After a certain amount of fiddling (there is no Crypt::CBC on activestate and Crypt::Blowfish has no start/finish methods, for 2) it seems you may have trouble w/ padding. Blowfish encrypt/decrypt want 8 byte buffers, so I had to manually pad the last read for encrypting w/ spaces (not \0 that made my cygnus diff call it a binary file ;-) and that threw off the diff as it was missing a final \n. Winxx worked w/o the stty (so you can see passwds, though my cygnus stty (once I added it to the path) worked well) . Very important: the ever-popular binmode, on IN/OUT for encrypting and decrypting.

I, of course, added -w/use strict, but that didn't help too much, except for complaining about your pass cache business, using pw.$_] before it was initialized and that "if @{ $todo{encrypt} } ..." didn't exist - 'course, you don't need the @{ at the checking if anything's to be encrypted stage, so its still a good idea. Soooooo, my guess: padding on the last read IN is messing up the exact return on decrypt.

I'm constantly amazed that this stuff'll work on winxx period, maybe its not just a toy OS ... nah.

I tested it on on 131k file - but this all may be rot if the CBC wrapper/start/finish stuff handles the padding properly.

a

In reply to Re: cbc broken by a
in thread cbc broken by jettero

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.