diff --git a/.idea/.idea.Larpix/.idea/workspace.xml b/.idea/.idea.Larpix/.idea/workspace.xml
new file mode 100644
index 0000000..d0aa3b1
--- /dev/null
+++ b/.idea/.idea.Larpix/.idea/workspace.xml
@@ -0,0 +1,574 @@
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+    <task id="LOCAL-00019" summary="Add &quot;user/dm/invite/revoke&quot; and &quot;user/dm/invite/decline&quot;">
+      <option name="closed" value="true" />
+      <created>1779864762035</created>
+      <option name="number" value="00019" />
+      <option name="presentableId" value="LOCAL-00019" />
+      <option name="project" value="LOCAL" />
+      <updated>1779864762035</updated>
+    </task>
+    <task id="LOCAL-00020" summary="Make most requests use id instead of username">
+      <option name="closed" value="true" />
+      <created>1779903717843</created>
+      <option name="number" value="00020" />
+      <option name="presentableId" value="LOCAL-00020" />
+      <option name="project" value="LOCAL" />
+      <updated>1779903717843</updated>
+    </task>
+    <task id="LOCAL-00021" summary="Switch to X25519 + ML-KEM-768 encryption">
+      <option name="closed" value="true" />
+      <created>1779907182360</created>
+      <option name="number" value="00021" />
+      <option name="presentableId" value="LOCAL-00021" />
+      <option name="project" value="LOCAL" />
+      <updated>1779907182360</updated>
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+    <task id="LOCAL-00022" summary="DM keys!!!">
+      <option name="closed" value="true" />
+      <created>1779918342299</created>
+      <option name="number" value="00022" />
+      <option name="presentableId" value="LOCAL-00022" />
+      <option name="project" value="LOCAL" />
+      <updated>1779918342299</updated>
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+      <option name="project" value="LOCAL" />
+      <updated>1779965752756</updated>
+    </task>
+    <task id="LOCAL-00024" summary="vulnerabilities, vulnerabilities, vulnerabilities...">
+      <option name="closed" value="true" />
+      <created>1780035555450</created>
+      <option name="number" value="00024" />
+      <option name="presentableId" value="LOCAL-00024" />
+      <option name="project" value="LOCAL" />
+      <updated>1780035555450</updated>
+    </task>
+    <task id="LOCAL-00025" summary="improve splits">
+      <option name="closed" value="true" />
+      <created>1780037677774</created>
+      <option name="number" value="00025" />
+      <option name="presentableId" value="LOCAL-00025" />
+      <option name="project" value="LOCAL" />
+      <updated>1780037677774</updated>
+    </task>
+    <task id="LOCAL-00026" summary="add &quot;dm/messages/get&quot; request">
+      <option name="closed" value="true" />
+      <created>1780039919265</created>
+      <option name="number" value="00026" />
+      <option name="presentableId" value="LOCAL-00026" />
+      <option name="project" value="LOCAL" />
+      <updated>1780039919265</updated>
+    </task>
+    <task id="LOCAL-00027" summary="improve locks">
+      <option name="closed" value="true" />
+      <created>1780048874790</created>
+      <option name="number" value="00027" />
+      <option name="presentableId" value="LOCAL-00027" />
+      <option name="project" value="LOCAL" />
+      <updated>1780048874790</updated>
+    </task>
+    <task id="LOCAL-00028" summary="prevent user keys override, will add this later with password change">
+      <option name="closed" value="true" />
+      <created>1780131713300</created>
+      <option name="number" value="00028" />
+      <option name="presentableId" value="LOCAL-00028" />
+      <option name="project" value="LOCAL" />
+      <updated>1780131713300</updated>
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+    <task id="LOCAL-00029" summary="working messages!!@!@">
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+      <option name="presentableId" value="LOCAL-00029" />
+      <option name="project" value="LOCAL" />
+      <updated>1780397615117</updated>
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+      <option name="closed" value="true" />
+      <created>1780674501745</created>
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+      <option name="presentableId" value="LOCAL-00030" />
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+    <option name="localTasksCounter" value="31" />
+    <servers />
+  </component>
+  <component name="TypeScriptGeneratedFilesManager">
+    <option name="version" value="3" />
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+  <component name="UnityCheckinConfiguration" checkUnsavedScenes="true" />
+  <component name="UnityProjectConfiguration" hasMinimizedUI="false" />
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+        <entry key="MAIN">
+          <value>
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+    </option>
+  </component>
+  <component name="VcsManagerConfiguration">
+    <option name="CLEAR_INITIAL_COMMIT_MESSAGE" value="true" />
+    <MESSAGE value="Add license file" />
+    <MESSAGE value="Improve nonce caching" />
+    <MESSAGE value="Runner test" />
+    <MESSAGE value="Runner test 2" />
+    <MESSAGE value="Runner test 3" />
+    <MESSAGE value="Runner test 4" />
+    <MESSAGE value="Runner test 5" />
+    <MESSAGE value="Update workflows" />
+    <MESSAGE value="Change dm list indexing" />
+    <MESSAGE value="Fix user locks &amp; change return strings to blah.blah.blah" />
+    <MESSAGE value="slightly change blahs format (maybe final)" />
+    <MESSAGE value="add &quot;user/invites/sent&quot; and &quot;user/invites/received&quot; requests" />
+    <MESSAGE value="Add &quot;idtoname&quot; request &amp; change invite format" />
+    <MESSAGE value="Add &quot;user/dm/invite/revoke&quot; and &quot;user/dm/invite/decline&quot;" />
+    <MESSAGE value="Make most requests use id instead of username" />
+    <MESSAGE value="Switch to X25519 + ML-KEM-768 encryption" />
+    <MESSAGE value="DM keys!!!" />
+    <MESSAGE value="optimizations and bug fixes:&#10;- Fixed directory cache bug in Fs&#10;- Optimized DmId creation&#10;- Optimized most splits" />
+    <MESSAGE value="vulnerabilities, vulnerabilities, vulnerabilities..." />
+    <MESSAGE value="improve splits" />
+    <MESSAGE value="add &quot;dm/messages/get&quot; request" />
+    <MESSAGE value="improve locks" />
+    <MESSAGE value="prevent user keys override, will add this later with password change" />
+    <MESSAGE value="working messages!!@!@" />
+    <MESSAGE value="integer so unsafe!!! i need HEX!" />
+    <option name="LAST_COMMIT_MESSAGE" value="integer so unsafe!!! i need HEX!" />
+  </component>
+  <component name="XDebuggerManager">
+    <breakpoint-manager>
+      <breakpoints>
+        <breakpoint enabled="true" type="DotNet_Exception_Breakpoints">
+          <properties exception="System.OperationCanceledException" breakIfHandledByOtherCode="false" displayValue="System.OperationCanceledException" />
+          <option name="timeStamp" value="1" />
+        </breakpoint>
+        <breakpoint enabled="true" type="DotNet_Exception_Breakpoints">
+          <properties exception="System.Threading.Tasks.TaskCanceledException" breakIfHandledByOtherCode="false" displayValue="System.Threading.Tasks.TaskCanceledException" />
+          <option name="timeStamp" value="2" />
+        </breakpoint>
+        <breakpoint enabled="true" type="DotNet_Exception_Breakpoints">
+          <properties exception="System.Threading.ThreadAbortException" breakIfHandledByOtherCode="false" displayValue="System.Threading.ThreadAbortException" />
+          <option name="timeStamp" value="3" />
+        </breakpoint>
+      </breakpoints>
+    </breakpoint-manager>
+  </component>
+</project>
\ No newline at end of file
diff --git a/LarpixServer/Encryption/Encryption.cs b/LarpixServer/Encryption/Encryption.cs
index f7338d9..ca97792 100644
--- a/LarpixServer/Encryption/Encryption.cs
+++ b/LarpixServer/Encryption/Encryption.cs
@@ -193,7 +193,7 @@ public class Encryption
     
     public static string GetRandomString(int length)
     {
-        const string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz!@#$%^&*()_+=-";
+        const string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz!@_";
         return new string(Enumerable.Repeat(chars, length)
             .Select(s => s[Random.Shared.Next(s.Length)]).ToArray());
     }
diff --git a/LarpixServer/Filesystem/Fs.cs b/LarpixServer/Filesystem/Fs.cs
index ab2a8d5..2d69a7d 100644
--- a/LarpixServer/Filesystem/Fs.cs
+++ b/LarpixServer/Filesystem/Fs.cs
@@ -431,4 +431,4 @@ public class Fs
             fileLock.Release();
         }
     }
-}
\ No newline at end of file
+} 
\ No newline at end of file