CryptoHelper.GetTsqlLikeHashBytes

hannesbarbez · Feb 3, 2023 · 609ea19 · 609ea19
1 parent f715e75
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diff --git a/BarbezDotEu.Byte/BarbezDotEu.Byte/BarbezDotEu.Byte.csproj b/BarbezDotEu.Byte/BarbezDotEu.Byte/BarbezDotEu.Byte.csproj
@@ -6,8 +6,8 @@
     <Title>BarbezDotEu.Byte</Title>
     <Product>BarbezDotEu.Byte</Product>
     <PackageId>BarbezDotEu.Byte</PackageId>
-    <Copyright>©2022 Hannes Barbez</Copyright>
-    <Version>2.1.0</Version>
+    <Copyright>©2023 Hannes Barbez</Copyright>
+    <Version>2.2.0</Version>
     <Description>Generic logic pertaining to byte and byte arrays.</Description>
     <PackageTags>byte, byte array</PackageTags>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>

diff --git a/BarbezDotEu.Byte/BarbezDotEu.Byte/CryptoHelper.cs b/BarbezDotEu.Byte/BarbezDotEu.Byte/CryptoHelper.cs
@@ -0,0 +1,26 @@
+// Copyright (c) Hannes Barbez. All rights reserved.
+// Licensed under the GNU General Public License v3.0
+
+using System.Security.Cryptography;
+using System.Text;
+
+namespace BarbezDotEu.Byte
+{
+    /// <summary>
+    /// Helpers for cryptography.
+    /// </summary>
+    public static class CryptoHelper
+    {
+        /// <summary>
+        /// Equivalent of T-SQL's HASHBYTES('SHA2_256', &lt;toHash&gt;)".
+        /// </summary>
+        /// <param name="toHash">The string to hash.</param>
+        /// <returns>The result of the hash.</returns>
+        public static byte[] GetTsqlLikeHashBytes(string toHash)
+        {
+            byte[] hashable = Encoding.Unicode.GetBytes(toHash);
+            var hasher = SHA256.Create();
+            return hasher.ComputeHash(hashable);
+        }
+    }
+}