Class: Xmlenc::Builder::EncryptedData

Inherits:
Object
  • Object
show all
Includes:
ComplexTypes::EncryptedType
Defined in:
lib/xmlenc/builder/encrypted_data.rb

Constant Summary collapse

ALGORITHMS =
{
    'http://www.w3.org/2001/04/xmlenc#tripledes-cbc' => Algorithms::DES3CBC,
    'http://www.w3.org/2001/04/xmlenc#aes128-cbc'    => Algorithms::AESCBC[128],
    'http://www.w3.org/2001/04/xmlenc#aes256-cbc'    => Algorithms::AESCBC[256]
}
TYPES =
{
    'http://www.w3.org/2001/04/xmlenc#Element' => :element,
    'http://www.w3.org/2001/04/xmlenc#Content' => :content,
}

Instance Method Summary collapse

Methods included from ComplexTypes::EncryptedType

#set_encryption_method

Constructor Details

#initialize(*args) ⇒ EncryptedData

Returns a new instance of EncryptedData.


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# File 'lib/xmlenc/builder/encrypted_data.rb', line 26

def initialize(*args)
  options = args.extract_options!
  if options.key?(:id)
    self.id = options.delete(:id)
  else
    self.id = "_#{SecureRandom.hex(5)}"
  end
  super(*(args << options))
end

Instance Method Details

#encrypt(data, key_options = {}) ⇒ Object


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# File 'lib/xmlenc/builder/encrypted_data.rb', line 36

def encrypt(data, key_options = {})
  encryptor = algorithm.setup
  encrypted = encryptor.encrypt(data, :node => encryption_method)
  cipher_data.cipher_value = Base64.encode64(encrypted)

  key_params = { :data => encryptor.key }

  encrypted_key = EncryptedKey.new(key_params.merge(key_options))
  encrypted_key.add_data_reference(id)

  if key_options[:carried_key_name].present?
    encrypted_key.carried_key_name = key_options[:carried_key_name]
  end

  encrypted_key
end

#set_key_name(key_name) ⇒ Object


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# File 'lib/xmlenc/builder/encrypted_data.rb', line 60

def set_key_name(key_name)
  if key_name
    self.key_info ||= KeyInfo.new
    self.key_info.key_name = key_name
  end
end

#set_key_retrieval_method(retrieval_method) ⇒ Object


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# File 'lib/xmlenc/builder/encrypted_data.rb', line 53

def set_key_retrieval_method(retrieval_method)
  if retrieval_method
    self.key_info ||= KeyInfo.new
    self.key_info.retrieval_method = retrieval_method
  end
end

#typeObject


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# File 'lib/xmlenc/builder/encrypted_data.rb', line 22

def type
  'http://www.w3.org/2001/04/xmlenc#Element'
end