Method: SymmetricEncryption::Cipher#decode

Defined in:
lib/symmetric_encryption/cipher.rb

#decode(encoded_string) ⇒ Object

Decode the supplied string using the encoding in this cipher instance Note: No encryption or decryption is performed

Returned string is Binary encoded



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# File 'lib/symmetric_encryption/cipher.rb', line 211

def decode(encoded_string)
  return encoded_string if encoded_string.nil? || (encoded_string == '')

  case encoding
  when :base64, :base64strict
    decoded_string = ::Base64.decode64(encoded_string)
    # Support Ruby 1.9 encoding
    defined?(Encoding) ? decoded_string.force_encoding(SymmetricEncryption::BINARY_ENCODING) : decoded_string
  when :base16
    decoded_string = [encoded_string].pack('H*')
    # Support Ruby 1.9 encoding
    defined?(Encoding) ? decoded_string.force_encoding(SymmetricEncryption::BINARY_ENCODING) : decoded_string
  else
    encoded_string
  end
end