diff --git a/public/TokenManager.php b/public/TokenManager.php
new file mode 100644
index 0000000..0eee6da
--- /dev/null
+++ b/public/TokenManager.php
@@ -0,0 +1,66 @@
+<?php
+//////////////////////
+// TokenManager.php //
+// DigiErbe Tresor  //
+//////////////////////
+
+class TokenManager {
+    /*
+     * VARIABLES
+     */
+    private string $storagePath; // Subdirectory under Tresor's /private directory to use to store all the token information
+    private int $expireDays;     // number of dates for a token to expire
+    private int $maxDownloads;   // maximum number of downloads before a token becomes invalid
+    private int $tokenLength;    // number of random bytes to use to create the token name
+    private string $allowedUser; // the user allowed to access the token
+    
+    /*
+     * PUBLIC FUNCTIONS
+     */
+
+    // initialize the token instance in PHP
+    public __contruct(
+        string $storagePath = '/tokens',
+        int $exireDays = 1,
+        int $maxDownloads = 1,
+        int $tokenLength = 32
+    ) {
+        $this->storagePath = $storagePath;
+        $this->$expireDays = $expireDays;
+        $this->$maxDownloads = $maxDownloads;
+        $this->$tokenLength = $tokenLength;
+    }
+
+    // generate a new token and save it to the file system
+    public generateToken(
+        string $filename,
+        string $ownerName,
+        string $allowedUser
+    ) {
+        return (['error'=>'no token generated', 'status'=>'500']);
+    }
+
+    // retrieve/download the key file connected with the token
+    public retrieveToken(string $tokenName) {
+
+    }
+
+    // check a token and remove it when it's expired
+    public cleanupToken(string $tokenName) {
+
+    }
+
+    /*
+     * PRIVATE FUNCTIONS
+     */
+    
+    // check whether a token is still valid and accessible by the user requesting it
+    private validateToken($tokenName) {
+        return null;
+    }
+
+    private getDownloadFileInfo ($tokenName) {
+        $fileInfo = [];
+        return null;
+    }
+}
\ No newline at end of file