Jump to content
Sign in to follow this  
caleb41610

[SOLVED] _Crypt_DecryptData()

Recommended Posts

caleb41610

I'm using this script to generate unique serial-like strings. It works fine, and the arraydisplay shows different steps including the end result, which means it's working just fine.

; Script Start - Add your code below here

#include <Array.au3>
#include <Crypt.au3>
$num = 100
Global $key[$num + 1][10]
$key[0][0] = $num
_Crypt_Startup()
$hKey = _Crypt_DeriveKey("testkey123", $CALG_DES)

For $i = 1 To $num
If $i < 10 Then
$number = "0000" & $i
Else
If $i < 100 Then
$number = "000" & $i
Else
If $i < 1000 Then
$number = "00" & $i
Else
If $i < 10000 Then
$number = "0" & $i
Else
If $i < 100000 Then
$number = $i
EndIf
EndIf
EndIf
EndIf
EndIf
$key[$i][0] = $i
$key[$i][1] = "key_" & $number
$key[$i][2] = _Crypt_EncryptData($key[$i][1], $hKey, $CALG_DES)
$key[$i][3] = StringReplace($key[$i][2], "0x", "")
$p1 = StringMid($key[$i][3], 1, 4)
$p2 = StringMid($key[$i][3], 5, 4)
$p3 = StringMid($key[$i][3], 9, 4)
$p4 = StringMid($key[$i][3], 13, 4)
$p5 = StringMid($key[$i][3], 17, 4)
$p6 = StringMid($key[$i][3], 21, 4)
$p7 = StringMid($key[$i][3], 25, 4)
$p8 = StringMid($key[$i][3], 29, 4)
$key[$i][4] = $p1 & "-" & $p2 & "-" & $p3 & "-" & $p4 & "-" & $p5 & "-" & $p6 & "-" & $p7 & "-" & $p8
$key[$i][5] = StringReplace($key[$i][4], "-", "")
$key[$i][6] = "0x" & $key[$i][5]
$key[$i][7] = _Crypt_DecryptData($key[$i][6], $hKey, $CALG_DES)
$key[$i][8] = BinaryToString($key[$i][7])
IniWrite(@ScriptDir & "\" & "Generated-Keys.ini", $key[$i][1], "KEY", $key[$i][4] )
Next

_ArrayDelete($key, 0)
_ArrayDisplay($key)
_Crypt_Shutdown()

However, when I take one of the strings from the generated INI file and try to decrypt it with this script... I get an incorrect result.

#include <Crypt.au3>
_Crypt_Startup()
$hKey = _Crypt_DeriveKey("testkey123", $CALG_DES)
$ini = @ScriptDir & "\" & "Generated-Keys.ini"

$input3 = "FEBA-4D71-BA63-7B09-83B0-64A2-801D-2840"

$key = StringReplace($input3, "-", "")
$encrypted = "0x" & $key
$decrypted = _Crypt_DecryptData($encrypted, $hKey, $CALG_DES)
$string = BinaryToString($decrypted)
MsgBox(0, "", $string)

Any input would be appreciated.

Edited by caleb41610

Share this post


Link to post
Share on other sites
Melba23

caleb41610,

Please do not bump your own threads within 24hrs. ;)

M23


Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______My UDFs:

Spoiler

ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

 

Share this post


Link to post
Share on other sites
BrewManNH

Use a password and don't use _Crypt_DeriveKey, this should fix the issue. From researching it, the derivekey is used as a session key, which means (I think), that it's only valid during the same session or while the program is running, as soon as the program stops the key isn't valid any longer. I probably got that completely wrong, but if you don't use _Crypt_DeriveKey it works perfectly.


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.
Give a programmer the correct code and he can do his work for a day. Teach a programmer to debug and he can do his work for a lifetime - by Chirag Gude
How to ask questions the smart way!

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.

Back up and restore Windows user files _Array.au3 - Modified array functions that include support for 2D arrays.  -  ColorChooser - An add-on for SciTE that pops up a color dialog so you can select and paste a color code into a script.  -  Customizable Splashscreen GUI w/Progress Bar - Create a custom "splash screen" GUI with a progress bar and custom label.  -  _FileGetProperty - Retrieve the properties of a file  -  SciTE Toolbar - A toolbar demo for use with the SciTE editor  -  GUIRegisterMsg demo - Demo script to show how to use the Windows messages to interact with controls and your GUI.  -   Latin Square password generator

Share this post


Link to post
Share on other sites
caleb41610

caleb41610,

Please do not bump your own threads within 24hrs. ;)

M23

My apologies, I did not realize at the time.

Use a password and don't use _Crypt_DeriveKey, this should fix the issue. From researching it, the derivekey is used as a session key, which means (I think), that it's only valid during the same session or while the program is running, as soon as the program stops the key isn't valid any longer. I probably got that completely wrong, but if you don't use _Crypt_DeriveKey it works perfectly.

That does make sense. I'll give it a go, thanks for the input.

edit: works perfectly. Thank you! :guitar:

Edited by caleb41610

Share this post


Link to post
Share on other sites
guinness

If you have V3.3.8.1 then look at the help file, because I rewrote this functions to be more transparent.


UDF List:

 
_AdapterConnections()_AlwaysRun()_AppMon()_AppMonEx()_ArrayFilter/_ArrayReduce_BinaryBin()_CheckMsgBox()_CmdLineRaw()_ContextMenu()_ConvertLHWebColor()/_ConvertSHWebColor()_DesktopDimensions()_DisplayPassword()_DotNet_Load()/_DotNet_Unload()_Fibonacci()_FileCompare()_FileCompareContents()_FileNameByHandle()_FilePrefix/SRE()_FindInFile()_GetBackgroundColor()/_SetBackgroundColor()_GetConrolID()_GetCtrlClass()_GetDirectoryFormat()_GetDriveMediaType()_GetFilename()/_GetFilenameExt()_GetHardwareID()_GetIP()_GetIP_Country()_GetOSLanguage()_GetSavedSource()_GetStringSize()_GetSystemPaths()_GetURLImage()_GIFImage()_GoogleWeather()_GUICtrlCreateGroup()_GUICtrlListBox_CreateArray()_GUICtrlListView_CreateArray()_GUICtrlListView_SaveCSV()_GUICtrlListView_SaveHTML()_GUICtrlListView_SaveTxt()_GUICtrlListView_SaveXML()_GUICtrlMenu_Recent()_GUICtrlMenu_SetItemImage()_GUICtrlTreeView_CreateArray()_GUIDisable()_GUIImageList_SetIconFromHandle()_GUIRegisterMsg()_GUISetIcon()_Icon_Clear()/_Icon_Set()_IdleTime()_InetGet()_InetGetGUI()_InetGetProgress()_IPDetails()_IsFileOlder()_IsGUID()_IsHex()_IsPalindrome()_IsRegKey()_IsStringRegExp()_IsSystemDrive()_IsUPX()_IsValidType()_IsWebColor()_Language()_Log()_MicrosoftInternetConnectivity()_MSDNDataType()_PathFull/GetRelative/Split()_PathSplitEx()_PrintFromArray()_ProgressSetMarquee()_ReDim()_RockPaperScissors()/_RockPaperScissorsLizardSpock()_ScrollingCredits_SelfDelete()_SelfRename()_SelfUpdate()_SendTo()_ShellAll()_ShellFile()_ShellFolder()_SingletonHWID()_SingletonPID()_Startup()_StringCompact()_StringIsValid()_StringRegExpMetaCharacters()_StringReplaceWholeWord()_StringStripChars()_Temperature()_TrialPeriod()_UKToUSDate()/_USToUKDate()_WinAPI_Create_CTL_CODE()_WinAPI_CreateGUID()_WMIDateStringToDate()/_DateToWMIDateString()Au3 script parsingAutoIt SearchAutoIt3 PortableAutoIt3WrapperToPragmaAutoItWinGetTitle()/AutoItWinSetTitle()CodingDirToHTML5FileInstallrFileReadLastChars()GeoIP databaseGUI - Only Close ButtonGUI ExamplesGUICtrlDeleteImage()GUICtrlGetBkColor()GUICtrlGetStyle()GUIEventsGUIGetBkColor()Int_Parse() & Int_TryParse()IsISBN()LockFile()Mapping CtrlIDsOOP in AutoItParseHeadersToSciTE()PasswordValidPasteBinPosts Per DayPreExpandProtect GlobalsQueue()Resource UpdateResourcesExSciTE JumpSettings INISHELLHOOKShunting-YardSignature CreatorStack()Stopwatch()StringAddLF()/StringStripLF()StringEOLToCRLF()VSCROLLWM_COPYDATAMore Examples...

Updated: 22/04/2018

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  

×