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:
Jul. 12, 2016
Filed:
Dec. 05, 2012
South China University of Technology, Guangzhou, Guangdong, CN;
Shaohua Tang, Guangzhou, CN;
Haibo Yi, Guangzhou, CN;
South China University of Technology, Guangzhou, Guangdong, CN;
Abstract
A finite field inverter is disclosed, wherein the finite field inverter includes an input port, an output port and a search tree inverse circuit configured to perform an inverse operation of the operand a(x) in the finite field GF(2) based on a search tree structure. The search tree inverse circuit is provided with a left search tree and a right search tree. The left search tree and the right search tree each includes tree nodes for processing inverse operations over the finite field GF(2) and connecting wires connected between the tree nodes. The tree nodes include a root node, internal nodes and leaf nodes. Each path from the root node to a leaf node represents an element in the finite field GF(2). The connecting wires between the tree nodes connect the path representing the operand a(x) with the path representing the inversion result b(x) . The present invention uses a search tree inverse circuit to achieve an inverse operation of an element in a finite field, and compared with the existing finite field inverter, the present invention is more efficient in processing inverse operations over the finite field GF(2).