Certificates are used to authenticate users. Certificates are issued to you by various CAs (Certification Authorities). Each CA also issues a certificate to itself. This Certificate is required in order to validate communication with the CA.

This screen lists both the Trusted Certificate - the certificates of each CA itself - and Self Certificates - the certificates issued to you.

Trusted Certificates

Subject Name (CA)	The "Subject Name" is always the company or person to whom the Certificate is issued. For trusted certificates, this will be a CA.
Issuer Name	The CA (Certification Authority) which issued the Certificate.
Expiry Time	The date on which the Certificate expires. You should renew the Certificate before it expires.

Self Certificates

Name	The name you assigned to this Certificate. You should select a name which helps to identify this particular certificate.
Subject Name	The company or person to whom the Certificate is issued.
Issuer Name	The CA (Certification Authority) which issued the Certificate.
Expiry Time	The date on which the Certificate expires. You should renew the Certificate before it expires.

Operations

Deleting	To delete a certificate (either Trusted or Self), select its checkbox in the "Delete" column, then click the "Delete" button on the top of the column. You can delete multiple certificates at once.
Add Trusted Certificate	To add a new Trusted certificate, click the "Add Trusted Certificate" button. See below for details.
Add Self Certificate	To add a new Trusted certificate, click the "Add Self Certificate" button to start the procedure.

Add Trusted Certificate

After obtaining a new Certificate from the CA, you need to upload it this device: Click the "Browse" button, and locate the certificate file on your PC Select the file. The name will appear in the "Certificate File" field. Click "Upload" to upload the certificate file to this device. Click "Back" to return to the Trusted Certificate list. The new Certificate will appear in the list.