openssl-ccm
Ruby Gem for RFC 3610 - Counter with CBC-MAC (CCM)
Installation
Add this line to your application's Gemfile:
gem 'openssl-ccm'
And then execute:
$ bundle
Or install it yourself as:
$ gem install openssl-ccm
Usage
Example:
require 'openssl/ccm'
ccm = OpenSSL::CCM.new('AES', 'My16Byte LongKey', 8)
ciphertext = ccm.encrypt('The message to encrypt', 'The nonce')
plaintext = ccm.decrypt(ciphertext, 'The nonce')
After initialisation, you can use the object as often you need.