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Subject: Issue PR012: Need policy example for encrypted username token

Issue PR012


From: Symon Chang [mailto:sychang@bea.com]
Sent: Wednesday, January 24, 2007 11:17 AM
To: ws-sx@lists.oasis-open.org
Cc: Marc Goodner; Hal Lockhart
Subject: [ws-sx] NEW Issue: Need policy example for encrypted username token


The issues coordinators will notify the list when that has occurred.
Protocol:  ws-sp 
Artifact:  examples
Type: design
Title: Need policy example for encrypted username token
One the examples document, we have insecure example of Username Token policy, but no simple encrypt password policy on Username token. This is a must-to-have scenario to be shown in the example document. 

On the Security Policy Examples document, there is an example of unencrypted plain text Username Token policy on, but there is no example for encrypted plain text Username Token policy.


Sending unencrypted password text, as showed on, is not a secure way to handle the Username Token. The example should not be advertised as the only way to handle plain text password.


We do have an encrypted plain text password policy on section 2.1.3 -- “(WSS 1.0) UsernameToken with Mutual X.509v3 Authentication, Sign, Encrypt”. However, this example requires signature. It is more complicated.


Encrypted support token without signature is a very common use case. It is documented on the first WS-Security Interop Scenarios Document [WSS10-INTEROP-01 Scenario 1 – section 4.4.4] (http://www.oasis-open.org/committees/download.php/11374/wss-interop1-draft-06-merged-changes.pdf ).  


This is a real requirement for this use case scenario in the field, too. If a client does not have its own private key then the Username Token is the only way for authentication. If the server cannot accept digested password, then encrypted password is the only way to secure authentication. The client does not have key for signature, SignedEncryptedSupportingTokens assertion is not an alternative in this scenario.

Related issues:
EncryptedSupportingTokens assertion.
Proposed Resolution:

We should provide a simple policy example for sending encrypted password over the SOAP message, and make a comment on the example of section is not a secure way.


Just like the WSS 1.0 Interop scenario document, a more secure example of handle Username Token should be followed after section 


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