Cisco Cisco Email Security Appliance C650 Guía Del Usuario
19-6
Cisco AsyncOS 9.1 for Email User Guide
Chapter 19 S/MIME Security Services
Signing, Encrypting, or Signing and Encrypting Outgoing Messages using S/MIME
How to Sign, Encrypt, or Sign and Encrypt Outgoing Messages using S/MIME
Note
If you want to perform S/MIME signing, encryption, or signing and encryption using CLI, use the
smimeconfig
command. See Cisco AsyncOS for Email CLI Reference Guide.
Setting Up Certificates for S/MIME Signing
You must set up an S/MIME certificate for signing messages. The Email Security appliance allows you
to set up S/MIME signing certificates using one of the following methods:
to set up S/MIME signing certificates using one of the following methods:
•
Create a self-signed S/MIME certificate using the appliance. See
.
Steps
Do This
More Info
Step 1
Understand the S/MIME certificate
requirements.
requirements.
See
Step 2
Depending on your requirements, do one of the
following:
following:
•
For S/MIME signing, set up an S/MIME
signing certificate.
signing certificate.
•
For S/MIME encryption, set up the public
key of the recipient’s S/MIME certificate.
key of the recipient’s S/MIME certificate.
•
For S/MIME signing and encryption, set
up an S/MIME signing certificate and the
public key of the recipient’s S/MIME
certificate, respectively.
up an S/MIME signing certificate and the
public key of the recipient’s S/MIME
certificate, respectively.
See:
•
•
Step 3
Create a profile for signing, encrypting, or
signing and encrypting messages.
signing and encrypting messages.
See
.
Step 4
Define the conditions that messages must meet
in order for the appliance to sign, encrypt, or
sign and encrypt them.
in order for the appliance to sign, encrypt, or
sign and encrypt them.
See
Step 5
Determine when in the email workflow to sign,
encrypt, or sign and encrypt messages.
encrypt, or sign and encrypt messages.
See:
•
•
Step 6
Define groups of users for whom you want to
sign or encrypt messages.
sign or encrypt messages.
Create a mail policy.
See
Step 7
Associate the signing or encryption actions that
you defined with the user groups you defined.
you defined with the user groups you defined.
Associate the content filter with the mail policy.
See