[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Where should port rights go?

From: Niklas Höglund
Subject: Re: Where should port rights go?
Date: 25 Nov 2000 21:05:10 +0100
User-agent: Gnus/5.0807 (Gnus v5.8.7) XEmacs/21.1 (Channel Islands)

> > Many ways to implement port rights come to mind. Here are some ideas:
> <snip>
> 9. port-rights entirely managed by concerned parties:
>    * every communicating party is uniquely identified by its
>      sender-id/receiver-id. This information is provided by
>      the kernel/libmom and is considered trusted.
> [...]
>    - slight chance of forgeability by clients that poll every random-id
>      from a server (guessing id's).

If you check (and trust) the sender ID of a message, how can an
untrusted client (whos sender ID doesn't match any trusted ones) to
find a way in?  Is it possible (in L4) to forge the sender ID in a


reply via email to

[Prev in Thread] Current Thread [Next in Thread]