FIELD: radio engineering, communication.
SUBSTANCE: there is proposed a method of message secure exchange organization to perform a transaction between the terminal and a microprocessor card with a payment application stored in its memory in which the chain of certificates from the noted terminal is checked by the noted payment application; with a positive result of the verification of the noted chain of certificates, dynamic mutual authentication of the noted terminal and card is performed; with a positive result of the noted dynamic authentication secure message exchange keys are calculated in the noted payment application.
EFFECT: increased security of the message exchange channel between the microprocessor card and the payment application and the terminal.
4 cl, 5 dwg
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