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Re: [TLS] TLS 1.3 certificate delegation?

"Salz, Rich" <rsalz@akamai.com> Fri, 08 November 2013 16:16 UTC

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From: "Salz, Rich" <rsalz@akamai.com>
To: Bill Frantz <frantz@pwpconsult.com>, Johannes Merkle <johannes.merkle@secunet.com>
Date: Fri, 08 Nov 2013 11:16:13 -0500
Thread-Topic: [TLS] TLS 1.3 certificate delegation?
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Cc: "tls@ietf.org" <tls@ietf.org>, Andy Lutomirski <luto@amacapital.net>
Subject: Re: [TLS] TLS 1.3 certificate delegation?
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> > It is a bad idea to introduce violations of PKIX standards (RFC 5280) in TLS  1.3.

> Please explain why.

TLS uses certificates.  Certificates use the CA structure.  The CA structure has a particular trust model.  PKIX [dr]efines an instance of that trust model. PKIX is used throughout the Internet when X.509 certificates are used, almost exclusively.  It is hard to write trust-path code and get it right. Adding a new complexity for this one special case (even if it is a major user) makes library re-use harder, and is could well make all certificate-using software on the same computer open to buggy and/or confusing behavior.

"If you want PGP you know where to get it."

	/r$

--  
Principal Security Engineer
Akamai Technology
Cambridge, MA

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