As a Free/Libre Open Source Software advocate I oppose publication of draft-housley-tls-authz-extns as a proposed standard. The patent application disclosed by RedPhone Security has put any free software attempting to implement these extensions in a very difficult position. Free software developers cannot safely code to the specifications without risking infringement on RedPhone's patents. As a result of these concerns and the uncertain situation they create, I learned that GnuTLS has removed support for them in its latest release -- and no other software maintained by the GNU Project will be written to them. I know that the IETF and IESG largely share the view that patent-encumbered standards are unacceptable. Please do not allow this decision to be negated by making it as a proposed standard. Sincerely, Joseph R. Gulizia Free/Libre Open Source Software advocate Council Bluffs, IA (USA) _______________________________________________ Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf