Ticket renewal involves a TGS exchange, which means you need a valid TGT in the first place, which means that renewable service tickets provide not much benefit over non-renewable service tickets.
In other words, a renewable service ticket cannot be renewed without a valid TGT to authenticate the user principal to the KDC, but if you have a valid TGT you might as well request a new service ticket rather than a renewed service ticket. Cheers, Nico On Sat, Jan 05, 2002 at 01:49:50AM -0800, Kent Tong wrote: > Dear all, > > Why renewing a short-lived ticket is better than getting a > new short-lived ticket to replace the existing short-lived > ticket that is going to expire? > > I understand that if the existing ticket is a TGT, renewing > it is easier because it can be done using the session key > in the TGT while getting a new TGT would require the user's > secret key. But for a service ticket, I don't see why renewing > it is any better than getting a new one. > > Any idea would be greatly appreciated! -- -DISCLAIMER: an automatically appended disclaimer may follow. By posting- -to a public e-mail mailing list I hereby grant permission to distribute- -and copy this message.- Visit our website at http://www.ubswarburg.com This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. This message is provided for informational purposes and should not be construed as a solicitation or offer to buy or sell any securities or related financial instruments.
