METHOD FOR CONFIRMING DATA IN CPU CARD

摘要

A method for safely confirming key data in a CPU card is disclosed. The method comprises: a confirmation password is generated by the CPU card; the data to be confirmed and the confirmation password are transformed; the transformed data to be confirmed and the transformed confirmation password are outputted through an output interface of the CPU card; the confirmation password is inputted through an input interface of the CPU card; the data to be confirmed is confirmed by the CPU card when the received confirmation password matches the confirmation password generated by the CPU card. The method can be used in online pay and the modification and the replacement of key data in the CPU card. Combining with a good cryptographic protocol, the problem of safely using services such as a network bank and a game in a possibly unsafe computer terminal can be simply and safely resolved.