Title: Method for realizing encryption/decryption processing in SMS4 cipher algorithm
Application Number: 200610041863 Application Date: 2006.03.02
Publication Number: 1845213 Publication Date: 2006.10.11
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G09C1/00
Applicant(s) Name: China Instant Wireless Network Communications Co., Address: 710075
Inventor(s) Name: Lu Jiayin, Cao Jun, Yan Xiang
Attorney & Agent: xu beng
Abstract:
     A method for carrying out encryption and decryption treatment on the SMS4 code algorism is provided. The cycle encryption and decryption processing step of this method is to prepare constant array of data first, in which the external data are input into data register to perform initial data conversion management; then to perform second data conversion management; finally, to repeat additional data conversion management up to finish all set data-conversion processing procedure to obtain the result disposed by cycle encryption and decryption data. The invention solves the technical matters including many cycle times and low encryption efficiency of data conversion management in background technique. Adopting the invention to design integrated circuit can largely drop the system interference and costs.
Time: 14
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