Selecting Curve/Cipher on outgoing Requests using TLS Proxy possible?

Question

I need to connect a legacy application to a Server that used a TLS 1.2 Connection with a Brainpool-Certificate. I am trying to accomplish this using TLS Proxy.

Using Curl I found out that I can only get the connection to work, if i explicitly specify the curve (brainpoolP256r1). I succeded connecting to the server adding the "-curves brainppolP256r1" parameter using curl.

Unfortunately I don't find a parameter to set the curve to use in TLS Proxy. Is there a way to do so?

Thank you for any help.

Answer 1

Unfortunately, Brainpool curve is not supported in the current version. However, it is very easy to add support for it.

I will post comment here when a new version with Brainpool support is available.

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UPDATE:
Support for Brainpool curve in TLS 1.2 was added in version 1.9.0.

Comments

If that can be done this would be awesome!
On incoming requests it works fine. I just need to be able to expcitly select brainpool on outgoing requests somehow.

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We have just released new version with Brainpool curve support in TLS 1.2.

Please download v1.9.0 from https://www.rebex.net/tls-proxy/ and give it a try.

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This is great, thank you so much!! However I am now getting a new error, I will create a new forum entry for that.