diff --git a/classes/cryptography/mumie_cryptographic_key.php b/classes/cryptography/mumie_cryptographic_key.php
index 1c50439..34ca266 100644
--- a/classes/cryptography/mumie_cryptographic_key.php
+++ b/classes/cryptography/mumie_cryptographic_key.php
@@ -47,26 +47,26 @@ class mumie_cryptographic_key {
     /**
      * @var string
      */
-    private string $key;
+    private string $keyvalue;
 
     /**
      * Create a new instance
      * @param string $name
-     * @param string $key
+     * @param string $keyvalue
      */
-    public function __construct(string $name, string $key) {
+    public function __construct(string $name, string $keyvalue) {
         $this->name = $name;
-        $this->key = $key;
+        $this->keyvalue = $keyvalue;
     }
 
     /**
-     * Insert a new key into the database
+     * Insert a new keyvalue into the database
      * @return void
      * @throws dml_exception
      */
     public function create() {
         global $DB;
-        $DB->insert_record(self::MUMIE_CRYPTOGRAPHIC_KEY_TABLE, ["name" => $this->name, "key" => $this->key]);
+        $DB->insert_record(self::MUMIE_CRYPTOGRAPHIC_KEY_TABLE, ["name" => $this->name, "keyvalue" => $this->keyvalue]);
     }
 
     /**
@@ -76,7 +76,7 @@ public function create() {
      */
     public function update() {
         global $DB;
-        $DB->update_record(self::MUMIE_CRYPTOGRAPHIC_KEY_TABLE, ["name" => $this->name, "key" => $this->key, "id" => $this->id]);
+        $DB->update_record(self::MUMIE_CRYPTOGRAPHIC_KEY_TABLE, ["name" => $this->name, "keyvalue" => $this->keyvalue, "id" => $this->id]);
     }
 
     /**
@@ -100,7 +100,7 @@ private static function from_record($record) : ?mumie_cryptographic_key {
         if (!$record) {
             return null;
         }
-        $cryptokey = new mumie_cryptographic_key($record->name, $record->key);
+        $cryptokey = new mumie_cryptographic_key($record->name, $record->keyvalue);
         $cryptokey->set_id($record->id);
         return $cryptokey;
     }
@@ -138,18 +138,18 @@ public function set_name(string $name) : void {
     }
 
     /**
-     * Get the key
+     * Get the keyvalue
      * @return string
      */
-    public function get_key() : string {
-        return $this->key;
+    public function get_keyvalue() : string {
+        return $this->keyvalue;
     }
 
     /**
-     * Set a new key
-     * @param string $key
+     * Set a new keyvalue
+     * @param string $keyvalue
      */
-    public function set_key(string $key) : void {
-        $this->key = $key;
+    public function set_keyvalue(string $keyvalue) : void {
+        $this->keyvalue = $keyvalue;
     }
 }
diff --git a/classes/cryptography/mumie_cryptography_service.php b/classes/cryptography/mumie_cryptography_service.php
index 8291cc0..a2eaf50 100644
--- a/classes/cryptography/mumie_cryptography_service.php
+++ b/classes/cryptography/mumie_cryptography_service.php
@@ -82,7 +82,7 @@ public static function ensure_key_pair_exist() : void {
      */
     public static function sign_data(string ...$data) : string {
         self::ensure_key_pair_exist();
-        openssl_sign(implode("",  $data), $signeddata, self::get_private_key()->get_key(), OPENSSL_ALGO_SHA512);
+        openssl_sign(implode("",  $data), $signeddata, self::get_private_key()->get_keyvalue(), OPENSSL_ALGO_SHA512);
         return base64_encode($signeddata);
     }
 
@@ -143,7 +143,7 @@ private static function upsert_private_key(string $key) : void {
     private static function upsert_key(string $name, string $key) : void {
         $cryptographickey = mumie_cryptographic_key::get_by_name($name);
         if (!is_null($cryptographickey)) {
-            $cryptographickey->set_key($key);
+            $cryptographickey->set_keyvalue($key);
             $cryptographickey->update();
         } else {
             $cryptographickey = new mumie_cryptographic_key($name, $key);
diff --git a/classes/sso/user/mumie_user.php b/classes/sso/user/mumie_user.php
index 4a50e6b..d09c7be 100644
--- a/classes/sso/user/mumie_user.php
+++ b/classes/sso/user/mumie_user.php
@@ -96,7 +96,7 @@ public function load() : bool {
      * @return string
      */
     public function get_sync_id() : string {
-        return "gsso_" . $this->org . "_" . $this->mumieid;
+        return "GSSO_" . $this->org . "_" . $this->mumieid;
     }
 
     /**
diff --git a/db/install.xml b/db/install.xml
index 43129b3..c2e64dc 100644
--- a/db/install.xml
+++ b/db/install.xml
@@ -42,7 +42,7 @@
             <FIELDS>
                 <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
                 <FIELD NAME="name" TYPE="char" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
-                <FIELD NAME="key" TYPE="text" LENGTH="160" NOTNULL="true" SEQUENCE="false"/>
+                <FIELD NAME="keyvalue" TYPE="text" LENGTH="160" NOTNULL="true" SEQUENCE="false"/>
             </FIELDS>
             <KEYS>
                 <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
diff --git a/db/upgrade.php b/db/upgrade.php
index 2015563..1590506 100644
--- a/db/upgrade.php
+++ b/db/upgrade.php
@@ -91,5 +91,15 @@ function xmldb_auth_mumie_upgrade($oldversion) {
         upgrade_plugin_savepoint(true, 2023062000, 'auth', 'mumie');
     }
 
+    if ($oldversion < 2023110800) {
+        $table = new xmldb_table('auth_mumie_cryptographic_key');
+        $field = new xmldb_field('key');
+        if ($dbman->field_exists($table, $field)) {
+            $field->set_attributes(XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null);
+            $dbman->rename_field($table, $field, 'keyvalue');
+        }
+        upgrade_plugin_savepoint(true, 2023110800, 'auth', 'mumie');
+    }
+
     return true;
 }
diff --git a/publicKey.php b/publicKey.php
index d0c2bf5..634996a 100644
--- a/publicKey.php
+++ b/publicKey.php
@@ -31,4 +31,4 @@
     http_response_code(404);
     return;
 }
-echo $publickey->get_key();
+echo $publickey->get_keyvalue();
diff --git a/version.php b/version.php
index 1f879eb..a04f9e2 100644
--- a/version.php
+++ b/version.php
@@ -25,7 +25,7 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version = 2023103100;
+$plugin->version = 2023110800;
 $plugin->component = 'auth_mumie';
 $plugin->requires = 2022041900;
 $plugin->release = "v1.5.0";