CodeCrypter enables you to encrypt scripts without placing the key inside the script.
This is because this key is extracted from the user environment at runtime by, for example:
password user query any macro (e.g., @username) any AutoIt function call any UDF call some permanent environment variable on a specific machine (and not created by your script) a server response a device response anything else you can think of, as long as it's not stored in the script any combination of the above You need several scripts to get this to work, and they are scattered over several threads, so here's a single bundle that contains them all (including a patched version of Ward's AES.au3; with many thanks to Ward for allowing me to include this script here):
Latest version: 2.4, (10 July 2019): CodeScannerCrypter.bundle.v2.4.7z
Note: if you experience issues under Win8/8.1 (as some users have reported), please upgrade to Win10 (or use Win7) if you can; as far as I can tell, the scripts in the bundle all work under Win7 & Win10 (and XP). Moreover, I have no access to a Win8 box, so these issues will not be fixed, at least not by yours truly.
How the bits and pieces fit together:
CodeCrypter is a front-end for the MCF UDF library (you need version 1.3 or later). Its thread is here:
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The MCF package (also contained in the CodeScannerCrypter bundle) contains MCF.au3 (the library itself) plus a little include file called MCFinclude.au3. The latter you have to include in any script you wish to encrypt. Any code preceding it will not be encrypted, any code following it will be encrypted. You define the dynamic key inside MCFinclude.au3, in the UDF: _MCFCC_Init().
From the same post you can download an MCF Tutorial which I heartily recommend, because encrypting a script requires a number of steps in the right order, namely:
In MCFinclude.au3, define and/or choose your dynamic key(s) (skip this step = use default setting) include MCFinclude.au3 in your target script Run CodeScanner (version 2.3+) on your target script, with setting WriteMetaCode=True (see '?do=embed' frameborder='0' data-embedContent>>), then close CodeScanner. Start CodeCrypter press the Source button to load your target file enable Write MCF0 (tick the first option in Main Settings) Enable "Encrypt" (last option in the Main Settings) Go to the Tab Encrypt and set up the encryption the way you want (skip this = use default settings) Return to Main Tab and press "Run" if all goes well, a new script called MCF0test.au3 is created in the same directory as your target. It has no includes and no redundant parts. Please check that it works as normal. (see Remarks if not) It all sounds far more complicated than it is, really.
Not convinced? Check out this updated and extended Q & A pdf (FAQ, also included in the bundle) to help you get started:
For additional explanations/examples in response to specific questions by forum members (how it works, what it can/cannot do), see elsewhere in this thread, notably:
Simple analogy of how it works: post #53, second part General Explanation and HowTo: post #9, 51, 75, 185/187, 196, 207, 270, 280 (this gets a bit repetitive) BackTranslation: post #179 Obfuscation: post #36 (general), 49 (selective obfuscation) Specific features and fixes: post #3 (security), 84 (redefining the expected runtime response), 169 (Curl Enum fix), 185/187 (using license keys), 194 (replacing Ward's AES UDF with different encryption/decryption calls), 251 (AV detection issue), 262 (extract key contents to USB on different target machine prior to encryption) Limitations: post #26 (@error/@extended), 149 (FileInstall), 191 (AES.au3 on x64) Not recommended: post #46/249 (static encryption), 102 (programme logic error), 237 (parsing password via cmdline)
BackTranslation is a test to check that the MetaCode translation worked. Skip it at your peril. It also turns your multi-include composite script into a single portable file without redundant parts (you can opt to leave the redundant parts in, if you want).
CodeCrypter can also obfuscate (vars and UDF names) and replace strings, variable names and UDF names with anything else you provide, for example, for language translation). After CodeScanner separates your target's structure from its contents, CodeCrypter (actually MCF, under the hood) can change any part, and then generate a new script from whichever pieces you define. See the MCF Tutorial for more explanation and examples.
Encryption currently relies on Ward excellent AES UDF, but you can replace this with any other algorithm you like; just edit MCFinclude.au3 UDF _MCFCC(), and MCF.au3 UDF _EncryptEntry(), see post #194 in this thread.
AES.au3, by Ward is now also included in bundle (with thanks to Ward), see '?do=embed' frameborder='0' data-embedContent>>
Going to lie down now...
MetaCode offers a way to:
separate a script's structure from its content remove all redundant definitions (globals and UDFs) change any content (and some structure) combine (new) structure and (new) content into a new script The most useful applications implemented so far are:
Fast language translation (not just text strings, also variable names and UDF names) Obfuscation (vars and/or UDFs) Script Encryption (conditionals, calls, and macros) Encryption is powerful because the key is not stored anywhere; you can define it to be a user password, macro, environment spec/variable, server response, something you define yourself, or a combination thereof; anything goes, as long as it's not a fixed string or fixed value. More info in the CodeCrypter thread: ?do=embed' frameborder='0' data-embedContent>'?do=embed' frameborder='0' data-embedContent>>
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But MetaCode has more potential than that; it allows you to tinker with any type of content separately, then rebuild a new version. So for example, you can have a single script structure and numerous different language modules you just plug in to create a new version in a different language.
A brief Tutorial is here:
The MCF library itself can be found in the CodeScannerCrypter bundle: CodeScannerCrypter.bundle.v2.4.7z
And a little example how to use it for translating your GUI into a different language:
UI_Translator.7z (new version that should work with the new version of Google Translate, see post #13 below)
MCF.au3 is just the library plus the MCFinclude.au3 file you need to include in any script you wish to encrypt.
There is no GUI here. However, I did write a separate front-end for it called CodeCrypter, which you can find here:
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MCF uses output generated by my CodeScanner version 2.8+, which you can find here:
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CodeScanner also depends on MCF.au3 now, as it can now call a few of its functions.
I should also mention Ward's excellent AES.au3 UDFs used for the encryption and decryption calls, which is now included in the CodeScannerCrypter bundle (thanks to Ward for allowing to include it). You can find the original (unpatched) version here:
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Note: you can replace the encryption/decryption calls with whatever algorithm you like (hint: the native <Crypt.au3> library is too slow for most purposes, better stick to machine code routines)
So just to be clear:
CodeScanner (v2.8+) needs MCF (earlier versions won't work!) CodeCrypter needs MCF (plus anything that MCF needs) MCF itself needs MCFinclude (part of MCF zip) MCF also needs readCSdatadump (part of the CodeScanner package, you need the latest version packaged with CodeScanner v2.8; earlier versions won't work!) both MCF and MCFinclude currently rely on AES.au3 by Ward So you basically need to download the whole bundle for any of it to work.
If you have any questions, please start by reading the MCF Tutorial and the CodeCrypter FAQ (you can download the latter separately from the CodeCrypter thread).
Next, read the extensive Remarks sections in MCF.au3, MCFinclude.au3, and CodeCrypter.au3
If still no joy, then please post. However, I'm not online that often, and logged in to the forum even less, so response may take a while).
I had created login form and this form first goes to de-crypting file that encrypted then read the saved credentials by de-cryptied file, but doesn't work properly!
I want just read encrypted data without saving de-crypted file, just read!
#NoTrayIcon #include <Crypt.au3> #include <FileConstants.au3> #include <MsgBoxConstants.au3> #include <ButtonConstants.au3> #include <EditConstants.au3> #include <GUIConstantsEx.au3> #include <StaticConstants.au3> #include <WindowsConstants.au3> ;==================================Variables=================================== ;Encryption settings _Crypt_Startup() $PEK = _Crypt_DeriveKey("BS#Password", $CALG_AES_256, $CALG_SHA_512) $DefaultCredFile = "[Credentials]" & @CRLF & "BUsername=NoAdmin" & @CRLF & "BPassword=NoAdmin" & @CRLF & "[Process]" & @CRLF & "ProcessKillingTimeout=3600" $EncryptDefaultCred = _Crypt_EncryptData($DefaultCredFile, $PEK, $CALG_AES_256) $IniReadCredPassword = IniRead(@WindowsDir & "\Config\GUIDecCred.dat", "Credentials", "BPassword", "") $IniReadCredUsername = IniRead(@WindowsDir & "\Config\GUIDecCred.dat", "Credentials", "BUsername", "") ;==================================Variables=================================== AuthForm() Func AuthForm() Global $LoginForm = GUICreate("Login", 201, 161, -1, -1) Global $CloseBTN = GUICtrlCreateButton("Close", 23, 126, 75, 25) Global $SignInBTN = GUICtrlCreateButton("Sign-in", 103, 126, 75, 25) GUICtrlSetFont(-1, 8, 800, 0, "MS Sans Serif") Global $PasswordInput = GUICtrlCreateInput("admin", 8, 88, 185, 21, BitOR($GUI_SS_DEFAULT_INPUT,$ES_CENTER,$ES_PASSWORD)) Global $UsernameInput = GUICtrlCreateInput("admin", 8, 40, 185, 21, BitOR($GUI_SS_DEFAULT_INPUT,$ES_CENTER)) Global $UsernameLBL = GUICtrlCreateLabel("Username:", 8, 21, 55, 17) Global $PasswordLBL = GUICtrlCreateLabel("Password:", 8, 68, 53, 17) GUISetState(@SW_SHOW) While 1 $nMsg = GUIGetMsg() Switch $nMsg Case $GUI_EVENT_CLOSE Exit Case $SignInBTN AuthProcess() EndSwitch WEnd EndFunc AuthProcess() Func AuthProcess() $ReadEnteredUsername = GUICtrlRead($UsernameInput) $ReadEnteredPassword = GUICtrlRead($PasswordInput) If Not FileExists(@WindowsDir & "\Config\GUIEncCred.dat") Then FileDelete(@WindowsDir & "\Config\GUIDecCred.dat") ;Delete previous de-crypted credentials FileWrite(@WindowsDir & "\Config\GUIEncCred.dat", $EncryptDefaultCred) ;Write en-crypted credentials as "*.dat" file FileClose(@WindowsDir & "\Config\GUIEncCred.dat") ;Close en-crypted credentials file _Crypt_DecryptFile(@WindowsDir & "\Config\GUIEncCred.dat", @WindowsDir & "\Config\GUIDecCred.dat", $PEK, $CALG_AES_256) ;Write de-crypted file from an en-crypted file as "*.dat" file Else _Crypt_DecryptFile(@WindowsDir & "\Config\GUIEncCred.dat", @WindowsDir & "\Config\GUIDecCred.dat", $PEK, $CALG_AES_256) ;Write de-crypted file from an en-crypted file as "*.dat" file EndIf Sleep(25) If $ReadEnteredUsername == $IniReadCredUsername And $ReadEnteredPassword == $IniReadCredPassword Then ;Username and Password verify stage MsgBox(64, "", "Welcome!") FileDelete(@WindowsDir & "\Config\GUIDecCred.dat") Exit Else MsgBox(14, "", "Incorrect!") FileDelete(@WindowsDir & "\Config\GUIDecCred.dat") Sleep(25) EndIf EndFunc How Can i?
I found this article and enjoyed it so much I had play with some code since the numbers are small enough.
Standard Encryption's vs RSA Encryption (Public Key Encryption) Fundamental Differences
If you read that and couldn't immediately clarify the difference then let me blow your mind because its simple:
ORIGINAL_DATA + Password(or KEY) = Encrypted DATA
Then to decrypt ->
Encrypted DATA + (SAME Password(or SAME KEY)) = ORIGINAL_DATA
ORIGINAL_DATA + Password(or PUBLIC_KEY) = Encrypted DATA
Then to decrypt ->
Encrypted DATA + (DIFFERENT Password(or PRIVATE_KEY)) = ORIGINAL_DATA
Are we all caught up? Did the colors help? I think they did
That's crazy right? Don't answer. It is. And crazier its used EVERY TIME we make a secure connection to a server over the internet. But here's the craziest part to me that I recently got clarity on from the toy example and that is the simplicity of this very very very very important algorithm that has yet to be cracked (fingers crossed):
Mod($vData ^ $key, $n)
So ya. That's it. That's the magic algorithm. 3 values. Oh and $n is also a shared known value that will be in the certificate with the public key that your browser reads when it makes a connection:
That's just mind blowing to me so couldn't resist getting something going in AUT. After playing with this code, I got a much better understanding of how its not just that algorithm that makes this whole thing possible. The numbers that we pick to form the public key and n are just as important and also how important it is to be random!
Let me know if you have any problems. Enjoy!
#include <array.au3> _Toy_RSA_Example() ;https://thatsmaths.com/2016/08/11/a-toy-example-of-rsa-encryption/ Func _Toy_RSA_Example() Local $p, $q, $n, $nT, $e, $d Local $aPublicKeys, $aCrypt, $sDecrypt, $sMsg ;Pick two random primes (they will be between 1000-10000) $p = _GetRandomPrime() $q = _GetRandomPrime() $sMsg = 'p= %i \t\t| Prime 1 - [NOT SHARED!]\nq= %i \t\t| Prime 2 - [NOT SHARED!]\n' ;Calculate lowest common multiple $nT = _LCM($p - 1, $q - 1) $sMsg &= 'nT= %i \t| _LCM(p - 1,q - 1) - [NOT SHARED!]\n' ;Calculate n. This is a shared number $n = $p * $q $sMsg &= 'n= %i \t| p * q - [Shared]\n' ;Get a small random list of possible public keys to pick from. Only searching for 100ms $aPublicKeys = _GetPublicKeys($nT) _ArrayDisplay($aPublicKeys, "Possible Public Keys Found") ;Pick a random public (encryption) key from array $e = $aPublicKeys[Random(1, $aPublicKeys, 1)] $sMsg &= 'e= %i \t| Public (Encryption) Key - [Shared]\n' ;Generate our private (decryption) key $d = _GetPrivateKey($e, $nT) $sMsg &= 'd= %i \t| Private (Decryption) Key - [NOT SHARED!]\n' ;format our msg (rsa details) to encrypt $sMsg = StringFormat($sMsg, $p, $q, $nT, $n, $e, $d) ;encrypt message $aCrypt = _RSA($sMsg, $e, $n) _ArrayDisplay($aCrypt, 'Encrypted RSA messsage') ;Decrypt array back $sDecrypt = _RSA($aCrypt, $d, $n) MsgBox(0, 'Decrypted RSA messsage', $sDecrypt) EndFunc ;==>_Toy_RSA_Example ;Function will perfrom Mod($v ^ $key, $n) on each char/element. ;Excepts Arrays or Strings. If input is array a string is returned and vice versa. Func _RSA($vDat, $key, $n) Local $bIsStr = IsString($vDat) If $bIsStr Then $vDat = StringToASCIIArray($vDat) For $i = 0 To UBound($vDat) - 1 $vDat[$i] = _Modular($vDat[$i], $key, $n) Next Return $bIsStr ? $vDat : StringFromASCIIArray($vDat) EndFunc ;==>_RSA ;algorithm is from the book "Discrete Mathematics and Its Applications 5th Edition" by Kenneth H. Rosen. Func _Modular($iBase, $iExp, $iMod) ; Mod($v ^ $key, $n) Local $iPower = Mod($iBase, $iMod) Local $x = 1 For $i = 0 To (4 * 8) - 1 If BitAND(0x00000001, BitShift($iExp, $i)) Then $x = Mod(($x * $iPower), $iMod) EndIf $iPower = Mod(($iPower * $iPower), $iMod) Next Return $x EndFunc ;==>_Modular ;Generate a "random" list of possible valid public keys to choose from based on $nT Func _GetPublicKeys($nT, $iMs = 100) Do Local $aKeys = , $iTime = TimerInit() Local $i = (Mod(@SEC, 2) ? Int($nT / 2) : Int($nT / 4)) ; randomize where we start Do If _IsPrime($i) And _IsCoPrime($i, $nT) Then $aKeys += 1 $aKeys[$aKeys] = $i EndIf $i += (Mod(@MSEC, 2) ? 1 : 100) ; randomize step size Until ($i >= ($nT - 1)) Or (TimerDiff($iTime) > $iMs) ReDim $aKeys[$aKeys + 1] Until $aKeys > 5 ; Ive seen 200+ returned sometimes and 0 on others. Make sure we have at least a few choices Return $aKeys EndFunc ;==>_GetPublicKeys ;https://www.geeksforgeeks.org/multiplicative-inverse-under-modulo-m/ - _ModInverse(a,m) Func _GetPrivateKey($a, $m) If ($m = 1) Then Return 0 ; Local $t, $q, $y = 0, $x = 1, $m0 = $m While ($a > 1) $q = Int($a / $m) ;q is quotient $t = $m ; $m = Mod($a, $m) ;m is remainder now, process same as Euclid's algo $a = $t ; $t = $y ; $y = $x - $q * $y ;Update y and x $x = $t ; WEnd Return $x < 0 ? $x + $m0 : $x EndFunc ;==>_GetPrivateKey ;Pick the next nearest prime from a random number (or number you cho0se) Func _GetRandomPrime($iStart = Default) Local $iPrime = ($iStart = Default ? Random(1000, 10000, 1) : $iStart) Do $iPrime += 1 Until _IsPrime($iPrime) Return $iPrime EndFunc ;==>_GetRandomPrime #Region Math Functions Func _IsPrime($n) For $i = 2 To (Int($n ^ 0.5) + 1) If Mod($n, $i) = 0 Then Return False Next Return True EndFunc ;==>_IsPrime Func _IsCoPrime($a, $b) Return _GCD($a, $b) = 1 EndFunc ;==>_IsCoPrime Func _GCD($iX, $iY) Local $iM While 1 $iM = Mod($iX, $iY) If $iM = 0 Then Return $iY $iX = $iY $iY = $iM WEnd EndFunc ;==>_GCD Func _LCM($iX, $iY) Return ($iX * $iY) / _GCD($iX, $iY) EndFunc ;==>_LCM #EndRegion Math Functions
You should get a message box displaying the decrypted message with details of the values used:
I know the title sounds weird, but i couldn't find better words for it...
I finally managed to have a working image search (yes yes i know image search is evil :p).
I noticed that even if the script is compiled, the images have to be in my script folder.
But i don't want that the images i'm searching for on the screen can be viewed, edited etc by every user.
Is there a way to... uhm... put them in a file like .rar, but one that can't be easily opened? 🤔
Edit: Now that i think of .rar, maybe using a .rar which is protected by a password... Can autoit search, open, extract, use and delete that? (I guess so, I didn't search for this yet, going to google that asap)