Hi Eran,
in my perception, there is some support on the list for having a request
to revoke refresh tokens. Will you add such a request to the
specification? Do you need a text proposal?
regards,
Torsten.
IMHO this would look more like a hack than proper protocol design. We need
a delete/revoke operation that's the pendant to the other token operations (i.e.
crud ops).
Hubert
On Fri, May 21, 2010 at 7:05 PM, Beau Lebens<[email protected]> wrote:
Could this just be implemented through support for a scope change
where scope=none or revoke or something?
On Friday, May 21, 2010, Lukas Rosenstock<[email protected]> wrote:
Why not simply add this functionality to the token endpoint?The same place that
was used to fetch the access token first or refresh it could be used to revoke
the same token with another request. The only requirement would be to define
something like type=revoke.
I feel that is much easier than making the token a URL which supports DELETE.
However, any mechanism will break implementations that rely on minimal or no
communication between authorization server and protected resource, because all
protected resources have to be informed.
Regards, Lukas
2010/5/16 Dick Hardt<[email protected]>
James: An important capability of the refresh token is that it *can* be a self
contained token in that is not an id, but a signed token that can be examined
and acted upon on presentation.
Torsten: enabling a client to revoke a refresh token looks like a useful
mechanism. I anticipate it will be viewed as a vitamin feature rather than a
painkiller and will fall by the wayside unless the security conscience rally to
have it included.
-- Dick
On Thu, May 13, 2010 at 7:10 AM, Manger, James
H<[email protected]> wrote:
Torsten,
What about refresh token revocation/deletion?
HTTP already has a method to do this: DELETE
It just needs each token to have a URI.
Tokens (almost) already have URIs -- its just not immediately obvious because
the URI has to be built from a common token endpoint and a refresh_token.
I think it would improve the spec if refresh_token was renamed to, say,
token_id; and its value defined as a URI (which can be a relative URI so the
string may not need to change at all).
To refresh a token you POST to the token's URI.
To delete a token you send a DELETE request to the token's URI.
It doesn't cause major changes, but there are some benefits.
It is a more web-style design.
It leaves only 1 type of token in the spec -- an access token -- which
simplifies the text and aids understanding.
There are no arguments about length, allowed chars etc because it is a URI -- a
well-known type, often with native support.
Its obvious how to delete the token as there is a standard HTTP method DELETE
to apply to the token URI.
If a particular service supported an additional way to delete items in its API
(eg POST with a method=delete query parameter) that could apply to the OAuth
part as well.
--
James Manger
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--
http://lukasrosenstock.net/
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