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. 29, 2018
Filed:
Feb. 17, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Shinya Yamada, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A hash value generating device for generating a hash value based on the KECCAK algorithm includes a θ processing unit, a ρ processing unit, a π processing unit, a χ processing unit, and an ι processing unit for performing processing of five steps θ, ρ, π, χ, and ι, included in round processing of the KECCAK algorithm. The θ processing unit includes a θprocessing unit for performing column sum calculation processing and a θprocessing unit for performing column sum addition processing. In the round processing, the π processing unit performs processing before the θprocessing unit and the ρ processing unit performs processing, and the ρ processing unit performs processing on a lane after rearrangement processing by the π processing unit.
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