Re: temporarily granting a TGT for a client coming in with a 3rd party authn system

2017-11-25 Thread Chris Hecker
Okay, I think I have a handle on this...a few responses and then a few questions: simo and greg: > but a TGT would allow this client to access any kerberized service. > Yeah, I realized this, and then I realized that for my use case even a full key instead of a ticket would be okay to send, bec

Re: temporarily granting a TGT for a client coming in with a 3rd party authn system

2017-11-25 Thread Chris Hecker
Oh, and to actually send the key back, I assume I can just pack up the keyblock and send that encrypted with mk_priv, there's no mk_1cred equivalent for sending a key it seems? Thanks, Chris On Sat, Nov 25, 2017 at 4:23 PM, Chris Hecker wrote: > > Okay, I think I have a handle on this...a few

Re: temporarily granting a TGT for a client coming in with a 3rd party authn system

2017-11-21 Thread Charles Hedrick
Another approach is kind of iffy from a security point of view, but I have a situation where it’s needed. We have code that will generate any credentials for which it has a keytab, including a TGT. (It’s an MIT person of kimpersonate.) You can transmit it to the other end using krb5_fwd_tgt_cred

Re: temporarily granting a TGT for a client coming in with a 3rd party authn system

2017-11-17 Thread Simo Sorce
On Fri, 2017-11-17 at 15:49 -0500, Simo Sorce wrote: > On Fri, 2017-11-17 at 16:20 +, Chris Hecker wrote: > > (Once more, with feeling...and also hopefully acceptable-to-mailman > > formatting.) > > > > This is all kind of half-baked, so bear with me while I think out-loud: > > > > - I am usi

Re: temporarily granting a TGT for a client coming in with a 3rd party authn system

2017-11-17 Thread Simo Sorce
On Fri, 2017-11-17 at 16:20 +, Chris Hecker wrote: > (Once more, with feeling...and also hopefully acceptable-to-mailman > formatting.) > > This is all kind of half-baked, so bear with me while I think out-loud: > > - I am using kerberos for my game's authn with clients and a server. > Client

Re: temporarily granting a TGT for a client coming in with a 3rd party authn system

2017-11-17 Thread Greg Hudson
On 11/17/2017 11:20 AM, Chris Hecker wrote: > - I don't want to give them the key to their krb account because I don't > want them to be able to log into any of my other kerberized services, so I > think I'd like to request a TGT for them on the server and then send it to > the client. This way the