[krbdev.mit.edu #6118] rename principals

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To: krb5-bugs at mit.edu
Subject: rename principals
From: mdw at umich.edu
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>Submitter-Id:	net
>Originator:	 mdw at umich.edu
>Organization:
	University of Michigan
>Confidential:	no
>Synopsis:	rename principals
>Severity:	non-critical
>Priority:	low
>Category:	krb5-admin
>Class:		change-request
>Release:	1.6.3
>Environment:
	dell pe1750 running umce linux, krb5 1.6.3+patches
System: Linux strawdogs.ifs.umich.edu 2.6.23.1 #3 SMP Tue Oct 23 11:37:43 EDT 2007 i686 GNU/Linux

Architecture: i686

>Description:
	In mit k5 kerberos, there is a rename rpc that was
	never finished.  Here is a patch that adds the
	missing pieces.  The interesting trick is converting
	realm dependent salt to special salt.
>How-To-Repeat:
	Run kadmin.  Try, just try to rename a principal
	while preserving the password that you don't know.
>Fix:
	Workaround: require users go through a password reset
	process after changing their login.
	Compile-time fix, apply the patch in
	/afs/umich.edu/group/itd/build/mdw/krb5.15x/patches/krb5-1.6.3-rename.patch