Jump to content
Sign in to follow this  
AlecSadler

Multi-Level encryption algorithm.

Recommended Posts

AlecSadler

Hello friends! I have been working on an encryption algorithm in autoit as a proof of concept for some time now. Basically the algorithm uses a progressive recursion to encode data inside a matrix using a key that changes according to the date-time of the system, which is extracted from a larger key array. Recently after a drive failure, I lost the source and had to start from scratch, now I can't quite get it working the way it was before, and I can't see what I'm doing wrong, if anyone who understands matrix math or encryption could help I would much appreciate it. The problem is that the values returned by the decryption (extraction) process are way too big.

 

I have figured out the solution to my problem, it was a typo, please disregard this thread.

I will post my project into example scripts when it's ready.

 

 

 

Edited by AlecSadler

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Similar Content

    • RTFC
      By RTFC
      The Eigen C++ template library is a great environment for matrix computing; it is fast, reliable, extensive, and well-documented. It is also completely free, and does not rely on any external dependencies. Unfortunately for AutoIt users, the term “template library” implies that any functions you call are only instantiated upon compilation (in C++). That means there's nothing to hook into.
      To make Eigen ’s most important functionality directly accessible from within AutoIt scripts (version 3.3.12+, download it here), I developed the Eigen4AutoIt environment. It runs on Windows and under Wine also on Linux and Mac (Ubuntu, Debian, Fedora, and MacOS supported by WineHQ), and SUSE, Slackware, and FreeBSD supported by the distros).
      >Download the latest version

      It consists of:
      1) Eigen4AutoIt.au3
      an AutoIt library of wrapper functions that contain extensive bounds checks, matrix management, file I/O, type conversion, and precision control, and two-way data exchange with files and native AutoIt arrays;
      2) Eigen-wrapper dlls (EigenDense.dll, EigenDense_x64.dll)
      re-maps matrices created in AutoIt as Eigen Matrix objects, then calls Eigen’s powerful core functions; the single-precision part of the C++ source code I wrote is included in the bundle (the double-precision, integer, and complex alternatives just duplicate this with different memory mappings and variable types). The basic functions consist of a single Eigen call; decompositions and statistics are more involved. 3) Additional materials:
      the user-interactive, animated Function Selector and MatrixViewer tools the MatrixFileConverter to read/write E4A matrices from/to .csv ASCII, Excel, and Xbase files. three libraries of scientific and mathematical constants online Help Large (.chm) Help file Quickstart Manual (11-page pdf, updated) Test suite Tutorials from Basics to Advanced Please note:
      none of this is part of Eigen's own distribution you only need this bundle; you do not need to install Eigen. How it works:
      No matrix content is ever transferred, only memory pointers, meaning computations in AutoIt are virtually as fast as in Eigen’s native environment, with the added advantage of not having to be compiled first. The drawback is that Eigen's native ad-hoc expression templates (and their internal optimisations) cannot be exploited here; you have to construct your operations with the basic building blocks. These provide matrix creation, I/O, cellwise operations, reduction, multiplication, transformation, decomposition (LU, Householder, Choleski, and Jacobi SVD; these include general linear solvers) and a small statistics module by yours truly.

      IMPORTANT: Posting Rules for this thread:
       
      1) Do not post or PM me any matrix-, maths-, or Eigen-related questions. Eigen has its own User Forum for that (or try math.stackExchange.com). I am not your maths guru! If you post such questions, I will either ignore your post or remind you of this rule.

      2) Do not post or PM me your data sets and/or non-working Eigen4AutoIt scripts; I will not analyse your data or fix your scripts for you! There are many reasons why a linear algebra procedure might fail to produce the answer you expect. You are wielding great mathematical power here, so exploit the fantastic internet resources at your fingertips and learn how to use it. To get you started, I've listed a few video tutorials and other helpful materials in the header remarks of Eigen4AutoIt.au3. Also check out the test scripts, the Tutorials, and the Help file.

      3) I do warmly welcome all of the following:
      remarks, advice, suggestions for improvements, encouragement, cash; bug reports re. the Eigen4AutoIt interface (individual functions that don't work the way they should) and/or the associated dll code (ditto); your own working Eigen4AutoIt templates of general use that you'd like to see implemented in a future release. Regarding that last item, have a look at my PCA tutorial. After the step-by-step stage, I summarise the entire procedure in a "mini script" of Eigen4AutoIt calls. Then I introduce the two internal PCA functions I developed, which replace that script with two simple calls. You can do the same thing, and submit your own functional Eigen4AutoIt script in this thread. If I consider it of general use and can implement it, it may become a new Eigen4AutoIt function in the next release (with source acknowledgement, of course). This means that you'd get a precompiled dll version of your script that will likely run faster and be simpler to call. Thereby this thread would become an Eigen4AutoIt Example Scripts mini forum. It's just a thought.
       
      >Download the latest version (uncompressed size: 52.6 MB)
       
      How to Install
      You need AutoIt version 3.3.12 or later. Extraction (with 7-zip) creates subdirectory Eigen4AutoIt, where you'll find Eigen4AutoIt.ini. Open it, find global variable $EIGEN_DLLPATH, and copy/paste the full absolute path (without trailing backslash) where the Eigen4AutoIt dlls are located on your machine. Save the ini file, open the first tutorial ("intro") in Scite, and start it. This shows basic matrix I/O and mode switching (single versus double precision). If that runs, you're in business.
    • colombeen
      By colombeen
      Hi everyone, I created a function to gather bitlocker information. It can tell you whether or not a drive is protected, which encryption method is being used, ...
      I tried to cover all the details in the function description
       
      The function (and 3 "internal" functions) :
      ; #FUNCTION# ==================================================================================================================== ; Name...........: _BitlockerDriveInfo ; Description ...: Get Bitlocker information for one or multiple drives ; Syntax.........: _BitlockerDriveInfo([$sDrive[, $sComputer = @ComputerName[, $bDebug = False]]]) ; Parameters ....: $sDrive - Optional: The drive. Allowed values are: ; |"" - Get the info for all available drives ; |Letter: - Get the info for the specific drive ; $sComputer - Optional: The computer from which the info should be requested ; $bDebug - Optional: Shows the hex ReturnValue from the WMI methods if set to True ; Return values .: Success - Returns a 2D array with the following information ; |[string] Drive Letter ; |[string] Drive Label ; |[string] Volume Type ; |[bool] Initialized For Protection ; |[string] Protection Status ; |[string] Lock Status ; |[bool] Auto Unlock Enabled ; |[bool] Auto Unlock Key Stored ; |[string] Conversion Status ; |[string] Encryption Method ; |[int] Encryption Percentage ; |[string] Wiping Status ; |[int] Wiping Percentage ; |[array] Key Protectors (Or [string] "None" if the drive isn't protected) ; Failure - 0, sets @error to: ; |1 - There was an issue retrieving the COM object. @extended returns error code from ObjGet ; |2 - The specified drive in $Drive doesn't exist ; |3 - There was an issue running the WMI query ; Author ........: colombeen ; Modified.......: ; Remarks .......: Requires to be run with admin elevation. Windows Vista or newer! ; A BIG THANKS to everyone from the community who contributed! ; Related .......: ; Link ..........: ; Example .......: #include <Array.au3> ; $Header = "Drive Letter|Drive Label|Volume Type|Initialized For Protection|Protection Status|" & _ ; "Lock Status|Auto Unlock Enabled|Auto Unlock Key Stored|Conversion Status|Encryption " & _ ; "Method|Encryption Percentage|Wiping Status|Wiping Percentage|Key Protectors" ; _ArrayDisplay(_BitlockerDriveInfo(), "Bitlocker Drive Info", "", 64, Default, $Header) ; =============================================================================================================================== Func _BitlockerDriveInfo($sDrive = "", $sComputer = @ComputerName, $bDebug = False) Local $aConversionStatusMsg[7] = ["Unknown", "Fully Decrypted", "Fully Encrypted", "Encryption In Progress", "Decryption In Progress", "Encryption Paused", "Decryption Paused"] Local $aEncryptionMethodMsg[9] = ["Unknown", "None", "AES_128_WITH_DIFFUSER", "AES_256_WITH_DIFFUSER", "AES_128", "AES_256", "HARDWARE_ENCRYPTION", "XTS_AES_128", "XTS_AES_256"] Local $aKeyProtectorTypeMsg[11] = ["Unknown or other protector type", "Trusted Platform Module (TPM)", "External key", "Numerical password", "TPM And PIN", "TPM And Startup Key", "TPM And PIN And Startup Key", "Public Key", "Passphrase", "TPM Certificate", "CryptoAPI Next Generation (CNG) Protector"] Local $aLockStatusMsg[3] = ["Unknown", "Unlocked", "Locked"] Local $aProtectionStatusMsg[3] = ["Unprotected", "Protected", "Unknown"] Local $aVolumeTypeMsg[3] = ["Operating System Volume", "Fixed Data Volume", "Portable Data Volume"] Local $aWipingStatusMsg[5] = ["Unknown", "Free Space Not Wiped", "Free Space Wiped", "Free Space Wiping In Progress", "Free Space Wiping Paused"] Local $iRow = 0 Local $sRunMethod, $objWMIService, $objWMIQuery, $sDriveFilter, $iProtectionStatus, $iLockStatus, $bIsAutoUnlockEnabled, $bIsAutoUnlockKeyStored, $iConversionStatus, $iEncryptionPercentage, $iEncryptionFlags, $iWipingStatus, $iWipingPercentage, $iEncryptionMethod, $aVolumeKeyProtectorID, $aVolumeKeyProtectors, $iKeyProtectorType $objWMIService = ObjGet("winmgmts:{impersonationLevel=impersonate,authenticationLevel=pktPrivacy}!\\" & $sComputer & "\root\CIMV2\Security\MicrosoftVolumeEncryption") If @error Then Return SetError(1, @error, 0) If $sDrive <> "" Then Local $iDriveType = _WMIPropertyValue("DriveType", "Win32_LogicalDisk", "WHERE DeviceID='" & $sDrive & "'", Default, $sComputer) If @error Or ($iDriveType <> 2 And $iDriveType <> 3) Then Return SetError(2, 0, 0) $sDriveFilter = " WHERE DriveLetter='" & $sDrive & "'" EndIf $objWMIQuery = $objWMIService.ExecQuery("SELECT * FROM Win32_EncryptableVolume" & $sDriveFilter, "WQL", 0) If Not IsObj($objWMIQuery) Then Return SetError(3, 0, 0) Local $aResult[$objWMIQuery.count][14] For $objDrive In $objWMIQuery If $bDebug Then ConsoleWrite(@CRLF & "+> " & $objDrive.DriveLetter & @CRLF) If _WMIMethodExists($objDrive, "GetConversionStatus") Then $sRunMethod = $objDrive.GetConversionStatus($iConversionStatus, $iEncryptionPercentage, $iEncryptionFlags, $iWipingStatus, $iWipingPercentage) If $bDebug Then ConsoleWrite("!> GetConversionStatus 0x" & Hex($sRunMethod) & @CRLF) Else $iConversionStatus = -1 $iWipingStatus = -1 $iEncryptionPercentage = 0 $iWipingPercentage = 0 EndIf If _WMIMethodExists($objDrive, "GetEncryptionMethod") Then $sRunMethod = $objDrive.GetEncryptionMethod($iEncryptionMethod) If $bDebug Then ConsoleWrite("!> GetEncryptionMethod 0x" & Hex($sRunMethod) & @CRLF) Else $iEncryptionMethod = 0 EndIf If _WMIMethodExists($objDrive, "GetKeyProtectors") Then $sRunMethod = $objDrive.GetKeyProtectors("0", $aVolumeKeyProtectorID) If $bDebug Then ConsoleWrite("!> GetKeyProtectors 0x" & Hex($sRunMethod) & @CRLF) Else $aVolumeKeyProtectorID = 0 EndIf If _WMIMethodExists($objDrive, "GetLockStatus") Then $sRunMethod = $objDrive.GetLockStatus($iLockStatus) If $bDebug Then ConsoleWrite("!> GetLockStatus 0x" & Hex($sRunMethod) & @CRLF) Else $iLockStatus = -1 EndIf If _WMIMethodExists($objDrive, "GetProtectionStatus") Then $sRunMethod = $objDrive.GetProtectionStatus($iProtectionStatus) If $bDebug Then ConsoleWrite("!> GetProtectionStatus 0x" & Hex($sRunMethod) & @CRLF) Else $iProtectionStatus = 2 EndIf If _WMIMethodExists($objDrive, "IsAutoUnlockEnabled") Then $sRunMethod = $objDrive.IsAutoUnlockEnabled($bIsAutoUnlockEnabled) If $bDebug Then ConsoleWrite("!> IsAutoUnlockEnabled 0x" & Hex($sRunMethod) & @CRLF) Else $bIsAutoUnlockEnabled = "Unknown" EndIf If _WMIMethodExists($objDrive, "IsAutoUnlockKeyStored") Then $sRunMethod = $objDrive.IsAutoUnlockKeyStored($bIsAutoUnlockKeyStored) If $bDebug Then ConsoleWrite("!> IsAutoUnlockKeyStored 0x" & Hex($sRunMethod) & @CRLF) Else $bIsAutoUnlockKeyStored = "Unknown" EndIf If IsArray($aVolumeKeyProtectorID) And UBound($aVolumeKeyProtectorID) > 0 Then Dim $aVolumeKeyProtectors[UBound($aVolumeKeyProtectorID)][2] For $i = 0 To UBound($aVolumeKeyProtectorID) - 1 $aVolumeKeyProtectors[$i][0] = $aVolumeKeyProtectorID[$i] If _WMIMethodExists($objDrive, "GetKeyProtectorType") Then If $objDrive.GetKeyProtectorType($aVolumeKeyProtectorID[$i], $iKeyProtectorType) = 0 Then $aVolumeKeyProtectors[$i][1]= $aKeyProtectorTypeMsg[$iKeyProtectorType] Else $aVolumeKeyProtectors[$i][1]= "Unknown" EndIf Else $aVolumeKeyProtectors[$i][1] = "Unknown" EndIf Next Else $aVolumeKeyProtectors = "None" EndIf ; DriveLetter $aResult[$iRow][0] = $objDrive.DriveLetter ; DriveLabel $aResult[$iRow][1] = _WMIPropertyValue("VolumeName", "Win32_LogicalDisk", "WHERE DeviceID='" & $objDrive.DriveLetter & "'", Default, $sComputer) ; VolumeType If _WMIPropertyExists($objDrive, "VolumeType") Then $aResult[$iRow][2] = $aVolumeTypeMsg[$objDrive.VolumeType] Else If $objDrive.DriveLetter = _WMIPropertyValue("SystemDrive", "Win32_OperatingSystem", "", Default, $sComputer) Then $aResult[$iRow][2]= $aVolumeTypeMsg[0] ElseIf _WMIPropertyValue("DriveType", "Win32_LogicalDisk", "WHERE DeviceID='" & $objDrive.DriveLetter & "'", Default, $sComputer) = 3 Then $aResult[$iRow][2]= $aVolumeTypeMsg[1] ElseIf _WMIPropertyValue("DriveType", "Win32_LogicalDisk", "WHERE DeviceID='" & $objDrive.DriveLetter & "'", Default, $sComputer) = 2 Then $aResult[$iRow][2]= $aVolumeTypeMsg[2] Else $aResult[$iRow][2]= "Unknown" EndIf EndIf ; IsVolumeInitializedForProtection If _WMIPropertyExists($objDrive, "IsVolumeInitializedForProtection") Then $aResult[$iRow][3] = $objDrive.IsVolumeInitializedForProtection Else $aResult[$iRow][3] = "Unkown" EndIf ; ProtectionStatus $aResult[$iRow][4] = $aProtectionStatusMsg[$iProtectionStatus] ; LockStatus $aResult[$iRow][5] = $aLockStatusMsg[$iLockStatus + 1] ; IsAutoUnlockEnabled $aResult[$iRow][6] = $bIsAutoUnlockEnabled ; IsAutoUnlockEnabled $aResult[$iRow][7] = $bIsAutoUnlockKeyStored ; ConversionStatus $aResult[$iRow][8] = $aConversionStatusMsg[$iConversionStatus + 1] ; EncryptionMethod $aResult[$iRow][9] = $aEncryptionMethodMsg[$iEncryptionMethod + 1] ; EncryptionPercentage $aResult[$iRow][10] = $iEncryptionPercentage ; WipingStatus $aResult[$iRow][11] = $aWipingStatusMsg[$iWipingStatus + 1] ; WipingPercentage $aResult[$iRow][12] = $iWipingPercentage ; KeyProtectors $aResult[$iRow][13] = $aVolumeKeyProtectors $iRow += 1 Next _ArraySort($aResult) Return $aResult EndFunc ;==>_BitlockerDriveInfo Func _WMIPropertyExists($Object, $Property) If Not IsObj($Object) Then Return False For $sProperty In $Object.Properties_ If $sProperty.Name = $Property Then Return True Next Return False EndFunc ;==>_WMIPropertyExists Func _WMIMethodExists($Object, $Method) If Not IsObj($Object) Then Return False For $sMethod In $Object.Methods_ If $sMethod.Name = $Method Then Return True Next Return False EndFunc ;==>_WMIMethodExists Func _WMIPropertyValue($sProperty = "", $sClass = "", $sFilter = "", $sNamespace = Default, $sComputer = @ComputerName) Local $objWMIService, $objWMIQuery If $sClass = "" Or $sProperty = "" Then Return SetError(1, 0, 0) If $sFilter <> "" Then $sFilter = " " & $sFilter If $sNamespace = Default Then $sNamespace = "\root\CIMV2" $objWMIService = ObjGet("winmgmts:{impersonationLevel=impersonate,authenticationLevel=pktPrivacy}!\\" & $sComputer & $sNamespace) If @error Then Return SetError(2, @error, 0) $objWMIQuery = $objWMIService.ExecQuery("SELECT * FROM " & $sClass & $sFilter, "WQL", 0x30) If Not IsObj($objWMIQuery) Then Return SetError(3, 0, 0) For $objItem In $objWMIQuery For $Property In $objItem.Properties_ If $Property.Name = $sProperty Then Return $Property.Value EndIf Next Next Return SetError(4, 0, 0) EndFunc ;==>_WMIPropertyValue  
      Example 1:
      #RequireAdmin #include <array.au3> ; Get information on all available drives Global $test = _BitlockerDriveInfo() If @error Then ConsoleWrite("!> _BitlockerDriveInfo() error: " & @error & ". extended: " & @extended & @CRLF) ElseIf IsArray($test) Then _ArrayDisplay($test, "Bitlocker Drive Info", "", 64, Default, "Drive Letter|Drive Label|Volume Type|Initialized For Protection|Protection Status|Lock Status|Auto Unlock Enabled|Auto Unlock Key Stored|Conversion Status|Encryption Method|Encryption Percentage|Wiping Status|Wiping Percentage|Key Protectors") ; Display the Key Protectors for the first record If IsArray($test[0][13]) Then _ArrayDisplay($test[0][13]) EndIf Example 2:
      #RequireAdmin #include <array.au3> ; Get information on the C-drive of the current computer + show extra information in the console Global $test = _BitlockerDriveInfo("C:", @ComputerName, True) If @error Then ConsoleWrite("!> _BitlockerDriveInfo() error: " & @error & ". extended: " & @extended & @CRLF) ElseIf IsArray($test) Then ConsoleWrite("Bitlocker information on the " & $test[0][0] & " drive" & @CRLF) ConsoleWrite("Protection Status: " & $test[0][4] & @CRLF) EndIf  
      Screenshot for the first example:

       
      Suggestions? Bugs?
      Just let me know
       
      TODO:
      ???  
      Version 1.0:
      Initial release Version 1.1:
      Fixed: Drive Label will not work when you request the information from a remote system (currently using DriveGetLabel) Fixed: The current fix for the missing VolumeType property in some Windows versions will only work locally Added: New internal function (_WMIPropertyValue()) Version 1.2:
      Fixed: The drive exists & drive type check only worked locally when a drive was specified in $sDrive
    • colombeen
      By colombeen
      Hi guys,
      I'm trying to get some information using WMI, from the Win32_EncryptableVolume class.
      I exec my query, filter out the C-drive, but when I need more info using the objects methods, I only get 1 value back and I can't seem to retrieve the other out params that should be there.
      A very minimal version of what I'm trying to do (no error checking etc, very basic). You need to start SciTE as admin or you won't see any results in the console!
      #RequireAdmin $strComputer = @ComputerName $objWMIService = ObjGet("winmgmts:{impersonationLevel=impersonate}!\\" & $strComputer & "\root\CIMV2\Security\MicrosoftVolumeEncryption") $objWMIQuery = $objWMIService.ExecQuery("SELECT * FROM Win32_EncryptableVolume WHERE DriveLetter='C:'", "WQL", 0) For $objDrive In $objWMIQuery ConsoleWrite("> " & $objDrive.GetConversionStatus() & @CRLF) ConsoleWrite("> " & $objDrive.GetConversionStatus().ConversionStatus & @CRLF) ConsoleWrite("> " & $objDrive.GetConversionStatus().EncryptionPercentage & @CRLF) Next The result from the console is : 
      > 0 > > What I'm expecting to get back is : 
      > 0 > 0 > 0 When using powershell I get this (run as admin is required!!!) : 
      PS C:\WINDOWS\system32> (Get-WmiObject -namespace "Root\cimv2\security\MicrosoftVolumeEncryption" -ClassName "Win32_Encryptablevolume" -Filter "DriveLetter='C:'").GetConversionStatus() ... ConversionStatus : 0 EncryptionFlags : 0 EncryptionPercentage : 0 ReturnValue : 0 ... All I seem to be getting is the ReturnValue when I use the method.
      I've tried this on multiple methods, always ending up with the same result
      Anyone here who has experience with this type of thing?
       
      Greetz
      colombeen
    • RTFC
      By RTFC
      Eigen4AutoIt Features:
      free, fast matrix computing environment for Windows (runs under Wine on Linux and Mac) built upon the robust Eigen code base (open-source), with many enhancements simple, intuitive functions, with extensive online documentation supports integer, single, and double precision, in real and complex matrices Tutorials with scripts, plus Test scripts for each function section easily exchange data between native binary files (.mat) and ASCII, Excel, and Xbase files, or AutoIt arrays 32-bit (x86-mode) and 64-bit (x64-mode) support in x64-mode, matrices can be any size that fits into available virtual memory (>4GB), and can be shared between processes over one thousand alias wrappers for flexibility and ease-of-use  
      The Eigen4AutoIt thread is here:
      This computing environment allows you to do matrix I/O (memory & files), matrix arithmetic, transformation, reduction, and decomposition, solve systems of linear equations, and perform statistics. Most functions can act on integer, real, or complex matrices (or the latter's real/imaginary parts separately). Much of the actual complexity of using Eigen in its native C++ environment has been hidden for AutoIt users, through extensive bounds and error checks, an intuitive function-naming convention, a large help file, and detailed tutorials and test examples.
    • careca
      By careca
      Let's say you have some files you dont want anyone to know what they are,
      and you dont want anyone to be able to open them, you could encrypt them,
      but if the files are big it'll take a long time to do the operations for you to be able to open those files.
      I made this to make this process faster, and still not easy for someone to open the files, or even know what type they are.
      What it does is change the filename to a random number with 8 digits and .inc extension.
      The original filename is encrypted in the file itself, with a PIN provided by the user up to 4 digits, this PIN is also a number that's going to be used to split the file and change it internally, so the end result is a file with a header that's got the original filename encrypted, and the rest of the file scrambled a bit.
      The way it works is simple, place the application in a folder where you want to hide the files, it will ask for a pin, after you press ok, the application asks :
      Encrypt or decrypt?
      If encrypt, the files will become the 8 digit .inc files.
      The originals will stay, the user can delete the originals or do whatever.
      Then to open the files back, same process, but this time choose decrypt, and a listview will show the random filenames and the corresponding decrypted/original filenames and extension, uppon double click they open with whatever application is the default for them. There's a search feature, and an "extract all" button, to get all files back to original/unencrypted versions.
      Feedback is wellcome.
×