encryption benchmark

encryption.rb

require 'openssl'
require 'benchmark'

data = "Hello, world!"

Benchmark.bm do |x|
  x.report do
    private_key = OpenSSL::PKey::RSA.new 4096
    public_key = private_key.public_key

    cipher = OpenSSL::Cipher.new('AES-128-CBC')
    cipher.encrypt

    aes_key = cipher.random_key
    aes_iv = cipher.random_iv

    encrypted_aes_key = public_key.public_encrypt(aes_key)
    encrypted_aes_iv = public_key.public_encrypt(aes_iv)

    encrypted_data = cipher.update(data) + cipher.final

    decipher = OpenSSL::Cipher.new('AES-128-CBC')
    decipher.decrypt
    decipher.key = private_key.private_decrypt(encrypted_aes_key)
    decipher.iv = private_key.private_decrypt(encrypted_aes_iv)

    puts decipher.update(encrypted_data) + decipher.final
  end
end