Method and system for resilient packet traceback in wireless mesh and sensor networks
US8695089B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2007 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Sep 3, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for packet traceback in a network includes maintaining an identity number (ID) for each node in a network and generating a signature (e.g., a message authentication code (MAC)) using a secret key shared between each node on a forwarding path and a sink. Each forwarding node leaves a mark by appending its ID and a signature in the packet, either in a deterministic manner or with a probability. Upon receiving a packet at the sink, correctness of the signatures included in each packet is verified in the reverse order by which these signatures were appended. A last valid MAC is determined in the forwarding path to determine the locations of compromised nodes that collude in false data injection attacks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.