IdCipher

cipher Integer to another Integer, make customer confused with the real number

Installation

Add this line to your application's Gemfile:

gem 'id_cipher'

And then execute:

$ bundle

Or install it yourself as:

$ gem install id_cipher

Usage

set cipher slat in two ways:

1. if use this in ruby on rails, add config in settings.yml:

   Settings.id_cipher_key = 'something.like.this'
   

2. or set IdCipher::KEY direct

   module IdCipher
       KEY = 'something.like.this'
   end
   

notice: the key length must be over 16, should not longer than 256.

code example

IdCipher.encrypt(1) # puts 42491238512

IdCipher.decrypt(42491238512) # puts 1

the result about encrypt is depend on key

IdCipher has two method, most of time, result of two method will be same. but DO NOT use them obscurely.

ID cipher use C pack function, so it has up limmit for id, pack function use 'L' type pack id, it's a unsigned long type, value range is 0~(2**32 - 1), means it must less than 4294967295

Contributing

1. Fork it ( https://github.com/[my-github-username]/id_cipher/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 a new Pull Request