Class: Glib::Crypt::Utils

Inherits:
Object
  • Object
show all
Defined in:
lib/glib/crypt/utils.rb

Class Method Summary collapse

Class Method Details

.decrypt(encrypted_message, encryption_secret, encryption_salt) ⇒ Object 



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# File 'lib/glib/crypt/utils.rb', line 9

def self.decrypt(encrypted_message, encryption_secret, encryption_salt)
  encryptor = message_encryptor(encryption_secret, encryption_salt)
  begin
    encryptor.decrypt_and_verify(CGI.unescape(encrypted_message))
  rescue ActiveSupport::MessageEncryptor::InvalidMessage
    nil
  end
end

.encrypt(original_message, encryption_secret, encryption_salt) ⇒ Object 



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# File 'lib/glib/crypt/utils.rb', line 4

def self.encrypt(original_message, encryption_secret, encryption_salt)
  encryptor = message_encryptor(encryption_secret, encryption_salt)
  CGI.escape(encryptor.encrypt_and_sign(original_message))
end

.message_encryptor(encryption_secret, encryption_salt) ⇒ Object 



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# File 'lib/glib/crypt/utils.rb', line 19

def self.message_encryptor(encryption_secret, encryption_salt)
  key_generator = ActiveSupport::KeyGenerator.new(encryption_secret, iterations: 1000)
  key_secret = key_generator.generate_key(encryption_salt, 32)
  ActiveSupport::MessageEncryptor.new(key_secret, digest: 'SHA1', serializer: JSON)
end