smartcard - Connect to a SharePoint site when IIS requires client certificates -

i have application developed in c# helps me in managing permissions on our share-point 2013 site. recently, learned may loosing our local instance , moving instance that's behind cac enforced iis. have converted 1 of test sites require certificates , have tried several way send cert iis server still

"the remote server returned , error: (403) forbidden.

below few things have tried.

var handler = new webrequesthandler(); handler.clientcertificateoptions = clientcertificateoption.automatic; handler.clientcertificates.add(pki.getclientcertificate());  handler.useproxy = false;  using (var client = new httpclient(handler)) {   context connection code here } 

the pki.getclientcertificate method, made returns selected certificate in case cac cert. funny sharepoint designer connects without issue or prompt. on matter appreciated.

just add more things have tried

context.credentials = new sharepointonlinecredentials(uli.username, uli.password); 

the uli username certificate converted username have class dose conversion. password pin converted secure string. same message when adding credentials context.

i found workable slow solution here:

http://sharepoint.findincity.net/view/635399286724222582121618/ssl-certificate-error-when-using-client-object-model

the issue every time call context have send certificate chain. 1 thing changed users code following.

static void context_executingwebrequest(object sender, webrequesteventargs e) {  intptr ptr = intptr.zero;  x509certificate2 certificate = null;  x509certificate t = null;  var store = new x509store(storename.my, storelocation.currentuser);  store.open(openflags.readonly | openflags.openexistingonly);               // nothing if no cert found.         httpwebrequest webreq = e.webrequestexecutor.webrequest;         //webreq.proxy = new webproxy("http://[proxyaddress]");          //specify proxy address if need         // x509certificate cert = pki.getclientcertificate();         foreach (x509certificate c in store.certificates)         {             webreq.clientcertificates.add(c);         }     } 

i dumped certificates request because didn't want have prompt every time clicked something. if has more efficient way let me know.

the code below shows use of clientcontext , how validates cert

using (context = new clientcontext(siteurl))             {                 servicepointmanager.servercertificatevalidationcallback = delegate(object sender1, x509certificate certificate, x509chain chain, sslpolicyerrors sslpolicyerrors)                      {                          bool validationresult = true;                          return validationresult;                      };                 context.executingwebrequest += new eventhandler<webrequesteventargs>(context_executingwebrequest); 

//add context commands below line }