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Re: Squid as reverse proxy with EC private key

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Thanks a lot for the swift reply, Amos! Much appreciated.

Best regards,
Johannes

2015-09-21 19:36 GMT+02:00 Amos Jeffries <squid3@xxxxxxxxxxxxx>:
On 22/09/2015 2:09 a.m., Johannes Engel wrote:
> Dear all,
>
> I would like to run squid 3.5.8 as a reverse proxy for our webserver. I
> already have a certificate which is currently in use by the Apache
> Webserver 2.4 itself. It is based upon an EC (elliptic curve) private key
> of length 384.
> Until now I have not managed to fire up squid with by specifying https_port
> with private key and certificate. It will run, but all connection attempts
> (e.g. using openssl s_client or gnutls-cli) will break down with the
> following server-side error:
>
> Error negotiating SSL connection on FD 14: error:1408A0C1:SSL
> routines:SSL3_GET_CLIENT_HELLO:no shared cipher (1/-1)
>
> The https_port line looks like this:
> https_port 443 accel cert=/etc/squid/test.pem key=/etc/squid/test.key
> cafile=/etc/squid/globalsign.pem dhparams=/etc/squid/dhparams.pem
> defaultsite=my.web.site
>
> Does Squid simply not support elliptic curvers for primary keys? OpenSSL
> 1.0.1k is installed which works fine with the Apache...

Squid-3.x do not support Curves. Only the older DH ciphers.

For ECDH support you need to use Squid-4.

Amos

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