This is a gem used within some of Transparency Toolkit's apps to encrypt documents and verify the integrity of data being sent from app to app using UDP. To install: gem install doc_integrity_check To use: require "doc_integrity_check" include DocIntegrityCheck Available Methods- encrypt_data(file, recipient_key_id, signer_key_id) decrypt(data_string) hash(file) hash_verified?(file_details)