Method and apparatus for processing F-function in seed encryption system
An apparatus for processing an F-function in a SEED encryption system includes: an arithmetic operation masking conversion unit for converting a logical operation mask value obtained by performing a logical operation of a SEED F-function input value and a random mask value into an arithmetic operation mask value; and a masking G-function unit for taking the arithmetic operation mask value from the arithmetic operation masking conversion unit as an input and producing an arithmetic operation output.
Electronics and Telecommunications Research Institute
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You Sung Taesung Kyunghee Doo Ho Ju Han Yong-Je
Kang Kim Oh Choi Kim Choi