Data transmission method and device

Abstract

The invention relates to a data transmission method and device between a non-contact front-end module and a safety module in near-field communication. Wherein, the data transmission method includes the steps: the non-contact front-end module transparently transmits the first data obtained from the non-contact identification device to the security module through a single-wire connection; the security module processes the first data to form second data; The non-contact front-end module transparently transmits the second data obtained from the single-wire connection security module to the non-contact identification device. Compared with the prior art, the data transmission method provided by the present invention can transmit non-contact data in real time between the non-contact front-end module and the safety module, so that the safety module can directly respond to the instructions sent by the PCD in the process of simulating the PICC, thereby The non-contact front-end module completely becomes a transparent transmission channel, which avoids the timing compatibility problem in the prior art and also overcomes the security problem caused by the non-contact front-end module saving the UID.

Description

technical field [0001] The invention relates to the technical field of near-field communication, in particular to a data transmission method and device between a non-contact front-end module and a safety module in near-field communication. Background technique [0002] The mobile non-contact application based on the mobile communication device is an application field where the technology and the market are relatively active at present, and the near field communication (Near Field Communication, NFC) technology is a typical representative. After several generations of development of NFC technology, its related technical standards and application specifications (such as ISO18092 and ISO21481) are becoming more and more mature, but the process of related products entering the market is much slower than expected. In addition to the long industrial chain involved in near-field communication technology, which leads to more complicated application models and business models, the si...

AI Technical Summary

Problems solved by technology

[0007] 2) Smart cards are often a closed application environment, and between different applications in different regions, even if it is the same smart card, its initial configuration will be different

When the UID can be rewritten, the uniqueness management of the UID will face major challenges, which will cause confusion in the account management of some application systems, and reduce the security of the system, making it easier to clone cards, for example.

[0015] In summary, although SWPSIM has become a mainstream solution for near field communication, and the corresponding technical standards have also been formulated, the delay problem of SWP interface and the derived UID management problem will have a certain impact on the future development of near field communication. effect, a more efficient solution is required

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