
*函数原型: function cl_encrypt(s:string):string;
* function cl_decrypt(s:string):string;
*
*使用方法: 《编码》encrypted:=cl_encrypt('password');
* 《解码》decrypted:=cl_decrypt(encrypted);
*
*注意: 使用时,请先修改cl_crypt32.pas内StartKey,MultKey,AddKey叁个key值。
* (其中startkey的值最好不要小於256)。
*
*修改的理由: 仅管『Martin Djern 』先生的《crypt32.pas 32 bits encode/decode module》
* 已经很好用,但是我在实际应用时,却发现下列的问题:
* 1.无法把编码後的字串指定给edit元件。
* 2.无法把编码後的字串存放在.ini档内。
* 上述两点可以举下例两个例子证明:
* (例一〉
* edit1.text:=Encrypt('password',StartKey,MultKey,AddKey);
* edit2.text:=decrypt(edit1.text,StartKey,MultKey,AddKey);
* 结果: edit2.text的内容不等於'password'
* (例二)
* var
* IniFile: TIniFile;
* begin
* IniFile := TIniFile.Create('test.INI');
* IniFile.WriteString('demo', 'password', Encrypt('password',StartKey,MultKey,AddKey));
* IniFile.Free;
*
* IniFile := TIniFile.Create('test.INI');
* edit2.text:=decrypt(IniFile.readString('demo', 'password', ''),StartKey,MultKey,AddKey);
* IniFile.Free;
* 结果: edit2.text的内容不等於'password'
* 上述两种情况的发生原因,大概是因为编码後的字元码大於127,
* 因此无法被『具有处理文字型态能力的元件』正确处理。
* 基於上述理由,我把它修改了一下,并加上以系统时间值为参数,
* 使其编码後的值可以成功存放在edit.text及.ini files内。
*
*修改者: [email protected]
*
*************************************************************************/
}{$R-}
{$Q-}
//------------------------------------------------------------------------------
// Standard Encryption algorithm - Copied from Borland *
//------------------------------------------------------------------------------
function Encrypt( const InString:string; StartKey, MultKey, AddKey :Integer ): string;
var
I : Byte;
begin
Result := '';
for I := 1 to Length(InString) do
begin
Result := Result + CHAR(Byte(InString[I]) xor (StartKey shr 8));
StartKey := (Byte(Result[I]) + StartKey) * MultKey + AddKey;
end;
end;
//------------------------------------------------------------------------------
// Standard Decryption algorithm - Copied from Borland *
//------------------------------------------------------------------------------
function Decrypt( const InString: string; StartKey, MultKey, AddKey: Integer ): string;
var
I : Byte;
begin
Result := '';
for I := 1 to Length(InString) do
begin
Result := Result + CHAR(Byte(InString[I]) xor (StartKey shr 8));
StartKey := (Byte(InString[I]) + StartKey) * MultKey + AddKey;
end;
end;
{$R+}
{$Q+}
//------------------------------------------------------------------------------
{Coded by cloudy}
function cl_intto0str( int1: integer; len :integer ): string;
var
i, j: integer;
begin
if length(inttostr(int1))>=len then
result:=inttostr(int1)
else
begin
result:='';
i:=len-length(inttostr(int1));
for j:=1 to i do result:=result+'0';
result:=result+inttostr(int1);
end;
end;
//------------------------------------------------------------------------------
{Coded by cloudy}
function cl_chartobytestr( s : string ) : string;
var
i:byte;
begin
result:='';
for i:=1 to length(s) do
result:=result+cl_intto0str(byte(s[i]),3);
end;
//------------------------------------------------------------------------------
{Coded by cloudy}
function cl_bytetocharstr( s : string ) : string;
var
i:integer;
begin
i:=1;
result:='';
if (length(s) mod 3)=0 then
while i<length(s) do
begin
result:=result+char(strtoint(copy(s,i,3)));
i:=i+3;
end;
end;
//------------------------------------------------------------------------------
{Coded by cloudy}
{Rework by Bruce Chen}
function cl_encrypt( szMingwen : PChar ) : PChar;
var
years, months, days, hours, mins, secs, msec: Word;
cl_StartKey, cl_MultKey, cl_AddKey: LongInt;
s, sTemp: String;
szMiwen: PChar;
begin
try
s := StrPas( szMingwen );
decodedate(now, years, months, days);
decodetime(now, hours, mins, secs, msec);
cl_StartKey:=msec;
if cl_StartKey<256 then cl_StartKey:=cl_StartKey+256;
cl_Multkey:=((years-1900)*12+months)*30+days+cl_StartKey*10+cl_StartKey;
cl_AddKey:=(23*hours+mins)*60+secs+cl_StartKey*10+cl_StartKey;
//result:=cl_chartobytestr(Encrypt(cl_intto0str(cl_StartKey,3),StartKey,MultKey,AddKey))+
// cl_chartobytestr(Encrypt(cl_intto0str(cl_Multkey,5),StartKey,MultKey,AddKey))+
// cl_chartobytestr(Encrypt(cl_intto0str(cl_Addkey,5),StartKey,MultKey,AddKey))+
// cl_chartobytestr(Encrypt(s,cl_StartKey,cl_MultKey,cl_AddKey));
sTemp := cl_chartobytestr( Encrypt(cl_intto0str(cl_StartKey,3),StartKey,MultKey,AddKey) )+
cl_chartobytestr( Encrypt(cl_intto0str(cl_Multkey,5),StartKey,MultKey,AddKey) )+
cl_chartobytestr( Encrypt(cl_intto0str(cl_Addkey,5),StartKey,MultKey,AddKey) )+
cl_chartobytestr( Encrypt(s,cl_StartKey,cl_MultKey,cl_AddKey) );
szMiwen := StrAlloc( Length(sTemp) + 1 );
StrPCopy( szMiwen, sTemp );
Result := szMiwen;
except
Result := nil;
end;
end;
//------------------------------------------------------------------------------
{Coded by cloudy}
{Rework by Bruce Chen}
function cl_decrypt( szMiwen: PChar ): PChar;
var
cl_StartKey, cl_Multkey, cl_AddKey: LongInt;
s, sTemp: String;
szMingwen: PChar;
begin
try
s := StrPas( szMiwen );
cl_StartKey:=strtoint(decrypt(cl_bytetocharstr(copy(s, 1, 9)),StartKey,MultKey,AddKey));
cl_MultKey:=strtoint(decrypt(cl_bytetocharstr(copy(s, 10, 15)),StartKey,MultKey,AddKey));
cl_AddKey:=strtoint(decrypt(cl_bytetocharstr(copy(s, 25, 15)),StartKey,MultKey,AddKey));
//result:=decrypt(cl_bytetocharstr(copy(s, 40, length(s)-39)),cl_StartKey,cl_MultKey,cl_AddKey);
sTemp := decrypt(cl_bytetocharstr(copy(s, 40, length(s)-39)),cl_StartKey,cl_MultKey,cl_AddKey);
szMingwen := StrAlloc( Length(sTemp) + 1 );
StrPCopy( szMingwen, sTemp );
Result := szMingwen;
except
Result := nil;
end;
end;
DCPack的
Cipher的
都非常的好用HASH是签名用的,不能直接加密,但可以在加密算法中使用http://lysoft.7u7.net
Cipher的在哪有下载?