The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 13, 2018
Filed:
Jun. 13, 2012
Clark Debs Jeffries, Durham, NC (US);
Mohammad Peyravian, Cary, NC (US);
Clark Debs Jeffries, Durham, NC (US);
Mohammad Peyravian, Cary, NC (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
The present invention provides for protecting against denial of service attacks. A request is sent by a client, the request comprises client indicia. The request is received at a server. A request count is incremented by the server. A sequence number is assigned as a function of the client indicia. A problem is selected by the server. The problem is sent by the server to the client. A solution to the problem is sent to the server. It is determined if the solution by client is correct. If the solution is correct, a session is performed. If the solution is not correct, the request is discarded. This can substantially decrease the amount of attacks performed by a rogue client, as the session set-up time can be substantial.