Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl-Sensitive Sunglasses
 
PerlMonks  

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??
My idea was that you are assuming that
  • compiled code is safe (hard to decipher)
  • a memory dump reveals any password too easily
Inside of these presumptions using code to deencrypt the key should be "safe"

Simple example a loop doing XORs with values from a nested table.

XORs are easily reversed.

Plus some rotations if you want and gotos depending on temporary values in the middle.

Sorry, no ready to use suggestions.

Of course one could use B::Deparse to disassemble the Op-tree, but that's always the case.

HTH! :)

update

You could create such an algorithm with random values.

It's only important that

  • there is no information loss
  • that it halts

For clarification the algorithm would act here as the key.

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery FootballPerl is like chess, only without the dice


In reply to Re^7: use of already eval()ed module (from string) by LanX
in thread use of already eval()ed module (from string) by bliako

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others surveying the Monastery: (4)
As of 2024-04-16 18:55 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found