More managed code

dotnet/WhiteRabbit/MD5Digest.cs

@@ -12,7 +12,7 @@ namespace WhiteRabbit
     internal static class MD5Digest
     {
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public static unsafe uint[] Compute(Phrase input)
+        public static uint[] Compute(Phrase input)
         {
             uint a = 0x67452301;
             uint b = 0xefcdab89;

dotnet/WhiteRabbit/Phrase.cs

@@ -1,11 +1,11 @@
 namespace WhiteRabbit
 {
     // Anagram representation optimized for MD5
-    internal unsafe struct Phrase
+    internal class Phrase
     {
-        public fixed uint Buffer[8];
+        public readonly uint[] Buffer = new uint[8];
 
-        public Phrase(byte[][] words, int numberOfCharacters)
+        public unsafe Phrase(byte[][] words, int numberOfCharacters)
         {
             fixed (uint* bufferPointer = this.Buffer)
             {
@@ -34,7 +34,7 @@
             }
         }
 
-        public byte[] GetBytes()
+        public unsafe byte[] GetBytes()
         {
             fixed(uint* bufferPointer = this.Buffer)
             {