Payment authentication method and apparatus

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.