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Re: [dispatch] [Sframe] Dispatch of SFrame

Sergio Garcia Murillo <sergio.garcia.murillo@gmail.com> Tue, 16 June 2020 13:44 UTC

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From: Sergio Garcia Murillo <sergio.garcia.murillo@gmail.com>
Date: Tue, 16 Jun 2020 15:44:45 +0200
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To: Eric Rescorla <ekr@rtfm.com>
Cc: Bernard Aboba <bernard.aboba@gmail.com>, DISPATCH list <dispatch@ietf.org>
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Subject: Re: [dispatch] [Sframe] Dispatch of SFrame
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Hi Eric,

 Sframe already support signatures as well. It is also implemented on my js
library.

Best regards
Sergio

El mar., 16 jun. 2020 15:03, Eric Rescorla <ekr@rtfm.com> escribió:

>
>
> On Mon, Jun 15, 2020 at 9:48 PM Bernard Aboba <bernard.aboba@gmail..com
> <bernard.aboba@gmail.com>> wrote:
>
>>
>> Finally, SFrame is not tied to a key management scheme, which allows it
>> to be potentially adapted for use in scenarios which may have quite
>> different threat models.  This may include 1-1 calls, conference calls,
>> partially or fully anonymous meetings (where some media streams may not be
>> available to some participants), and "protected meetings" (where the
>> recordings are protected from modification).  Several commenters in IETF
>> last call pointed out scenarios in which the PERC threat model was
>> insufficient (e.g. PERC allows participants to impersonate each other).
>>
>
> Note that this is also true of SFrame. It's a property of using MACs
> rather than signatures. Yes, I know one could add signatures to SFrame, but
> then one could have added that to PERC as well.
>
> -Ekr
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