[Mono-list] OpenSSL s_client talking to SslStream or SslServerStream

[Sebastien Pouliot]

Hello Peter,

A quick guess would be that the client does not use SSL3 or TLS1 -
which are the only versions Mono supports. A network trace (e.g.
wireshark) would show if this was the case or not.

Sebastien

On Wed, Aug 8, 2012 at 5:46 PM, Peter Hultqvist <phq at silentorbit.com> wrote:
> I'm writing an IMAP server that will accept SSL connections.
>
> It is tested using openssl:
>     openssl s_client -connect localhost:1993
>
> On connection an IOException is thrown with an inner
> NotSupportedException: "Unsupported security protocol type"
>
> I have tried using two methods:
>
> With the System.Net.Security.SslStream:
>
>             ssl = new SslStream(tcp.GetStream(), false);
>             ssl.BeginAuthenticateAsServer(
>                 Listener.Certificate,
>                 false,
>                 SslProtocols.Tls,
>                 false,
>                 AuthenticateSslCallback, null);
>
> And with the Mono.Security.Protocol.Tls.SslServerStream:
>
>
>                 ssl = new SslServerStream(
>                     tcp.GetStream(),
>                     Listener.Certificate,
>                     false,
>                     true, SecurityProtocolType.Tls);
>
> Both are generating the same exception mentioned above.
>
> On http://www.mono-project.com/Cryptography it mentions Tls being
> implemented but it only says 100% managed not whether it has complete
> functionality.
>
> This was all tested on Ubuntu, mono 2.10.8.1.
> Finally I tried the first example on windows and it worked.
>
> I'm not sure where to go from here, whether to look for other libraries
> or file a bug?
> Should I expect my code to work on mono?
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