Aiming at the demand of data encryption storage and miniaturization of storage unit for measurement and control computer,a cryptographic memory card integrating a variety of communication interfaces was designed by a-dopting domestic PSOC chip FMQL45T900.Logic design was used to realize the encrypted storage of RS485,CAN,1553B interface and network port data;the encryption algorithm was realized by SM4 algorithm,and the memory card had the functions of time synchronization and one-key destruction at the same time.Through actual testing,the memory card can meet the needs of the measurement and control computer for data encryption and stor-age,and stable performance.
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