dzlee

less than 5 alphabet decryption goes wrong !!

5 posts in this topic

#1 ·  Posted (edited)

hi autoit developers
i have a problem with thiscode
when use alphabet
if the entered pass more than 5 every thing goes right
if pass less than 5 Decryption goes wrong
can anyone explain why ?

thanks

#include <Crypt.au3>
$admin_pass1 = InputBox("admin", "pass", "", "*")
        $file = FileOpen("AKEY.Data", 2)
        FileWrite($file, _Crypt_EncryptData($admin_pass1, "Izdroid", $CALG_RC4))
        FileClose($file)
        MsgBox(64, "^^", "done", 15)


Func pass()
    $file = FileOpen("AKEY.Data", 0)
    $pass = FileRead($file)
    FileClose($file)
    $pass = BinaryToString(_Crypt_DecryptData($pass, "Izdroid", $CALG_RC4))

    Return $pass
EndFunc   ;==>pass

MsgBox(0,"",pass())
Edited by dzlee

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You need to use binary mode for the file. Also you better convert both key and data to UTF8 else non-ANSI characters will get emasculated.

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An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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#3 ·  Posted (edited)

#include <Crypt.au3>
$admin_pass1 = StringToBinary(InputBox("admin", "pass", "", "*"),4)
        $file = FileOpen("AKEY.Data", 18)
        FileWrite($file, _Crypt_EncryptData($admin_pass1, StringToBinary("Izdroid",4), $CALG_RC4))
        FileClose($file)
        MsgBox(64, "^^", "done", 15)


Func pass()
    $file = FileOpen("AKEY.Data", 0);should changed to 16
    $pass = FileRead($file)
    FileClose($file)
    $pass = BinaryToString(_Crypt_DecryptData($pass, StringToBinary("Izdroid",4), $CALG_RC4))

    Return $pass
EndFunc   ;==>pass

MsgBox(0,"",pass())

i did but the problem still on :huh:

Edited by dzlee

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But you still read the file as text, not binary!

1 person likes this

This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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thak you
the problem that i forget to change read mode to binary
thank you again :king:

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