Re: [TLS] I-D Action: draft-ietf-tls-certificate-compression-05.txt

John Mattsson <john.mattsson@ericsson.com> Fri, 05 April 2019 11:04 UTC

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From: John Mattsson <john.mattsson@ericsson.com>
To: Jeremy Harris <jgh@wizmail.org>, "tls@ietf.org" <tls@ietf.org>
Thread-Topic: [TLS] I-D Action: draft-ietf-tls-certificate-compression-05.txt
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Date: Fri, 5 Apr 2019 11:03:58 +0000
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Subject: Re: [TLS] I-D Action: draft-ietf-tls-certificate-compression-05.txt
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If fragmentation is used on some layer, lowering the number of bytes can definitely reduce the number of round-trips. This should probably be explained a bit more.

If used in any of the TLS based EAP methods, the use of compression may even be needed to make the handshake complete at all as many access points drop EAP connections after 40-50 packets.
https://tools.ietf.org/html/draft-ms-emu-eaptlscert-02

John

-----Original Message-----
From: TLS <tls-bounces@ietf.org> on behalf of Jeremy Harris <jgh@wizmail.org>
Date: Friday, 5 April 2019 at 12:35
To: "TLS@ietf.org" <tls@ietf.org>
Subject: Re: [TLS] I-D Action: draft-ietf-tls-certificate-compression-05.txt

    On 05/04/2019 11:03, internet-drafts@ietf.org wrote:
    >    In TLS handshakes, certificate chains often take up the majority of
    >    the bytes transmitted.
    > 
    >    This document describes how certificate chains can be compressed to
    >    reduce the amount of data transmitted and avoid some round trips.
    
    Reducing the number of bytes (and possibly packets) is a good thing,
    but how does this reduce roundtrips?
    -- 
    Thanks,
      Jeremy
    
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