Class: Devise::Encryptable::Encryptors::Scrypt

Inherits:

Base

• Object
• Base
• Devise::Encryptable::Encryptors::Scrypt

Defined in:

lib/devise/encryptable/encryptors/scrypt.rb

Overview

An encryptor for Devise passwords that uses the SCrypt algorithm. You will need the devise-encryptable gem. Then you can switch to scrypt by setting config.encryptor = :scrypt in your devise config.

Stretches are ignored as SCrypt has different concepts for increasing calculation complexity.

As this uses the scrypt ruby gem you can configure the complexity by setting defaults there, like so:

SCrypt::Engine::DEFAULTS[:key_len] = 128
SCrypt::Engine::DEFAULTS[:salt_size] = 64

Find out more about SCrypt here:

• https://github.com/pbhogan/scrypt
• http://www.tarsnap.com/scrypt.html

Class Method Summary

• .compare(encrypted_password, password, stretches, salt, pepper) ⇒ Object
• .digest(password, stretches, salt, pepper) ⇒ Object

Class Method Details

.compare(encrypted_password, password, stretches, salt, pepper) ⇒ Object

# File 'lib/devise/encryptable/encryptors/scrypt.rb', line 30

def self.compare(encrypted_password, password, stretches, salt, pepper)
  SCrypt::Password.new(encrypted_password) == "#{password}#{salt}#{pepper}"
end

.digest(password, stretches, salt, pepper) ⇒ Object

# File 'lib/devise/encryptable/encryptors/scrypt.rb', line 26

def self.digest(password, stretches, salt, pepper)
  SCrypt::Password.create("#{password}#{salt}#{pepper}").to_s
end