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:
May. 29, 2012
Filed:
Oct. 30, 2007
Giovanni Di Crescenzo, Madison, NJ (US);
Faramak Vakil, Long Grove, IL (US);
Giovanni Di Crescenzo, Madison, NJ (US);
Faramak Vakil, Long Grove, IL (US);
TTI Inventions C LLC, Wilmington, DE (US);
Abstract
Methods for using integrity checking techniques to identify and locate computer viruses are provided. A method for virus localization for each of three types of virus infections is provided, including the steps of computing a sequence of file blocks, calculating hashes for the sequences of file blocks from a host file and calculating hashes for the same or related sequences of file blocks from an infected file, and comparing the hashes from host file to the hashes from the infected file from the same or related sequences of file blocks such that when some of said first hashes and said second hashes do not match, a location of a virus is output. Methods are provided for computing the sequence of file blocks depending on the type of virus infection, and for calculating the hashes using a collision resistant hash function, a digital signature scheme, a message authentication code, or a pseudo-random function.