Slash Boxes
NOTE: use Perl; is on undef hiatus. You can read content, but you can't post it. More info will be forthcoming forthcomingly.

All the Perl that's Practical to Extract and Report

The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
More | Login | Reply
Loading... please wait.
  • I wrote the initial set of code that Larry turned into the CRYPTSWITCH enabled encryption filter in early perl3. Carrying forward that ability for encrypting scripts was the initial purpose of the Filter module in perl5, although the ability to apply arbitrary filtering to the incoming code stream was designed into it and the Filter::Crypt module was one of the initial examples of how to use that ability.

    But, the company I was at was never foolish enough to believe that encrypting scripts made the code saf

    • I recall scaring the hell out of a programmer that was relying on Filter::decrypt. He'd thought it was full on encryption rather than just elaborate obfuscation and apparently the company had bought into that, too. I told him I could bust the obfuscation. He didn't believe me so he sent me a simple sample. IIRC my algorithm was something like...

      require the code
      walk the symbol table looking for globals and subroutines
      Data::Dumper the globals
      B::Deparse the subroutines

      The tricky part was the file-scoped