UKey, also known as USB Key, is a small, reliable and high-speed storage device, which is directly connected to the computer through USB (Universal Serial Bus Interface). It is mainly used as a hardware carrier for securely storing digital certificates and private keys, and can be encrypted in hardware.
UKey combines the functions of data encryption and digital signature of digital certificate, which can be widely used in CA center, online banking, e-government, e-commerce and other industries to realize user identity authentication, data encryption protection, information integrity protection and other functions. It has the characteristics of perfect password function, fast operation speed, large file storage capacity, good security performance, small size, easy carrying and high cost performance.
The principle of digital certificate:
There are many numbers and English in the digital certificate. When using digital certificates for identity authentication, a 128-bit identity code will be randomly generated, and each digital certificate can generate a different corresponding number every time, which ensures the confidentiality of data transmission and is equivalent to generating a complex password.
Digital certificate binds the public key and the real identity of the holder, which is equivalent to the resident ID card in real life. The difference is that the digital certificate is no longer a paper certificate, but electronic data that contains the identity information of the certificate holder and is examined and issued by the certification center, which can be used in e-commerce and e-government more conveniently and flexibly.