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Protocol Steganography

Protocol Steganography. Norka Lucena and Steve Chapin Syracuse University May 27, 2004. SSH. UDP. HTTP. SMTP. FTP. TCP. Etc. What is Protocol Steganography?. Embedding information within messages and network control protocols used by common applications. Sender. Receiver. m or m’.

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Protocol Steganography

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  1. Protocol Steganography Norka Lucena and Steve Chapin Syracuse University May 27, 2004

  2. SSH UDP HTTP SMTP FTP TCP Etc. What is Protocol Steganography? • Embedding information within messages and network control protocols used by common applications

  3. Sender Receiver m or m’ m m’ Protocol Steganography Framework Eve/Mallory Alice Bob • Sender sends message m • Alice intercepts m, hides some information on it, and sends m’ • Bob received m’ and sends either m or m’

  4. Protocol Steganography Framework • Six possible sets of agent roles

  5. Problem: Appropriate Location of the Agents • How to guarantee that Bob will actually get the stegopacket sent by Alice? • How to place Alice and Bob such that the susceptibility traffic analysis is minimized?

  6. Any questions or insights?

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