Protocol Steganography

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Protocol Steganography

• Norka Lucena and Steve Chapin
• Syracuse University
• May 27, 2004

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What is Protocol Steganography?

• Embedding information within messages and network
  control protocols used by common applications

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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

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Protocol Steganography Framework

• Six possible sets of agent roles

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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?

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Any questions or insights?