merge common implementations and server implementations

Emby.Server.Implementations/Cryptography/CryptographyProvider.cs

@@ -0,0 +1,40 @@
+using System;
+using System.IO;
+using System.Security.Cryptography;
+using System.Text;
+using MediaBrowser.Model.Cryptography;
+
+namespace Emby.Server.Implementations.Cryptography
+{
+    public class CryptographyProvider : ICryptoProvider
+    {
+        public Guid GetMD5(string str)
+        {
+            return new Guid(ComputeMD5(Encoding.Unicode.GetBytes(str)));
+        }
+
+        public byte[] ComputeSHA1(byte[] bytes)
+        {
+            using (var provider = SHA1.Create())
+            {
+                return provider.ComputeHash(bytes);
+            }
+        }
+
+        public byte[] ComputeMD5(Stream str)
+        {
+            using (var provider = MD5.Create())
+            {
+                return provider.ComputeHash(str);
+            }
+        }
+
+        public byte[] ComputeMD5(byte[] bytes)
+        {
+            using (var provider = MD5.Create())
+            {
+                return provider.ComputeHash(bytes);
+            }
+        }
+    }
+}