Common Authentication Service Adapter (CASA)
1.0 Overview
2.0 Documentation
3.0 Known Issues
4.0 Legal Notices
1.0 Overview
Common Authentication Service Adapter (CASA) provides
a common infrastructure for client authentication
across the Linux* and Microsoft* Windows* desktops.
Novell products (such as GroupWise, GroupWise
Messenger, iPrint, Novell iFolder, and the Novell
clients for Windows and Linux) are integrated with the
miCASA interface and can take advantage of the
credential store that provides the cornerstone for
CASA.
The main components of CASA on Linux are:
- CASA Identity Development Kit (IDK): The IDK
provides a set of APIs that application and service
developers can use to write user/application
credentials to the credential store. The IDK APIs
internally store the credentials passed onto them
by the applications in miCASAd. There are C, C++,
C# and Java bindings available for the CASA IDK.
- miCASAd: An active component that starts during
boot time. On Linux, miCASAd is available in the
run-levels 1, 2, 3 and 5. It runs with root
privileges and is active as long as the system is
up. It stores and provides credentials or secrets
based on the Linux user identifier (uid) of the
process that makes the IDK API calls. The
credentials, which are stored by applications in
miCASAd, are maintained only in memory for the
first release. Session-based secrets implies
secrets that are stored in an in-memory cache, are
available only as long as the user is in session on
the desktop, and are destroyed when miCASA daemon
is restarted or the user logs off.
Any PAM module that uses the IDK APIs must set its
effective user id temporarily to that of the user
logging in (the user returned by calling
pam_get_user()), if the credentials need to be
stored against that user. There might be cases
where the user obtained through pam_get_user()
might not be the one against whom the PAM module
actually intends to store credentials.
- Login Credential Capture Module: On Linux, the
login credential capture module is implemented as a
PAM module. This PAM module captures the user's
desktop login credentials and stores them in
miCASAd using the IDK APIs. This PAM module is
placed as the last module in the auth and session
stacks of xdm, gdm, kdm, login and sshd PAM
configuration files. In the auth stack, the
functionality of this module is to store the
credentials in miCASAd and in the session
stack, then closes the user's session with miCASAd.
2.0 Documentation
To read or print the documentation, you need Adobe
Acrobat Reader 4.0
(http://www.adobe.com/prodindex/acrobat/readstep.html)
.
The document in this download was created as a
standalone file; therefore, links to files in other
downloads will not resolve.
The download includes a single file: casa_enu.pdf in
the [install directory]\NDK\doc\casa directory.
3.0 Known issues
- Secrets with IDs using reserved characters may fail.
These will be fixed in a future release. Reserved
characters are
:
\
4.0 Legal Notices
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