Hash value generating device that performs round processing of a hash algorithm
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United States of America Patent
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May 29, 2018
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Feb 17, 2014
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Feb 21, 2013
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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 θ1 processing unit for performing column sum calculation processing and a θ2 processing unit for performing column sum addition processing. In the round processing, the π processing unit performs processing before the θ2 processing 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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