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Dear Sir's I am writing to oppose approval of the patent encumbered authz extension of the TLS authorization protocol as submitted by Mark Brown of "RedPhone Security" and Russell Housley of "Vigil Security LLC", and published in: http://tools.ietf.org/wg/tls/draft-housley-tls-authz-extns-07.txt I have been alerted to the fact that "RedPhone Security" has applied for a patent which would need to be licensed to anyone wanting to implement and -- more importantly -- practice the standard. It is obvious in my mind that this should be by definition unacceptable in an Internet standard, regardless of whether it is proposed as "optional", or as a "proprietary extension". If it is proprietary -- a necessary fact for supporting a patent claim, it can remain in the domain where it originated; there is absolutely no basis for it becoming an Internet standard. In my mind, when the Internet Engineering Task Force (IETF) and the Internet Engineering Steering Group (IESG) evaluate new proposals for standards, they should first and foremost make sure that they are not encumbered by patents or any other sort of restriction that would prevent their use by free software users and programmers. This is not the case with this proposed standard, and I call upon you to not approve it on any level unless the patent threat is removed entirely with a royalty-free license for all users Sincerely, Dimitrios P. Bouras --
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