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. 29, 2009
Filed:
Mar. 08, 2004
Alan Karp, Palo Alto, CA (US);
Arindam Banerji, Sunnyvale, CA (US);
Thomas Wylegala, Santa Clara, CA (US);
Rajiv Gupta, Los Altos, CA (US);
Peter Phaal, San Francisco, CA (US);
Alan Karp, Palo Alto, CA (US);
Arindam Banerji, Sunnyvale, CA (US);
Thomas Wylegala, Santa Clara, CA (US);
Rajiv Gupta, Los Altos, CA (US);
Peter Phaal, San Francisco, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
Embodiments of the present invention include a system and method for making it safe to execute downloaded code. The method includes accessing an application, the application making a system call to a library of a computer system for a resource, establishing a requesting thread. The method further includes the library sending a request message to a local security filter; the local security filter validating the requesting thread and returning a digital signature, that uniquely identifies the requesting thread, to the application. The application making a system call to a kernel of the computer system wherein the kernel uses the digital signature from the security filter to validate the requesting thread before allowing access to the requested resource.