Invention Grant
- Patent Title: Network security from host and network impersonation
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Application No.: US17819783Application Date: 2022-08-15
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Publication No.: US11757827B2Publication Date: 2023-09-12
- Inventor: Pascal Thubert , Eric Levy-Abegnoli , Jonas Zaddach , Patrick Wetterwald
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Lee & Hayes, P.C.
- Main IPC: G06F15/16
- IPC: G06F15/16 ; H04L61/3015 ; H04L61/30 ; H04L45/02 ; H04L9/40 ; H04L101/622

Abstract:
Systems and methods may include sending, to a network registrar, an extended duplicate address request (EDAR) message including a first nonce generated by a host computing device, and receiving, from the network registrar, an extended duplicate address confirmation (EDAC) message including a second nonce and a first signature, a first nonce pair including the first nonce and the second nonce being signed by the network registrar via a first key pair of the network registrar via the first signature. The systems and methods may further include sending a first neighbor advertisement (NA) message to the host computing device including the second nonce. The second nonce and a public key of the network registrar verifies the first signature from the network registrar, the verification of the first signature indicating that a router through which the host computing device connects to a network is not impersonating the network.
Public/Granted literature
- US20220394009A1 NETWORK SECURITY FROM HOST AND NETWORK IMPERSONATION Public/Granted day:2022-12-08
Information query