System and method for an adaptive TCP SYN cookie with time validation
US7675854B2 · kind B2 · utility
77Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2006 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Jan 9, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/43
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Provided is a method and system for TCP SYN cookie validation. The method includes receiving a session SYN packet by a TCP session setup module of a host server, generating a transition cookie including a time value representing the actual time, sending a session SYN/ACK packet, including the transition cookie, in response to the received session SYN packet, receiving a session ACK packet, and determining whether a candidate transition cookie in the received session ACK packet comprises a time value representing a time within a predetermined time interval from the time the session ACK packet is received.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.