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:
Jul. 14, 2009
Filed:
Mar. 26, 2004
James F. Riordan, Rueschlikon, CH;
James F. Riordan, Rueschlikon, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Detection of an attack on a data processing system. An example method comprising, in the data processing system: providing an initial secret; binding the initial secret to data indicative of an initial state of the system via a cryptographic function; recording state changing administrative actions performed on the system in a log; prior to performing each state changing administrative action, generating a new secret by performing the cryptographic function on a combination of data indicative of the administrative action and the previous secret, and erasing the previous secret; evolving the initial secret based on the log to produce an evolved secret; comparing the evolved secret with the new secret; determining that the system is uncorrupted if the comparison indicates a match between the evolved secret and the new secret; and, determining that the system in corrupted if the comparison indicate a mismatch between the evolved secret and the new secret.