What is the dynamic password of China Bank's mobile banking?

1, the so-called "mobile banking dynamic password" means that when you are operating in mobile banking, the bank will send a short message to the mobile phone number you left in the bank at that time in order to confirm that you are operating. The short message contains a password consisting of several numbers (mostly 6 to 8 digits) and letters, which cannot be deciphered because it changes at any time and is not a fixed password in advance. As long as your mobile phone is not lost, the password is only known by the owner, that is, the cardholder. Usually, the password will expire in a few minutes. So it is a relatively safe protective measure. The condition is that the bank card, password and mobile phone cannot be stolen at the same time!

2. Dynamic password location: on the dynamic password card. The numbers on each dynamic password card are unique and different from others. When handling online banking, the staff has associated the password card with the debit card, which means that only the password card in hand can successfully log in to online banking.

Extended data

Dynamic password generation terminal

At present, there are four mainstream terminals for generating dynamic passwords: hardware tokens, SMS passwords, mobile phone tokens and software tokens.

Sms password

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.

Hardware token

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.

Mobile token

Mobile phone token is a kind of mobile phone client software, which generates a random 6-digit dynamic password every 30 seconds based on time synchronization. The password generation process does not generate communication and cost, and has the advantages of simple use, high security, low cost, no need to carry additional equipment, convenient access and no need for logistics. Mobile phone token is the development trend of dynamic password authentication in 3G era.

Baidu Encyclopedia: Dynamic Password Generation Terminal