Re: [Cfrg] Practical summary of ECDH in TLS regarding the curve features

Robert Ransom <rransom.8774@gmail.com> Mon, 28 July 2014 02:11 UTC

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Date: Sun, 27 Jul 2014 19:11:09 -0700
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From: Robert Ransom <rransom.8774@gmail.com>
To: Andrey Jivsov <crypto@brainhub.org>
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Subject: Re: [Cfrg] Practical summary of ECDH in TLS regarding the curve features
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On 7/27/14, Andrey Jivsov <crypto@brainhub.org> wrote:

> * an attacker can only recover one connection and must do so by doing
> ECDLP on two Ps (one is peer's k*G, another is k*his_PK) v.s.

An attacker only needs to learn the secret key of one of the keypairs
in order to recover an ECDH(E) shared secret.


Robert Ransom