Hello BCL developers, I have to issues to report. First, the search engine of your mailing list archive is throwing a 500 HTTP error.
Second, I was developing something where I stumbled a potentially issue in BCL (C# version). The setup is like this: - remote server written in C++ (Boost::ASIO and OpenSSL) - PC client written in C# - using pre-shared keys Using PSK is quite new to me, so I first prepared a demo client/server (hacked on a simple client&server demo from a German ASIO/OpenSSL tutorial, links see below). This works quite well, I see server sending the hint, client receiving it and sending identity and psk and everything works smoothly. BCL client, however, does not work at all. I subsclassed PskTlsClient and PskTlsClient (mostly following the unit test example, feeding it with the same data as OpenSSL version; link below). But when the TCP communication is established the handshake fails. Instead, there is a generated IOException (details see below). Checking Wireshark log confirms that the handshare is aborted right in the beginning (the WORP / IAMLEGEND containing parts are never exchanged): https://www.unix-ag.uni-kl.de/~bloch/.wearetheborg/pskbug/openssl_vs_BCL_client.png Does anyone have an idea on what's going wrong? I might be overlooking something (enabling specific TLS version?) but I cannot figure out what. https://www.heise.de/developer/artikel/SSL-TLS-Netzwerkprogrammierung-mit-Boost-Asio-Teil-3-Client-Programmierung-und-Fehlerbehandlung-3161904.html https://www.heise.de/developer/downloads/06/1/7/8/5/1/9/9/wopr-3.00.tar.bz2 https://www.unix-ag.uni-kl.de/~bloch/.wearetheborg/pskbug/WOPR_pskmod.diff https://www.unix-ag.uni-kl.de/~bloch/.wearetheborg/pskbug/Program.cs Best regards, Eduard.
