Anonymous Monk/redhotpenguin,
The perl crypt function wouldn't help you even if it were available since it is a 1-way hashing library and not an encryption/decryption utility.

If you are only interested in protecting the data in transit, using an existing library like SSL is the lowest cost solution assuming it is available.

I am not sure you understood what I was saying about using the algorithm as your shared secret. You could pick any data hiding you want that is more sophisticated than rot-13. If you don't provide people access to the algorithm than getting the secret isn't going to be very easy. If you don't believe me, I will design an algorithm and post a secret message to see how long it takes you to decipher it.

Cheers - L~R


In reply to Re^3: Encryption using perl core functions only by Limbic~Region
in thread Encryption using perl core functions only by redhotpenguin

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



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.