oh dear

mscorlib/System/Security/AccessControl/CommonObjectSecurity.cs

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+using System;
+using Cpp2IlInjected;
+
+namespace System.Security.AccessControl
+{
+	/// <summary>Controls access to objects without direct manipulation of access control lists (ACLs). This class is the abstract base class for the <see cref="T:System.Security.AccessControl.NativeObjectSecurity" /> class.</summary>
+	// Token: 0x020003B9 RID: 953
+	[Token(Token = "0x20003B9")]
+	public abstract class CommonObjectSecurity : ObjectSecurity
+	{
+	}
+}

mscorlib/System/Security/AccessControl/CryptoKeySecurity.cs

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+using System;
+using Cpp2IlInjected;
+
+namespace System.Security.AccessControl
+{
+	/// <summary>Provides the ability to control access to a cryptographic key object without direct manipulation of  an Access Control List (ACL).</summary>
+	// Token: 0x020003BA RID: 954
+	[Token(Token = "0x20003BA")]
+	public sealed class CryptoKeySecurity : NativeObjectSecurity
+	{
+	}
+}

mscorlib/System/Security/AccessControl/NativeObjectSecurity.cs

@@ -0,0 +1,12 @@
+using System;
+using Cpp2IlInjected;
+
+namespace System.Security.AccessControl
+{
+	/// <summary>Provides the ability to control access to native objects without direct manipulation of Access Control Lists (ACLs). Native object types are defined by the <see cref="T:System.Security.AccessControl.ResourceType" /> enumeration.</summary>
+	// Token: 0x020003BB RID: 955
+	[Token(Token = "0x20003BB")]
+	public abstract class NativeObjectSecurity : CommonObjectSecurity
+	{
+	}
+}

mscorlib/System/Security/AccessControl/ObjectSecurity.cs

@@ -0,0 +1,12 @@
+using System;
+using Cpp2IlInjected;
+
+namespace System.Security.AccessControl
+{
+	/// <summary>Provides the ability to control access to objects without direct manipulation of Access Control Lists (ACLs). This class is the abstract base class for the <see cref="T:System.Security.AccessControl.CommonObjectSecurity" /> and <see cref="T:System.Security.AccessControl.DirectoryObjectSecurity" /> classes.</summary>
+	// Token: 0x020003BC RID: 956
+	[Token(Token = "0x20003BC")]
+	public abstract class ObjectSecurity
+	{
+	}
+}