MACSec implementation
US8543826B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2012 |
| Grant date | Sep 24, 2013 |
| Priority date | — |
| Expiry date | Aug 21, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/041
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A media access control (MAC) security apparatus for a local area network interface includes multiple independently controlled power domains, each of which enters and exits a reduced power state independent of others of the power domains. An encryption/decryption engine, located within a first of the power domains, generates encrypted data in response to received packets and cryptographic primitives. An authentication engine, located within a second of the power domains, performs authentication operations in response to the encrypted data. The encryption/decryption engine comprises an advanced encryption standard engine that forms the cryptographic primitives and is located within a third of the power domains. The third power domain enters the reduced power state for part of a period during which (i) the first power domain does not enter the reduced power state and (ii) the encryption/decryption engine is generating the encrypted data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.