Re: [CFRG] Please review draft-ietf-drip-rid

"Blumenthal, Uri - 0553 - MITLL" <uri@ll.mit.edu> Fri, 17 September 2021 14:33 UTC

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From: "Blumenthal, Uri - 0553 - MITLL" <uri@ll.mit.edu>
To: Watson Ladd <watsonbladd@gmail.com>
CC: Robert Moskowitz <rgm-sec@htt-consult.com>, "<cfrg@ietf.org>" <cfrg@ietf.org>
Thread-Topic: [CFRG] Please review draft-ietf-drip-rid
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Date: Fri, 17 Sep 2021 14:33:30 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/cfrg/bCXhtfcblCc-CrF5efj7fyYGoJw>
Subject: Re: [CFRG] Please review draft-ietf-drip-rid
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On 9/17/21, 10:25, "Watson Ladd" <watsonbladd@gmail.com> wrote:

    On Fri, Sep 17, 2021 at 7:21 AM Blumenthal, Uri - 0553 - MITLL
    <uri@ll.mit.edu> wrote:
    >>
    >> I have not read the draft, but my answer to Watson is - because
    >> there is not enough room for Post-Quantum certificates, and Ed25519
    >> is not an acceptable alternative for some of us.
    >
    > ECDSA takes the same place,

And, unfortunately, is equally unacceptable.

    > and unless I'm missing something this scheme isn't post-quantum either.
    > In fact, this proposal can only use d25519 unless I'm misreading it.

If that's true - my comment/answer does not apply.

Thanks!