[2744] in Kerberos

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Re: Cannot decode Authenticator

daemon@ATHENA.MIT.EDU (Jonathan Chinitz)
Tue Jul 13 12:23:27 1993

To: uunet!watson.ibm.com!gopalan@uunet.UU.NET (Anis Gopalani)
Cc: kerberos@Athena.MIT.EDU, jec@isoft.com
In-Reply-To: <9307131208.AA32715@idot.watson.ibm.com> 
Date: Tue, 13 Jul 93 10:50:41 -0400
From: Jonathan Chinitz <jec@isoft.com>

On Tue, 13 Jul 1993 08:08:05 -0400  uunet!watson.ibm.com!gopalan wrote:

>  
>  I am writing a sample client-server application that uses kerberos V4.  It s
eemsthat the server receives authentication but cannot decode successully.  If 
I remove /etc/srvtab, I get the message "Can't decode authenticator (krb_rd_req
)  Thestatus of the return code is 31.  If I put it back as it should be I get 
a core dump.  Any idea?

Have you verified that the server password in the KDC is the same as
the one in your srvtab? I have experienced "Cannot decode
authenticator" errors when I have changed one, but forgot to do an
ext_srvtab. When the server tries to learn the session key from the
ticket, using the srvtab password, it fails (because they are
different) and thus fails to decrypt the authenticator.

-Jonathan

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