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Re: [lamps] Hybrid pkix isn't needed

Watson Ladd <watsonbladd@gmail.com> Mon, 30 January 2023 19:20 UTC

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From: Watson Ladd <watsonbladd@gmail.com>
Date: Mon, 30 Jan 2023 11:20:13 -0800
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To: Seo Suchan <tjtncks@gmail.com>
Cc: spasm@ietf.org
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Subject: Re: [lamps] Hybrid pkix isn't needed
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On Mon, Jan 30, 2023 at 10:57 AM Seo Suchan <tjtncks@gmail.com> wrote:
>
> Think there are two kinds of fail mode hybrid cert try to guard against:
> Quantum computer came out breaking classical asymmetrical crypto, or PQ
> algorithm we chooses was not that great and it broken down by new
> classical attack

Hash based schemes are secure if any signature scheme is secure. Even
if we want to hybridize, having hybrid keys in certs seems a lot
simpler to me than tying multiple certs through complex mechanisms.

Sincerely,
Watson Ladd


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