When swiping a credit card, it shows that bank card authentication is required to verify whether the user has access to the system. If the authentication fails, the access fails.

Authentication is to verify whether the user has access to the system. The mainstream authentication method is to use authentication authorization to verify whether the digital signature is correct.

There are many reasons for the failure of bank authentication:

1. If the account information reserved on the online banking is inconsistent with the account information (such as name, ID number and certificate type) you filled in when opening an account on our website;

2. If the customer's bank card is in the "Bank Unicom" mode (such as Pudong Development Card), the bank Unicom function must be enabled;

3. Some bank cards must be U-shielded at the counter (such as ICBC cards and CCB cards), but they cannot be authenticated.

Extended data:

Traditional authentication is verified by password. The premise of this method is that every user who obtains the password is authorized. When a user is created, a password is assigned to the user. The user's password can be specified by the administrator or applied by the user himself.

The disadvantage of this method is that once the password is stolen or the user is lost, the situation will be very troublesome and the administrator needs to modify the user password again.

Modern authentication can verify whether the user has access to the system, and manually verify the legal identity of the user before changing the password.

Baidu encyclopedia-authentication