The analysis is as follows:

1. Download a certificate from a regular software download site, put the ASUE and AS certificates in the root directory of the SD card, and open the file management of the phone to see them.

2. Enter the common settings of your phone and click the "Security" option, as shown below.

3. After clicking on "Security", you will see an "Install from SD Card", click it.

4. If a wireless network with WAPI?CERT certificate encryption is detected, the certificate will be used, and click OK directly.

5. After pressing "OK", you will need to name the certificate, as shown below.

6. After naming it, select the required certificate, as shown below.

7. Open "WLAN" and see a plus sign below, click it directly.

8. After clicking, the Add Network "SSID" will appear, and then just select the certificate you just named.

Extended information

WAPI composition

WAPI consists of two parts: WAI (WLAN Authentication Infrastructure) and WPI (WLAN Privacy Infrastructure). WAI and WPI implement the authentication of user identities and the encryption of transmitted business data respectively. WAI uses a public key cryptography system and uses public key certificates to authenticate STA and AP in the WLAN system; WPI uses a symmetric cryptography algorithm. Encryption and decryption operations for MAC layer MSDU.

(1) WAPI access control entity

WAPI access control includes the following 4 entities.

1. Authentication service unit ASU (authentication service unit), whose basic function is to manage user certificates and identify user identities, etc., is an important component of the WAI authentication infrastructure based on public key cryptography technology part.

2. The certificate managed by ASU contains the public key and signature of the certificate issuer (ASU) and the public key and signature of the certificate holder STA and AP, and uses WAPI's unique elliptic curve as the digital signature. algorithm.

3. The authenticator entity AE (Authenticator Entity) is an entity that provides authentication operations for the authentication requester entity before accessing the service. This entity resides in the AP device or AC device. Authentication requester entity ASUE (Authentication SUpplicant Entity) is an entity that requests authentication operations before accessing services. This entity resides in STA.

4. ASE (Authentication Service Entity), an entity that provides mutual authentication services for the authenticator entity and the authentication requester entity. This entity resides in the ASU.

Reference material: Baidu Encyclopedia-WAPI composition