Data encryption apparatus and method

Details Data encryption apparatus and method Data encryption apparatus and method

H - Electricity

04

L

H04L 9/06 (2006.01)

Patent

CA 2298055

A data converting unit includes a key adding unit for performing an arithmetic addition modulo 2 32 for input data F and subkey data Ki and outputting the outcome as data G, and a data substituting unit for performing an exclusive-OR operation for corresponding bits in data Rot7(G) obtained by shift-rotating the data G by 7 bits toward higher-order bit positions, data Rot1(G) obtained by shift-rotating the data G by 1 bit toward higher--order bit positions, and the data G itself.

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