[comp.protocols.kerberos] kerberos and ISO protocol standards

rhc@HPLB.HPL.HP.COM (Robert Cole) (12/11/89)

> There has been a fair number of messages on the kerberos mailing-list that 
> suggest using kerberos with ISO standards.  The following is an example.
> Would anyone on the ISO discussion list care to comment on this concept?
> Please also copy your comments to kerberos@athena.mit.edu.

> Dan Nessett

Dan,
Work in SC21/WG1 on security is attempting to put into place a
framework for security in OSI applications which can be used by all
applications (FTAM, MHS, Directory, etc). This is intended to avoid
each application doing their own ad-hoc solutions based (usually) on a
password. One part of this framework is a document on authentication,
and another on access control.

The access control framework contains a concept very similar to the
Kerberos ticket, but is a generalised. The Frameworks are no where
near complete, and of course they do not contain any key management.

In ECMA TC32/TG9 (Security in Open Systems) a standard authentication
and security attribute service is being developed. This standard is
intended to meet all of the functionality of kerberos, as far as
possible. Where possible the architecture is similar to Kerberos.
This group has just completed a standard called "Security in Open
Systems - Data Elements and Services" which describes a whole set of
security services needed in an open system, and the security data that
is required to communicate between these services.
The model in this standard is not very different from that used for
Kerberos.

Several things happen when a function is standardised:
1. The various processes have to be separated, key management, security
data management, authentication exchanges, ticket support, etc.
2. General cases are considered and attempts made to incorporate them.
3. Implementation separated from design.
4. many others.

Thus it is not possible to 'standardise' kerberos, nor really possible
to specify its use in a standard. But it is possible to contribute to
the standards activities in the area and to ensure that the resulting
standards meet the requirements which Kerberos was designed for.

Robert
(Member of ECMA TC32/TG9)

karl@ASYLUM.SF.CA.US (Karl Auerbach) (12/14/89)

> Thus it is not possible to 'standardise' kerberos, nor really possible
> to specify its use in a standard.

???? Has the "standards" process reached the point where existing work
is not elegible?  Rather a "standard" must be new?  Is somebody
suffering from not-invented-here syndrome?

					--karl--