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Re: [openpgp] Martin Duke's No Objection on draft-ietf-openpgp-crypto-refresh-12: (with COMMENT)

Paul Wouters <paul.wouters@aiven.io> Thu, 14 December 2023 03:29 UTC

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From: Paul Wouters <paul.wouters@aiven.io>
Date: Wed, 13 Dec 2023 22:29:16 -0500
Message-ID: <CAGL5yWZsn4XVywg0OGNZeG5YwQrauqAgeWEr_A_dWzzKFrtetA@mail.gmail.com>
To: Martin Duke <martin.h.duke@gmail.com>
Cc: The IESG <iesg@ietf.org>, draft-ietf-openpgp-crypto-refresh@ietf.org, openpgp-chairs@ietf.org, openpgp@ietf.org, stephen.farrell@cs.tcd.ie
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Subject: Re: [openpgp] Martin Duke's No Objection on draft-ietf-openpgp-crypto-refresh-12: (with COMMENT)
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On Tue, Dec 12, 2023 at 7:01 PM Martin Duke via Datatracker <
noreply@ietf.org> wrote:

> ----------------------------------------------------------------------
> COMMENT:
> ----------------------------------------------------------------------
>
> In S2.4, the Base64 section talks about "seven-bit, printable text". Do
> you mean "six-bit"?
>

I don't think so. The exact text:

         Some systems only permit the use of blocks consisting of
seven-bit, printable text.

It does not say base64 is 7bit, just that those teletypes at the time (like
the ADM-3 "egg" terminal I used in University), only supported 7bit
printable text, and so could not do 8bit raw text, and so we have to use an
encoding (which is a base64 one which uses 6 bit printable characters only).

Similarly in the other bit (pun intended) text:

       Either of these alternatives may be ASCII-armored (see Section 6.2
<https://datatracker.ietf.org/doc/html/draft-ietf-openpgp-crypto-refresh-12#forming-ascii-armor>)
if they need to be transmitted across a text-only (or 7-bit clean) channel.

Paul

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