diff --git a/OpenSim/Framework/Util.cs b/OpenSim/Framework/Util.cs
index 050f826c99..aca0edf77e 100644
--- a/OpenSim/Framework/Util.cs
+++ b/OpenSim/Framework/Util.cs
@@ -1230,12 +1230,12 @@ namespace OpenSim.Framework
             return (char)(b > 9 ? b + 0x37 : b + '0');
         }
 
-        public static string bytesToHexString(byte[] bytes, bool lowerCaps)
+        public static string bytesToHexString(Span<byte> bytes, bool lowerCaps)
         {
             if (bytes == null || bytes.Length == 0)
                 return string.Empty;
 
-            char[] chars = new char[2 * bytes.Length];
+            Span<char> chars = stackalloc char[2 * bytes.Length];
             if (lowerCaps)
             {
                 for (int i = 0, j = 0; i < bytes.Length; ++i)
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 81be18b4cb..75be16f284 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -52,6 +52,7 @@ using System.Diagnostics;
 using System.Drawing;
 using System.Globalization;
 using System.Reflection;
+using System.Security.Cryptography;
 using System.Text;
 using System.Text.RegularExpressions;
 using System.Threading;
@@ -8228,6 +8229,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return Util.SHA1Hash(src, Encoding.UTF8).ToLower();
         }
 
+        public LSL_String llSHA256String(LSL_String input)
+        {
+            // Create a SHA256   
+            using SHA256 sha256Hash = SHA256.Create();
+
+            // ComputeHash - returns byte array
+            Span<byte> bytes = sha256Hash.ComputeHash(Encoding.UTF8.GetBytes(input)).AsSpan();
+            return Util.bytesToHexString(bytes, true);
+        }
+
         protected ObjectShapePacket.ObjectDataBlock SetPrimitiveBlockShapeParams(SceneObjectPart part, int holeshape, LSL_Vector cut, float hollow, LSL_Vector twist, byte profileshape, byte pathcurve)
         {
             float tempFloat;                                    // Use in float expressions below to avoid byte cast precision issues.
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
index 8213f5f9dc..ce8351d869 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
@@ -2623,7 +2623,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             using (SHA256 sha256Hash = SHA256.Create())  
             {  
                 // ComputeHash - returns byte array
-                byte[] bytes = sha256Hash.ComputeHash(Encoding.UTF8.GetBytes(input));  
+                Span<byte> bytes = sha256Hash.ComputeHash(Encoding.UTF8.GetBytes(input)).AsSpan();  
                 return Util.bytesToHexString(bytes, true);
             }
         }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
index d0514faf3b..70324cae8e 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
@@ -274,6 +274,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
               void llMapDestination(string simname, LSL_Vector pos, LSL_Vector look_at);
         LSL_String llMD5String(string src, int nonce);
         LSL_String llSHA1String(string src);
+        LSL_String llSHA256String(LSL_String src);
               void llMessageLinked(int linknum, int num, string str, string id);
               void llMinEventDelay(double delay);
               void llModifyLand(int action, int brush);
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Stub.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Stub.cs
index 66dac051bd..3b650605b0 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Stub.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Stub.cs
@@ -1157,6 +1157,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             return m_LSL_Functions.llSHA1String(src);
         }
 
+        public LSL_String llSHA256String(LSL_String src)
+        {
+            return m_LSL_Functions.llSHA256String(src);
+        }
+
         public void llMessageLinked(int linknum, int num, string str, string id)
         {
             m_LSL_Functions.llMessageLinked(linknum, num, str, id);