U-shield means that when your account transfers, remits and pays, the system requires you to insert a U-shield and enter a password to determine whether the operator is the account. If the password can be entered, the system will execute the instruction. The password error system refused to execute the instruction, thus ensuring the security of the account.

U shield is to ensure payment security. After using U Shield, the online banking account can only be used on your own computer, so the bank account is very safe.

U Shield was launched by Industrial and Commercial Bank of China in 2003. It is a "smart guardian" dedicated to protecting the safety of online banking customers. It is an advanced security tool for netizens to handle online banking business. Because it looks like a U disk, it plays the role of a protective shield for online banking accounts, so it is called a U shield.

U Shield is a built-in micro smart card processor, which uses 1024-bit asymmetric key algorithm to encrypt, decrypt and digitally sign online data to ensure the confidentiality, authenticity, integrity and non-repudiation of online transactions.

Extended data:

Advantages of U shield:

1. Don't worry about the risks of online banking being hacked, fake websites and viruses. With a u shield. Protect your card number and password.

2. The payment method is very convenient, and it is no longer limited by various payment quotas, and it is easy to realize online transfer, remittance, payment and shopping payment.

3. Services are more diversified. With the U-Shield, you can also bind the U-Shield of ICBC to Alipay account, and use the U-Shield to authenticate the login to Alipay, thus ensuring the safety of your Alipay account.

After further exploration, we can know that this kind of new product has been certified twice by FIDO technology, and it has powerful functions such as unified standard, plug and play, driving-free, multi-purpose with one shield and so on. Although the utilization rate in China is not high, it is indeed one of the evolution directions of this kind of products.

Mobile phones and SIM cards can also be worn with shields.

Another direction of U-Shield evolution is the deep integration with existing products, such as using SE security unit and TEE trusted execution environment related technologies to realize the functions of U-Shield in wearable devices such as mobile phones, SIM cards and even other watches. This innovation does not destroy the classical asymmetric key PKI system used in the traditional U shield, but also inherits and develops it.

China Net-Traditional U-Shield is facing challenges, and innovation and evolution are on the way.