What is a dynamic password?

Dynamic password is an unpredictable combination of random numbers generated according to a special algorithm, and each password can only be used once. At present, it is widely used in online banking, online games, telecom operators, e-commerce, enterprises and other application fields.

Because of the uncertainty of dynamic password generation and the limited number of times of use, it is one of the safest identity authentication technologies at present, and it is convenient and fast to use, and has little correlation with the platform used, so it has gradually become the mainstream identity authentication technology.

Extended data

Short message password requests a dynamic password containing 6 or more random numbers in the form of mobile phone short messages. The identity authentication system sends a random 6/8-digit password to the customer's mobile phone in the form of short message, and the customer enters this dynamic password when logging in or authenticating the transaction, thus ensuring the security of the system identity authentication. At present, the most popular hardware password card is based on time synchronization. The dynamic password is changed every 60 seconds, which is valid once and generates 6-bit /8-bit dynamic numbers.

Resources Baidu Encyclopedia-Dynamic Password