Re: [TLS] Privacy considerations - identity hiding from eavesdropping in (D)TLS

Pascal Urien <pascal.urien@gmail.com> Tue, 25 August 2015 08:43 UTC

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Date: Tue, 25 Aug 2015 10:43:19 +0200
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From: Pascal Urien <pascal.urien@gmail.com>
To: "Viktor S. Wold Eide" <viktor.s.wold.eide@gmail.com>
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Subject: Re: [TLS] Privacy considerations - identity hiding from eavesdropping in (D)TLS
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Hi

a working solution fot TLS 1.0,1.1, 1.2, DTLS 1.0, 1.2 is to encrypt
the client certificat with an extra key computed from the master
secret

see
https://tools.ietf.org/html/draft-urien-badra-eap-tls-identity-protection-01

Rgs

Pascal

2015-08-24 22:56 UTC+02:00, Viktor S. Wold Eide <viktor.s.wold.eide@gmail.com>;:
> Hi,
>
> I am looking for a way to achieve identity hiding for DTLS 1.2, which also
> hopefully can be used in (D)TLS 1.3, when available.
>
> >From what I understand, for (D)TLS 1.2 it would be possible to perform an
> anonymous unencrypted handshake and then to renegotiate the connection with
> authentication within the encrypted channel, e.g., according to the expired
> draft [1]. From the latest TLS 1.3 draft [2] it appears that renegotiation
> will be removed in the upcoming 1.3 version.
>
> What is likely to be the recommended way to achieve identity hiding for
> (D)TLS 1.3, if any?
>
> [1] Transport Layer Security (TLS) Encrypted Handshake Extension,
> draft-ray-tls-encrypted-handshake-00, expired in 2012
> [2] The Transport Layer Security (TLS) Protocol Version 1.3,
> draft-ietf-tls-tls13-07
>
>
> Best regards
> Viktor S. Wold Eide
>