[Fwd: I-D ACTION:draft-royer-calsch-dynamic-upn-02.txt]

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	Title		: How to create dynamic UPNs for invited ATTENDEEs
	Author(s)	: D. Royer
	Filename	: draft-royer-calsch-dynamic-upn-02.txt
	Pages		: 12
	Date		: 2003-10-2
	
This is an extension to the [CAP] protocol and can be used within
[iTIP] objects. A CU may wish to invite a UPN to an event where the
UPN does not have a account on the CU's CS. This memo describes two
methods to dynamically create UPNs in order for those UPNs to gain
access to the 'Organizers' CS.
This memo also includes a description of how to include an [OTP]
challenge in an object directed to a CU. The CUA must compute the
password in order to respond to the object. This challenge and its
response can be sent in the clear as the values are computed using a
secret that would not be known to anyone snooping the line.

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