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Configuration of E mail Encryption Digital Signature

Configuration of E mail Encryption Digital Signature

Configuration of E-mail Encryption/Digital Signature
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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 ....................................................................................... 375
Step2 Configuration on Sender and Recipient ......................................................................... 377
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 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.
Step1 Configuration on the Machine
This section describes configuration procedures to set up a certificate with CentreWare 
Internet Services.
Note
You cannot use a self-signed certificate created with CentreWare Internet Services 
for S/MIME.
Setting up a Certificate using CentreWare Internet Services
To configure a certificate using CentreWare Internet Services, 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.370).
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Start CentreWare Internet Services.