Jump to content

Using _Crypt_DecryptData to decrypt strings from _StringEncrypt


Arnicus
 Share

Recommended Posts

Is it possible to use _Crypt_DecryptData to decrypt a string that was encrypted using _StringEncrypt?

I haven't been having any luck with it.  The documentation for _StringEncrypt says it uses RC4 encryption, but the following is not doing the trick when I feed it something that was encrypted by _StringEncrypt.

Local $bDecrypted = _Crypt_DecryptData(GUICtrlRead($g_idInputEdit), "MyPassword", $CALG_RC4) 

Local $bDecryptedString = BinaryToString($bDecrypted, 1)

 

Am I doing something wrong, or am I just trying to do something that isn't possible?
 

Link to comment
Share on other sites

According to the version history (v3.3.10.0 - Dec 23, 2013):

  • _StringEncrypt() documentation has been removed. The function is still present in String.au3, but may be removed at a later date. Scripts should be updated to use the Crypt functions instead.  Look at _Crypt_EncryptData() for an example of an alternative _StringEncrypt.

 

Edited by spudw2k
Link to comment
Share on other sites

Thanks, Spudw2k.

Unfortunately, I've got old files running around that have encrypted text in them that was created with _StringEncrypt.  I'm hoping I can write new code with _Crypt_DecryptData that will still read those old files correctly.  Anybody know if that's possible?

Link to comment
Share on other sites

_StringEncrypt and friends is (was) buggy as hell and is incompatible with the now-correct _Crypt_* functions. So your best bet is to use the buggy _StringDecrypt to read back olf stuff to plaintext then switch to _Crypt* functions from there on.

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)

Link to comment
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
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...