Description

A library for creating and verifying so-called »hash cash stamps«, i.e.
proof of work as defined on hashcash.org.

Prerequisites

This package requires Ruby 1.8 or later.

Installation instructions

rake test (optional)
rake install (non-gem) or rake install_gem (gem)

Synopsis

require 'hashcash'

# Create a new hash cash stamp
s = HashCash::Stamp.new(:resource => '[email protected]')
puts s

# Verify a given stamp
s = HashCash::Stamp.new(:stamp => '1:20:060408:[email protected]::1QTjaYd7niiQA/sc:ePa')
s.verify('[email protected])

Known bugs

Stamp creation is an order of magnitude slower than using the
standalone hash cash program. This might not be fixed as I
mainly use the library for verification.
(c) 2010 Alexander Klink

License

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Warranty

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

Author

Alexander Klink
[email protected]
http://www.alech.de
@alech on Twitter