diff --git a/OpenSim/Framework/Util.cs b/OpenSim/Framework/Util.cs
index 69a66e205a..af8b4c18aa 100644
--- a/OpenSim/Framework/Util.cs
+++ b/OpenSim/Framework/Util.cs
@@ -1316,8 +1316,8 @@ namespace OpenSim.Framework
         public static UUID ComputeSHA1UUID(byte[] src)
         {
             byte[] ret;
-            using (SHA1CryptoServiceProvider SHA1 = new SHA1CryptoServiceProvider())
-                ret = SHA1.ComputeHash(src);
+            using (SHA1 sha = SHA1.Create())
+                ret = sha.ComputeHash(src);
             return new UUID(ret, 2);
         }
 
@@ -1380,6 +1380,12 @@ namespace OpenSim.Framework
             return FieldToString(bytes, String.Empty);
         }
 
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static string FieldToASCIIString(byte[] bytes, int limit)
+        {
+            return CleanString(Encoding.ASCII.GetString(bytes, 0, limit < bytes.Length ? limit : bytes.Length));
+        }
+
         /// <summary>
         /// Convert a variable length field (byte array) to a string, with a
         /// field name prepended to each line of the output
@@ -2052,13 +2058,10 @@ namespace OpenSim.Framework
 
         public static string CleanString(string input)
         {
-            if (input.Length > 0)
+            for (int i = 0; i < input.Length; i++)
             {
-                for (int i = 0; i < input.Length; i++)
-                {
-                    if (input[i] == '\0' || input[i] == '\r' || input[i] == '\n')
-                        return input.Substring(0, i);
-                }
+                if (input[i] == '\0' || input[i] == '\r' || input[i] == '\n')
+                    return input.Substring(0, i);
             }
             return input;
         }
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs b/OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs
index 05a2171597..0c193a1bac 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs
@@ -185,11 +185,9 @@ namespace OpenSim.Region.ClientStack.Linden
                     m_enableFreeTestUpload = EconomyConfig.GetBoolean("AllowFreeTestUpload", m_enableFreeTestUpload);
                     m_ForceFreeTestUpload = EconomyConfig.GetBoolean("ForceFreeTestUpload", m_ForceFreeTestUpload);
                     string testcreator = EconomyConfig.GetString("TestAssetsCreatorID", "");
-                    if (testcreator != "")
+                    if (!string.IsNullOrEmpty(testcreator))
                     {
-                        UUID id;
-                        UUID.TryParse(testcreator, out id);
-                        if (id != null)
+                        if (UUID.TryParse(testcreator, out UUID id))
                             m_testAssetsCreatorID = id;
                     }
                 }
@@ -198,19 +196,19 @@ namespace OpenSim.Region.ClientStack.Linden
                 if (CapsConfig != null)
                 {
                     string homeLocationUrl = CapsConfig.GetString("Cap_HomeLocation", "localhost");
-                    if(homeLocationUrl == String.Empty)
+                    if(homeLocationUrl.Length == 0)
                         m_AllowCapHomeLocation = false;
 
                     string GroupMemberDataUrl = CapsConfig.GetString("Cap_GroupMemberData", "localhost");
-                    if(GroupMemberDataUrl == String.Empty)
+                    if(GroupMemberDataUrl.Length == 0)
                         m_AllowCapGroupMemberData = false;
 
                     string LandResourcesUrl = CapsConfig.GetString("Cap_LandResources", "localhost");
-                    if (LandResourcesUrl == String.Empty)
+                    if (LandResourcesUrl.Length == 0)
                         m_AllowCapLandResources = false;
 
                     string AttachmentResourcesUrl = CapsConfig.GetString("Cap_AttachmentResources", "localhost");
-                    if (AttachmentResourcesUrl == String.Empty)
+                    if (AttachmentResourcesUrl.Length == 0)
                         m_AllowCapAttachmentResources = false;
                 }
             }
diff --git a/OpenSim/Region/PhysicsModules/ubOde/ODEMeshWorker.cs b/OpenSim/Region/PhysicsModules/ubOde/ODEMeshWorker.cs
index 46d388b02b..4ed862ae6d 100644
--- a/OpenSim/Region/PhysicsModules/ubOde/ODEMeshWorker.cs
+++ b/OpenSim/Region/PhysicsModules/ubOde/ODEMeshWorker.cs
@@ -440,7 +440,7 @@ namespace OpenSim.Region.PhysicsModule.ubOde
             {
                 if (pbs.SculptEntry)
                 {
-                    if (pbs.SculptTexture != null && !pbs.SculptTexture.IsZero())
+                    if (pbs.SculptTexture.IsNotZero())
                     {
                         repData.assetID = pbs.SculptTexture;
                         repData.meshState = MeshState.needAsset;
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 0c6c51e2ba..8054850d4a 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -6338,9 +6338,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public LSL_String llGetDate()
         {
-            DateTime date = DateTime.Now.ToUniversalTime();
-            string result = date.ToString("yyyy-MM-dd");
-            return result;
+            return DateTime.UtcNow.ToString("yyyy-MM-dd");
         }
 
         public LSL_Integer llEdgeOfWorld(LSL_Vector pos, LSL_Vector dir)
@@ -10983,7 +10981,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public LSL_String llGetTimestamp()
         {
-            return DateTime.Now.ToUniversalTime().ToString("yyyy-MM-ddTHH:mm:ss.fffffffZ");
+            return DateTime.UtcNow.ToString("yyyy-MM-ddTHH:mm:ss.fffffffZ");
         }
 
         public LSL_Integer llGetNumberOfPrims()