Hop Integrity in Computer Networks

A computer network is said to provide hop integrity iff when any router p in the network receives a message m supposedly from an adjacent router q, then p can check that m was indeed sent by q, was not modified after it was sent, and was not a replay of an old message sent from q to p. In this paper, we describe three protocols that can be added to the routers in a computer network so that the network can provide hop integrity. These three protocols are a secret exchange protocol, a weak integrity protocol, and a strong integrity protocol. All three protocols are stateless, require small overhead, and do not constrain the network protocol in the routers in any way.

• Type: Conference
• Year: 2000
• Where: ICNP
• Authors: Mohamed G. Gouda, E. N. Elnozahy, Chin-Tser Huang, Tommy M. McGuire
• Keywords: Adjacent Router Q, Computer Networks, Hop Integrity, ICNP 2000, Routers