mono/mcs/class/referencesource/System.ServiceModel/System/ServiceModel/UnifiedSecurityMode.cs

//------------------------------------------------------------
// Copyright (c) Microsoft Corporation.  All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel
{
    using System;
    using System.ComponentModel;

    [Flags]
    internal enum UnifiedSecurityMode
    {
        None = 0x001,
        Transport = 0x004,
        Message = 0x008,
        Both = 0x010,
        TransportWithMessageCredential = 0x020,
        TransportCredentialOnly = 0x040,
    }
}