In the digital envelope authentication mode, the device as the data sender must have the recipient's public key configured. Importing a peer certificate is a method to obtain the public key of a peer entity. This method connects the user identity information to the public key. It has high security and is applicable to large networks.
If the imported peer certificate is not used, release the certificate.
Run the display pki peer-certificate { name peer-name | all } command to check the imported peer certificate.