CFCA CryptoKit.UnionPay Extension is a digital certificate application extension developed by zeng.xi for China UnionPay Commerce. It is designed to be compatible with the latest version of Google Chrome browser. This extension is integrated into the China UnionPay Commerce system, allowing users to access certificate information and perform electronic signature-related tasks using the X509 digital certificate stored in their USBKEY.

With CFCA CryptoKit.UnionPay Extension, users can easily retrieve certificate information such as the certificate subject DN, issuer, and serial number. This extension provides a convenient way for users to access and utilize their digital certificates within the China UnionPay Commerce system.

Please note that this extension is specifically tailored for China UnionPay Commerce and may not be relevant or applicable to users outside of this system.