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.