TokenChain

Generates a deterministic chain (or sequence) of tokens from a passphrase.

Installation

Add this line to your application's Gemfile:

gem 'token_chain'

And then execute:

$ bundle

Or install it yourself as:

$ gem install token_chain

Usage

You can create a token chain from a passphrase:

chain = TokenChain.from_passphrase 'the rain in spain'
chain.generate    #=> [first token]
chain.generate(2) #=> [second token, third token]
chain.anchor_code #=> anchor code for this chain, useful for restarting w/out passphrase

Provided you have a chain's anchor code, you can also "restart" a chain without the passphrase:

chain = TokenChain.from_anchor [anchor code]
chain.generate #=> [first token]

You can even jumpstart the chain to generate from a previously generated token:

chain = TokenChain.from_anchor [anchor code], [second code]
chain.generate #=> [third code]

Contributing

  1. Fork it ( http://github.com//token_chain/fork )
  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