diff --git a/Claunia.ReedSolomon/Claunia.ReedSolomon.csproj b/Claunia.ReedSolomon/Claunia.ReedSolomon.csproj
index cd41250..eddcc6b 100644
--- a/Claunia.ReedSolomon/Claunia.ReedSolomon.csproj
+++ b/Claunia.ReedSolomon/Claunia.ReedSolomon.csproj
@@ -50,6 +50,7 @@
         <Compile Include="InputOutputByteExpCodingLoop.cs" />
         <Compile Include="InputOutputByteTableCodingLoop.cs" />
         <Compile Include="Matrix.cs" />
+        <Compile Include="OutputByteInputExpCodingLoop.cs" />
         <Compile Include="Properties\AssemblyInfo.cs" />
     </ItemGroup>
     <ItemGroup>
diff --git a/Claunia.ReedSolomon/OutputByteInputExpCodingLoop.cs b/Claunia.ReedSolomon/OutputByteInputExpCodingLoop.cs
new file mode 100644
index 0000000..b629f20
--- /dev/null
+++ b/Claunia.ReedSolomon/OutputByteInputExpCodingLoop.cs
@@ -0,0 +1,35 @@
+/**
+ * One specific ordering/nesting of the coding loops.
+ *
+ * Copyright 2015, Backblaze, Inc.  All rights reserved.
+ * Copyright © 2019 Natalia Portillo
+ */
+
+namespace Claunia.ReedSolomon
+{
+    public class OutputByteInputExpCodingLoop : CodingLoopBase
+    {
+        public override void CodeSomeShards(byte[][] matrixRows, byte[][] inputs, int inputCount, byte[][] outputs,
+                                            int outputCount, int offset, int byteCount)
+        {
+            for(int iOutput = 0; iOutput < outputCount; iOutput++)
+            {
+                byte[] outputShard = outputs[iOutput];
+                byte[] matrixRow   = matrixRows[iOutput];
+
+                for(int iByte = offset; iByte < offset + byteCount; iByte++)
+                {
+                    int value = 0;
+
+                    for(int iInput = 0; iInput < inputCount; iInput++)
+                    {
+                        byte[] inputShard = inputs[iInput];
+                        value ^= Galois.Multiply(matrixRow[iInput], inputShard[iByte]);
+                    }
+
+                    outputShard[iByte] = (byte)value;
+                }
+            }
+        }
+    }
+}
\ No newline at end of file