Joint compression and data protection

  • Authors:

  • João Almeida;João Barros

  • Affiliations:

  • Instituto de Telecomunicações, Departamento de Ciência de Computadores, Faculdade de Ciências da Universidade do Porto;Instituto de Telecomunicações, Departamento de Engenharia Electrotécnica e de Computadores, Faculdade de Engenharia da Universidade do Porto

  • Venue:
  • Allerton'09 Proceedings of the 47th annual Allerton conference on Communication, control, and computing
  • Year:
  • 2009

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Abstract

Breaking with the traditional modular architecture in which compression and cryptography are carried out separately, we propose an analysis-by-synthesis approach that exploits the properties of source codes to ensure a prescribed level of protection with manageable computational complexity. To illustrate the power of this methodology, we show that carefully inducing catastrophic errors in Huffman coded streams is very effective towards confusing a passive attacker.