#encoding__encryption  the activity of converting from plain text into code
  supertype:  #cryptography__coding__secret_writing  act of writing in code or cipher
  subtype:  #compression  encoding information while reducing the bandwidth or bits required
     subtype:  #image_compression__imagecompression  the compression of graphics for storage or transmission
  subtype:  #data_encryption  (computer science) the encryption of data for security purposes

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