Source throttling using CPU stamping
US7430607B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2005 |
| Grant date | Sep 30, 2008 |
| Priority date | — |
| Expiry date | May 17, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/1408
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for managing one or more web requests provided to a web application from a client computer. An application is responsive to a web request to generate verification data. The application sends a reply to the client to calculate a stamp as a function of the generated verification data. The application is responsive to an additional request from the client including the calculated stamp to determine if it corresponds to the generated verification data. If the calculated stamp corresponds to the generated verification data, the additional web request is submitted to the web application for processing. A Web server subject to a DOS attack will be able to distinguish between genuine users(who generate stamps) and malicious users(who will not generate stamps) and over a period of time be able to restore service to the former and deny to the latter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.