H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 9/28 (2006.01) H04L 9/06 (2006.01)
Patent
CA 2449662
A data transformation apparatus having: a data processing unit for inputting key data and performing at least one of encryption of data and decryption of data; and, a key generating unit for generating key data to be used by the data processing unit and supplying the key data to the data processing unit, the data transformation apparatus comprising a non-linear function unit (F) including: a key function unit for performing a logical operation of data to be transformed and the key data; an S function unit for converting data to be transformed into other data; and a P function unit for performing a logical operation among pieces of data to be transformed, and wherein the key function unit is placed between the S function unit and the P function unit in the non-linear function unit (F).
Aoki Kazumaro
Kanda Masayuki
Matsui Mitsuru
Moriai Shiho
Nakajima Junko
Kirby Eades Gale Baker
Mitsubishi Denki Kabushiki Kaisha
Nippon Telegraph And Telephone Corporation
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