Custom Encryptor for Devise

sha1.rb

module Devise
  module Encryptors
    class Sha1
      def self.digest(password, user_salt)
        string_to_hash = password + "abcdefgh" + user_salt
        Digest::SHA1.hexdigest(string_to_hash)
      end

      def self.salt(username)
        self.object_id.to_s + rand.to_s
      end
    end
  end
end