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POboost asio with ECDSA certificate issue
 

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    <p>I am implementing SSL server using boost::asio.</p> <p>The context initialization is shown in below code</p> <pre><code> boost::asio::ssl::context_base::method SSL_version = static_cast&lt;boost::asio::ssl::context_base::method&gt;(param_values[ID_PROTOCOL_VERSION].int32_value); // load certificate files boost::shared_ptr&lt;boost::asio::ssl::context&gt; context_ = boost::shared_ptr&lt;boost::asio::ssl::context&gt;( new boost::asio::ssl::context(SSL_version)); p_ctx = boost::static_pointer_cast&lt;void&gt;(context_); context_-&gt;set_options(boost::asio::ssl::context::default_workarounds); context_-&gt;use_certificate_chain_file(cert_chain_file); context_-&gt;use_certificate_file(cert_file, boost::asio::ssl::context::pem); context_-&gt;use_private_key_file(cert_file, boost::asio::ssl::context::pem); context_-&gt;set_verify_mode(boost::asio::ssl::verify_peer | boost::asio::ssl::verify_fail_if_no_peer_cert); context_-&gt;set_verify_callback(boost::bind(&amp;verify_certificate_cb, _1, _2)); if (param_values[ID_CIPHER_LIST].int32_value != 0) { std::string cipher_list = ""; generate_cipher_list(param_values[ID_CIPHER_LIST].int32_value, cipher_list); MA5G_logger::log(PRIORITY_INFO, "Supported cipher list %s", cipher_list.c_str()); SSL_CTX_set_cipher_list((reinterpret_cast&lt;boost::asio::ssl::context*&gt;(p_ctx.get()))-&gt;native_handle(), cipher_list.c_str()); } </code></pre> <p>in the <code>cipher_list</code>, I am supporting below list</p> <pre><code>AES128-SHA:AES256-SHA:AES128-SHA256:AES256-SHA256:AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA </code></pre> <p>With <code>ECDSA</code> certificates if I use <code>cipher_list</code> given above then client can not connect to the server and gives error <code>"No shared cipher"</code>. But if I do not give <code>cipher_list</code> then the client can successfully connect to the server. The same cipher list works fine with <code>RSA</code> certificates.</p> <p>The same ECDSA certificates work fine if I use <code>openssl s_server</code> with <code>-cipher</code> option to provide supported <code>cipher_list</code></p> <p>Can anyone help with this issue?</p>
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