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 152    <img src="space.gif" width="1" height="1" border="0" alt="">
 153    <table cellpadding="2" cellspacing="6" width="100%">
 154     <tr><td valign="top">
 155 <br />
 156
 157 <FONT SIZE="+2" COLOR="#000055"><B>Function <A NAME="silc_client_key_exchange">silc_client_key_exchange</A></FONT></B><BR><BR>
 158
 159 <FONT SIZE="+1"><B>
 160 <FONT COLOR="#000055">SYNOPSIS
 161 </FONT></B></FONT>
 162 <PRE><FONT FACE="courier" size="3">
 163     <A HREF="silcasync-SilcAsyncOperation.html">SilcAsyncOperation</A>
 164     <B>silc_client_key_exchange</B>(<A HREF="silcclient-SilcClient.html">SilcClient</A> client,
 165                              <A HREF="silcclient-SilcClientConnectionParams.html">SilcClientConnectionParams</A> *params,
 166                              <A HREF="silcpkcs-SilcPublicKey.html">SilcPublicKey</A> public_key,
 167                              <A HREF="silcpkcs-SilcPrivateKey.html">SilcPrivateKey</A> private_key,
 168                              <A HREF="silcstream-SilcStream.html">SilcStream</A> stream,
 169                              <A HREF="silcconnauth-SilcConnectionType.html">SilcConnectionType</A> conn_type,
 170                              <A HREF="silcclient-SilcClientConnectCallback.html">SilcClientConnectCallback</A> callback,
 171                              void *context);
 172
 173 </FONT></PRE><FONT SIZE="+1"><B>
 174 <FONT COLOR="#000055">DESCRIPTION
 175 </FONT></B></FONT>
 176 <PRE><FONT FACE="Helvetiva,Arial,Sans-serif">
 177     Starts key exchange protocol and authentication protocol in the
 178     connection indicated by `stream'.  This function can be be used to
 179     start SILC session with remote host (usually server) when the caller
 180     has itself created the connection, instead of calling the function
 181     <A HREF="silcclient-silc_client_connect_to_server.html">silc_client_connect_to_server</A> or <A HREF="silcclient-silc_client_connect_to_client.html">silc_client_connect_to_client</A>.  If
 182     one of those functions was used this function must not be called as
 183     in that case the key exchange is performed automatically.
 184
 185     Use this function only if you have created the connection by yourself.
 186     After creating the connection the socket must be wrapped into a
 187     socket stream.  See silcsocketstream.h for more information.  Note that
 188     the `stream' must have valid remote IP address (and optionally also
 189     hostname) and port set.
 190
 191     The `params' may be provided to provide various connection parameters.
 192     The `public_key' and the `private_key' is your identity used in this
 193     session.  The `callback' with `context' will be called after the session
 194     has been set up.  It will also be called later when remote host
 195     disconnects.  The `conn_type' is the type of session this is going to
 196     be.  If the remote is SILC server it is SILC_CONN_SERVER or if it is
 197     SILC client it is SILC_CONN_CLIENT.
 198
 199     Returns <A HREF="silcasync-SilcAsyncOperation.html">SilcAsyncOperation</A> which can be used to cancel the connecting,
 200     or NULL on error.  Note that the returned pointer becomes invalid
 201     after the `callback' is called.
 202
 203 </FONT></PRE><FONT SIZE="+1"><B>
 204 <FONT COLOR="#000055">EXAMPLE
 205 </FONT></B></FONT>
 206 <PRE><FONT FACE="courier" size="3">
 207     int sock;
 208
 209     // Create remote connection stream.  Resolve hostname and IP also.
 210     sock = create_connection(remote_host, port);
 211     <A HREF="silcsocketstream-silc_socket_tcp_stream_create.html">silc_socket_tcp_stream_create</A>(sock, <A HREF="silctypes-TRUE.html">TRUE</A>, <A HREF="silctypes-FALSE.html">FALSE</A>, schedule,
 212                                   stream_create_cb, app);
 213
 214     // Stream callback delivers our new <A HREF="silcstream-SilcStream.html">SilcStream</A> context
 215     void stream_create_cb(<A HREF="silcsocketstream-SilcSocketStreamStatus.html">SilcSocketStreamStatus</A> status, <A HREF="silcstream-SilcStream.html">SilcStream</A> stream,
 216                           void *context)
 217     {
 218       ...
 219       if (status != SILC_SOCKET_OK)
 220         error(status);
 221
 222       // Start key exchange
 223       <B>silc_client_key_exchange</B>(client, NULL, public_key, private_key,
 224                                stream, SILC_CONN_SERVER, connection_cb, app);
 225       ...
 226     }
 227
 228 </FONT></PRE>
 229 <br /><br /><br /><br />
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 231    </table>
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 243 <A HREF="silcclient.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">Client Library Interface</A><BR>
 244 <A HREF="silcclient-SilcClientConnectionStatus.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcClientConnectionStatus</A><BR>
 245 <A HREF="silcclient-SilcClientRunning.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcClientRunning</A><BR>
 246 <A HREF="silcclient-SilcClientStopped.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcClientStopped</A><BR>
 247 <A HREF="silcclient-SilcClientConnectCallback.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcClientConnectCallback</A><BR>
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 252 <A HREF="silcclient-SilcKeyAgreementStatus.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcKeyAgreementStatus</A><BR>
 253 <A HREF="silcclient-SilcKeyAgreementCallback.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcKeyAgreementCallback</A><BR>
 254 <A HREF="silcclient-SilcPrivateMessageKeys.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcPrivateMessageKeys</A><BR>
 255 <A HREF="silcclient-SilcChannelPrivateKey.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcChannelPrivateKey</A><BR>
 256 <A HREF="silcclient-SilcAskPassphrase.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcAskPassphrase</A><BR>
 257 <A HREF="silcclient-SilcVerifyPublicKey.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcVerifyPublicKey</A><BR>
 258 <A HREF="silcclient-SilcGetAuthMeth.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcGetAuthMeth</A><BR>
 259 <A HREF="silcclient-SilcClientMessageType.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcClientMessageType</A><BR>
 260 <A HREF="silcclient-SilcClientOperations.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcClientOperations</A><BR>
 261 <A HREF="silcclient-SilcClientParams.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcClientParams</A><BR>
 262 <A HREF="silcclient-silc_client_alloc.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_alloc</A><BR>
 263 <A HREF="silcclient-silc_client_free.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_free</A><BR>
 264 <A HREF="silcclient-silc_client_init.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_init</A><BR>
 265 <A HREF="silcclient-silc_client_run.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_run</A><BR>
 266 <A HREF="silcclient-silc_client_run_one.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_run_one</A><BR>
 267 <A HREF="silcclient-silc_client_stop.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_stop</A><BR>
 268 <A HREF="silcclient-SilcClientConnectionParams.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcClientConnectionParams</A><BR>
 269 <A HREF="silcclient-silc_client_connect_to_server.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_connect_to_server</A><BR>
 270 <A HREF="silcclient-silc_client_connect_to_client.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_connect_to_client</A><BR>
 271 <A HREF="silcclient-silc_client_key_exchange.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_key_exchange</A><BR>
 272 <A HREF="silcclient-silc_client_close_connection.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_close_connection</A><BR>
 273 <A HREF="silcclient-silc_client_send_channel_message.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_send_channel_message</A><BR>
 274 <A HREF="silcclient-silc_client_send_private_message.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_send_private_message</A><BR>
 275 <A HREF="silcclient-silc_client_private_message_wait_init.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_private_message_wait_init</A><BR>
 276 <A HREF="silcclient-silc_client_private_message_wait_uninit.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_private_message_wait_uninit</A><BR>
 277 <A HREF="silcclient-silc_client_private_message_wait.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_private_message_wait</A><BR>
 278 <A HREF="silcclient-silc_client_on_channel.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_on_channel</A><BR>
 279 <A HREF="silcclient-silc_client_command_call.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_command_call</A><BR>
 280 <A HREF="silcclient-SilcClientCommandReply.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcClientCommandReply</A><BR>
 281 <A HREF="silcclient-silc_client_command_send.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_command_send</A><BR>
 282 <A HREF="silcclient-silc_client_command_pending.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_command_pending</A><BR>
 283 <A HREF="silcclient-silc_client_add_private_message_key.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_add_private_message_key</A><BR>
 284 <A HREF="silcclient-silc_client_add_private_message_key_ske.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_add_private_message_key_ske</A><BR>
 285 <A HREF="silcclient-silc_client_del_private_message_key.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_del_private_message_key</A><BR>
 286 <A HREF="silcclient-silc_client_list_private_message_keys.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_list_private_message_keys</A><BR>
 287 <A HREF="silcclient-silc_client_free_private_message_keys.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_free_private_message_keys</A><BR>
 288 <A HREF="silcclient-silc_client_private_message_key_is_set.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_private_message_key_is_set</A><BR>
 289 <A HREF="silcclient-silc_client_add_channel_private_key.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_add_channel_private_key</A><BR>
 290 <A HREF="silcclient-silc_client_del_channel_private_keys.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_del_channel_private_keys</A><BR>
 291 <A HREF="silcclient-silc_client_del_channel_private_key.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_del_channel_private_key</A><BR>
 292 <A HREF="silcclient-silc_client_list_channel_private_keys.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_list_channel_private_keys</A><BR>
 293 <A HREF="silcclient-silc_client_current_channel_private_key.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_current_channel_private_key</A><BR>
 294 <A HREF="silcclient-silc_client_send_key_agreement.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_send_key_agreement</A><BR>
 295 <A HREF="silcclient-silc_client_perform_key_agreement.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_perform_key_agreement</A><BR>
 296 <A HREF="silcclient-silc_client_perform_key_agreement_stream.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_perform_key_agreement_stream</A><BR>
 297 <A HREF="silcclient-silc_client_abort_key_agreement.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_abort_key_agreement</A><BR>
 298 <A HREF="silcclient-silc_client_set_away_message.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_set_away_message</A><BR>
 299 <A HREF="silcclient-SilcClientMonitorStatus.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcClientMonitorStatus</A><BR>
 300 <A HREF="silcclient-SilcClientFileError.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcClientFileError</A><BR>
 301 <A HREF="silcclient-SilcClientFileMonitor.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcClientFileMonitor</A><BR>
 302 <A HREF="silcclient-SilcClientFileName.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcClientFileName</A><BR>
 303 <A HREF="silcclient-SilcClientFileAskName.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">SilcClientFileAskName</A><BR>
 304 <A HREF="silcclient-silc_client_file_send.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_file_send</A><BR>
 305 <A HREF="silcclient-silc_client_file_receive.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_file_receive</A><BR>
 306 <A HREF="silcclient-silc_client_file_close.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_file_close</A><BR>
 307 <A HREF="silcclient-silc_client_attribute_add.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_attribute_add</A><BR>
 308 <A HREF="silcclient-silc_client_attribute_del.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_attribute_del</A><BR>
 309 <A HREF="silcclient-silc_client_attributes_get.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_attributes_get</A><BR>
 310 <A HREF="silcclient-silc_client_attributes_request.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_attributes_request</A><BR>
 311 <A HREF="silcclient-silc_client_nickname_format.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_nickname_format</A><BR>
 312 <A HREF="silcclient-silc_client_nickname_parse.html"><IMG SRC="index_pic.gif" BORDER="0" ALT="">silc_client_nickname_parse</A><BR>
 313 </font>
 314
 315 <br /><br /><br /><br />
 316     </td></tr>
 317     </table>
 318   </td>
 319 </tr>
 320 </table>
 321
 322 <table border="0" cellspacing="0" cellpadding="0" width="100%">
 323 <tr bgcolor="#444444"><td><img src="space.gif" width="1" height="1"border="0" alt="" ></td></tr>
 324 </table>
 325 <table border="0" cellspacing="0" cellpadding="6" width="100%">
 326  <tr valign="top" bgcolor="#dddddd">
 327   <td><small>Copyright &copy; 2001 - 2007 SILC Project<br />
 328     <a href="http://silcnet.org">SILC Project Website</a></small></td>
 329   <td align="right"><small>
 330    <a href="index.html">SILC Toolkit Reference Manual</a><br />
 331    <a href="toolkit_index.html">Index</a></small></td>
 332    </small></td>
 333  </tr>
 334 </table>
 335
 336 </body>
 337 </html>