<div class="content"><p>The <b>MPR_CREDENTIALSEX_1</b> structure is used to contain
extended credentials information (other than username/password), such as the
information used by <a href="fc2dfae9-0d04-4e1d-97c9-c51c2dc06c3b#gt_dde5e3b6-7aba-4797-8efd-8de034d99354" data-linktype="relative-path">Extensible
Authentication Protocols (EAPs)</a> or a <a href="fc2dfae9-0d04-4e1d-97c9-c51c2dc06c3b#gt_f140c18d-b996-4067-bf71-34baa6907ba1" data-linktype="relative-path">preshared key</a> based on the
level being passed in by the methods that use this structure. This structure is
used in <a href="dcad4e29-723b-4832-84d8-5bfac7895b2e" data-linktype="relative-path"><b>RRouterInterfaceSetCredentialsEx (section 3.1.4.41)</b></a>
and <a href="434d62e9-77b7-4cce-bbda-03a20685ae74" data-linktype="relative-path"><b>RRouterInterfaceGetCredentialsEx (section 3.1.4.42)</b></a>.
If a preshared key is being used <b>dwSsize</b> MUST be less than 257. Note
that the preshared key here is used to specify the credential for the
connection endpoint on the RRAS server. The other end of the connection
endpoint MUST be configured with the same preshared key in order for the
connection to be successful.   </p><dl>
<dd>
<div><pre> typedef struct _MPR_CREDENTIALSEX_1 {
   DWORD dwSize;
   DWORD dwOffset;
   BYTE bData[1];
 } MPR_CREDENTIALSEX_1,
  *PMPR_CREDENTIALSEX_1;
</pre></div>
</dd></dl><p><b>dwSize: </b>Specifies the size of the data pointed
to by the <b>bData</b> member. If dwSize is zero (0) in a call to <b>RRouterInterfaceSetCredentialsEx</b>
and the key is a preshared key, the key is deleted. </p><p><b>dwOffset: </b>Offset where the data starts in the
structure.</p><p><b>bData: </b>Pointer to the credential information.
Note that bData[1] is only a placeholder and the actual data of size <b>dwSize</b>
is stored at the end of the structure. The actual value stored here can be
either a preshared key or the EAP information <a href="37235430-8381-499c-99d8-d55219a36785" data-linktype="relative-path"><b>EAPTLS_USER_PROPERTIES (section 2.2.1.2.128)</b></a>. 
</p></div>