Digest::BubbleBabble(3)                    User Contributed Perl Documentation


NAME
       Digest::BubbleBabble - Create bubble-babble fingerprints

SYNOPSIS
           # Create a fingerprint of a simple string.
           use Digest::BubbleBabble qw( bubblebabble );
           my $fingerprint = bubblebabble( Digest => "Pineapple" );

           # Create a fingerprint of a SHA-1 hash.
           use Digest::SHA1 qw( sha1 );
           $fingerprint = bubblebabble( Digest => sha1("hello") );

DESCRIPTION
       Digest::BubbleBabble takes a message digest (often generated by either
       of the MD5 or SHA-1 message digest algorithms) and creates a
       fingerprint of that digest in "bubble babble" format.  Bubble babble is
       a method of representing a message digest as a string of "real" words,
       to make the fingerprint easier to remember. The "words" are not
       necessarily real words, but they look more like words than a string of
       hex characters.

       Bubble babble fingerprinting is used by the SSH2 suite (and,
       consequently, by Net::SSH::Perl, the Perl SSH implementation) to
       display easy-to-remember key fingerprints.  The key (a DSA or RSA key)
       is converted into a textual form, digested using Digest::SHA1, and run
       through bubblebabble to create the key fingerprint.

USAGE
       Digest::BubbleBabble conditionally exports one function called
       bubblebabble; to import the function you must choose to import it, like
       this:

           use Digest::BubbleBabble qw( bubblebabble );

   bubblebabble( Digest => $digest )
       Currently takes only one pair of arguments, the key of which must be
       Digest, the value of which is the actual message digest $digest. You
       should generate this message digest yourself using either Digest::MD5
       of Digest::SHA1.

       Returns the bubble babble form of the digest.

SEE ALSO
       The BubbleBabble specification is available at:
       http://web.mit.edu/kenta/www/one/bubblebabble/spec/jrtrjwzi/draft-huima-01.txt

LICENSE
       Digest::BubbleBabble is free software; you may redistribute it and/or
       modify it under the same terms as Perl itself.

AUTHOR & COPYRIGHTS
       Benjamin Trott, cpan@stupidfool.org

       Except where otherwise noted, Digest::BubbleBabble is Copyright 2001
       Benjamin Trott. All rights reserved.

perl v5.38.0                      2023-07-25           Digest::BubbleBabble(3)