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abc encryption

erifash

By erifash,
in AutoIt Example Scripts

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Insolence Universalist

Insolence

Posted
Posted (edited)

EDIT: I don't understand what you mean by 'tieing' into your program?

Speed test:

Fixed the problem I had with LF on my script (ended up being the Mod section).

The only problem with the test is the timers, can't get them to work correctly. Regardless, here's the results on my computer:

Using 'shifts':

2ms encrypting

21ms decrypting (3ms when doing it seperate)

Using 'ifs':

15ms encrypting

24ms decrypting

End result:

Over 1000% speed improvement encrypting, decrypting 20~% speed improvement. I don't think I'm using the timers right.

encryption.au3

test.au3

Edited by Insolence
"I thoroughly disapprove of duels. If a man should challenge me, I would take him kindly and forgivingly by the hand and lead him to a quiet place and kill him." - Mark TwainPatient: "It hurts when I do $var_"Doctor: "Don't do $var_" - Lar.
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Insolence Universalist

Insolence

Posted
Posted

Dat... mine is just as 'secure' as yours and many, many times faster. The point is how easy it is to modify.

"I thoroughly disapprove of duels. If a man should challenge me, I would take him kindly and forgivingly by the hand and lead him to a quiet place and kill him." - Mark TwainPatient: "It hurts when I do $var_"Doctor: "Don't do $var_" - Lar.
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erifash Universalist

erifash

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Posted (edited)

Dat... mine is just as 'secure' as yours and many, many times faster.  The point is how easy it is to modify.

<{POST_SNAPBACK}>

Ours is actually more secure because it not only shifts characters depending on if they are even or odd but the fact that it scrambles the character positions before and after encryption, so that even if you are able to decrypt the first layer of encryption you wouldn't be able to get past the other two because you won't even realize that is halfway encrypted text. You'll just think that it's another failed decryption attempt. The trick is with multiple lavers you make it more secure and if you keep it the same size (bytes) that it doesn't inflate like hex (ex. 30=3330 in hex). Yours is undoubtedly many times faster but ours is great for securely encrypting small amounts of text.

Anyways... :)

Like the new fade-in/out? It works perfectly on my 3.2 gHz but on my 1.7 gHz the fade-out is kinda glitchy.

#NoTrayIcon
#include <GUIConstants.au3>

$w = 300
$h = 200
$l = ( @DesktopWidth - $w ) / 2
$t = ( @DesktopHeight - $h ) / 2
$win = "abc encryption"
$already = 0

$gui = GUICreate($win, $w, $h, $l, -1 * $h, $WS_MINIMIZEBOX + $WS_SYSMENU)
$edit = GUICtrlCreateEdit("", 0, 0, $w - 5, $h - 51, $ES_WANTRETURN + $ES_MULTILINE + $WS_TABSTOP + $ES_AUTOVSCROLL + $ES_AUTOHSCROLL + $WS_VSCROLL + $WS_HSCROLL)
$encrypt = GUICtrlCreateButton("E n c r y p t", 0, $h - 51, ($w / 3) - 2, 20)
$decrypt = GUICtrlCreateButton("D e c r y p t", ($w / 3) - 2, $h - 51, ($w / 3) - 2, 20)
$clipboard = GUICtrlCreateButton("C o p y", ($w / 3 * 2) - 4, $h - 51, ($w / 3) - 2, 20)

GUISetState()

GUISetBkColor("0xFFFFFF", $gui)

GUICtrlSetState($edit, $GUI_FOCUS)

WinSetOnTop($win, "", 1)
WinSetTrans($win, "", 100)

Global $n_ot = 0
For $i = -1 * $h to $t step 10
  $n_ot = $n_ot + 1
Next

$n_st = 0
For $i = -1 * $h to $t step 10
  $n_st = $n_st + 1
  WinMove($win, "", $l, $i)
  WinSetTrans($win, "", (255 * $n_st) / $n_ot)
Next

While 1
  $msg = GUIGetMsg()
  Select
    Case $msg = $GUI_EVENT_CLOSE
      outex()
      Exit
    Case WinActive($win) and not $already
      $already = 1
      HotkeySet("^a", "selectall")
    Case not WinActive($win) and $already
      $already = 0
      HotkeySet("^a")
    Case $msg = $decrypt
      $sz_enc = GUICtrlRead($edit)
      GUICtrlSetData($edit, "")
      GUICtrlSetData($edit, "Decrypting...")
      $sz_enc = _Scramble($sz_enc)
      $sz_tmptxt = ""
      For $i = 1 to StringLen($sz_enc)
        $sz_tmptxt = $sz_tmptxt & abcdef(StringMid($sz_enc, $i, 1))
      Next
      $sz_tmptxt = _Scramble($sz_tmptxt)
      GUICtrlSetData($edit, "")
      GUICtrlSetData($edit, $sz_tmptxt)
    Case $msg = $encrypt
      $sz_dec = GUICtrlRead($edit)
      GUICtrlSetData($edit, "")
      GUICtrlSetData($edit, "Encrypting...")
      $sz_dec = _Unscramble($sz_dec)
      $sz_tmptxt = ""
      For $i = 1 to StringLen($sz_dec)
        $sz_tmptxt = $sz_tmptxt & abcdef(StringMid($sz_dec, $i, 1))
      Next
      $sz_tmptxt = _Unscramble($sz_tmptxt)
      GUICtrlSetData($edit, "")
      GUICtrlSetData($edit, $sz_tmptxt)
    Case $msg = $clipboard
      ClipPut(GUICtrlRead($edit))
  EndSelect
  Sleep(1)
Wend

Func abcdef($sz_t)
  If StringIsUpper($sz_t) Then
    If $sz_t = "A" Then Return "C"
    If $sz_t = "C" Then Return "A"
    If $sz_t = "B" Then Return "D"
    If $sz_t = "D" Then Return "B"
    If $sz_t = "E" Then Return "G"
    If $sz_t = "G" Then Return "E"
    If $sz_t = "F" Then Return "H"
    If $sz_t = "H" Then Return "F"
    If $sz_t = "I" Then Return "K"
    If $sz_t = "K" Then Return "I"
    If $sz_t = "J" Then Return "L"
    If $sz_t = "L" Then Return "J"
    If $sz_t = "M" Then Return "O"
    If $sz_t = "O" Then Return "M"
    If $sz_t = "N" Then Return "P"
    If $sz_t = "P" Then Return "N"
    If $sz_t = "Q" Then Return "S"
    If $sz_t = "S" Then Return "Q"
    If $sz_t = "R" Then Return "T"
    If $sz_t = "T" Then Return "R"
    If $sz_t = "U" Then Return "W"
    If $sz_t = "W" Then Return "U"
    If $sz_t = "V" Then Return "X"
    If $sz_t = "X" Then Return "V"
    If $sz_t = "Y" Then Return "Z"
    If $sz_t = "Z" Then Return "Y"
  EndIf
  If $sz_t = "a" Then Return "c"
  If $sz_t = "c" Then Return "a"
  If $sz_t = "b" Then Return "d"
  If $sz_t = "d" Then Return "b"
  If $sz_t = "e" Then Return "g"
  If $sz_t = "g" Then Return "e"
  If $sz_t = "f" Then Return "h"
  If $sz_t = "h" Then Return "f"
  If $sz_t = "i" Then Return "k"
  If $sz_t = "k" Then Return "i"
  If $sz_t = "j" Then Return "l"
  If $sz_t = "l" Then Return "j"
  If $sz_t = "m" Then Return "o"
  If $sz_t = "o" Then Return "m"
  If $sz_t = "n" Then Return "p"
  If $sz_t = "p" Then Return "n"
  If $sz_t = "q" Then Return "s"
  If $sz_t = "s" Then Return "q"
  If $sz_t = "r" Then Return "t"
  If $sz_t = "t" Then Return "r"
  If $sz_t = "u" Then Return "w"
  If $sz_t = "w" Then Return "u"
  If $sz_t = "v" Then Return "x"
  If $sz_t = "x" Then Return "v"
  If $sz_t = "y" Then Return "z"
  If $sz_t = "z" Then Return "y"
      
  If $sz_t = "0" Then Return "2"
  If $sz_t = "2" Then Return "0"
  If $sz_t = "1" Then Return "3"
  If $sz_t = "3" Then Return "1"
  If $sz_t = "4" Then Return "6"
  If $sz_t = "6" Then Return "4"
  If $sz_t = "5" Then Return "7"
  If $sz_t = "7" Then Return "5"
  If $sz_t = "8" Then Return "9"
  If $sz_t = "9" Then Return "8"
      
  If $sz_t = ")" Then Return "@"
  If $sz_t = "@" Then Return ")"
  If $sz_t = "!" Then Return "#"
  If $sz_t = "#" Then Return "!"
  If $sz_t = "$" Then Return "^"
  If $sz_t = "^" Then Return "$"
  If $sz_t = "%" Then Return "&"
  If $sz_t = "&" Then Return "%"
  If $sz_t = "*" Then Return "("
  If $sz_t = "(" Then Return "*"
      
  If $sz_t = "?" Then Return "+"  
  If $sz_t = "+" Then Return "?"
      
  If $sz_t = " " Then Return ":"  
  If $sz_t = ":" Then Return " "
      
  If $sz_t = @CR Then Return ""
  If $sz_t = @LF Then Return "¤"
  If $sz_t = "" Then Return @CR
  If $sz_t = "¤" Then Return @LF

  Return $sz_t
EndFunc

Func selectall()
  Send("{SHIFTDOWN}{SHIFTUP}")
  Send("^{HOME}")
  Send("^+{END}")
EndFunc

Func _Scramble($sText)
;; Scramble a text string.
   $iLen = StringLen($sText)
   $Scrambled = ""
   For $i1 = 1 To Int($iLen / 2)
      $Scrambled = $Scrambled & StringMid($sText, $iLen - $i1 + 1, 1) & StringMid($sText, $i1, 1)
   Next; $i1
; Pick up the odd character.
   If Mod($iLen, 2) Then
      $Scrambled = $Scrambled & StringMid($sText, $i1, 1)
   EndIf
   Return $Scrambled
EndFunc;==>_Scramble


Func _Unscramble($sText)
 ;; De-Scramble a Scrambled text that was scrambled by _Scramble.
   Local $iLen = StringLen($sText)
   Local  $i, $Unscrambled1, $Unscrambled2
   $Unscrambled1 = ""
   $Unscrambled2 = ""
   For $i1 = 1 To $iLen step 2
      $Unscrambled1 = StringMid($sText, $i1, 1) & $Unscrambled1
      $Unscrambled2 = $Unscrambled2 & StringMid($sText, $i1 + 1, 1)
   Next; $i1
 ; Pick up the odd character.
   If Mod($iLen, 2) Then
      $Unscrambled1 = StringMid($sText, $i1, 1) & $Unscrambled1
   EndIf
   $sText = $Unscrambled2 & $Unscrambled1
   Return $Unscrambled2 & $Unscrambled1
EndFunc ;==>_Unscramble

Func outex()
  $n_st = 0
  For $i = $t to $t + $t + $h step 10
    $n_st = $n_st + 1
    WinMove($win, "", $l, $i)
    WinSetTrans($win, "", 255 - ((255 * $n_st) / $n_ot))
  Next
EndFunc
Edited by erifash
My UDFs:_FilePrint() | _ProcessGetName() | _Degree() and _Radian()My Scripts:Drive Lock - Computer Lock Using a Flash DriveAU3Chat - Simple Multiuser TCP ChatroomStringChunk - Split a String Into Equal PartsAutoProxy - Custom Webserver
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Insolence Universalist

Insolence

Posted
Posted

You could just add a random number key/seed to the For loop method, easy enough. Each encryption would be different.

"I thoroughly disapprove of duels. If a man should challenge me, I would take him kindly and forgivingly by the hand and lead him to a quiet place and kill him." - Mark TwainPatient: "It hurts when I do $var_"Doctor: "Don't do $var_" - Lar.
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Insolence Universalist

Insolence

Posted
Posted

What does it matter if they're not displayed correctly?

If not, you could just set a maximum padding, that's easy to solve.

"I thoroughly disapprove of duels. If a man should challenge me, I would take him kindly and forgivingly by the hand and lead him to a quiet place and kill him." - Mark TwainPatient: "It hurts when I do $var_"Doctor: "Don't do $var_" - Lar.
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  • 7 months later...
YpR^ Wayfarer

YpR^

Posted
Posted

Is it possible to "restrict" the program to encrypt only 1-5 times ?

Becuase... when you write a sentance... and press encrypt like 5 times... your're getting the right sentance again... which means you don't need a decrypter :P

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