[secdir] Secdir last call review of draft-ietf-acme-tls-alpn-06

[Daniel Migault via Datatracker <[e-mail]>]

Reviewer: Daniel Migault
Review result: Ready

Hi,

I have reviewed this document as part of the security directorate's
ongoing effort to review all IETF documents being processed by the
IESG.  These comments were written primarily for the benefit of the
security area directors.  Document editors and WG chairs should treat
these comments just like any other last call comments.

The summary of the review is Ready

My only comment was that the text above may need some clarification.
"""This separation of layers can improve security and usability of ACME
validation.""" More specifically, it was unclear to me if the improvement
concerns the presented challenge versus the other ones (DNS or HTTP)  or
something else.

Yours,
Daniel