More visibility restriction.

SecureBuffer/SecureBuffer.cs

@@ -8,7 +8,7 @@ using System.Threading.Tasks;
 namespace NSspi.Buffers
 {
     [StructLayout( LayoutKind.Sequential )]
-    public struct SecureBufferInternal
+    internal struct SecureBufferInternal
     {
         public int Count;
 
@@ -18,7 +18,7 @@ namespace NSspi.Buffers
         public IntPtr Buffer;
     }
 
-    public class SecureBuffer
+    internal class SecureBuffer
     {
         public SecureBuffer( byte[] buffer, BufferType type )
         {

SecureBuffer/SecureBufferAdapter.cs

@@ -7,7 +7,7 @@ using System.Threading.Tasks;
 
 namespace NSspi.Buffers
 {
-    public class SecureBufferAdapter : IDisposable
+    internal class SecureBufferAdapter : IDisposable
     {
         private bool disposed;
 

SecureBuffer/SecureBufferDataRep.cs

@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace NSspi.Buffers
 {
-    public enum SecureBufferDataRep : int
+    internal enum SecureBufferDataRep : int
     {
         /*
         #define SECURITY_NATIVE_DREP        0x00000010

SecureBuffer/SecureBufferDesc.cs

@@ -9,7 +9,7 @@ using System.Threading.Tasks;
 namespace NSspi.Buffers
 {
     [StructLayout( LayoutKind.Sequential)]
-    public struct SecureBufferDescInternal
+    internal struct SecureBufferDescInternal
     {
         public int Version;
         public int NumBuffers;

SecureBuffer/SecureBufferType.cs

@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace NSspi.Buffers
 {
-    public enum BufferType : int
+    internal enum BufferType : int
     {
         Empty = 0x00,
         Data = 0x01,