Routing protocol security using a distributed ledger
US10893022B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2018 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Aug 28, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0428
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one example, a method includes receiving, by a first network device via a routing protocol peering session with a peer router in a first autonomous system, a plurality of routing protocol routes to destination addresses, each routing protocol route specifying a network address prefix and an identifier of the autonomous system that originated the routing protocol route; receiving network address prefix ownership information from a distributed ledger storing a plurality of associations between respective network address prefixes and respective autonomous system identifiers of autonomous systems confirmed to own the respective network address prefixes; determining, based at least on the prefix ownership information, whether any of the plurality of routing protocol routes specifies an autonomous system identifier different than specified by the associations; and in response to determining that one of the routes specifies an autonomous system identifier different than specified by the plurality of associations, performing an action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.