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Re: [Webpush] Major change to encryption

Martin Thomson <martin.thomson@gmail.com> Fri, 04 November 2016 00:27 UTC

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From: Martin Thomson <martin.thomson@gmail.com>
Date: Fri, 04 Nov 2016 11:27:49 +1100
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To: Costin Manolache <costin@gmail.com>
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Cc: JR Conlin <jrconlin@mozilla.com>, "webpush@ietf.org" <webpush@ietf.org>, Peter Beverloo <beverloo@google.com>
Subject: Re: [Webpush] Major change to encryption
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On 2 November 2016 at 15:46, Costin Manolache <costin@gmail.com> wrote:
> I now understand your concern - no need to steal any octet, just define that
> real message size should be 4k. I believe aesgcm also adds few byes for
> authentication - we can define that the cleartext can be 4k, with header
> and crypto overhead excluded..


I haven't increased the size limit, but I have made the request
change.  See what you think:

https://github.com/webpush-wg/webpush-encryption/pull/9

I've updated my node.js implementation to match (that's how I
generated the example):

https://github.com/martinthomson/encrypted-content-encoding/pull/28

(I'm working on an update to -vapid as we speak.)

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