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[pkix] RFC8410 / RFC8037 incompatibility

Anders Rundgren <anders.rundgren.net@gmail.com> Fri, 28 August 2020 15:00 UTC

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From: Anders Rundgren <anders.rundgren.net@gmail.com>
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Subject: [pkix] RFC8410 / RFC8037 incompatibility
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Hi Crypto Experts,

Please pardon my ignorance regarding curve25519, but I ran into problems [*] trying to recreate the sample certificate:
https://tools.ietf.org/html/rfc8410#section-10.2

Reading
https://tools.ietf.org/html/rfc8037#section-3.2
indicates that signing using an ECDH key MUST NOT be doable as well.

Personally I don't see any use of a self-signed encryption certificate so maybe this is just a bad example...kind of edge case.

Regards,
Anders

*] java.security.InvalidKeyException: cannot identify EdDSA private key

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