ECE
Ruby implementation of encrypted content-encoding.
https://tools.ietf.org/html/draft-thomson-http-encryption-02
Installation
Add this line to your application's Gemfile:
gem 'ece'And then execute:
$ bundle
Or install it yourself as:
$ gem install ece
Usage
Encrypting:
require 'ece'
key = Random.new.bytes(16)
salt = Random.new.bytes(16)
data = "Your very private data"
encrypted_data = ECE.encrypt(data, key: key, salt: salt)Decrypting:
ECE.decrypt(encrypted_data, key: key, salt: salt)Data can be bytestring as well.
Encrypting data with elliptical curve Diffie-Hellman (ECDH) key agreement protocol using client keys providing by a Web Push subscription:
user_public_key # Provided by the browser, effectively: Random.new.bytes(65)
user_auth # Provided by the browser, effectively: Random.new.bytes(16)
local_curve = OpenSSL::PKey::EC.new("prime256v1")
local_curve.generate_key
user_public_key_point = OpenSSL::PKey::EC::Point.new(local_curve.group, OpenSSL::BN.new(user_public_key, 2))
key = local_curve.dh_compute_key(user_public_key_point)
server_public_key = local_curve.public_key.to_bn.to_s(2)
salt = Random.new.bytes(16)
encrypted_data = ECE.encrypt(data,
key: key,
salt: salt
server_public_key: server_public_key,
user_public_key: user_public_key,
auth: user_auth)Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/randomlogin/ece.