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Re: architecture and security




From: "Kent Watsen" <kwatsen@juniper.net>
To: "Andy Bierman" <ietf@andybierman.com>
Cc: "Netconf (E-mail)" <netconf@ops.ietf.org>
Sent: Thursday, April 06, 2006 8:45 PM
Subject: RE: architecture and security
...
1. When the subscription-request comes in, the system must authenticate
that the request only subscribes to events the client is authorized to
receive

2. However, when each notification is generated by the system, the
system only forwards it to the client if it already has a subscription
in place for that kind of event

In case you think that I'm contradicting my earlier statement
"eliminates the system from having to apply filters to the responses",
what I meant to say is that it eliminates *access control* from having
to apply filters to the responses.  This is true since any notification
matching the subscription request, which was authorized, is also
implicitly authorized to be sent to the client
...


Does this mean that access rights are only checked at subscription ?
What happens if the user successfully subscribes to all notifications
then later his access rights are restricted.
Shall we check at the change of access rights
whether his subscription is still OK and remove it if no ?
Otherwise his rights might be removed and he still receives notifications
as long as he himself does not change his subscription. This latter
case is I feel not satisfactory.
Balazs

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