Method, and devices for defending distributed denial of service attack
US10812524B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 29, 2018 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Dec 6, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/121
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a method and devices for defending against distributed denial of service attacks. The method comprises: intercepting, by a defending device, a service message transmitted by a client to a server; obtaining, by the defending device, information carried in a first preset field of the service message and information carried in a second preset field of the service message according to a rule agreed on with the client; processing, by the defending device, the information carried in the second preset field and a preset key according to a hash algorithm agreed on with the client, and obtaining a hash value; and discarding, by the defending device, the service message upon determining that the hash value is different from the information carried in the first preset field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.