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Re: [netconf] crypto-types fallback strategy

"Salz, Rich" <rsalz@akamai.com> Tue, 17 September 2019 17:07 UTC

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From: "Salz, Rich" <rsalz@akamai.com>
To: "Rob Wilton (rwilton)" <rwilton@cisco.com>, Kent Watsen <kent+ietf@watsen.net>
CC: Russ Housley <housley@vigilsec.com>, "netconf@ietf.org" <netconf@ietf.org>, Sean Turner <sean@sn3rd.com>, Rifaat Shekh-Yusef <rifaat.ietf@gmail.com>
Thread-Topic: [netconf] crypto-types fallback strategy
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Date: Tue, 17 Sep 2019 17:07:04 +0000
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Subject: Re: [netconf] crypto-types fallback strategy
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I do not think using algorithms as the base classes is a good idea.  I think it is much better to have the type of key material as the base class:
                asymmetric-key (RSA, ECC, etc)
                symmetric-key (AES 3DES etc)
                byte string (maybe…)
nonce (non-reused stream of bits used in AES-GCM, EdDSA signature, EDDSA signatures, etc)
                tag (used in KDF functions, almost always a text string)

The *use* of the identities should be implied by the operation.

I like the idea of partitioning by “here is what you need to configure a typical HTTPS server” in one document and “here is what you need to configure a typical SSH server”

Does that answer your question?

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