Protecting against denial of service attacks using guard tables
US8887249B1 · kind B1 · utility
40Cited by
17References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 2008 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Jun 28, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/1408
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Guard tables including absence information are used in a security system to protect a network service from a denial of service attack. A login key corresponding to a login request is hashed and the output of the hash is a bit position in a guard table. The bit value at the bit position in the guard table can be checked to determine if login information corresponding to the key is present. Further processing of the login request can be based on the indicated presence or absence of the information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.