Your successful payment in Alipay means that you pay with Alipay Dragon Card, but not through the online banking of CCB.
UKEY is a digital certificate for online banking payment of CCB.
To use UKEY, you have to log in to CCB online banking to use it.
Because Alipay is the website of non-financial institutions, it is easy to be hacked, and the websites of financial institutions are much safer, and the online banking of CCB has always been the safest online banking in China. Haha ~
Since you have UKEY, when you pay on Alipay, don't pay directly through Alipay Dragon Card.
It is best to pay through the "online banking payment" channel, so that you will enter the interface of choosing a bank. At this point, you select CCB, and then click Next to enter the CCB personal online banking login page, log in as prompted, select the bound CCB card, enter the payment password, and click Next to confirm. If you forget, the box for entering UKEY will pop up, and then you can complete the payment.
In the past, traditional electronic certificates, such as Taobao's, were all stored in computers or mobile storage devices, but they were unsafe and might be poisoned, so poisoning was unsafe.
The mobile e-cert UKEY is different. The design of the USB flash drive itself has a firewall, which is very convenient to use. When you go to another computer or change computers, just plug in UKEY, and you don't need to uninstall the certificate to reinstall it. Too much trouble!