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<div dir="ltr"><font size="2">FYI</font><div><font size="2"><br></font></div><div><font size="2">OCB is a faster mode for AES than GCM (the current MTI in TLS/1.3). Do read the linked</font></div><div><font size="2">post about how Phil Rogaway intentionally abandoning the OCB patents.</font></div><div><font size="2"><br></font></div><div><div><div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">---------- Forwarded message ---------<br>From: <b class="gmail_sendername" dir="auto">Salz, Rich</b> <span dir="auto"><rsalz=<a href="mailto:40akamai.com@dmarc.ietf.org">40akamai.com@dmarc.ietf.org</a>></span><br>Date: Fri, Feb 26, 2021 at 11:31 AM<br>Subject: [CFRG] OCB patents are abandoned; freely usable<br>To: <a href="mailto:cfrg@ietf.org">cfrg@ietf.org</a> <<a href="mailto:cfrg@ietf.org">cfrg@ietf.org</a>><br></div><br><br>
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<p class="m_2691007916442594706MsoPlainText">Quoting from a posting to the cryptography mailing list, <a href="https://www.metzdowd.com/pipermail/cryptography/2021-February/036762.html" target="_blank">
https://www.metzdowd.com/pipermail/cryptography/2021-February/036762.html</a> :<u></u><u></u></p>
<p class="m_2691007916442594706MsoPlainText"><u></u> <u></u></p>
<p class="m_2691007916442594706MsoPlainText">On 2/16/21, 9:19 PM, "Jon Callas" <<a href="mailto:jon@callas.org" target="_blank">jon@callas.org</a>> wrote:<u></u><u></u></p>
<p class="m_2691007916442594706MsoPlainText">. . .<u></u><u></u></p>
<p class="m_2691007916442594706MsoPlainText"> The deal, which is publicly verifiable from the PTO, is that he stopped paying the PTO upkeep fee, and so the patents are all now abandoned. I wrote him because I went to the PTO to check on expiry dates and saw that and thought
"huh?" about it. He verified that it was intentional as a way to put the matter to bed without license games.<u></u><u></u></p>
<p class="m_2691007916442594706MsoPlainText">. . .<span style="color:black"><u></u><u></u></span></p>
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