Use of metadata for time based anti-replay
US8705348B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2007 |
| Grant date | Apr 22, 2014 |
| Priority date | — |
| Expiry date | Jul 5, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for facilitating anti-replay protection with multi-sender traffic is disclosed. The system employs time-based anti-replay protection wherein a sender transmits a data packet with a pseudo-timestamp encapsulated in a metadata payload. At the receiving end, the receiver compares the pseudo-timestamp information received with its own pseudo-time, determines if a packet is valid, and rejects a replay packet. The pseudo-time information is transmitted through the metadata payload and new fields need not be added to the IPSec (IP Security) Protocol, thus the existing hardware can be employed without any changes or modifications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.