8.5 Lost Card Scenarios

8.5.1 Lost Card Scenario Preference

The Lost Card Scenario option determines how SecureLogin handles a user forgetting, losing or damaging a smart card. The Lost Card scenario option can only be used if, the Enable passphrase security system option is enabled, that is set to either Yes or Hidden.

NOTE:For users upgrading from Novell SecureLogin version 5.5, setting Enable passphrase security system to Hidden is equivalent to setting the old Disable passphrase security system to Off.

If the lost smart card is used to encrypt single sign-on data and a card is lost, stolen, or damaged, and key escrow or recovery is not used, the user does not have access to single sign-on data unless Enable passphrase security system is set to Yes or Hidden.

  • If Enable passphrase security system is set to Yes, if the user has previously set a passphrase, and if Lost card scenario is set to Allow Passphrase, the user is prompted to answer with his or her passphrase before SecureLogin is available.

  • If Enable passphrase security system is set to Hidden, the user is not prompted for the answer and SecureLogin loads seamlessly.

Allow Passphrase

This preference allows the user to start Novell SecureLogin using their passphrase if their smart card is not available. The Enable passphrase security system preference must be set to Yes or Hidden for this to work. Hidden replaces a user-generated passphrase with a system-generated passphrase, effectively removing the need for the user to remember the passphrase answer.

IMPORTANT:For the user to decrypt data using their passphrase, the passphrase must already have been set. Administrators cannot simply toggle the Enable passphrase security system preference on the day the user forgets their smart card unless the user has previously set a passphrase (or had it randomly generated using Hidden).

NOTE:Administrators can manually disable inheritance of higher level preferences by selecting the Yes option for Stop walking here in the Novell SecureLogin Administrative Management Utility, Preferences – General options.

Default

The default preference is to allow the user to start Novell SecureLogin using their passphrase, unless it inherits a Lost card scenario preference from a higher-level container.

8.5.2 Requiring a Smart Card

The Require smart card option prevents a user from starting single sign-on without his or her smart card. This option is for high security implementations where organizations want to tie the use of a user's single sign-on credentials to the user's smart card. This means that the user cannot access single sign-on with any other method; that is, they cannot use a username and password without the smart card.

IMPORTANT:If the Require smart card option is changed while the user is logged in, refreshing the cache using the Advanced > Refresh Cache option from the taskbar does not refresh the Lost card scenario option.

The user must log out and log in again (or restart SecureLogin) for the new option to take effect.

8.5.3 Allowing a Passphrase

The Allow passphrase option must be used in conjunction with the Enable passphrase security system option. It allows the user to start SecureLogin by using a passphrase if the smart card is not available. The passphrase security system must be set to Yes or Hidden for this setting to apply.

The Hidden option replaces a user-generated passphrase with a system-generated passphrase, effectively removing the need for the user to remember the passphrase answer.

IMPORTANT:For the user to decrypt data using a passphrase, the passphrase must already be set. You cannot simply toggle the Enable passphrase security system setting to on the day the user forgets a smart card unless the user has previously set a passphrase (or had it randomly generated by using the Hidden option).

The Default option allows the user to start SecureLogin by using a passphrase if the smart card is not available through the Allow Passphrase option. Alternatively, this option inherits the Lost Card scenario preference set by the higher-level container.

You can manually disable inheritance of higher-level options by selecting the Yes option for Stop walking here (SecureLogin Administrative Management utility > Preferences > General options.)

8.5.4 Passphrases for Temporary Access

There are a number of options available that permit access if a user loses or forgets his or her smart card. For example, If a user loses or forgets his or her smart card and the Lost card scenario option is set to Require smart card, you can grant temporary access to systems by resetting the user's password. The user is then required to log in and enter the passphrase. This option is possible only if the Enable passphrase security system is turned on.

However, the user should not expect easy or automatic access to the system. Users should understand that, a strong and secure solution has been implemented and that they have the responsibility of looking after their own smart cards.

8.5.5 Using a Card Management System

Enterprise server or web-based card management system (CMS) software enables corporations to implement and easily manage smart card-based identity management, provisioning, and authentication devices and enforce policy across geographically-dispersed locations.

These systems provide a complete and flexible solution to manage the issuance, administration, and configuration required for the successful and seamless smart card integration with SecureLogin 6.0 and later and Smart Card Password Login.

Novell CMS provides a complete and flexible solution to manage the issuance, administration and configuration required for a successful and seamless smart card integration with Novell SecureLogin and Smart Card Password Login (SCPL). It can be configured to perform key escrow, archive and recovery as described throughout this document.

Restoring a Smart Card Using Card Management System

You must then reset the user's corporate passwords and issue a new smart card (with a new key pair) before the user can log in and reconfigure the single sign-on applications using SecureLogin again.

The user must manually enter all application credentials into SecureLogin the first time he or she logs in after the data was cleared from the directory.

Enterprises should consider implementing key escrow, archiving, or backup through a suitable CMS to allow a user's encryption key to be recovered in the event of a lost or damaged smart card. The use of a CMS is crucial if an enterprise opts to deploy corporate smart cards with a very high level of security by disabling the Enable passphrase security system option combined with using the Store credentials on smart card set to Yes and the Use smart card to encrypt SSO data options of PKI credentials or Key generated on smart card options.

In the event of a lost or damaged smart card, the user can never decrypt their single sign-on data because the key stored on the smart card is not recoverable.

It is recommended that you extensively test the CMS and smart card restoration techniques before selecting the high security options described above that tie single sign-on to the user's smart card.

The procedure to reset a user’s data store is described in Section 2.6, Deleting or Re-setting User Data.

Accessing Without a Card Management System

If an enterprise opts to deploy corporate smart cards without a suitable card management system (CMS) user key escrow, archiving, and backup system combined, you can still create a very high level of security by setting Enable passphrase security system to No and selecting the Use smart card to encrypt SSO data options of PKI credentials or Key generated on smart card options. However, in the event of a lost or damaged smart card the user can never decrypt the single sign-on data because the key stored on the smart card is not recoverable.

WARNING:Deleting the user's single sign-on datastore permanently deletes the user's corporate applications, credentials, options, and user policies.

If you still decide to delete the user's existing single sign-on configuration data store, delete it from the Advanced Setting > Datastore tab.

The administrator must then reset the user’s corporate passwords and issue a new smart card (with a new key pair) before the user can log on and reconfigure their single sign-on enabled applications using Novell SecureLogin again.

The user will have to re‑enter all their application credentials into Novell SecureLogin the first time it is used after having them deleted from the directory.

PKI Credentials

If the Use smart card to encrypt SSO data option is set to use PKI credentials to encrypt a user's single sign-on data and Enable passphrase security system is set to No, in the event of a lost or damaged smart card the user can never decrypt the single sign-on data because the key stored on the smart card is the only key that can be used for decryption and is not recoverable unless key archiving and recovery are implemented.

If a CMS-based key archive is used, then the encryption key needs to be recovered to the new smart card, the single sign-on data unencrypted, and an administrator needs to chose a new certificate to encrypt the user’s data.

If you are using the enterprise CMS-based recovery system, you must issue the user a replacement smart card based on a CMS backup of the user's original key.

Key Generated on Smart Card

Similarly, if the Use smart card to encrypt SSO data option is set to use Key generated on smart card to encrypt a user's single sign-on data, then in the event of a lost or damaged smart card the user can never decrypt the single sign-on data because the key stored on the smart card and is not recoverable.

You should consider setting the Enable passphrase security system option to Yes when the Key generated on smart card option is used to provide an alternative mechanism for decrypting single sign-on data if the smart card is lost/stolen/damaged.

Using the enterprise CMS-based recovery system, the administrator must issue the user a replacement smart card based on a CMS backup of the user's original key. The replacement card includes the recovered private key and a new key pair so data can be decrypted using the old key and re-encrypted using the new key.