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Re: [TLS] Mail regarding draft-ietf-tls-tls13

Ben Personick <ben.personick@iongroup.com> Mon, 18 June 2018 19:12 UTC

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From: Ben Personick <ben.personick@iongroup.com>
To: Tony Arcieri <bascule@gmail.com>
CC: "tls@ietf.org" <tls@ietf.org>
Thread-Topic: [TLS] Mail regarding draft-ietf-tls-tls13
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Date: Mon, 18 Jun 2018 19:12:10 +0000
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Subject: Re: [TLS] Mail regarding draft-ietf-tls-tls13
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Hello Tony,

  So essentially TLS 1.3 drops support for DH/DHE ciphers on RSA keys, but willl otherwise work as expected?

Ben

________________________________
From: Tony Arcieri <bascule@gmail.com>
Sent: Monday, June 18, 2018 11:36
To: Ben Personick
Cc: <tls@ietf.org>
Subject: Re: [TLS] Mail regarding draft-ietf-tls-tls13

On Mon, Jun 18, 2018 at 6:30 AM Ben Personick <ben.personick@iongroup.com<mailto:ben.personick@iongroup.com>> wrote:
There is a common thread circulating, that all support for RSA Certificates/Ciphers are dropped in TLS 1.3.

RSA certificates will continue to work in TLS 1.3+.

What will not be supported in TLS 1.3+ is RSA key transport / key encipherment (which lacks forward secrecy, among other problems). However, this is a property of how the protocol does key exchange / key agreement and has nothing to do with certificates.

--
Tony Arcieri

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