Cisco Cisco Email Security Appliance C160 Mode D'Emploi
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Cisco AsyncOS 9.0 for Email User Guide
Chapter 19 S/MIME Security Services
Verifying, Decrypting, or Decrypting and Verifying Incoming Messages using S/MIME
How to Verify, Decrypt, or Decrypt and Verify Incoming Messages Using
S/MIME
S/MIME
Note
If you want to perform S/MIME verification, decryption, or decryption and verification using CLI, use
the
the
listenerconfig
>
hostaccess
command. See the CLI inline help for more details.
Setting Up Private Keys for Decrypting Incoming Messages
You must add your S/MIME certificate to the appliance for decrypting the messages. You can use the
Certificates page on web interface or
Certificates page on web interface or
certconfig
command in CLI.
Before You Begin
Make sure that the certificate you are planning to import meets the requirements described in RFC 5750:
Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 3.2 - Certificate Handling.
Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 3.2 - Certificate Handling.
Procedure
Step 1
Click Network > Certificates.
Step 2
Click Add Certificate.
Step 3
Choose Import Certificate.
Step 4
Enter the path to the certificate file on your network or local machine.
Step 5
Enter the password for the file.
Steps
Do This
More Info
Step 1
Depending on your requirements, do the
following:
following:
•
For S/MIME decryption, add your
S/MIME certificate to the appliance for
decrypting messages.
S/MIME certificate to the appliance for
decrypting messages.
•
For S/MIME verification, add the public
key of the sender’s S/MIME certificate to
the appliance for verifying messages.
key of the sender’s S/MIME certificate to
the appliance for verifying messages.
•
For S/MIME decryption and verification,
add your S/MIME certificate and the
public key of the sender’s S/MIME
certificate to the appliance.
add your S/MIME certificate and the
public key of the sender’s S/MIME
certificate to the appliance.
See
•
•
Step 2
Configure your mail flow policies to verify,
decrypt, or decrypt and verify incoming
messages using S/MIME.
decrypt, or decrypt and verify incoming
messages using S/MIME.
See
.
Step 3
(Optional) Define the action that the Email
Security appliance takes on decrypted or
verified messages.
Security appliance takes on decrypted or
verified messages.
See