Method: ActiveSupport::MessageEncryptor.key_len

Defined in:

activesupport/lib/active_support/message_encryptor.rb

.key_len(cipher = default_cipher) ⇒ Object

Given a cipher, returns the key length of the cipher to help generate the key of desired size

# File 'activesupport/lib/active_support/message_encryptor.rb', line 252

def self.key_len(cipher = default_cipher)
  OpenSSL::Cipher.new(cipher).key_len
end