public static extern int AcceptSecurityContext(ref SecurityHandle phCredential, ref SecurityHandle phContext, ref SecurityBufferDesciption pInput, uint fContextReq, uint TargetDataRep, out SecurityHandle phNewContext, out SecurityBufferDesciption pOutput, out uint pfContextAttr, out SecurityInteger ptsTimeStamp);
public static extern int AcquireCredentialsHandle( string pszPrincipal, string pszPackage, int fCredentialUse, IntPtr PAuthenticationID, IntPtr pAuthData, int pGetKeyFn, IntPtr pvGetKeyArgument, ref SecurityHandle phCredential, ref SecurityInteger ptsExpiry);
public static extern int QuerySecurityContextToken( ref SecurityHandle phContext, ref IntPtr phToken);