ZyXEL NSA-220 Plus User Guide - Page 273

Chapter 12 Maintenance Screens 12.6.1 Modifying or Creating a Certificate When you select the Edit a self-signed CA certificate option, then click the Edit button, a screen opens to allow you to make adjustments to the NSA's public key certificate. The screen is also the same for the Create a certificate authorized by other CA option. Figure 120 Maintenance > SSL > Create or Edit a Certificate The following table describes the labels in this screen. Table 100 Maintenance > SSL > Create or Edit a Certificate LABEL DESCRIPTION Common Name This name describes the certificate's origin, either in the form of an IP address or a domain name. Host IP Address Select this option and enter the NSA's IP address if you want to use this for the common name. Host Domain Name Select this option and enter the NSA's domain name if you want to use this for the common name Organizational Unit (Optional) Enter this name of the organizational unit which owns or maintains the NSA. This is an optional field. Organization (Optional) Enter this name of the organization or company which owns or maintains the NSA. This is an optional field. Country (Optional) Enter this name of the country in which the NSA is located. This is an optional field. Key Type Select the certificate's key type, either RSA or DSA.RSA is a public-key encryption and digital signature algorithm, while DSA is only a digital signature algorithm. Key Length Select the encryption key length. The longer the key, the better the encryption security. The only drawback to having a long key is that the file encrypted with it swells in size as well. NSA-220 Plus User's Guide 273