Security chip of telephone POS (point of sale)

Abstract

The invention relates to a security chip of a telephone POS (point of sale). The security chip mainly comprises a payment security module, a telephone function interface and a universal peripheral interface, wherein the payment security module comprises an on-chip CPU (central processing unit). An AHB (advanced high-performance bus) connected with the CPU is used for extending a device with a high-speed bus. An APB (advanced peripheral bus) connected with the CPU is used for extending a low-speed peripheral. An encryption and decryption unit connected with the AHB is used for encryption and decryption computing. A storage unit is connected with the AHB. A data protection unit connected with the AHB is used for storing information of security data under protection. A physical security unit connected with the AHB is used for defending various physical attacks. A bank card interface connected with the APB is used for supporting reading of back card data. The universal peripheral interface connected with the AHB or the APB is used for connecting a universal peripheral. The telephone function interface connected with the APB is used for supporting related functions of telephone payment. Payment security and telephone functions are integrated to provide a solution to a single chip of the telephone POS, which supports the payment security, and the security chip is highly safe, highly integrated, low in power consumption and cost and the like.

Description

technical field [0001] The invention relates to the fields of computer science and technology, information security and electronic payment, in particular to a security chip for a telephone POS payment terminal. Background technique [0002] As an innovative payment product combining telephone and POS payment, telephone POS has become one of the mainstream electronic payment channels alongside traditional POS and ATM after several years of development. However, with the rapid deployment of telephone POS, incidents such as terminal equipment security, credit card cashing out, and terminal mobile use have occurred from time to time, and some cases involved a particularly large amount of money. [0003] Of course, security has become the "lifeblood" of the development of telephone POS payment. On the one hand, banks require payment terminals to support IC card standards, eliminate terminals that do not meet the standards, and upgrade IC cards to systems such as the acquiring sy...

AI Technical Summary

Problems solved by technology

At present, there is no single-chip security chip solution to meet the design and application of telephone POS payment terminal products

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