#if SECURITY_DEP
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-
+#if MONOTOUCH
using Mono.Security;
using Mono.Security.Cryptography;
+#else
+extern alias MonoSecurity;
+using MonoSecurity::Mono.Security;
+using MonoSecurity::Mono.Security.Cryptography;
+#endif
+
+using System.Security.Cryptography.X509Certificates;
+using System.Text;
namespace System.Security.Cryptography {