----- Forwarded message from Vick Khera <vivek@khera.org> ----- Date: Thu, 10 Oct 2013 15:23:06 -0400 From: Vick Khera <vivek@khera.org> To: pfSense support and discussion <list@lists.pfsense.org> Subject: Re: [pfSense] Can pfSense be considered trusted? What implementations of VPNs can now be trusted? Message-ID: <CALd+dcctKmfLxK+nnyCYGkc0Z6JCYJi3e3wUuOHc=+ObaOhZeQ@mail.gmail.com> Reply-To: pfSense support and discussion <list@lists.pfsense.org> On Thu, Oct 10, 2013 at 1:19 PM, Jim Thompson <jim@netgate.com> wrote:
Is there any mechanism to insert ciphers into Pfsense that are not currently supported?
You have the source code.
I, for one, am uninterested in non standards-compliant (and thus interoperable) implementations.
I personally choose the ciphers that are "hardware" optimized, since my low-end home router (ALIX) gets me faster vpn performance when I do, and I transfer files to/from office all the time. So if the GUI recommends XYZ because it is hardware accelerated, I choose it. That said, a lot of the panic-driven-secure-your-web-sites-against-the-NSA instructions recommend enabling ciphers that use ephemeral session keys. The OpenSSL included in pfSense 2.1 supports many of these. Type this "/usr/local/bin/openssl ciphers" to see them all. The ones that end with "E" in the first component are the ones with the ephemeral key-. Now, how to convince the GUI to make use of these for IPsec or OpenVPN I do not know. I'm sure you can do it via direct config file tweakage, though. I think IPsec renegotiates keys every 60 minutes anyway, so they'd have to do a lot of key breaking to snoop your data, unless they could predict your keys or sneak a MitM attack on you. To list the "strong" ciphers only, use this: /usr/local/bin/openssl ciphers "TLSv1.2:-MD5:-RC4:-aNULL:-MED:-LOW:-EXP:-NULL" _______________________________________________ List mailing list List@lists.pfsense.org http://lists.pfsense.org/mailman/listinfo/list ----- End forwarded message ----- -- Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://ativel.com http://postbiota.org AC894EC5: 38A5 5F46 A4FF 59B8 336B 47EE F46E 3489 AC89 4EC5