Thanks! Yeah I use Crypt::CBC in conjunction just so you don't have to worry about padding to get the proper blocksize. From what I can tell from the documentation, while Crypt::OpenSSL::AES will support keysizes of 16, 24, or 32 bytes... if you use it with Crypt::CBC it will always be 32 bytes. As suggested I verified this with the keysize routine:

use Crypt::CBC;
use Crypt::OpenSSL::AES;
my $cipher = Crypt::CBC->new( -key    => '1234567890123456',
                              -cipher => 'Crypt::OpenSSL::AES',
                              -header => 'none',
                              -iv     => '6543210987654321' );
print $cipher->keysize();

[download]

Again this will ALWAYS returns 32, or 256 bits.

In reply to Re^2: Determine Encryption Strength - Crypt::CBC & OpenSSL::AES by Anonymous Monk
in thread Determine Encryption Strength - Crypt::CBC & OpenSSL::AES by perlgoon

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.