Generate a random secret key with OpenSSL. If OpenSSL is not already loaded, then this method will attempt to load it. LoadError will be raised if that fails.

Source Code

# File rails_generator/secret_key_generator.rb, line 68
def generate_secret_with_openssl
  require 'openssl'
  if !File.exist?("/dev/urandom")
    # OpenSSL transparently seeds the random number generator with
    # data from /dev/urandom. On platforms where that is not
    # available, such as Windows, we have to provide OpenSSL with
    # our own seed. Unfortunately there's no way to provide a
    # secure seed without OS support, so we'll have to do with
    # rand() and Time.now.usec().
    OpenSSL::Random.seed(rand(0).to_s + Time.now.usec.to_s)
  end
  data = OpenSSL::BN.rand(2048, -1, false).to_s
  return OpenSSL::Digest::SHA512.new(data).hexdigest
end