Can't validate, but can sanitize.

EH

From: oauth-boun...@ietf.org [mailto:oauth-boun...@ietf.org] On Behalf Of 
Andrew Arnott
Sent: Sunday, February 19, 2012 7:36 AM
To: OAuth WG (oauth@ietf.org)
Subject: [OAUTH-WG] How an AS can validate the state parameter?

>From section 10.14: (draft 23)
The Authorization server and client MUST validate and sanitize any value 
received, and in particular, the value of the state and redirect_uri parameters.

Elsewhere in the spec the AS is instructed to exactly preserve the state and to 
consider it an opaque value.  How then, can an AS validate and sanitize the 
state parameter?

--
Andrew Arnott
"I [may] not agree with what you have to say, but I'll defend to the death your 
right to say it." - S. G. Tallentyre
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