US 11,775,956 B2 · Non-contact communication method and communication device

Abstract

A non-contact communication method and a communication device are presented. The communication device includes a trusted execution environment (TEE). A first security application and a second security application are provided in a security element of the communication device. The first security application and an application in the trusted execution environment are communicationally connected by means of a first communication channel. The second security application and a near-field communication (NFC) module provided in the communication device are communicationally connected by means of a second communication channel. The first security application and the second security application are communicationally connected by means of a security channel. Using the non-contact communication method and the communication device, a security channel may be established between NFC and a TEE, which may enable NFC non-contact card reading for a TEE application.

Claims11

Dependent claims

A communication device, comprising a trusted execution environment, wherein

a security element is provided with a first security application and a second security application;
wherein the first security application is communicationally connected to an application in the trusted execution environment via a first communication channel;
the second security application is communicationally connected to an NFC module provided in the communication device via a second communication channel;
the first security application is communicationally connected to the second security application via a security channel;
and
the security channel implements communication by means of SIO.

3 more elements

A non-contact communication method for performing communication between an application in a trusted execution environment and an NFC module, comprising:

a first sending step, in which the application in the trusted execution environment sends a request via a first communication channel to a first security application provided in a security element;
a second sending step, in which the first security application receives and sends the request via a security communication channel to a second security application provided in the security element;
a card detection requesting step, in which the second security application receives the request and sends a card detection request to the NFC module via a second communication channel;
a card detecting step, in which the NFC module returns relevant card data to the second security application via the second communication channel after receiving the card detection request and detecting an NFC card;
a third sending step, in which the second security application returns the card data to the first security application via the security communication channel;
and
a fourth sending step, in which the first security application returns the card data to the application in the trusted execution environment via a first security communication channel;
and
the security communication channel is implemented by means of SIO.

6 more elements

Dependencies are inferred from the claim text.

Non-contact communication method and communication device

Life of this patent

Non-contact communication method and communication device

Life of this patent

Abstract

Claims11