Module: CcipherFactory::SymKeyCipher::SymKeyAttEncrypt

Includes:
Common, Compression::CompressionHelper
Defined in:
lib/ccipher_factory/symkey_cipher/symkey_att_encrypt.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Compression::CompressionHelper

#compress_data_if_active, #compression_off, #compression_on, #compressor, #decompress_data_if_active, #decompressor, #decompressor_from_encoded, #encode_null_compressor, #is_compression_on?, #logger

Methods included from Common

#attach_mode, #cleanup_intOutputBuf, #cleanup_intOutputFile, #detach_mode, #disposeOutput, #intOutputBuf, #intOutputFile, #is_attach_mode?, #is_output_given?, #output, #output_obj, #sanitize_symbol, #write_to_output

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(mtd, *args, &block) ⇒ Object 



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# File 'lib/ccipher_factory/symkey_cipher/symkey_att_encrypt.rb', line 57

def method_missing(mtd, *args, &block)
  if not_empty?(@enc)
    @enc.send(mtd, *args, &block) 
  end
end

Instance Attribute Details

#key ⇒ Object

Returns the value of attribute key.



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# File 'lib/ccipher_factory/symkey_cipher/symkey_att_encrypt.rb', line 13

def key
  @key
end

#mode ⇒ Object

Returns the value of attribute mode.



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# File 'lib/ccipher_factory/symkey_cipher/symkey_att_encrypt.rb', line 13

def mode
  @mode
end

Instance Method Details

#att_encrypt_final ⇒ Object 



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# File 'lib/ccipher_factory/symkey_cipher/symkey_att_encrypt.rb', line 41

def att_encrypt_final

  meta = @enc.encrypt_final

  write_to_output(meta)
  intOutputFile.rewind
  while not intOutputFile.eof?
    write_to_output(intOutputFile.read)
  end

  intOutputFile.close!

  nil

end

#att_encrypt_init(*args, &block) ⇒ Object

Raises:



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# File 'lib/ccipher_factory/symkey_cipher/symkey_att_encrypt.rb', line 14

def att_encrypt_init(*args, &block) 

  raise SymKeyCipherError, "Cipher requires output to be set" if not is_output_given?

  @enc = SymKeyCipher.encryptor 
  @enc.compression_on if is_compression_on?
  @enc.output(intOutputFile)
  @enc.key = @key
  @enc.mode = @mode if not_empty?(@mode)

  @enc.encrypt_init(*args)

  if block
    instance_eval(&block)
    att_encrypt_final
  else
    self
  end

end

#att_encrypt_update(val) ⇒ Object

Raises:



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# File 'lib/ccipher_factory/symkey_cipher/symkey_att_encrypt.rb', line 35

def att_encrypt_update(val)
  raise SymKeyCipherError, "Please call att_encrypt_init() before calling update()" if @enc.nil?

  @enc.encrypt_update(val) 
end