1. Double-click the shortcut of the digital signature tool to open the software.

2. Open the software and click Certificate Management to view the certificate information installed on your computer.

3. Click the option of installing test certificate in the digital signature tool interface, and a prompt will pop up. Click Yes.

4. After the test certificate is successfully installed, you will see the Asian integrity digital signature test certificate in the valid certificate.

5. Select the certificate to view, click the right mouse button, and click View in the pop-up options.