Class: Xmlenc::EncryptedKey

Inherits:
Object
  • Object
show all
Defined in:
lib/xmlenc/encrypted_key.rb

Constant Summary collapse

ALGORITHMS = 
{
    'http://www.w3.org/2001/04/xmlenc#rsa-1_5'        => Algorithms::RSA15,
    'http://www.w3.org/2001/04/xmlenc#rsa-oaep-mgf1p' => Algorithms::RsaOaepMgf1p
}

Instance Method Summary collapse

Constructor Details

#initialize(node) ⇒ EncryptedKey

Returns a new instance of EncryptedKey.



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# File 'lib/xmlenc/encrypted_key.rb', line 8

def initialize(node)
  @node = node
end

Instance Method Details

#cipher_value ⇒ Object 



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# File 'lib/xmlenc/encrypted_key.rb', line 24

def cipher_value
  at_xpath('./xenc:CipherData/xenc:CipherValue').content.gsub(/[\n\s]/, '')
end

#cipher_value=(value) ⇒ Object 



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# File 'lib/xmlenc/encrypted_key.rb', line 28

def cipher_value=(value)
  at_xpath('./xenc:CipherData/xenc:CipherValue').content = value
end

#decrypt(key) ⇒ Object 



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# File 'lib/xmlenc/encrypted_key.rb', line 32

def decrypt(key)
  decryptor = algorithm.new(key)
  decryptor.decrypt(Base64.decode64(cipher_value), :node => encryption_method)
end

#document ⇒ Object 



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# File 'lib/xmlenc/encrypted_key.rb', line 12

def document
  @node.document
end

#encrypt(key, data) ⇒ Object 



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# File 'lib/xmlenc/encrypted_key.rb', line 37

def encrypt(key, data)
  encryptor = algorithm.new(key)
  encrypted = encryptor.encrypt(data, :node => encryption_method)
  self.cipher_value = Base64.encode64(encrypted)
end

#encrypted_data ⇒ Object 



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# File 'lib/xmlenc/encrypted_key.rb', line 20

def encrypted_data
  EncryptedData.new(referenced_node)
end

#encryption_method ⇒ Object 



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# File 'lib/xmlenc/encrypted_key.rb', line 16

def encryption_method
  at_xpath('./xenc:EncryptionMethod')
end