Conceal

Simple OpenSSL-based string encryption using a shared secret. The algorithm, initialization vector, salt, crypttext, and HMAC are all encoded into a single string so it is easy to copy around.

• Ruby 1.9.3 or newer

Add this line to your application's Gemfile:

gem 'conceal'

And then execute:

$ bundle

Or install it yourself as:

$ gem install conceal

This gem provides both a ruby library and some command-line utilities.

encrypted = Conceal.encrypt('some plaintext', key: 'your shared secret', algorithm: 'aes-256-cbc')
decrypted = Conceal.decrypt(encrypted, key: 'your shared secret')

$ ruby -rsecurerandom -e 'print SecureRandom.urlsafe_base64(32)' | conceal encrypt key.file | pbcopy
$ pbpaste | conceal decrypt key.file | pbcopy

• Ben Scott (gamepoet@gmail.com)