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:
May. 05, 2015
Filed:
Mar. 13, 2013
Krzysztof Jankowski, Folsom, CA (US);
Gunnar Gaubatz, San Jose, CA (US);
Krzysztof Jankowski, Folsom, CA (US);
Gunnar Gaubatz, San Jose, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
Efficient hardware architecture for a S1 S-box for a ZUC cipher is described. One circuit includes a first circuit to map an 8-bit input data of a Galois field GF(256) for a 8-bit data path for a ZUC cipher non-linear function component into 4-bit data paths for the ZUC cipher non-linear function component. The circuit further includes other circuits coupled to the first circuit to execute the 4-bit data paths in GF(16) to determine the inverse of the 8-bit input data for the ZUC cipher non-linear function component in GF(16) and to map the inverse in GF(16) to the Galois field GF(256).