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:
Sep. 02, 2014
Filed:
Dec. 22, 2009
Ajay Venkateshan Krishnaprasad, Stony Brook, NY (US);
Parasuraman Narasimhan, Hyderabad, IN;
Robert Polansky, Westwood, MA (US);
Magnus Nyström, Sammamish, WA (US);
Ajay Venkateshan Krishnaprasad, Stony Brook, NY (US);
Parasuraman Narasimhan, Hyderabad, IN;
Robert Polansky, Westwood, MA (US);
Magnus Nyström, Sammamish, WA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A virtual machine on a physical host computer provides controlled access to protected data by creating and storing a 'stored system fingerprint' from stable system values (SSVs) as existing when creating the stored system fingerprint. The SSVs include virtual-machine-specific values that change upon cloning the virtual machine (VM) but do not change upon migration of the VM. Upon a request for access to the protected data, a current system fingerprint is calculated from the SSVs as existing when processing the request, the current system fingerprint is compared to the stored system fingerprint to determine whether there is a predetermined degree of matching, and the requested access to the protected data is permitted only if there is the predetermined degree of matching.