default encryption types

[Markus Moeller]

BTW. The MIT kdc is 1.2.x with no rc4 support.
Markus

"Markus Moeller" <huaraz at moeller.plus.com> wrote in message 
news:200504221731.j3MHVDIQ013950 at pacific-carrier-annex.mit.edu...
>
> I do have a setup with two kdcs ( A windows and non-windows kdc ). I'd 
> like to
> use the highest encryption type  available. The krb5.conf on my client 
> looks like:
>
> [libdefaults]
>    default_realm = W2K3.COM
>    default_tkt_enctypes = des3-cbc-sha1 rc4-hmac des-cbc-md5 des-cbc-crc
>    default_tgs_enctypes = des3-cbc-sha1 rc4-hmac des-cbc-md5 des-cbc-crc
>
> [realms]
>    W2K3.COM = {
>        kdc = kdc.w2k3.com:88
>        kpasswd_server = kdc.w2k3.com:464
>    }
>    MIT.COM = {
>        kdc = kdc.mit.com:88
>        kpasswd_server = kdc.mit.com:464
>    }
> [domain_realm]
>    .mit.com = MIT.COM
>    .w2k3.com = W2K3.COM
>
>
> A kinit user at W2K3.COM gives the following error:
> kinit(v5): KDC has no support for encryption type while getting initial 
> credentials
>
> It works the other way round e.g.
>   default_tkt_enctypes = rc4-hmac des3-cbc-sha1 des-cbc-md5 des-cbc-crc
>   default_tgs_enctypes = rc4-hmac des3-cbc-sha1 des-cbc-md5 des-cbc-crc
>
>
> kinit user at MIT.COM gives no error and I get a tgt.
>
>
> I know that MS doesn't support 3DES, but I thought if I give a list it 
> will use
> the next highest supported encryption type. Is this a buf in MS or does 
> the
> standard allow this behaviour ?
>
>
> Thanks
> Markus
>
>
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