Remove legacy auth code (#1677)

* Remove legacy auth code

* Adds tests so we don't break PasswordHash (again)
* Clean up interfaces
* Remove duplicate code

* Use auto properties

* static using

* Don't use 'this'

* Fix build

1 files changed, 22 insertions, 0 deletions

diff --git a/MediaBrowser.Common/HexHelper.cs b/MediaBrowser.Common/HexHelper.cs
new file mode 100644
index 000000000..5587c03fd
--- /dev/null
+++ b/MediaBrowser.Common/HexHelper.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Globalization;
+
+namespace MediaBrowser.Common
+{
+    public static class HexHelper
+    {
+        public static byte[] FromHexString(string str)
+        {
+            byte[] bytes = new byte[str.Length / 2];
+            for (int i = 0; i < str.Length; i += 2)
+            {
+                bytes[i / 2] = byte.Parse(str.Substring(i, 2), NumberStyles.HexNumber, CultureInfo.InvariantCulture);
+            }
+
+            return bytes;
+        }
+
+        public static string ToHexString(byte[] bytes)
+            => BitConverter.ToString(bytes).Replace("-", "");
+    }
+}