Electronic payment system dual-processor sub-system communication method and calling method thereof

Abstract

The invention relates to an electronic payment system dual-processor subsystem communication method and a calling method thereof. The communication method comprises the following steps that: a uniform communication channel is established through a communication management program of a conventional processor and a safety processor. The calling method comprises the following steps that: a PDA subsystem calls the shared memory interaction established by DLL and the communication management program and calls the PCI subsystem through the communication channel, or the communication management program resolves and executes an API function corresponding to a communication order which is transmitted by the PCI subsystem through the communication channel so as to realize the calling of the PDA subsystem through the PCI subsystem. The electronic payment system dual-processor sub-system communication method and the calling method can realize the mutual calling between the PDA subsystem and the PCI subsystem, and can improve the calling efficiency of the PCI subsystem through the PDA subsystem.

Description

technical field [0001] The invention relates to electronic commerce, in particular to a communication between two processor subsystems of an electronic payment system and a calling method thereof. Background technique [0002] With the increasing activities of e-commerce, the requirements for data security are also increasing. Therefore, various levels of security standards have been successively introduced in many aspects. In particular, many organizations in the field of electronic payment jointly established an international organization to formulate security specifications in 2006. -PCI (Payment Card Industry, payment card industry), launched the v2.0 version of the security specification for payment equipment, which has very specific and strict requirements for the security of data storage, password input, and transmission. In order to meet international safety standards, various design methods have emerged. At the same time, dedicated security processing chips also ap...

AI Technical Summary

Problems solved by technology

At present, the security processor in this dual-processor electronic payment system provides an external serial port command interface, so that the ordinary processor can communicate with the security processor by sending serial port commands, and call the functions and interface devices of the PCI subsystem. Imperative communication methods are unidirectional and fixed, inflexible and inefficient especially for multi-PDA applications when coordinating calls to PCI

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