<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, Sans-Serif;font-size:12px"><div id="yui_3_16_0_1_1435494031085_6424"><span class="" id="yui_3_16_0_1_1435494031085_6452">Hello all,<br></span></div><div id="yui_3_16_0_1_1435494031085_6498"><span class="" id="yui_3_16_0_1_1435494031085_6452">I am using TLS1.2 version between the standard openssl s_server and client and cipher set to </span></div><pre id="yui_3_16_0_1_1435494031085_6499" class=""><code id="yui_3_16_0_1_1435494031085_6502" class="">DES-CBC-SHA. The connections from the client to the server goes through sucessfully. Referring the TLS1.2 RFC @ <a id="yui_3_16_0_1_1435494031085_6501" href="https://www.ietf.org/rfc/rfc5246.txt">https://www.ietf.org/rfc/rfc5246.txt</a>, <br>I see the below quote there.<br></code><br>Removed IDEA and DES cipher suites. They are now deprecated and
will be documented in a separate document.</pre><div id="yui_3_16_0_1_1435494031085_6400"><div id="yui_3_16_0_1_1435494031085_6561">I am assuming that means all DES (including 3-DES) ciphers should be removed from TLS1.2. <br></div><div dir="ltr" id="yui_3_16_0_1_1435494031085_6554">Also the above cipher is not in the list of <a id="yui_3_16_0_1_1435494031085_6580" href="https://www.openssl.org/docs/apps/ciphers.html#TLS-v1.2-cipher-suites">https://www.openssl.org/docs/apps/ciphers.html#TLS-v1.2-cipher-suites</a>. <br></div><div id="yui_3_16_0_1_1435494031085_6585" dir="ltr"><br></div><div id="yui_3_16_0_1_1435494031085_6599" dir="ltr">My question is given the above, how are my s_server and s_client able to connect through using the above cipher and TLS1.2? Is it a bug in the implementation of the s_server and s_client?</div><div id="yui_3_16_0_1_1435494031085_6600" dir="ltr"><br></div><div id="yui_3_16_0_1_1435494031085_6601" dir="ltr"><br></div><div id="yui_3_16_0_1_1435494031085_6615" dir="ltr">Thanks.<br></div><div class="" id="yui_3_16_0_1_1435494031085_6554"> </div></div><div id="yui_3_16_0_1_1435494031085_6402"><div id="yui_3_16_0_1_1435494031085_6401">truly,<br>Srinivas.</div></div></div></body></html>