This document is provided by Netscape for your information
only. It may help you take certain steps to protect the privacy and security
of your personal information on the Internet. This document does not, however,
address all online privacy and security issues, nor does it represent a recommendation
by Netscape about what constitutes adequate privacy and security protection
on the Internet.
Validation Settings
This section describes how to set Validation preferences and how to control Certificate Revocation List (CRL) settings.
For step-by-step descriptions of various tasks related to validation and CRLs, see How Certificate Validation Works.
Privacy & Security Preferences - Validation
This section describes how to use the Validation Settings panel. If you are not already viewing the panel, follow these steps:
- Open the Edit menu and choose Preferences.
- Under
the Privacy & Security category, click Validation. (If no subcategories
are visible, double-click Privacy & Security to expand the list.)
For background information on certificate validation, see How Certificate Validation Works.
CRL
A certificate revocation list (CRL) is a list of revoked certificates that is generated and signed by a certificate authority (CA).
It's possible to download a CRL to your browser, which can check it to ensure
that certificates are still valid before permitting their use for authentication.
Click Manage CRLs to see a list of the CRLs available to Certificate Manager.
For more information about managing CRLs, see Managing CRLs.
OCSP
The Online Certificate Status Protocol (OCSP) makes it possible for Certificate
Manager to perform an online check of a certificate's validity each time
the certificate is viewed or used. This process involves checking the certificate
against a certificate revocation list (CRL) maintained at a specified web
site. Your computer must be online for OCSP to work.
To specify how Certificate Manager uses OCSP, choose one of these settings in the OCSP section of Validation Settings:
- Do not use OCSP for certificate verification. Select this
setting if you don't want Certificate Manager to perform an online status
check each time it verifies a certificate. Instead, whenever Certificate
Manager performs certificate verification,
it only confirms the certificate's validity period and that it is correctly
signed by a CA whose own CA certificate is both listed under the CA Certificates
tab (in the main Certificate Manager window) and marked as trusted for issuing
that kind of certificate.
- Use OCSP to verify only certificates that specify an OCSP service URL.
Select this setting if you want Certificate Manager perform an online status
check each time it verifies a certificate that specifies a URL for the purpose
of performing such a check. If a URL is specified by the certificate, Certificate
Manager makes sure that the certificate is listed there as valid and checks
the validity period and trust settings.
- Use OCSP to verify all certificates, using the URL and signer specified here.
Select this setting if you want Certificate Manager to perform an online
status check each time it verifies any certificate. If you select this setting,
you should also choose the certificate from the Response Signer pop-up menu
that identifies the signer of the OCSP responses. With this setting, the
only certificates Certificate Manager recognises are those that can be verified
by an OCSP response signed with the Response Signer certificate (or signed
using a certificate that chains to it).
When you choose a Response Signer certificate from the pop-up menu, Certificate
Manager fills in the Service URL (if available) for that signer automatically.
If the Service URL is not filled in automatically, you must provide it yourself;
ask your system administrator for details.
Manage CRLs
This section describes how to use the Manage CRLs dialogue box. To view it, follow these steps:
- Open the Edit menu and choose Preferences.
- Under
the Privacy & Security category, click Validation. (If no subcategories
are visible, double-click Privacy & Security to expand the list.)
- Click Manage CRLs.
This dialogue box displays a list of the CRLs
that you have downloaded for use by your browser. Typically, you download
a CRL by clicking a URL. For information about how CRLs work, see Managing CRLs.
To select a CRL, click it. You can then perform any of these actions:
- Delete: Deletes the CRL permanently from your hard
disk. Don't do this unless you're sure you no longer need the CRL for validating
certificates. If in doubt, consult your system administrator.
- Settings: Opens the Automatic CRL Update Preferences
dialogue box, which allows you to activate automatic CRL updates for the selected
CRL and specify how frequently they should be performed.
- Update: Immediately updates the selected CRL (if possible).
The Manage CRLs dialogue box provides the following information about each CRL:
- Organisation (O): The name of the organisation that issued the CRL.
- Organisational Unit (OU): The name of the organisational unit that issued the CRL (such as the root CA for a particular kind of certificate).
- Last Update: The date on which the browser's copy of this CRL was last updated.
- Next Update: The next date on which an updated version of this CRL will be published by the CRL issuer.
- Auto Update:
Indicates whether Auto Update has been enabled for this CRL. To view the
settings that control auto updating, select the CRL and click Settings.
- Auto Update Status:
- If Auto Update has
not been enabled, or if it has been enabled but the next scheduled update
has not yet occurred, this field will be blank.
- After at least one auto update has occurred, this field shows
"failed" if the most recent auto update failed, or "OK" if the most recent
auto update was successful.
CRL Import Status
This section describes how to use the CRL Import Status dialogue box, which
appears when you first attempt to import a CRL or when you successfully update
it manually.
This dialogue box informs you
- whether your attempt to import or update the CRL was successful
- what organisation issued the CRL
- when the next update of this CRL will be published
- whether Automatic Update is enabled for this CRL
If Automatic Update is not enabled, you can turn it on from here:
- Yes: Click Yes to enable automatic updating of this
CRL. If you click this button, the Automatic CRL Update Preferences dialogue
box appears next. The next section describes how to set these preferences.
- No: Click No if you wish to leave Automatic Update disabled.
Automatic CRL Update Preferences
This section describes how to use the Automatic CRL Update Preferences
dialogue box. If you are not already viewing it, follow these steps:
- Open the Edit menu and choose Preferences.
- Under
the Privacy & Security category, click Validation. (If no subcategories
are visible, double-click Privacy & Security to expand the list.)
- Click Manage CRLs, then select the CRL whose auto update preferences you want to view or change.
- Click Settings.
This dialogue box displays the following options and information:
Click OK to confirm your choices.
18 June 2002
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