[openssl-users] Default key length of DH/DHE/ECDH/ECDHE

[Jakob Bohm]

On 24/07/2017 13:35, SaAtomic wrote:
> I'm not sure if this question is more suitable for the OpenVPN or the 
> OpenSSl users list.
>
> OpenSSL as the ssl/tls library for OpenVPN offers DH with and without 
> ephemeral keys as well as with or without elliptic curves.
>
> With OpenVPN 2.4.0 and OpenSSL 1.0.2l only ECDHE and DHE are 
> available, but I do not have the option to define a key length,
> so I assume OpenSSL's default key length will be used.
>
> What is the default key length of OpenSSL for DH, DHE, ECDH and ECDHE?
>
For DHE, the key size is set by the group parameters, for
which there is no default other than what the application
(in this case OpenVPN) sets.

Enjoy

Jakob
-- 
Jakob Bohm, CIO, Partner, WiseMo A/S.  https://www.wisemo.com
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