mobile u shield. Mobile phone shield refers to the mobile phone password technology that uses mobile phones to realize the traditional USBKEY function. It does not rely on hardware password chips, but uses software to realize all functions such as reliable password equipment, password operation and CA digital certificate. It is the core technology to realize the application security of mobile Internet. China Bank Mobile Phone Shield refers to the mobile U-Shield that China UnionPay provides users with online application and management to support large transactions based on TSM, through the hardware-level information security storage capability of mobile phone manufacturers.

The mobile phone shield can provide cryptographic operation support, which can be used for identity authentication, electronic signature, data protection and so on.