Digest::Simple

Digest::Simple is a class that minimun implement for non block message digest.

Digest::Simple depends only one method finish.

module Digest
  class Prime31 < Simple
    def initialize
      @prime = 31
      # should be call Digest::Simple#initialize
      super
    end
  
    def finish
      result = 0
      # @buffer is a internal variable
      @buffer.unpack("C*").each do |c|
        result += (c * @prime)
      end
      [result & 0xffffffff].pack("N")
    end
  end
end

p Digest::Prime31.hexdigest("abc" * 1000) #=> "008b1190"

All methods in Digest::Class

Add this line to your application's Gemfile:

gem 'digest-simple'

And then execute:

$ bundle

Or install it yourself as:

$ gem install digest-simple

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request