Payment authentication method and apparatus

1. A payment authentication method, comprising:

obtaining authentication information entered by a user during payment;

generating emotion characteristic information according to a combination of current facial expressions of the user when the user enters the authentication information, wherein generating the emotion characteristic information comprises:

detecting the combination of current facial expressions of the user through a camera;

recognizing data corresponding to emotions conveyed by the combination of current facial expressions through a facial expression recognition system, wherein the facial expression recognition system stores expression units for expressing facial expressions, and a database of a correspondence between a combination of the expression units and the emotions conveyed by the combination of current facial expressions including clenched teeth, closed or open eyes, a constrictive nose, or a head swayed left and right; and

generating the emotion characteristic information according to the data;

determining, according to the emotion characteristic information, whether a payment scenario is a normal payment scenario when the authentication information is valid;

performing security control on the payment according to whether the payment scenario is the normal payment scenario; and

photographing or videotaping a site of the payment when the payment scenario is not the normal payment scenario.

2. The payment authentication method of claim 1 , wherein determining whether the payment scenario is the normal payment scenario comprises:

comparing the emotion characteristic information with reference emotion characteristic information; and

determining, according to a comparison result, whether the payment scenario is the normal payment scenario.

3. The payment authentication method of claim 1 , wherein performing the security control on the payment comprises sending help information to a preset contact when the payment scenario is not the normal payment scenario.

4. The payment authentication method of claim 1 , further comprising generating the emotion characteristic information according to a sound when the user enters the authentication information, wherein the sound comprises at least one of tone information, speed information, amplitude information, or frequency information of the sound of the user.

5. The payment authentication method of claim 1 , further comprising generating the emotion characteristic information according to a sign when the user enters the authentication information, wherein the sign comprises at least one of body temperature information, pulse information, respiration information, blood pressure information, blood oxygen information, or heart rate information of the user.

6. The payment authentication method of claim 1 , further comprising:

obtaining current action characteristic information when the user enters the authentication information, wherein the current action characteristic information comprises at least one of speed information, touch area information, displacement information, or particular finger information of pressing with a finger when fingerprint payment is used; and

determining, according to the current action characteristic information, whether a payment scenario is a normal payment scenario when the authentication information is valid.

7. The payment authentication method of claim 6 , wherein determining whether the payment scenario is the normal payment scenario comprises:

comparing the current action characteristic information with proper action characteristic information; and

determining, according to a comparison result, whether the payment scenario is the normal payment scenario.

8. The payment authentication method of claim 6 , wherein the authentication information is fingerprint information.

9. The payment authentication method of claim 1 , further comprising displaying a payment result to the user when the payment scenario is the normal payment scenario.

10. The payment authentication method of claim 1 , further comprising suspending the payment when the payment scenario is not the normal payment scenario.

11. A payment authentication apparatus, comprising:

a memory; and

a processor coupled to the memory and configured to:

obtain authentication information entered by a user during payment;

generate emotion characteristic information according to a combination of current facial expressions of the user when the user enters the authentication information, wherein when generating the emotion characteristic information, the processor is further configured to:

detect the combination of current facial expressions of the user through a camera;

recognize data corresponding to emotions conveyed by the combination of the current facial expressions through a facial expression recognition system, wherein the facial expression recognition system stores expression units for expressing facial expressions, and a database of a correspondence between a combination of the expression units and the emotions conveyed by the combination of the current facial expressions including clenched teeth, closed or open eyes, a constrictive nose, or a head swayed left and right; and

generate the emotion characteristic information according to the data;

determine, according to the emotion characteristic information, whether a payment scenario is a normal payment scenario when the authentication information is valid;

perform security control on the payment according to whether the payment scenario is the normal payment scenario; and

photograph or videotape a site of the payment when the payment scenario is not the normal payment scenario.

12. The payment authentication apparatus of claim 11 , wherein when the authentication information is valid, the processor is further configured to:

compare the emotion characteristic information with reference emotion characteristic information; and

determine, according to a comparison result, whether the payment scenario is the normal payment scenario.

13. The payment authentication apparatus of claim 11 , further comprising a transmitter, wherein the transmitter is configured to send help information to a preset contact when the payment scenario is not the normal payment scenario.

14. The payment authentication apparatus of claim 11 , wherein the processor is further configured to:

obtain a sound when the user enters the authentication information; and

generate the emotion characteristic information according to the sound when the user enters the authentication information, and

wherein the sound comprises at least one of tone information, speed information, amplitude information, or frequency information of the sound of the user.

15. The payment authentication apparatus of claim 11 , wherein the processor is further configured to:

obtain a sign when the user enters the authentication information; and

generate the emotion characteristic information according to the sign when the user enters the authentication information, and

wherein the sign comprises at least one of body temperature information, pulse information, respiration information, blood pressure information, blood oxygen information, or heart rate information of the user.

16. The payment authentication apparatus of claim 11 , wherein the processor is further configured to:

obtain action characteristic information when the user enters the authentication information, wherein the action characteristic information comprises at least one of speed information, touch area information, displacement information, or particular finger information of pressing with a finger when fingerprint payment is used; and

determine, according to the action characteristic information, whether a payment scenario is a normal payment scenario when the authentication information is valid.

17. The payment authentication apparatus of claim 16 , wherein when the authentication information is valid, the processor is further configured to:

compare the action characteristic information with proper action characteristic information; and

determine, according to a comparison result, whether the payment scenario is the normal payment scenario.

18. The payment authentication apparatus of claim 16 , wherein the authentication information is fingerprint information.

19. The payment authentication apparatus of claim 11 , wherein the processor is further configured to display a payment result to the user when the payment scenario is the normal payment scenario.

20. The payment authentication apparatus of claim 11 , wherein the processor is further configured to suspend the payment when the payment scenario is not the normal payment scenario.