Do you know how QKD systems work? And do you know security?
Protection against MITMs, which is essential for privacy, do rely on classical (non-quantum) cryptography. (Most statement from QKD vendors and user are almost comically incorrect. That said, I think Brassard deserves the Turing prize, QKD was a major discovery, and Brassard is a very nice, humble, and well informed guy. I had a long private discussion with him). Cheers, John Preuß Mattsson From: Yaakov Stein <[email protected]> Date: Monday, 23 March 2026 at 17:33 To: John Mattsson <[email protected]>, Salz, Rich <[email protected]>, Andrei Popov <[email protected]> Cc: [email protected] <[email protected]> Subject: RE: [TLS] LS on the work item related to QKD and TLS integration framework in SG13 No, protection against MITMs is based purely on classical (non-quantum) cryptography. Do you know how QKD works? Its detection of eavesdroppers is based on the “no cloning” theorem, which is definitely not classical. Y(J)S This message is intended only for the designated recipient(s). It may contain confidential or proprietary information. If you are not the designated recipient, you may not review, copy or distribute this message. If you have mistakenly received this message, please notify the sender by a reply e-mail and delete this message. Thank you.
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