User GuideIM 350/430 series

Protecting Communication Paths via a Device Certificate

This machine can protect its communication paths and establish encrypted communications using SSL/TLS, IPsec, S/MIME, or IEEE 802.1X. It can also protect PDFs using a PDF or PDF/A digital signature.

To use these functions, it is necessary to create and install a device certificate for the machine in advance.

The following types of device certificate can be used:

  • Self-signed certificate created by the machine

  • Certificate issued by a certificate authority

Important

  • The administrator is required to manage the expiration of certificates and renew the certificates before they expire.

  • The administrator is required to check that the issuer of the certificate is valid.