Dear Madam/Sir, I am concerned by the current IETF consideration of approving the TLS-authz as a standard. TLS-authz is encumbered by a patent as claimed by RedPhone Security. RedPhone has given a license to anyone who implements the protocol, but they still threaten to sue anyone that uses it. Please do not approve this standard on any level unless the patent threat is removed entirely with a royalty-free license for all users. Sincerely, Jordi Burguet-Castell _______________________________________________ Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf