Kerberos TGT Update

inc/kerbtgs/CrackMapCore/Asn1/Asn1Extensions.cs

@@ -0,0 +1,47 @@
+using System;
+
+namespace Rubeus.Asn1 {
+    public static class Asn1Extensions {
+
+        public static byte[] DepadLeft(this byte[] data) {
+
+            int leadingZeros = 0;
+            for (var i = 0; i < data.Length; i++) {
+                if (data[i] == 0) {
+                    leadingZeros++;
+                } else {
+                    break;
+                }
+            }
+
+            byte[] result = new byte[data.Length - leadingZeros];
+            Array.Copy(data, leadingZeros, result, 0, data.Length - leadingZeros);
+            return result;
+        }
+
+        public static byte[] PadLeft(this byte[] data, int totalSize) {
+
+            if(data.Length == totalSize) {
+                return data;
+            }
+
+            if(totalSize < data.Length) {
+                throw new ArgumentException("data bigger than totalSize, cannot pad with 0's");
+            }
+
+            byte[] result = new byte[totalSize];
+            data.CopyTo(result, totalSize - data.Length);
+            return result;
+        }
+
+        public static byte[] PadRight(this byte[] data, int length) {
+            if (data.Length == length) {
+                return data;
+            }
+
+            var copy = new byte[length];
+            data.CopyTo(copy, length - data.Length);
+            return copy;
+        }
+    }
+}