Cisco Cisco Email Security Appliance C650 Guia Do Utilizador
19-22
Cisco AsyncOS 9.1 for Email User Guide
Chapter 19 S/MIME Security Services
S/MIME Certificate Requirements
For detailed information about S/MIME certificates, see RFC 5750: Secure/Multipurpose Internet Mail
Extensions (S/MIME) Version 3.2 - Certificate Handling.
Extensions (S/MIME) Version 3.2 - Certificate Handling.
Before You Begin
•
Make sure that the public key meets the requirements described in
•
Make sure that the public key is in PEM format.
Procedure
Step 1
Click Mail Policies > Public Keys.
Step 2
Click Add Public Key.
Step 3
Enter the name of the public key.
Step 4
Enter the public key.
Step 5
Submit and commit your changes.
Note
Use the
smimeconfig
command to add public keys using CLI.
Before You Begin
Copy the export file to the
/configuration
directory of the appliance. For instructions to create an
export file, see
.
Procedure
Step 1
Click Mail Policies > Public Keys.
Step 2
Click Import Public Keys.
Step 3
Select the export file and click Submit.
Note
The import process may take longer if you are importing a file with large number of public keys.
Make sure that you adjust the web interface or CLI inactivity timeout accordingly.
Make sure that you adjust the web interface or CLI inactivity timeout accordingly.
Step 4
Commit your changes.
Private Key Size
Size of the private key to generate for the CSR.
Key Usage
Key usage is a restriction method that determines what a certificate can be
used for. The key usage extension must be specified and the following bit
must be set:
used for. The key usage extension must be specified and the following bit
must be set:
keyEncipherment
.