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Re: [TLS] TLS 1.3 - Support for compression to be removed

"Salz, Rich" <rsalz@akamai.com> Fri, 02 October 2015 15:24 UTC

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From: "Salz, Rich" <rsalz@akamai.com>
To: takamichi saito <saito@cs.meiji.ac.jp>, "tls@ietf.org" <tls@ietf.org>
Thread-Topic: [TLS] TLS 1.3 - Support for compression to be removed
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Date: Fri, 02 Oct 2015 15:24:10 +0000
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Subject: Re: [TLS] TLS 1.3 - Support for compression to be removed
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> 1) We know CRIME threat, but it can not be risk for everyone.
> e.g., CVSS v2 Base Score: 2.6 (LOW)

CVSS isn't always appropriate; CVSS2 called Heartbleed a 5; CVS v3 called it 7.5

> Which one is safer, "tls1.2" v.s. "tls1.3 with comp/decomp" ?

They are equivalent.  If you use AES-GCM and ECDHE, and you don't need 0RTT, then there is no compelling reason to use TLS 1.3.

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