Encrypting Communications
Overview
Encrypt networks communications using SSL (Secure Sockets Layer). This function is useful for establishing secure connections and protecting communications from alterations and interceptions.
There are 3 system SSL settings, listed here in order of least secure to most secure.
- Using the system's default certificate
- Using a certificate created on the system
- Using a certificate provided by a CA (Certificate Authority) upon request
This section shows the creation of a certificate on the machine while logged in to Web Connection as the administrator.
Installing Certificates
1
Click in order of [Security] tab - [PKI Settings] - [Device Certificate Setting], and then click [New Registration].
2
Select [Create and install a self-signed Certificate.] and click [OK].
3
Configure each of the items, and click [OK].
For [Country], enter the two-digit single-byte country code specified by ISO3166.
[Validity Period] Setting Range: 1 to 3650. 30 to 60 days is recommended as standard.
Using ECDSA encryption (Elliptic Curve Digital Signature Algorithm) for [Encryption Key Type] allows you to achieve even more secure communications. As this method also uses a comparatively shorter key length for encryption, it places less load on the network.
Enabling the SSL
1
Click in order of [Security] tab - [PKI Settings] - [SSL Setting].
2
Configure each of the items, and click [OK].
It is recommended to select all of the options for [SSL/TLS Version Setting].
Allocating Certificates
1
Click in order of [Security] tab - [PKI Settings] - [Protocol Setting].
2
Click [Create] for the protocol to which the certificate will be assigned.
3
Select the certificate to assign and click [OK].
4
Protocols to which a certificate has been assigned show a "*" next to them.
in the upper-right of a page, it turns into 
and is registered as a bookmark.