[1788] in Kerberos

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Re: Kerberos Question

daemon@ATHENA.MIT.EDU (John Carr)
Sun Mar 1 14:22:07 1992

To: cherokee@gators.b11.ingr.com
Cc: kerberos@Athena.MIT.EDU, info-kerberos@Athena.MIT.EDU
In-Reply-To: Your message of "Wed, 26 Feb 92 12:32:19 CST."
Date: Sun, 01 Mar 92 11:44:14 EST
From: John Carr <jfc@Athena.MIT.EDU>


The Kerberos 4 and Kerberos 5 protocols are incompatible.  The MIT
Kerberos 5 distribution contains some compatibility code:

	There is a library which converts Kerberos 4 library calls into
	Kerberos 5 requests, so you can run many V4 programs in a V5
	environment by relinking.

	The Kerberos server can optionally service V4 requests.

	There is a program to convert a V4 format Kerberos database to
	a V5 format database.

The names used by the V5 library have a prefix "krb5_" so they do not
conflict with the V4 library.


>	Another topic I am interested in is the bugs DCE has released
>to you concerning Kerberos. I am also interested in the extensiveness
>of the changes and problems they made.

There have been reports of security problems in the Kerberos 5 implementation
and bugs in the Kerberos 5 protocol.  We are working on fixing these.  As a
result, we recommend that people consider the Kerberos 5 beta test release to
be experimental software.  When we have a version of Kerberos that we feel is
stable and can be trusted in a secure environment we will say so.


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