[Pce] Review of draft-dhody-pce-pceps-tls13

"Stephane Litkowski (slitkows)" <slitkows@cisco.com> Tue, 19 September 2023 13:26 UTC

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From: "Stephane Litkowski (slitkows)" <slitkows@cisco.com>
To: "pce@ietf.org" <pce@ietf.org>
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Thread-Topic: Review of draft-dhody-pce-pceps-tls13
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Date: Tue, 19 Sep 2023 13:26:26 +0000
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Subject: [Pce] Review of draft-dhody-pce-pceps-tls13
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Hi WG,

Chairs requested me to review draft-dhody-pce-pceps-tls13.
Here are couple of comments regarding the draft, I'm not an expert in this area, so my comments may sometimes be inaccurate:

Intro:

  *   As RFC8253 is already making TLS 1.2 as required (Section 3.4 of RFC8253), why does this draft cares about "address support requirements for TLS 1.2" ? What is missing in RFC8253 ?



Section 4:

  *   The two first paragraph related to TLS1.2 are already covered by RFC8253 section 3.4, what is changing ?



  *   Regarding: "Implementations that support TLS 1.3 [I-D.ietf-tls-rfc8446bis<https://datatracker.ietf.org/doc/html/draft-ietf-tls-rfc8446bis-05>] are REQUIRED to support the mandatory-to-implement cipher suites listed in Section 9.1<https://datatracker.ietf.org/doc/html/draft-ietf-tls-rfc8446bis-05#section-9.1> of [I-D.ietf-tls-rfc8446bis<https://datatracker.ietf.org/doc/html/draft-ietf-tls-rfc8446bis-05>].ΒΆ<https://datatracker.ietf.org/doc/html/draft-dhody-pce-pceps-tls13#section-4-4>
     *   This is already mandated as per TLS1.3 draft (Section 9.1), so is the purpose of defining specific requirement for PCEP app ?

Security considerations:

  *   I don't see Security considerations of RFC8253 referred in the section ? shouldn't the draft build on top of it ? Is  there any new consideration compared to RFC8253 brought by TLS1.3?


Brgds,

Stephane