Method and device for controlling information transmission, and smart terminal

1. A method for controlling information output, comprising:

when it is detected that a smart terminal in which a near field communication (NFC) chip is disposed is started, disabling an information output function of the NFC chip;

after disabling the information output function of the NFC chip, receiving an instruction for outputting information sent by the NFC chip, information to be outputted being in an unavailable state;

performing authentication of an identity of a user who triggers the information output; and

when it is determined that the authentication of the identity is passed, enabling the information output function of the NFC chip and setting the information to be outputted as in an available state, such that the NFC chip can output the information,

wherein the information to be outputted is information about payment, the information output function of the NFC chip is a card emulation function of NFC, and the card emulation function causes a smart terminal in which the NFC chip is disposed to become a card emulation device for storing information to be read out.

2. The method of claim 1 , wherein performing authentication of an identity of a user who triggers the information output comprises:

acquiring identity information of the user; and

comparing the acquired identity information with reference identity information which is previously stored, and if the acquired identity information matches the reference identity information, determining that the authentication of the identity of the user is passed.

3. The method of claim 2 , wherein the identity information is a fingerprint.

4. The method of claim 1 , wherein the authentication is performed in a trusted execution environment (TEE), and the TEE is disposed in a smart terminal in which the NFC chip is disposed.

5. A smart terminal, comprises: a processor; and a memory for storing instructions executable by the processor; wherein the processor is configured to perform:

when it is detected that a smart terminal in which a near field communication (NFC) chip is disposed is started, disabling an information output function of the NFC chip;

after disabling the information output function of the NFC chip, receiving an instruction for outputting information sent by the NFC chip information to be outputted being in an unavailable state;

performing authentication of an identity of a user who triggers the information output; and

if it is determined that the authentication of the identity is passed, enabling the information output function of the NFC chip and setting the information to be outputted as in an available state, such that the NFC chip can output the information,

wherein the information to be outputted is information about payment, the information output function of the NFC chip is a card emulation function of NFC, and the card emulation function causes the smart terminal in which the NFC chip is disposed to become a card emulation device for storing information to be read out.

6. The smart terminal of claim 5 , wherein the processor is further configured to perform:

acquiring identity information of the user; and

comparing the acquired identity information with reference identity information which is previously stored, and if the acquired identity information matches the reference identity information, determining that the authentication of the identity of the user is passed.

7. The smart terminal of claim 6 , wherein the identity information is a fingerprint.

8. The smart terminal of claim 5 , wherein the authentication is performed in a trusted execution environment (TEE), and the TEE is disposed in the smart terminal in which the NFC chip is disposed.

9. A non-transitory computer-readable storage medium having stored therein instructions that, when executed by a processor of a smart terminal, cause the smart terminal to perform a method for controlling information output, wherein the method comprises:

when it is detected that a smart terminal in which a near field communication (NFC) chip is disposed is started, disabling an information output function of the NFC chip;

after disabling the information output function of the NFC chip, receiving an instruction for outputting information sent by the NFC chip, information to be outputted being in an unavailable state;

performing authentication of an identity of a user who triggers the information output; and

if it is determined that the authentication of the identity is passed, enabling the information output function of the NFC chip and setting the information to be outputted as in an available state, such that the NFC chip can output the information,

wherein the information to be outputted is information shout payment, the information output function of the NFC chip is a card emulation function of NFC, and the card emulation function causes the smart terminal in which the NFC chip is disposed to become a card emulation device for storing information to be read out.

10. The non-transitory computer-readable storage medium of claim 9 , wherein performing authentication of an identity of a user who triggers the information output comprises:

acquiring identity information of the user; and

comparing the acquired identity information with reference identity information which is previously stored, and if the acquired identity information matches the reference identity information, determining that the authentication of the identity of the user is passed.

11. The non-transitory computer-readable storage medium of claim 10 , wherein the identity information is a fingerprint.

12. The non-transitory computer-readable storage medium of claim 9 , wherein the authentication is performed in a trusted execution environment (TEE), and the TEE is disposed in the smart terminal in which the NFC chip is disposed.