Extended ByteHelper class

BarbezDotEu.Byte/BarbezDotEu.Byte.Testing.Unit/BarbezDotEu.Byte.Testing.Unit.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <Authors>Hannes Barbez</Authors>
     <Company>Hannes Barbez</Company>
     <Title>BarbezDotEu.Byte</Title>

BarbezDotEu.Byte/BarbezDotEu.Byte/BarbezDotEu.Byte.csproj

@@ -7,7 +7,7 @@
     <Product>BarbezDotEu.Byte</Product>
     <PackageId>BarbezDotEu.Byte</PackageId>
     <Copyright>©2022 Hannes Barbez</Copyright>
-    <Version>2.0.0</Version>
+    <Version>2.1.0</Version>
     <Description>Generic logic pertaining to byte and byte arrays.</Description>
     <PackageTags>byte, byte array</PackageTags>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>

BarbezDotEu.Byte/BarbezDotEu.Byte/ByteHelper.cs

@@ -1,6 +1,8 @@
 // Copyright (c) Hannes Barbez. All rights reserved.
 // Licensed under the GNU General Public License v3.0
 
+using System;
+using System.Linq;
 using System.Text;
 
 namespace BarbezDotEu.Byte
@@ -24,5 +26,35 @@ public static byte[] ToByteArray(this string input, Encoding encoding = default)
 
             return encoding.GetBytes(input);
         }
+
+        /// <summary>
+        /// Converts a "written" byte-array to an actual byte array.
+        /// e.g. input string: 69CC766AEFAE05F6BE92A529E27D6AC50A0DC73EFB3631534B5E41A9311D56AB.
+        /// </summary>
+        /// <param name="hex">The "written" byte-array to convert.</param>
+        /// <returns>The actual byte-array representation.</returns>
+        /// <remarks>Based on https://stackoverflow.com/a/321404/8669939</remarks>
+        public static byte[] StringToByteArray(this string hex)
+        {
+            // TODO: Check what can and cannot be merged with ToByteArray method above, and rename or remove accordingly if needed.
+            return Enumerable.Range(0, hex.Length)
+                             .Where(x => x % 2 == 0)
+                             .Select(x => Convert.ToByte(hex.Substring(x, 2), 16))
+                             .ToArray();
+        }
+
+        /// <summary>
+        /// Generates a string representation of a byte array.
+        /// </summary>
+        /// <param name="hash">The hash to write as string.</param>
+        /// <returns>A string representation of the hash.</returns>
+        public static string ByteArrayToString(byte[] hash)
+        {
+            var stringBuilder = new StringBuilder(hash.Length * 2);
+            foreach (byte @byte in hash)
+                stringBuilder.Append(@byte.ToString("X2"));
+
+            return stringBuilder.ToString();
+        }
     }
 }