1. Use your mobile phone to scan the QR code to complete platform registration, login, file encryption and decryption, signature, signature verification and other business processes.

2. Realized subject registration privileges and CA mutual recognition.

3. Online processing, use APP to realize digital certificate (CA) and electronic signature, and realize remote online opening and processing.

4. Mutual recognition of signatures and seals, users can apply for multiple seals on one mobile phone.