Step1 Configuration on the Machine......................................................................................................................................402

Step2 Configuration on Sender and Recipient .....................................................................................................................403

Installation Overview

To encrypt e-mails and attach a digital signature, configure the machine and your computer

as follows:

Note

 Configuration on the Machine

Set the certificate on the machine and enable the S/MIME communication.

Configure the following settings to set up a certificate on the machine.



Configuring certificates by CentreWare Internet Services

- 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.

The following shows the certificate settings necessary to encryption and digital signature.

Source

The machine

Computer

Another

machine

• 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. To configure the digital signature, the device certificate of the

machine is necessary. 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.

• For information on how to check it on Windows, refer to "How to check the certificate settings on

Windows" (P.391).

Destination

registered to the source

Computer

Personal certificate of the

computer

Another

Device certificate for S/MIME

machine

of another machine

The machine

Device certificate for S/MIME

of the machine

Device certificate for S/MIME

of the machine