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:
Mar. 05, 2013
Filed:
Nov. 21, 2011
Gordon D. Mcintosh, Austin, TX (US);
Edward John Silha, Austin, TX (US);
Gordon D. McIntosh, Austin, TX (US);
Edward John Silha, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A processor, circuit and method provide for fast decryption of encrypted program instructions for execution by the processor. A programmable look-up coding is used to decode a field within the instructions. The decoded field for the instructions are recombined with the remaining portion of the same instructions to yield the decoded instructions. The programmable look-up coding can be programmed and controlled by a process executing at a higher privilege level than the program represented by the instructions, so that security against code-modifying attacks is enhanced.