Ruby Identicon
swdyh
RejectRejectKaigi 2008

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Identicon

?

Don Park's Daily Habit -
Visual Security: 9-block IP
Identification
http://www.docuverse.com/blog/donpark/2007/01/18/
visual-security-9-block-ip-identification

IP

32

SHA1
32

SHA1 …

IP

ID
OpenID URL …

Java

JavaScript
(canavas)

PHP, Perl,
Python, .NET, ...
http://www.docuverse.com/blog/donpark/2007/01/20/
identicon-third-party-implementations

Ruby

quilt
Ruby Identicon

RMagick Ruby/GD

github
→ sudo gem install swdyh-quilt -s
http://gems.github.com/
rubyforge
→ sudo gem install quilt

require 'rubygems'
require 'quilt'
identicon = Quilt::Identicon.new 'rejectkaigi'
identicon.write 'rejectkaigi_15.png'

identicon = Quilt::Identicon.new 'rejectkaigi',
:size => 500
identicon.write 'rejectkaigi_500.png'

github
http://github.com/swdyh/quilt/tree/master

RMagick Gem

http://identicon.relucks.org/

Identicon Web