?? unit1.~pas
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///////////////////////////////////////////////////////////////////////////////
//AES DEMO V1.0//
//作者：ksaiy//
//歡迎使用由ksaiy制作的AES加密算法演示程序，此算法為標準的AES算法，你可以根據(jù)的
//的自己需要進行變形。具體怎么操作可以登錄我們的網(wǎng)站查詢詳細的資料。我們專門為軟
//件開發(fā)者提供軟件加密安全測試服務和軟件加密解決方案，具體的可以參看我們的網(wǎng)站上
//的資料。我們的網(wǎng)站：http://www.ksaiy.com http://www.magicoa.com
//技術(shù)支持:ksaiy@sina.com 在線QQ：40188696 UC：934155
//End //
//注意：轉(zhuǎn)載請保留以上信息。//
///////////////////////////////////////////////////////////////////////////////
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Label1: TLabel;
Label2: TLabel;
Label3: TLabel;
Edit1: TEdit;
Edit2: TEdit;
Button1: TButton;
Button2: TButton;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
type
EAESError = class(Exception);
PInteger = ^Integer;
TAESBuffer = array [0..15] of byte;
TAESKey128 = array [0..15] of byte;
TAESKey192 = array [0..23] of byte;
TAESKey256 = array [0..31] of byte;
TAESExpandedKey128 = array [0..43] of longword;
TAESExpandedKey192 = array [0..53] of longword;
TAESExpandedKey256 = array [0..63] of longword;
PAESBuffer =^TAESBuffer;
PAESKey128 =^TAESKey128;
PAESKey192 =^TAESKey192;
PAESKey256 =^TAESKey256;
PAESExpandedKey128 =^TAESExpandedKey128;
PAESExpandedKey192 =^TAESExpandedKey192;
PAESExpandedKey256 =^TAESExpandedKey256;
// Key expansion routines for encryption
procedure ExpandAESKeyForEncryption(const Key: TAESKey128;
var ExpandedKey: TAESExpandedKey128); overload;
procedure ExpandAESKeyForEncryption(const Key: TAESKey192;
var ExpandedKey: TAESExpandedKey192); overload;
procedure ExpandAESKeyForEncryption(const Key: TAESKey256;
var ExpandedKey: TAESExpandedKey256); overload;
// Block encryption routines
procedure EncryptAES(const InBuf: TAESBuffer; const Key: TAESExpandedKey128;
var OutBuf: TAESBuffer); overload;
procedure EncryptAES(const InBuf: TAESBuffer; const Key: TAESExpandedKey192;
var OutBuf: TAESBuffer); overload;
procedure EncryptAES(const InBuf: TAESBuffer; const Key: TAESExpandedKey256;
var OutBuf: TAESBuffer); overload;
// Stream encryption routines (ECB mode)
procedure EncryptAESStreamECB(Source: TStream; Count: cardinal;
const Key: TAESKey128; Dest: TStream); overload;
procedure EncryptAESStreamECB(Source: TStream; Count: cardinal;
const ExpandedKey: TAESExpandedKey128; Dest: TStream); overload;
procedure EncryptAESStreamECB(Source: TStream; Count: cardinal;
const Key: TAESKey192; Dest: TStream); overload;
procedure EncryptAESStreamECB(Source: TStream; Count: cardinal;
const ExpandedKey: TAESExpandedKey192; Dest: TStream); overload;
procedure EncryptAESStreamECB(Source: TStream; Count: cardinal;
const Key: TAESKey256; Dest: TStream); overload;
procedure EncryptAESStreamECB(Source: TStream; Count: cardinal;
const ExpandedKey: TAESExpandedKey256; Dest: TStream); overload;
// Stream encryption routines (CBC mode)
procedure EncryptAESStreamCBC(Source: TStream; Count: cardinal;
const Key: TAESKey128; const InitVector: TAESBuffer; Dest: TStream); overload;
procedure EncryptAESStreamCBC(Source: TStream; Count: cardinal;
const ExpandedKey: TAESExpandedKey128; const InitVector: TAESBuffer;
Dest: TStream); overload;
procedure EncryptAESStreamCBC(Source: TStream; Count: cardinal;
const Key: TAESKey192; const InitVector: TAESBuffer; Dest: TStream); overload;
procedure EncryptAESStreamCBC(Source: TStream; Count: cardinal;
const ExpandedKey: TAESExpandedKey192; const InitVector: TAESBuffer;
Dest: TStream); overload;
procedure EncryptAESStreamCBC(Source: TStream; Count: cardinal;
const Key: TAESKey256; const InitVector: TAESBuffer; Dest: TStream); overload;
procedure EncryptAESStreamCBC(Source: TStream; Count: cardinal;
const ExpandedKey: TAESExpandedKey256; const InitVector: TAESBuffer;
Dest: TStream); overload;
// Key transformation routines for decryption
procedure ExpandAESKeyForDecryption(var ExpandedKey: TAESExpandedKey128); overload;
procedure ExpandAESKeyForDecryption(const Key: TAESKey128;
var ExpandedKey: TAESExpandedKey128); overload;
procedure ExpandAESKeyForDecryption(var ExpandedKey: TAESExpandedKey192); overload;
procedure ExpandAESKeyForDecryption(const Key: TAESKey192;
var ExpandedKey: TAESExpandedKey192); overload;
procedure ExpandAESKeyForDecryption(var ExpandedKey: TAESExpandedKey256); overload;
procedure ExpandAESKeyForDecryption(const Key: TAESKey256;
var ExpandedKey: TAESExpandedKey256); overload;
// Block decryption routines
procedure DecryptAES(const InBuf: TAESBuffer; const Key: TAESExpandedKey128;
var OutBuf: TAESBuffer); overload;
procedure DecryptAES(const InBuf: TAESBuffer; const Key: TAESExpandedKey192;
var OutBuf: TAESBuffer); overload;
procedure DecryptAES(const InBuf: TAESBuffer; const Key: TAESExpandedKey256;
var OutBuf: TAESBuffer); overload;
// Stream decryption routines (ECB mode)
procedure DecryptAESStreamECB(Source: TStream; Count: cardinal;
const Key: TAESKey128; Dest: TStream); overload;
procedure DecryptAESStreamECB(Source: TStream; Count: cardinal;
const ExpandedKey: TAESExpandedKey128; Dest: TStream); overload;
procedure DecryptAESStreamECB(Source: TStream; Count: cardinal;
const Key: TAESKey192; Dest: TStream); overload;
procedure DecryptAESStreamECB(Source: TStream; Count: cardinal;
const ExpandedKey: TAESExpandedKey192; Dest: TStream); overload;
procedure DecryptAESStreamECB(Source: TStream; Count: cardinal;
const Key: TAESKey256; Dest: TStream); overload;
procedure DecryptAESStreamECB(Source: TStream; Count: cardinal;
const ExpandedKey: TAESExpandedKey256; Dest: TStream); overload;
// Stream decryption routines (CBC mode)
procedure DecryptAESStreamCBC(Source: TStream; Count: cardinal;
const Key: TAESKey128; const InitVector: TAESBuffer; Dest: TStream); overload;
procedure DecryptAESStreamCBC(Source: TStream; Count: cardinal;
const ExpandedKey: TAESExpandedKey128; const InitVector: TAESBuffer;
Dest: TStream); overload;
procedure DecryptAESStreamCBC(Source: TStream; Count: cardinal;
const Key: TAESKey192; const InitVector: TAESBuffer; Dest: TStream); overload;
procedure DecryptAESStreamCBC(Source: TStream; Count: cardinal;
const ExpandedKey: TAESExpandedKey192; const InitVector: TAESBuffer;
Dest: TStream); overload;
procedure DecryptAESStreamCBC(Source: TStream; Count: cardinal;
const Key: TAESKey256; const InitVector: TAESBuffer; Dest: TStream); overload;
procedure DecryptAESStreamCBC(Source: TStream; Count: cardinal;
const ExpandedKey: TAESExpandedKey256; const InitVector: TAESBuffer;
Dest: TStream); overload;
resourcestring
SInvalidInBufSize = 'Invalid buffer size for decryption';
SReadError = 'Stream read error';
SWriteError = 'Stream write error';
var
Form1: TForm1;
implementation
{$R *.dfm}
type
PLongWord = ^LongWord;
function Min(A, B: integer): integer;
begin
if A < B then
Result := A
else
Result := B;
end;
const
Rcon: array [1..30] of longword = (
$00000001, $00000002, $00000004, $00000008, $00000010, $00000020,
$00000040, $00000080, $0000001B, $00000036, $0000006C, $000000D8,
$000000AB, $0000004D, $0000009A, $0000002F, $0000005E, $000000BC,
$00000063, $000000C6, $00000097, $00000035, $0000006A, $000000D4,
$000000B3, $0000007D, $000000FA, $000000EF, $000000C5, $00000091
);
ForwardTable: array [0..255] of longword = (
$A56363C6, $847C7CF8, $997777EE, $8D7B7BF6, $0DF2F2FF, $BD6B6BD6, $B16F6FDE, $54C5C591,
$50303060, $03010102, $A96767CE, $7D2B2B56, $19FEFEE7, $62D7D7B5, $E6ABAB4D, $9A7676EC,
$45CACA8F, $9D82821F, $40C9C989, $877D7DFA, $15FAFAEF, $EB5959B2, $C947478E, $0BF0F0FB,
$ECADAD41, $67D4D4B3, $FDA2A25F, $EAAFAF45, $BF9C9C23, $F7A4A453, $967272E4, $5BC0C09B,
$C2B7B775, $1CFDFDE1, $AE93933D, $6A26264C, $5A36366C, $413F3F7E, $02F7F7F5, $4FCCCC83,
$5C343468, $F4A5A551, $34E5E5D1, $08F1F1F9, $937171E2, $73D8D8AB, $53313162, $3F15152A,
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