[KEYPROV] Issue#14: Shall we send authentication ID in a separate field or the same value in part of authentication value?

[Hannes Tschofenig <Hannes.Tschofenig at gmx.net>]

For issue#14: http://www.tschofenig.priv.at:8080/keyprov/issue14 Ming wrote: 


There are two proposals to send authentication code over HTTP:

	<AuthenticationData>
	  <ClientID>ID</ClientID>
         <AuthenticationCodeDigest>MIabcdefghidjklmn==
         </AuthenticationCodeDigest>
	</AuthenticationData>

where ID is carried by ClientID, or alternatively, concatenate ID into the 
AuthenticationCodeDigest with a newly introduced algorithm ID for the value 
derivation.

	<AuthenticationData>
         <AuthenticationCodeDigest>ID | MIabcdefghidjklmn==
         </AuthenticationCodeDigest>
	</AuthenticationData>

I prefer to use the former style.



Thoughts? 




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