cos version of the smart card and verification device verification method
COS version checksum verification method and apparatus of the present invention provides a smart card types, COS version of the smart card verification method comprising the steps of: a smart card COS data into at least two data blocks; built in smart card and the preset check algorithm the initial value determining checksum for each data block; COS and check code data in accordance with the checksum data block, and the smart card, the smart card version of COS be verified. The present invention also provides a calibration apparatus species COS version smart card. COS version checksum verification method and apparatus of the present invention, a smart card COS data by the smart card into a plurality of data blocks through a plurality of data blocks and comparing the checksum COS data check code to achieve the smart card the COS version valid checksum.