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Re: [Curdle] Key examples in draft-ietf-curdle-pkix-03

Russ Housley <housley@vigilsec.com> Thu, 15 December 2016 15:53 UTC

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From: Russ Housley <housley@vigilsec.com>
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Subject: Re: [Curdle] Key examples in draft-ietf-curdle-pkix-03
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>> Additionally, it is somewhat strange that the same document
> (draft-irtf-cfrg-eddsa-08) would define that the public key requires no
> additional OCTET STRING wrapping, while the private key does. I
> personally don't have a problem implementing it this way if that is what
> the WG decides, but one of the two documents needs to be updated
> regardless of whether or not this is changed (either to change it or to
> clarify the encoding).
>  
> Even if it stays as-is, I do not think draft-irtf-cfrg-eddsa should be changed to mention the OCTET STRING wrapping. EdDSA public and private keys are encoded as specified by draft-irtf-cfrg-eddsa-08. If you just need to store one of those, you use it. Neither use ASN.1 at that layer since there's no need. Serialization asks for a byte string, and we already have a way to return a byte string.

I do not see any OCTET STRING wrapping in the test vectors in section 7 of draft-irtf-cfrg-eddsa-08.

Russ

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