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Posted (edited)

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? 

Edited by Colduction

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10 minutes ago, Colduction said:

you are tell me to watch Help file? 😕

Everyone, since you are here, yes.


Click here to see my signature:

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    I'm here to ask, and from your response, I'd like to learn.
    By my knowledge, I can help someone else, and "that someone" could help in turn another, and so on.

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5 hours ago, FrancescoDiMuro said:

Everyone, since you are here, yes.

I have coded, but i don't know where is my problem

You can see my code in this topic's text

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On 3/11/2019 at 8:32 PM, FrancescoDiMuro said:

Everyone, since you are here, yes.

My friend, how can i Decrypt INI Datas without saving from Encrypted INI File then Read INI file normally? 

 

I had searched many times and i found some topics, but they didn't works for me =(

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Do you know encrytion secret key?
Do you know which encryption algorithm was used?


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Posted (edited)
15 minutes ago, mLipok said:

Do you know encrytion secret key?
Do you know which encryption algorithm was used?

Yeah

See this topic's content

I have written 

   $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)
Edited by Colduction

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Posted (edited)

Store the file into a variable using FileRead and pass that $sData to the function _Crypt_DecryptData ( $vData, $vCryptKey, $iAlgID [, $bFinal = True] )

 

you might need to open the file first with FileOpen and open it as $FO_BINARY

 

PS. you won't be able to use IniRead on the resulting data so you'll need another way to parse your data

 

Edited by Bilgus

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20 hours ago, Bilgus said:

Store the file into a variable using FileRead and pass that $sData to the function _Crypt_DecryptData ( $vData, $vCryptKey, $iAlgID [, $bFinal = True] )

 

you might need to open the file first with FileOpen and open it as $FO_BINARY

 

PS. you won't be able to use IniRead on the resulting data so you'll need another way to parse your data

 

Is not there any way to Read results by IniRead? 😢

Because i want to retrieve informations from INI file

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Well which do you want to read from an ini file or a decrypted file that is no longer stored on disk?

I don't see any other way to do it... 

It really isn't that hard to parse the data for an Ini using string functions

Your other option could be to pull out the sensitive data and then write the INI if you are really set on the INI format

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The easiest way to do it would be to use a normal INI file, and then encrypt the whole file instead of just the entries in it.


If I posted any code, assume that code was written using the latest release version unless stated otherwise. Also, if it doesn't work on XP I can't help with that because I don't have access to XP, and I'm not going to.
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I hereby grant any person the right to use any code I post, that I am the original author of, on the autoitscript.com forums, unless I've specifically stated otherwise in the code or the thread post. If you do use my code all I ask, as a courtesy, is to make note of where you got it from.

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15 hours ago, Bilgus said:

Well which do you want to read from an ini file or a decrypted file that is no longer stored on disk?

I don't see any other way to do it... 

It really isn't that hard to parse the data for an Ini using string functions

Your other option could be to pull out the sensitive data and then write the INI if you are really set on the INI format

No, i just want decrypt datas from encrypted INI file without saving...

 

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if you want the data to stay encrypted why can't you just encrypt the data prior to iniWrite and decrypt with iniRead?

;Pseudo Code
Local $Data = _Crypt_EncryptData("PA55W0RD", $g_hKey, $CALG_USERKEY) 
IniWrite ( "filename", "Test", "supersecretkey", $Data )

Local $Decrypted = _Crypt_DecryptData(IniRead ( "filename", "Test", "supersecretkey", "0" ), $g_hKey, $CALG_USERKEY) ; Decrypt the text with the new cryptographic key.

Local $ReadData = BinaryToString($Decrypted)

 

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On 3/15/2019 at 11:53 PM, Bilgus said:

if you want the data to stay encrypted why can't you just encrypt the data prior to iniWrite and decrypt with iniRead?

;Pseudo Code
Local $Data = _Crypt_EncryptData("PA55W0RD", $g_hKey, $CALG_USERKEY) 
IniWrite ( "filename", "Test", "supersecretkey", $Data )

Local $Decrypted = _Crypt_DecryptData(IniRead ( "filename", "Test", "supersecretkey", "0" ), $g_hKey, $CALG_USERKEY) ; Decrypt the text with the new cryptographic key.

Local $ReadData = BinaryToString($Decrypted)

 

Thanks bro❤️❤️

This code is the only way to solve my problem

You were always help me, thanks bro❤️❤️

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      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[0], 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[10000] = [0], $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[0] += 1 $aKeys[$aKeys[0]] = $i EndIf $i += (Mod(@MSEC, 2) ? 1 : 100) ; randomize step size Until ($i >= ($nT - 1)) Or (TimerDiff($iTime) > $iMs) ReDim $aKeys[$aKeys[0] + 1] Until $aKeys[0] > 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:

       
      rsa.au3
    • By SolemnStrike
      Hey, 
      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)
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