What does WAPI mean?

WAPI refers to the wireless LAN authentication and confidentiality infrastructure. It is a security protocol and also a mandatory standard for wireless LAN security in China. WAPI is China's first independent innovation and intellectual property security access technology standard in the field of computer broadband wireless network communications.

WAPI (Wireless LAN Authentication and Privacy Infrastructure) is a wireless LAN authentication and privacy infrastructure. It is a security protocol and is also mandatory for wireless LAN security in China. The standard was first proposed by the State Key Laboratory of Integrated Business Network Theory and Key Technologies of Xi'an University of Electronic Science and Technology of China.

WAPI is a type of wireless transmission protocol like infrared, Bluetooth, GPRS, CDMA1X and other protocols. The only difference is that it is a transmission protocol in wireless local area network (WLAN). It It is a technology in the same field as the 802.11 transmission protocol.

There are currently only two standards in the global wireless LAN field, namely the IEEE 802.11 series of standards proposed by the American industry standards organization (including 802.11a/b/g/n/ac, etc.), and WAPI proposed by China standard. WAPI is my country's first independent innovation and intellectual property security access technology standard in the field of computer broadband wireless network communications.

This solution has been officially approved and released by the IEEE Registration Authority (IEEE Registration Authority), an organization authorized by the International Organization for Standardization ISO/IEC. It is allocated the Ethertype field for the WAPI protocol. This is also the only one in this field in China. Obtain approved protocol.

WAPI is also a security mechanism in China’s mandatory wireless LAN standards.

Different from WIFI's one-way encryption authentication, WAPI authenticates both directions, thus ensuring the security of transmission. The WAPI security system uses public key cryptography technology. The authentication server AS is responsible for the issuance, verification and revocation of certificates. The public key certificate issued by the AS is installed on the wireless client and wireless access point AP as their own digital identity certificate. When a wireless client logs in to the wireless access point AP, both parties must authenticate through the authentication server AS before accessing the network. Based on the verification results, only the mobile terminal holding a legal certificate can access the wireless access point AP holding a legal certificate.

The Wireless LAN Authentication and Privacy Infrastructure (WAPI) system includes the following parts:

1. WAI authentication and key management

2. WPI data transmission protection

The Wireless LAN Privacy Infrastructure (WPI) encrypts and decrypts the MPDU of the MAC sublayer, which is used for the digital certificate, key negotiation and transmission data encryption and decryption of WLAN devices respectively, thereby realizing the identity authentication of the device. Link authentication, access control and encryption protection of user information during wireless transmission.

WAPI Wireless LAN Authentication Infrastructure (WAI) not only has a more secure authentication mechanism and more flexible key management technology, but also realizes centralized user management of the entire basic network. Thus meeting more users and more complex security requirements.

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