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:
Nov. 26, 2013
Filed:
Jun. 04, 2012
Taku Aratsu, Kanagawa, JP;
Sanehiro Furuichi, Kanagawa, JP;
Tada Masami, Kanagawa, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Provided are a computer readable storage medium, computer apparatus, and method for securely managing the execution of screen rendering instructions in a host operating system and virtual machine. A first rendering instruction hooking section is set to a first mode to hook a screen rendering instruction issued by a virtual machine application in a virtual machine. A second rendering instruction hooking section is set to a second mode to hook instructions issued by the virtual machine application. The hooked screen rendering instruction issued by the virtual machine application are encrypted in response to the setting of the first mode to produce illegible output. The hooked screen rendering instruction issued by the virtual machine application are encrypted in response to the setting of the second mode. The encrypted hooked screen rendering instruction encrypted in the second mode are issued to a host operating system to decrypt.