Re: [TLS] ETSI releases standards for enterprise security and data centre management
Tony Arcieri <bascule@gmail.com> Tue, 04 December 2018 16:18 UTC
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From: Tony Arcieri <bascule@gmail.com>
Date: Tue, 04 Dec 2018 08:18:44 -0800
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To: Nico Williams <nico@cryptonector.com>
Cc: Dmitry Belyavsky <beldmit@gmail.com>, Crypto <cryptography@metzdowd.com>, "<tls@ietf.org>" <tls@ietf.org>
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Subject: Re: [TLS] ETSI releases standards for enterprise security and data centre management
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On Sun, Dec 2, 2018 at 3:36 PM Nico Williams <nico@cryptonector.com> wrote: > > I'm not a fan of systems like this, but I believe for security reasons > they > > should be designed in such a way that only the confidentiality of traffic > > is impacted, and a "visibility" system isn't able to leverage the > decrypted > > traffic to resume decrypted sessions and thereby impersonate clients. > > Any key escrow system will have this property. Given the session keys > (or a way to recover them) you can resume decrypted sessions. Wouldn't escrowing only the client/server application traffic secrets (instead of keys higher in the schedule) avoid this problem? These keys would permit the one capability "visibility" appliance vendors allege to care about: traffic decryption, without permitting others like session resumption. The most obvious escrow design requiring no changes to the clients is to > use a static eDH key on the server-side. The next most obvious such > design is to have the server talk to the escrow agent. It seems like with an out-of-band escrow agent, the traffic secrets could be escrowed with no changes to TLS. -- Tony Arcieri
- [TLS] ETSI releases standards for enterprise secu… Dmitry Belyavsky
- Re: [TLS] ETSI releases standards for enterprise … Tony Arcieri
- Re: [TLS] ETSI releases standards for enterprise … Dmitry Belyavsky
- Re: [TLS] ETSI releases standards for enterprise … Tony Arcieri
- Re: [TLS] ETSI releases standards for enterprise … Christian Huitema
- Re: [TLS] ETSI releases standards for enterprise … Stephen Farrell
- Re: [TLS] ETSI releases standards for enterprise … Christian Huitema
- Re: [TLS] ETSI releases standards for enterprise … Blumenthal, Uri - 0553 - MITLL
- Re: [TLS] ETSI releases standards for enterprise … Nico Williams
- Re: [TLS] ETSI releases standards for enterprise … Jonathan Hoyland
- Re: [TLS] ETSI releases standards for enterprise … Salz, Rich
- Re: [TLS] ETSI releases standards for enterprise … Nico Williams
- Re: [TLS] ETSI releases standards for enterprise … Tony Arcieri
- Re: [TLS] ETSI releases standards for enterprise … Jonathan Hoyland
- Re: [TLS] ETSI releases standards for enterprise … Nico Williams
- Re: [TLS] ETSI releases standards for enterprise … Daniel Kahn Gillmor
- Re: [TLS] ETSI releases standards for enterprise … Bret Jordan
- Re: [TLS] ETSI releases standards for enterprise … Stephen Farrell
- Re: [TLS] ETSI releases standards for enterprise … Daniel Kahn Gillmor
- Re: [TLS] ETSI releases standards for enterprise … Benjamin Beurdouche
- Re: [TLS] ETSI releases standards for enterprise … Bret Jordan
- Re: [TLS] ETSI releases standards for enterprise … Stephen Farrell
- Re: [TLS] ETSI releases standards for enterprise … Bret Jordan
- Re: [TLS] ETSI releases standards for enterprise … Daniel Kahn Gillmor
- Re: [TLS] ETSI releases standards for enterprise … Tony Arcieri
- Re: [TLS] ETSI releases standards for enterprise … Salz, Rich
- Re: [TLS] ETSI releases standards for enterprise … Salz, Rich
- Re: [TLS] ETSI releases standards for enterprise … R duToit
- Re: [TLS] ETSI releases standards for enterprise … Christopher Wood
- Re: [TLS] ETSI releases standards for enterprise … Melinda Shore
- Re: [TLS] ETSI releases standards for enterprise … Andrei Popov
- Re: [TLS] ETSI releases standards for enterprise … Daniel Kahn Gillmor
- Re: [TLS] ETSI releases standards for enterprise … Daniel Kahn Gillmor
- Re: [TLS] ETSI releases standards for enterprise … Andrei Popov
- Re: [TLS] ETSI releases standards for enterprise … Tony Arcieri
- Re: [TLS] ETSI releases standards for enterprise … Viktor Dukhovni
- Re: [TLS] ETSI releases standards for enterprise … Daniel Kahn Gillmor
- Re: [TLS] ETSI releases standards for enterprise … Andrei Popov
- Re: [TLS] ETSI releases standards for enterprise … Nico Williams
- Re: [TLS] ETSI releases standards for enterprise … Tony Arcieri
- Re: [TLS] ETSI releases standards for enterprise … Arnaud.Taddei.IETF
- Re: [TLS] ETSI releases standards for enterprise … Sean Turner
- Re: [TLS] ETSI releases standards for enterprise … Eric Rescorla
- Re: [TLS] ETSI releases standards for enterprise … Sean Turner
- Re: [TLS] ETSI releases standards for enterprise … Kurt Roeckx
- Re: [TLS] ETSI releases standards for enterprise … Daniel Kahn Gillmor
- Re: [TLS] ETSI releases standards for enterprise … Salz, Rich
- Re: [TLS] ETSI releases standards for enterprise … Ryan Sleevi
- Re: [TLS] ETSI releases standards for enterprise … Arnaud.Taddei.IETF