Encryption method for secure packet transmission
US8583929B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2006 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Mar 6, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods are provided for securely transmitting a packet between endpoints of a network. In one aspect, there is provided a method for establishing an end-to-end key using extant hop-by-hop security associations. In a second aspect, there is provided a method in which a packet-specific encryption key PEK is used to encrypt a packet p. A signature of the key PEK is independently computed at each of two nodes, using an integrity key shared by the two nodes. The signature is sent from one of the two nodes to the other in association with the packet p. The receiving node uses the signature to verify that the packet p was originated by an entity having possession of the PEK.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.