Re: [Cfrg] [secdir] ISE seeks help with some crypto drafts
Tony Arcieri <bascule@gmail.com> Fri, 08 March 2019 20:34 UTC
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From: Tony Arcieri <bascule@gmail.com>
Date: Fri, 08 Mar 2019 12:33:53 -0800
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To: Stephen Farrell <stephen.farrell@cs.tcd.ie>
Cc: CFRG <cfrg@irtf.org>, "RFC ISE (Adrian Farrel)" <rfc-ise@rfc-editor.org>, secdir <secdir@ietf.org>
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Subject: Re: [Cfrg] [secdir] ISE seeks help with some crypto drafts
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On Fri, Mar 8, 2019 at 11:15 AM Stephen Farrell <stephen.farrell@cs.tcd.ie> wrote: > > FWIW, I'd prefer have fewer and not more modes of operation > documented. I'm not aware of a need for what this draft > appears to specify (based on reading just the abstract). I > also agree the OCB IPR situation isn't clear (IIRC more than > just Rogaway's IPR was involved). > Rogaway has a pretty detailed description of the IPR situation on the OCB site: http://web.cs.ucdavis.edu/~rogaway/ocb/ocb-back.htm — snip — Does Phil have a patent on OCB? Yes, I did file patent applications covering the new techniques used in OCB. There was a filing on 12 October 2000, and a filing on 9 February 2001. If you want to use OCB in a commercial product, you'll need to get a license from me. But I'll license this IP under fair, reasonable, and non-discriminatory terms. All companies will be offered the same license agreement. I expect licensees to pay a modest, one-time fee. Here is a patent-assurance letter <http://web.cs.ucdavis.edu/~rogaway/ocb/ieee.pdf> I wrote for the IEEE, which mandates OCB in a *draft*802.11 (Wireless LAN) standard, as part of the WEP ("Wired Equivalent Privacy") protocol. How much will a license cost? Not much. I intend that no solvent company should find licensing from me to be a significant issue in their cost of doing business. Here is an offer letter <http://web.cs.ucdavis.edu/~rogaway/ocb/offer.pdf> indicating how I am licensing OCB.Has OCB already been licensed? Yes, it has. But, unfortunately, I am not at liberty to say more.Will anyone else come to have a valid patent that covers OCB? Unfortunately, this question is impossible to answer at this point. IBM has indicated that it has a patent filing that covers Jutla's authenticated-encryption work. They indicate that this was filed on 14 April 2000. Gligor has indicated that he has three patent filings that cover his authenticated-encryption and parallelizable MAC work. He indicates that these were filed on 31 January 2000, 31 March 2000, and 24 August 2000. All of these filings were provisional patent filings. One can only conjecture who will have what enforceable rights. As for Jutla/IBM, I have been clear all along that OCB retains similarities to Jutla's IAPM. Intellectually, OCB owes much to Jutla's work. But whether or not IBM's patent covers OCB may depend on how broadly IBM's claims were crafted. As for Gligor/VDG, I am unaware of any idea from [Gligor, Donescu; 18 August 2000] that I used in OCB. I believe that any utility patent filed after Jutla's work and my work appeared but based on a provisional patent filed before Jutla's work and my work appeared will need to be examined with care, comparing the contents of the utility patent to the contents of the provisional patent, and paying attention to what was published in the interval. Such an exercise is currently impossible, because provisional patents are not made available before utility patents issue. I start to think that I have been too talkative and too concerned about what IP other parties could come to hold. In truth, nobody ever knows the answer to this question. -- Tony Arcieri
- Re: [Cfrg] dragonfly, was: Re: Time to recharter … Peter Gutmann
- Re: [Cfrg] dragonfly, was: Re: Time to recharter … Dan Harkins
- Re: [Cfrg] dragonfly, was: Re: Time to recharter … Andy Lutomirski
- [Cfrg] ISE seeks help with some crypto drafts RFC ISE (Adrian Farrel)
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Paul Wouters
- Re: [Cfrg] ISE seeks help with some crypto drafts Salz, Rich
- Re: [Cfrg] ISE seeks help with some crypto drafts David Wong
- Re: [Cfrg] ISE seeks help with some crypto drafts D. J. Bernstein
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Tony Arcieri
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Blumenthal, Uri - 0553 - MITLL
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Stephen Farrell
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Tony Arcieri
- Re: [Cfrg] ISE seeks help with some crypto drafts Dan Brown
- Re: [Cfrg] ISE seeks help with some crypto drafts John Mattsson
- Re: [Cfrg] ISE seeks help with some crypto drafts Tony Arcieri
- Re: [Cfrg] ISE seeks help with some crypto drafts Aaron Zauner
- Re: [Cfrg] ISE seeks help with some crypto drafts Aaron Zauner
- Re: [Cfrg] ISE seeks help with some crypto drafts Aaron Zauner
- Re: [Cfrg] ISE seeks help with some crypto drafts mcgrew
- Re: [Cfrg] ISE seeks help with some crypto drafts Aaron Zauner
- Re: [Cfrg] ISE seeks help with some crypto drafts Tony Arcieri
- Re: [Cfrg] ISE seeks help with some crypto drafts Ted Krovetz
- Re: [Cfrg] ISE seeks help with some crypto drafts Paul Hoffman
- Re: [Cfrg] ISE seeks help with some crypto drafts Tony Arcieri
- Re: [Cfrg] ISE seeks help with some crypto drafts Blumenthal, Uri - 0553 - MITLL
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Paul Wouters
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Watson Ladd
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Blumenthal, Uri - 0553 - MITLL
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Paul Wouters
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Paul Hoffman
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… S Moonesamy
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Benjamin Kaduk
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Uri Blumenthal
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Ted Krovetz
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Benjamin Kaduk
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Tony Arcieri
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Uri Blumenthal
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Stephen Farrell
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Blumenthal, Uri - 0553 - MITLL
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Tony Arcieri
- [Cfrg] Time to recharter CFRG as a working group?… StJohns, Michael
- Re: [Cfrg] Time to recharter CFRG as a working gr… Tony Arcieri
- Re: [Cfrg] Time to recharter CFRG as a working gr… Blumenthal, Uri - 0553 - MITLL
- Re: [Cfrg] ISE seeks help with some crypto drafts Peter Gutmann
- Re: [Cfrg] ISE seeks help with some crypto drafts Salz, Rich
- Re: [Cfrg] ISE seeks help with some crypto drafts Salz, Rich
- Re: [Cfrg] Time to recharter CFRG as a working gr… John Mattsson
- Re: [Cfrg] [secdir] ISE seeks help with some cryp… Valery Smyslov
- Re: [Cfrg] Time to recharter CFRG as a working gr… Mathy Vanhoef
- Re: [Cfrg] dragonfly, was: Re: Time to recharter … Peter Gutmann
- Re: [Cfrg] Time to recharter CFRG as a working gr… Michael StJohns
- Re: [Cfrg] Time to recharter CFRG as a working gr… Richard Barnes
- Re: [Cfrg] Time to recharter CFRG as a working gr… Salz, Rich
- Re: [Cfrg] Time to recharter CFRG as a working gr… Stephen Farrell
- Re: [Cfrg] Time to recharter CFRG as a working gr… Michael StJohns
- Re: [Cfrg] Time to recharter CFRG as a working gr… denis bider
- Re: [Cfrg] Time to recharter CFRG as a working gr… Blumenthal, Uri - 0553 - MITLL
- Re: [Cfrg] Time to recharter CFRG as a working gr… Richard Barnes
- Re: [Cfrg] Time to recharter CFRG as a working gr… Daniel Kahn Gillmor
- Re: [Cfrg] Time to recharter CFRG as a working gr… Michael StJohns
- Re: [Cfrg] Time to recharter CFRG as a working gr… Paterson Kenneth
- Re: [Cfrg] [secdir] Time to recharter CFRG as a w… Paul Wouters
- Re: [Cfrg] [secdir] Time to recharter CFRG as a w… Uri Blumenthal
- Re: [Cfrg] [secdir] Time to recharter CFRG as a w… Tony Arcieri
- Re: [Cfrg] [secdir] Time to recharter CFRG as a w… Tony Arcieri
- Re: [Cfrg] [secdir] Time to recharter CFRG as a w… Paterson Kenneth
- Re: [Cfrg] [secdir] Time to recharter CFRG as a w… denis bider
- Re: [Cfrg] [secdir] Time to recharter CFRG as a w… Watson Ladd
- Re: [Cfrg] [secdir] Time to recharter CFRG as a w… Melinda Shore
- Re: [Cfrg] [secdir] Time to recharter CFRG as a w… Uri Blumenthal
- Re: [Cfrg] [secdir] Time to recharter CFRG as a w… denis bider
- Re: [Cfrg] [secdir] Time to recharter CFRG as a w… Martin Thomson
- Re: [Cfrg] [secdir] Time to recharter CFRG as a w… Peter Gutmann
- Re: [Cfrg] [secdir] Time to recharter CFRG as a w… Melinda Shore
- Re: [Cfrg] Time to recharter CFRG as a working gr… mcgrew
- Re: [Cfrg] [secdir] Time to recharter CFRG as a w… Donald Eastlake
- Re: [Cfrg] Time to recharter CFRG as a working gr… Michael StJohns
- Re: [Cfrg] Time to recharter CFRG as a working gr… mcgrew
- Re: [Cfrg] Time to recharter CFRG as a working gr… StJohns, Michael
- Re: [Cfrg] Time to recharter CFRG as a working gr… Stephen Farrell
- Re: [Cfrg] Time to recharter CFRG as a working gr… Martin Thomson
- [Cfrg] dragonfly, was: Re: Time to recharter CFRG… Dan Harkins
- Re: [Cfrg] dragonfly, was: Re: Time to recharter … Tony Arcieri
- Re: [Cfrg] dragonfly, was: Re: Time to recharter … Björn Haase
- Re: [Cfrg] ISE seeks help with some crypto drafts Eric Rescorla
- Re: [Cfrg] ISE seeks help with some crypto drafts Blumenthal, Uri - 0553 - MITLL
- Re: [Cfrg] ISE seeks help with some crypto drafts Blumenthal, Uri - 0553 - MITLL
- Re: [Cfrg] ISE seeks help with some crypto drafts Eric Rescorla
- Re: [Cfrg] ISE seeks help with some crypto drafts mcgrew
- Re: [Cfrg] ISE seeks help with some crypto drafts Blumenthal, Uri - 0553 - MITLL
- Re: [Cfrg] ISE seeks help with some crypto drafts mcgrew
- Re: [Cfrg] ISE seeks help with some crypto drafts Ted Krovetz
- Re: [Cfrg] ISE seeks help with some crypto drafts Benjamin Kaduk