Dell C7765DN MFP Color Laser Printer - Manual (Page 526)

21 Encryption and Digital Signature Settings
526
Configuration of E-mail Encryption/Digital Signature
This section describes how to encrypt e-mails and how to attach a digital signature to e-mails.
The following shows the reference section for each procedure.
Step1 Configuration on the Machine .....................................................................................526
Step2 Configuration on Sender and Recipient ......................................................................528
Installation Overview
To encrypt e-mails and attach a digital signature, configure the machine and your computer
as follows:
Note • To encrypt e-mails and attach a digital signature to e-mails between the machine and a computer, a
personal or device certificate for S/MIME of a recipient and the device certificate of the machine must
be set on the computer. Configure the following settings to the certificates:
- "e-mail address"
- If the certificate contains V3 extension "keyUsage", "digitalSignature" and "keyEncipherment" must
be asserted.
- If the certificate contains V3 extension "extendedKeyUsage", "emailProtection" must be set.
• Up to 100 addresses can be encrypted with S/MIME.
Configuration on the Machine
Configure a certificate on the machine. No certificate is registered on the machine by factory
default.
Configure the following settings to set up a certificate on the machine.
• Configuring certificates by Dell Printer Configuration Web Tool
- Set up HTTPS communications encryption settings, and then configure a certificate on
the machine.
Configuration on Sender and Recipient
To transmit e-mails encrypted by S/MIME and with digital signatures attached, register the
required certificate on equipment of a sender and a recipient.
Step1 Configuration on the Machine
This section describes configuration procedures to set up a certificate with Dell Printer
Configuration Web Tool.
Note • You cannot use a self-signed certificate created with Dell Printer Configuration Web Tool for S/MIME.
• The machine supports the capability to import the RSA public key (up to 4096 bits).
Setting up a Certificate using Dell Printer Configuration Web Tool
To configure a certificate using Dell Printer Configuration Web Tool, configure the
encryption settings for HTTP communications, and then import a certificate issued by
another CA to enable S/MIME.
For details on how to configure the encryption settings for HTTP communication, refer to
"Configuration of HTTP Communications Encryption" (P.521).
1
Start Dell Printer Configuration Web Tool.
For more information on how to start Dell Printer Configuration Web Tool, refer to "Starting Dell
Printer Configuration Web Tool" (P.464).
2
Import a certificate.