Epson WF-3825 - Using a Digital Certificate

Related Information
& “Controlling protocols” on page 360
& “Protocols you can Enable or Disable” on page 360
Using a Digital Certicate
About Digital
Certication
❏ CA-signed
Certicate
is
is a
certicate
signed by the CA
(Certicate
Authority.) You can obtain it to apply to the
Certicate
Authority. is certicate certies the existence of the printer is and used for SSL/TLS communication so that
you can ensure the safety of data communication.
❏ CA Certicate
is is a certicate that is in chain of the CA-signed Certicate, also called the intermediate CA certicate. It is
used by the web browser to validate the path of the printer's certicate when accessing the server of the other
party or Web Cong.
For the CA Certicate, set when to validate the path of server certicate accessing from the printer. For the
printer, set to certify the path of the CA-signed Certicate for SSL/TLS connection.
You c a n o b t a in t h e C A
certicate
of the printer from the
Certication
Authority where the CA
certicate
is
issued.
Also, you can obtain the CA certicate used to validate the server of the other party from the Certication
Authority that issued the CA-signed
Certicate
of the other server.
❏ Self-signed Certicate
is is a certicate that the printer signs and issues itself. It is also called the root certicate. Because the issuer
certies itself, it is not reliable and cannot prevent impersonation.
Use it when making the security setting and performing simple SSL/TLS communication without the CA-
signed Certicate.
If you use this certicate for an SSL/TLS communication, a security alert may be displayed on a web browser
because the certicate is not registered on a web browser. You can use the Self-signed Certicate only for an
SSL/TLS communication.
Related Information
& “
Conguring
a CA-signed
Certicate
” on page 364
& “Updating a Self-signed
Certicate
” on page 367
& “Conguring a CA Certicate” on page 368
Conguring a CA-signed Certicate
Obtaining a CA-signed Certicate
To obtain a CA-signed
certicate,
create a CSR
(Certicate
Signing Request) and apply it to
certicate
authority.
You can create a CSR using Web Cong and a computer.
Follow the steps to create a CSR and obtain a CA-signed certicate using Web Cong. When creating a CSR using
Web Cong, a certicate is the PEM/DER format.
Administrator Information > Advanced Security Settings > Using a Digital Certicate
364