Joke Collection Website - Blessing messages - Definition of SMS matrix password

Definition of SMS matrix password

The function of DKEY MATRIX is similar to that of an electronic port card. It sends 3-5 matrix strings composed of random letters and numbers to the user's mobile phone through short messages. Form:

8X3J4Q1K

Mu2LS92YXF

79WB1LTZC

When a user logs in or trades online, the server issues a random challenge code. For example, please enter the 1st, 8th, 15th and 3th digits or letters on the SMS matrix password, and the user enters the corresponding coordinate value of 81SC in the password box.