Chapter 33 Configuring Certificates
Local Certificate Authority
Note The local CA provides a certificate authority on the adaptive security appliance for use with SSL VPN connections, both browser- and
User enrollment is by browser webpage login. The Local CA integrates basic certificate authority functionality on the security appliance, deploys certificates, and provides secure revocation checking of issued certificates.
The following Local CA options allow you to initialize and set up the Local CA server and user database:
•Configure the Local CA Server on the security appliance. See Configuring the Local CA Sever.
•Revoke/Unrevoke Local CA Certificates and update CRL. See Manage User Certificates.
•Add, edit, and, delete Local CA users. See Manage User Database.
Default Local CA Server
The Local CA window displays the parameters to be configured for setting up a Local CA Server on the security appliance. The default characteristics of the initial Local CA server are listed in the following:
Configurable Parameters
Enable/Disable buttons activate or deactivate the Local CA server.
The Enable passphrase secures the Local CA server from unauthorized or accidental shutdown
Certificate Issuer’s Name
Issued certificate keypair size
Local CA Certificate
Length of time the server certificate is valid
Length of time an issued user certificate
Simple Mail Transfer Protocol (SMTP) Server IP Address for Local CA
Subject line in Local CA
More Options
Certificate Revocation List (CRL) Distribution Point (CDP), the location of the CRL on the Local CA security appliance
Length of time CRL is valid
Database Storage Location
Defaults
Default is disabled. Select Enable to activate the Local CA server.
Required - No default. Supply a word with a minimum of seven alphanumeric characters)
cn=hostname.domainname
1024 bits per key
1024 bits per key
Server Certificate=3 yrs.
User Certificate=1 yr.
Required - No default. You supply the SMTP
mail server IP address.
Required - No default. Supply an
“Certificate Enrollment Invitation”
More Defaults
Specify the location of the CRL on the Local CA security appliance, http://hostname.domain/+CSCOCA+/asa_ca.crl
CRL =6 hrs.
Optional - No default Supply a
24 hours
| Length of time a | 72 hrs. (three days) | |||
| Days be expiration reminders are sent | 14 days prior to certificate expiration. | |||
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