Updated on 2024-03-14 GMT+08:00

Uploading a Certificate

If you select HTTPS for Client Protocol when you add a website to WAF, a certificate must be associated with the website.

If you upload a certificate to WAF, you can directly select the certificate when adding a website to WAF.

Prerequisites

You have obtained the certificate file and certificate private key.

Specification Limitations

You can upload as many certificates in WAF as the number of domain names that can be protected by your WAF instances in the same account.

Constraints

If you import a new certificate when adding a protected website or updating a certificate, the certificate is added to the certificate list on the Certificates page, and the imported certificates is counted in the number of created certificates.

Application Scenario

If you select HTTPS for Client Protocol, a certificate is required.

Procedure

  1. Log in to the management console.
  2. Click in the upper left corner of the management console and select a region or project.
  3. Click in the upper left corner and choose Security > Web Application Firewall to go to the Dashboard page.
  4. In the navigation pane, choose Objects > Certificates.
  5. Click Add Certificate.
  6. In the displayed dialog box, enter a certificate name, and copy and paste the certificate file and private key to the corresponding text boxes.

    Only .pem certificates can be used in WAF. If the certificate is not in .pem format, convert it into .pem locally by referring to Table 1 before uploading it.
    Table 1 Certificate conversion commands

    Format

    Conversion Method

    CER/CRT

    Rename the cert.crt certificate file to cert.pem.

    PFX

    • Obtain a private key. For example, run the following command to convert cert.pfx into key.pem:

      openssl pkcs12 -in cert.pfx -nocerts -out key.pem -nodes

    • Obtain a certificate. For example, run the following command to convert cert.pfx into cert.pem:

      openssl pkcs12 -in cert.pfx -nokeys -out cert.pem

    P7B

    1. Convert a certificate. For example, run the following command to convert cert.p7b into cert.cer:

      openssl pkcs7 -print_certs -in cert.p7b -out cert.cer

    2. Rename certificate file cert.cer to cert.pem.

    DER

    • Obtain a private key. For example, run the following command to convert privatekey.der into privatekey.pem:

      openssl rsa -inform DER -outform PEM -in privatekey.der -out privatekey.pem

    • Obtain a certificate. For example, run the following command to convert cert.cer into cert.pem:

      openssl x509 -inform der -in cert.cer -out cert.pem

    • Before running an OpenSSL command, ensure that the OpenSSL tool has been installed on the local host.
    • If your local PC runs a Windows operating system, go to the command line interface (CLI) and then run the certificate conversion command.

  7. Click Confirm.

Verification

The certificate you created is displayed in the certificate list.

Related Operations

  • To change the certificate name, move the cursor over the name of the certificate, click , and enter a certificate name.

    If the certificate is in use, unbind the certificate from the domain name first. Otherwise, the certificate name cannot be changed.

  • To view details about a certificate, click View in the Operation column of the certificate.
  • In the row containing the certificate you want, click Use in the Operation column to use the certificate to the corresponding domain name.
  • To delete a certificate, locate the row of the certificate and click More > Delete in the Operation column.
  • To update a certificate, locate the row of the certificate and click More > Update in the Operation column.