Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Bonnie C. Sexton0
Date of Patent
January 18, 2011
0Patent Application Number
105385560
Date Filed
November 28, 2003
0Patent Primary Examiner
Patent abstract
A small hardware implementation is provided for the Advanced Encryption Standard SubByte function that implements the affine transform and inverse transform in a single Affine-All transform using a multiplicative inverse ROM. The logic is greatly reduced and the maximum path delay is reduced compared to a multiplexor implementation and is slightly greater than a ROM implementation.
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