oh dear

mscorlib/Mono/Security/Cryptography/MD4.cs

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+using System;
+using System.Security.Cryptography;
+using Cpp2IlInjected;
+
+namespace Mono.Security.Cryptography
+{
+	// Token: 0x02000043 RID: 67
+	[Token(Token = "0x2000043")]
+	internal abstract class MD4 : HashAlgorithm
+	{
+		// Token: 0x060001A2 RID: 418 RVA: 0x00002050 File Offset: 0x00000250
+		[Token(Token = "0x60001A2")]
+		[Address(RVA = "0x63B0E0", Offset = "0x639EE0", VA = "0x18063B0E0")]
+		protected MD4()
+		{
+		}
+
+		// Token: 0x060001A3 RID: 419 RVA: 0x00002082 File Offset: 0x00000282
+		[Token(Token = "0x60001A3")]
+		[Address(RVA = "0x2B28270", Offset = "0x2B27070", VA = "0x182B28270")]
+		public new static MD4 Create()
+		{
+			return null;
+		}
+	}
+}