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:
Aug. 07, 2018
Filed:
Sep. 30, 2015
Emc Corporation, Hopkinton, MA (US);
Andreas Wittenstein, Granada, ES;
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
A single system for detecting and blocking all cases of null-byte injection in all text data received for a network, before the text reaches potentially vulnerable services in the network. A set of directed graphs is received, each one of the directed graphs corresponding to a singly encoded null-byte that is encoded according to a corresponding character encoding method contained within a set of character encoding methods. The set of directed graphs is used to generate an output finite-state machine that models detection of at least one multiply encoded null-byte that is encoded according to at least one of the character encoding methods contained in the set of character encoding methods. The output finite-state machine is loaded into an attack detection and prevention system that receives input text, and that detects null-bytes, including multiply encoded null-bytes, within the input text.