diff --git a/plugin/lti_provider/Entity/PlatformKey.php b/plugin/lti_provider/Entity/PlatformKey.php
new file mode 100755
index 0000000000..2c90d16dd1
--- /dev/null
+++ b/plugin/lti_provider/Entity/PlatformKey.php
@@ -0,0 +1,131 @@
+<?php
+/* For licensing terms, see /license.txt */
+
+namespace Chamilo\PluginBundle\Entity\LtiProvider;
+
+use Doctrine\ORM\Mapping as ORM;
+
+/**
+ * Class Platform
+ *
+ * @package Chamilo\PluginBundle\Entity\LtiProvider
+ *
+ * @ORM\Table(name="plugin_lti_provider_platform_key")
+ * @ORM\Entity()
+ */
+class PlatformKey
+{
+    /**
+     * @var string
+     *
+     * @ORM\Column(name="public_key", type="text")
+     */
+    public $publicKey;
+    /**
+     * @var int
+     *
+     * @ORM\Column(name="id", type="integer")
+     * @ORM\Id()
+     * @ORM\GeneratedValue()
+     */
+    protected $id;
+    /**
+     * @var string
+     *
+     * @ORM\Column(name="kid", type="string")
+     */
+    private $kid;
+    /**
+     * @var string
+     *
+     * @ORM\Column(name="private_key", type="text")
+     */
+    private $privateKey;
+
+    /**
+     * Get id.
+     *
+     * @return int
+     */
+    public function getId()
+    {
+        return $this->id;
+    }
+
+    /**
+     * Set id.
+     *
+     * @param int $id
+     *
+     * @return Platform
+     */
+    public function setId($id)
+    {
+        $this->id = $id;
+
+        return $this;
+    }
+
+    /**
+     *
+     * Get kid.
+     *
+     * @return string
+     */
+    public function getKid()
+    {
+        return $this->kid;
+    }
+
+    /**
+     * Set kid.
+     *
+     * @param string $kid
+     */
+    public function setKid($kid)
+    {
+        $this->kid = $kid;
+    }
+
+    /**
+     * Get privateKey.
+     *
+     * @return string
+     */
+    public function getPrivateKey()
+    {
+        return $this->privateKey;
+    }
+
+    /**
+     * Set privateKey.
+     *
+     * @param string $privateKey
+     *
+     * @return Platform
+     */
+    public function setPrivateKey($privateKey)
+    {
+        $this->privateKey = $privateKey;
+
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getPublicKey()
+    {
+        return $this->publicKey;
+    }
+
+    /**
+     * @param string $publicKey
+     */
+    public function setPublicKey(string $publicKey)
+    {
+        $this->publicKey = $publicKey;
+    }
+
+
+}
diff --git a/plugin/lti_provider/LtiProviderPlugin.php b/plugin/lti_provider/LtiProviderPlugin.php
index 92de7f138d..c6d315918d 100644
--- a/plugin/lti_provider/LtiProviderPlugin.php
+++ b/plugin/lti_provider/LtiProviderPlugin.php
@@ -1,7 +1,7 @@
 <?php
 /* For license terms, see /license.txt */
 
-use Chamilo\PluginBundle\Entity\LtiProvider\Platform;
+use Chamilo\PluginBundle\Entity\LtiProvider\PlatformKey;
 use Doctrine\DBAL\DBALException;
 use Doctrine\DBAL\Schema\Schema;
 use Doctrine\DBAL\Types\Type;
@@ -23,9 +23,14 @@ class LtiProviderPlugin extends Plugin
     {
         $version = '1.0';
         $author = 'Christian Beeznest';
+
         $publicKey = $this->getPublicKey();
         $message = Display::return_message($this->get_lang('description'));
 
+        if (empty($publicKey)) {
+            $publicKey = $this->get_lang('GenerateKeyPairInfo');
+        }
+
         $pkHtml = '<div class="form-group ">
                     <label for="lti_provider_public_key" class="col-sm-2 control-label">'.$this->get_lang('public_key').'</label>
                     <div class="col-sm-8">
@@ -103,6 +108,33 @@ class LtiProviderPlugin extends Plugin
      */
     public function performActionsAfterConfigure()
     {
+        $em = Database::getManager();
+
+        /** @var PlatformKey $platformKey */
+        $platformKey = $em
+            ->getRepository('ChamiloPluginBundle:LtiProvider\PlatformKey')
+            ->findOneBy([]);
+
+        if ($this->get('enabled') === 'true') {
+            if (!$platformKey) {
+                $platformKey = new PlatformKey();
+            }
+
+            $keyPair = self::generatePlatformKeys();
+
+            $platformKey->setKid($keyPair['kid']);
+            $platformKey->publicKey = $keyPair['public'];
+            $platformKey->setPrivateKey($keyPair['private']);
+
+            $em->persist($platformKey);
+        } else {
+            if ($platformKey) {
+                $em->remove($platformKey);
+            }
+        }
+
+        $em->flush();
+
         return $this;
     }
 
@@ -152,6 +184,13 @@ class LtiProviderPlugin extends Plugin
                 deployment_id varchar(255) NOT NULL,
                 PRIMARY KEY(id)
             ) DEFAULT CHARACTER SET utf8 COLLATE `utf8_unicode_ci` ENGINE = InnoDB",
+            "CREATE TABLE plugin_lti_provider_platform_key (
+                    id INT AUTO_INCREMENT NOT NULL,
+                    kid VARCHAR(255) NOT NULL,
+                    public_key LONGTEXT NOT NULL,
+                    private_key LONGTEXT NOT NULL,
+                    PRIMARY KEY(id)
+                ) DEFAULT CHARACTER SET utf8 COLLATE `utf8_unicode_ci` ENGINE = InnoDB"
         ];
 
         foreach ($queries as $query) {
@@ -169,6 +208,7 @@ class LtiProviderPlugin extends Plugin
     private function dropPluginTables()
     {
         Database::query("DROP TABLE IF EXISTS plugin_lti_provider_platform");
+        Database::query("DROP TABLE IF EXISTS plugin_lti_provider_platform_key");
         return true;
     }
 
@@ -242,9 +282,19 @@ class LtiProviderPlugin extends Plugin
         ];
     }
 
+    /**
+     * Get the public key
+     *
+     * @return string
+     */
     public function getPublicKey() {
-        $keyPath = __DIR__.'/keys/public.key';
-        $publicKey = file_get_contents($keyPath);
+        $publicKey = '';
+        $platformKey = Database::getManager()
+            ->getRepository('ChamiloPluginBundle:LtiProvider\PlatformKey')
+            ->findOneBy([]);
+        if ($platformKey) {
+            $publicKey = $platformKey->getPublicKey();
+        }
         return $publicKey;
     }
 
diff --git a/plugin/lti_provider/README.md b/plugin/lti_provider/README.md
index 88bbfa95cf..a206eb5960 100644
--- a/plugin/lti_provider/README.md
+++ b/plugin/lti_provider/README.md
@@ -17,6 +17,8 @@ In this case Chamilo is used as provider , this plugin allows a student inside a
 4. Add the LTI connection details to try out this app (Configure page)
 5. To configure the Platforms LMS for registration and deployment
 
+# DB tables
+
 ## v1.0
 ```sql
 CREATE TABLE plugin_lti_provider_platform (
@@ -29,5 +31,13 @@ CREATE TABLE plugin_lti_provider_platform (
  key_set_url varchar(255) NOT NULL,
  deployment_id varchar(255) NOT NULL,
  PRIMARY KEY(id)
-) DEFAULT CHARACTER SET utf8 COLLATE `utf8_unicode_ci` ENGINE = InnoDB
+) DEFAULT CHARACTER SET utf8 COLLATE `utf8_unicode_ci` ENGINE = InnoDB;
+
+CREATE TABLE plugin_lti_provider_platform_key (
+  id INT AUTO_INCREMENT NOT NULL,
+  kid VARCHAR(255) NOT NULL,
+  public_key LONGTEXT NOT NULL,
+  private_key LONGTEXT NOT NULL,
+  PRIMARY KEY(id)
+) DEFAULT CHARACTER SET utf8 COLLATE `utf8_unicode_ci` ENGINE = InnoDB;
 ```
diff --git a/plugin/lti_provider/db/configs/local.json b/plugin/lti_provider/db/configs/local.json
deleted file mode 100755
index 6d468967f8..0000000000
--- a/plugin/lti_provider/db/configs/local.json
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-    "https://testing3.beeznest.com": {
-        "client_id": "44WGA9lh8fmsRITfBac4",
-        "auth_login_url": "https://testing3.beeznest.com/plugin/ims_lti/auth.php",
-        "auth_token_url": "https://testing3.beeznest.com/plugin/ims_lti/token.php",
-        "key_set_url": "https://testing3.beeznest.com/plugin/ims_lti/jwks.php",
-        "private_key_file": "/keys/private.key",
-        "kid": "51dadff927d803c965f6",
-        "deployment": [
-            "8"
-        ]
-    },
-    "https://11.chamilo.org": {
-        "client_id": "RcHE5hk5ruI9sOr9t0UN",
-        "auth_login_url": "https://11.chamilo.org/plugin/ims_lti/auth.php",
-        "auth_token_url": "https://11.chamilo.org/plugin/ims_lti/token.php",
-        "key_set_url": "https://11.chamilo.org/plugin/ims_lti/jwks.php",
-        "private_key_file": "/keys/private.key",
-        "kid": "e52a3d2435f9e5071e3e",
-        "deployment": [
-            "183"
-        ]
-    }
-}
diff --git a/plugin/lti_provider/db/demo_database.php b/plugin/lti_provider/db/demo_database.php
deleted file mode 100644
index 4d642b2dce..0000000000
--- a/plugin/lti_provider/db/demo_database.php
+++ /dev/null
@@ -1,65 +0,0 @@
-<?php
-/* For license terms, see /license.txt */
-
-require_once __DIR__ . '/../vendor/autoload.php';
-use \IMSGlobal\LTI;
-
-class Demo_Database implements LTI\Database
-{
-    public function find_registration_by_issuer($iss) {
-
-        $lti_customers = $this->get_lti_connection();
-        if (empty($lti_customers[$iss])) {
-            return false;
-        }
-
-        return LTI\LTI_Registration::new()
-            ->set_auth_login_url($lti_customers[$iss]['auth_login_url'])
-            ->set_auth_token_url($lti_customers[$iss]['auth_token_url'])
-            ->set_auth_server($lti_customers[$iss]['auth_token_url'])
-            ->set_client_id($lti_customers[$iss]['client_id'])
-            ->set_key_set_url($lti_customers[$iss]['key_set_url'])
-            ->set_kid($lti_customers[$iss]['kid'])
-            ->set_issuer($iss)
-            ->set_tool_private_key(file_get_contents($lti_customers[$iss]['private_key_file']));
-    }
-
-    public function find_deployment($iss, $deployment_id) {
-        if (!in_array($deployment_id, $_SESSION['iss'][$iss]['deployment'])) {
-            return false;
-        }
-        return LTI\LTI_Deployment::new()
-            ->set_deployment_id($deployment_id);
-    }
-
-    private function get_lti_connection() {
-
-        $keyPath = api_get_path(SYS_PLUGIN_PATH).'/lti_provider/keys/private.key';
-
-        $em = Database::getManager();
-        $platforms = $em->getRepository('ChamiloPluginBundle:LtiProvider\Platform')->findAll();
-
-        $lti_customers = [];
-        foreach ($platforms as $platform) {
-            $issuer = $platform->getIssuer();
-            $lti_customers[$issuer] = [
-              'client_id' => $platform->getClientId(),
-              'auth_login_url' => $platform->getAuthLoginUrl(),
-              'auth_token_url' => $platform->getAuthTokenUrl(),
-              'key_set_url' => $platform->getKeySetUrl(),
-              'private_key_file' => $keyPath,
-              'kid' => $platform->getKid(),
-              'deployment' => [$platform->getDeploymentId()]
-            ];
-        }
-        $_SESSION['iss'] = [];
-        if (!empty($lti_customers)) {
-            $_SESSION['iss'] = array_merge($_SESSION['iss'], $lti_customers);
-        }
-        return $lti_customers;
-    }
-
-    private function private_key($iss) {
-        return file_get_contents($_SESSION['iss'][$iss]['private_key_file']);
-    }
-}
diff --git a/plugin/lti_provider/db/lti13_cache.php b/plugin/lti_provider/db/lti13_cache.php
new file mode 100644
index 0000000000..be9b45dd3e
--- /dev/null
+++ b/plugin/lti_provider/db/lti13_cache.php
@@ -0,0 +1,50 @@
+<?php
+/* For license terms, see /license.txt */
+
+use Packback\Lti1p3\Interfaces\Cache as Lti1p3Cache;
+
+
+class Lti13Cache implements Lti1p3Cache
+{
+    public const NONCE_PREFIX = 'nonce_';
+
+    private $cache;
+
+    public function getLaunchData($key) {
+        $this->loadCache();
+        return $this->cache[$key];
+    }
+
+    public function cacheLaunchData($key, $jwt_body) {
+        $this->cache[$key] = $jwt_body;
+        $this->saveCache();
+        return $this;
+    }
+
+    public function cacheNonce($nonce) {
+        $this->cache['nonce'][$nonce] = true;
+        $this->saveCache();
+        return $this;
+    }
+
+    public function checkNonce($nonce) {
+        $this->loadCache();
+        if (!isset($this->cache['nonce'][$nonce])) {
+            return false;
+        }
+        return true;
+    }
+
+    private function loadCache() {
+        $cache = file_get_contents(sys_get_temp_dir() . '/lti_cache.txt');
+        if (empty($cache)) {
+            file_put_contents(sys_get_temp_dir() . '/lti_cache.txt', '{}');
+            $this->cache = [];
+        }
+        $this->cache = json_decode($cache, true);
+    }
+
+    private function saveCache() {
+        file_put_contents(sys_get_temp_dir() . '/lti_cache.txt', json_encode($this->cache));
+    }
+}
diff --git a/plugin/lti_provider/db/lti13_cookie.php b/plugin/lti_provider/db/lti13_cookie.php
new file mode 100644
index 0000000000..59022d2230
--- /dev/null
+++ b/plugin/lti_provider/db/lti13_cookie.php
@@ -0,0 +1,39 @@
+<?php
+/* For license terms, see /license.txt */
+
+use Packback\Lti1p3\Interfaces\Cookie as Lti1p3Cookie;
+
+class Lti13Cookie implements Lti1p3Cookie
+{
+    public function getCookie($name)
+    {
+        if (isset($_COOKIE[$name])) {
+            return $_COOKIE[$name];
+        }
+        // Look for backup cookie if same site is not supported by the user's browser.
+        if (isset($_COOKIE["LEGACY_" . $name])) {
+            return $_COOKIE["LEGACY_" . $name];
+        }
+        return false;
+    }
+
+    public function setCookie($name, $value, $exp = 3600, $options = []): self
+    {
+        $cookie_options = [
+            'expires' => time() + $exp
+        ];
+
+        // SameSite none and secure will be required for tools to work inside iframes
+        /*$same_site_options = [
+            'samesite' => 'None',
+            'secure' => false,
+            'httponly' => true
+        ];*/
+
+        setcookie($name, $value, array_merge($cookie_options, $same_site_options, $options));
+
+        // Set a second fallback cookie in the event that "SameSite" is not supported
+        setcookie("LEGACY_" . $name, $value, array_merge($cookie_options, $options));
+        return $this;
+    }
+}
diff --git a/plugin/lti_provider/db/lti13_database.php b/plugin/lti_provider/db/lti13_database.php
new file mode 100644
index 0000000000..7b0a04263f
--- /dev/null
+++ b/plugin/lti_provider/db/lti13_database.php
@@ -0,0 +1,75 @@
+<?php
+/* For license terms, see /license.txt */
+
+use Chamilo\PluginBundle\Entity\LtiProvider\Platform;
+use Chamilo\PluginBundle\Entity\LtiProvider\PlatformKey;
+use ChamiloSession as Session;
+use Packback\Lti1p3;
+use Packback\Lti1p3\Interfaces;
+use Packback\Lti1p3\LtiRegistration;
+use Packback\Lti1p3\LtiDeployment;
+use Packback\Lti1p3\OidcException;
+
+class Lti13Database implements Interfaces\Database
+{
+
+    public function findRegistrationByIssuer($iss, $clientId = null) {
+        $ltiCustomers = $this->getLtiConnection();
+        if (empty($ltiCustomers[$iss])) {
+            return false;
+        }
+
+        if (!isset($clientId)) {
+            $clientId = $ltiCustomers[$iss]['client_id'];
+        }
+
+        return LtiRegistration::new()
+            ->setAuthLoginUrl($ltiCustomers[$iss]['auth_login_url'])
+            ->setAuthTokenUrl($ltiCustomers[$iss]['auth_token_url'])
+            ->setClientId($clientId)
+            ->setKeySetUrl($ltiCustomers[$iss]['key_set_url'])
+            ->setKid($ltiCustomers[$iss]['kid'])
+            ->setIssuer($iss)
+            ->setToolPrivateKey($this->getPrivateKey());
+    }
+
+    public function findDeployment($iss, $deploymentId, $clientId = null) {
+        if (!in_array($deploymentId, $_SESSION['iss'][$iss]['deployment'])) {
+            return false;
+        }
+        return LtiDeployment::new()
+                ->setDeploymentId($deploymentId);
+    }
+
+    private function getLtiConnection() {
+
+        $em = Database::getManager();
+        $platforms = $em->getRepository('ChamiloPluginBundle:LtiProvider\Platform')->findAll();
+
+        $ltiCustomers = [];
+        foreach ($platforms as $platform) {
+            $issuer = $platform->getIssuer();
+            $ltiCustomers[$issuer] = [
+              'client_id' => $platform->getClientId(),
+              'auth_login_url' => $platform->getAuthLoginUrl(),
+              'auth_token_url' => $platform->getAuthTokenUrl(),
+              'key_set_url' => $platform->getKeySetUrl(),
+              'kid' => $platform->getKid(),
+              'deployment' => [$platform->getDeploymentId()]
+            ];
+        }
+        Session::write('iss', $ltiCustomers);
+        return $ltiCustomers;
+    }
+
+    private function getPrivateKey() {
+        $privateKey = '';
+        $platformKey = Database::getManager()
+            ->getRepository('ChamiloPluginBundle:LtiProvider\PlatformKey')
+            ->findOneBy([]);
+        if ($platformKey) {
+            $privateKey = $platformKey->getPrivateKey();
+        }
+        return $privateKey;
+    }
+}
diff --git a/plugin/lti_provider/delete.php b/plugin/lti_provider/delete.php
index ba0446d213..b6486ab479 100644
--- a/plugin/lti_provider/delete.php
+++ b/plugin/lti_provider/delete.php
@@ -13,7 +13,7 @@ if (!isset($_REQUEST['id'])) {
     api_not_allowed(true);
 }
 
-$platformId = intval($_REQUEST['id']);
+$platformId = (int)$_REQUEST['id'];
 
 $plugin = LtiProviderPlugin::create();
 $em = Database::getManager();
diff --git a/plugin/lti_provider/edit.php b/plugin/lti_provider/edit.php
index ebd34c74d6..b87c2afeef 100644
--- a/plugin/lti_provider/edit.php
+++ b/plugin/lti_provider/edit.php
@@ -14,7 +14,7 @@ if (!isset($_REQUEST['id'])) {
     api_not_allowed(true);
 }
 
-$platformId = intval($_REQUEST['id']);
+$platformId = (int)$_REQUEST['id'];
 
 $plugin = LtiProviderPlugin::create();
 $em = Database::getManager();
diff --git a/plugin/lti_provider/keys/platform.key b/plugin/lti_provider/keys/platform.key
deleted file mode 100644
index e9198b17ba..0000000000
--- a/plugin/lti_provider/keys/platform.key
+++ /dev/null
@@ -1,27 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIIEowIBAAKCAQEA8osiSa75nmqmakwNNocLA2N2huWM9At/tjSZOFX1r4+PDclS
-zxhMw+ZcgHH+E/05Ec6Vcfd75i8Z+Bxu4ctbYk2FNIvRMN5UgWqxZ5Pf70n8UFxj
-GqdwhUA7/n5KOFoUd9F6wLKa6Oh3OzE6v9+O3y6qL40XhZxNrJjCqxSEkLkOK3xJ
-0J2npuZ59kipDEDZkRTWz3al09wQ0nvAgCc96DGH+jCgy0msA0OZQ9SmDE9CCMbD
-T86ogLugPFCvo5g5zqBBX9Ak3czsuLS6Ni9Wco8ZSxoaCIsPXK0RJpt6Jvbjclqb
-4imsobifxy5LsAV0l/weNWmU2DpzJsLgeK6VVwIDAQABAoIBAQC2R1RUdfjJUrOQ
-rWk8so7XVBfO15NwEXhAkhUYnpmPAF/tZ4EhfMysaWLZcVIW6bbLKCtuRCVMX9ev
-fIbkkLU0ErhqPi3QATcXL/z1r8+bAUprhpNAg9fvfM/ZukXDRged6MPNMC11nseE
-p8HUU4oHNwXVyL6FvmstrHyYoEnkjIiMk34O2MFjAavoIJhM0gkoXVnxRP5MNi1n
-GPVhK+TfZyRri20x1Rh3CsIq36PUyxCICWkD7jftLGqVdQBfuii600LP5v7nuHz9
-LDsCeY7xRJu0eLdDk7/9ukb8fuq6/+3VYMYChYWvpw4DaH8qDHxZfWzMyaI489ma
-l27lhgdxAoGBAPkxH6WuZM/GOowjySuruRjAVyJ4stfe9l/x8MrqnFA2Q8stqK69
-60Y9LDrSaAx7QutvzZ64br2WMlvnGdJw868z4/JmvoAqW3IHUXzqRAHgOk/8Y3ze
-Sjd7t3R0O3v6qAbQjyRYYgfAMZo7PzXW8FKNGsakAedEKW0b94HYndKpAoGBAPkr
-grtARp2nnd1WGuxgQMjX++HjT0p9x7fTMCtfvYhZguU9AlCx53VHFeGc6fqsDkUm
-BFv0dqMnw0TPzEQqLElBIh87TGS4JSXmcbQcejIx+ry2kMFuyMZIPuvZCnLfB/d7
-Qu2DU6mdeIBME/8AX5kBqn1ekddioESdSkHkkif/AoGAaPCeAjjZ7YHuP/wGCOUN
-UvYU+8hWkIAtwyPxIpMAdusTS6oTwlrqjK7QRIk9FhyGhv2TWwcSY7avyHIfNrco
-eBzjHr7T9MdhsTiRwYgqUZvrEqoX/4rhOFJaZKlaL5DUV+JWlZi+18LBYNEYgoTc
-ufcAUqzYvFrBE1jWt5DQjdkCgYATs6sMn1J2GNDUtYA/fITi3KEgBVc5rqRiFqLS
-aymTZHCDK8XJF6gTj+FdC4k8tuoR8aWal8Phtr0r7bpbEXKbADlwesHZnO3jB0uq
-UC4hVe5biZv8j4P0mbXP9ENtPdFlciuimCW/XaIvktRp71+fu4/9hcLGYxgFFOLQ
-PwCHhQKBgGMCxIcueUkLnI9r0KkjtXap9mIgdgERwQPN0Cm9Tx35ZEzRp95kf4C6
-MPsVOwZk5gNvvQngx4iaw9fNYG+PF2yNuDZ+EFwI0vpmGCKRQEke9/VCOFucMsjg
-jMhbU+jrqRIJKisP7MCE1NRhymCPpQf/stEPl0nS5rj+mZJHQEGq
------END RSA PRIVATE KEY-----
\ No newline at end of file
diff --git a/plugin/lti_provider/keys/private.key b/plugin/lti_provider/keys/private.key
deleted file mode 100644
index 4a12a961d0..0000000000
--- a/plugin/lti_provider/keys/private.key
+++ /dev/null
@@ -1,27 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIIEpAIBAAKCAQEAyU64VjSdgPqaQp/iaS8EQsCYMBBKFjevaZGraPWGho3H74OY
-nuTbfeo3T6ufSNpK7aImM6rgsNqh6/FVYKUyNKcD/2AYkfu8gip3zAHJBONhu0NN
-EkyeKx9ugvvrrgiifTDM5JYOyOSYVcVHZhsOASb/+eHvq3VSa/+rbgOnqeq7t2rS
-c+Zt/wTWAtY8OIms6uOr8drbHdvDz4+isxlNTBW06ILDLAUS/gH2PDskPJFwAMbn
-moXGoU3j5IKiWGASNWCbUAfeiTs7XIFR/bxEvs+oGsn6vUnZV9dJR20aTG3hsR0E
-YEVfjzBCBpoK3Jb3RLouLnwkZAteJFmyWqAXAwIDAQABAoIBAEVqnsgjNpjOUbld
-ts48h0SZcyFHzLRimVtW/vufhrcJVwNxpoRMOJ/vzwjrDm8pzyKognHYn8h8a8+X
-lbBQ5sIfQZKjSXW1j+h2yn6Pswi7e+z+JSqFPxlxqkMCqd+GXLm8xTqhwBFoOluB
-PsCn3alqEGTTkzjVqQlSzYOPQRanHWSIqeZ4A5Xs6NbjoGdlV0mJ3GeyvyyoPdl1
-KQoyvVws5xrbHeTgDjLM4Kgp5PShTwlo1Cz2Du34cbUrbcXipS2/77aSM/wBAWuh
-Sq7gsd0iPvd+CeFHcK2+zUwHrksVp+86NgnL/GbcS8Q5tFMDo1GXOg39pJ/PmYVI
-Wp7EoHkCgYEA5r5EA9qCmNkTQdE4kNNl+/zvGdPuzonw7v6356zoET6zntcNcJLC
-EJPPPnipHqLYx2k0URGde1Jywn5xMzJ4hmkj1sPZNfrA5cBjA0T711JnLjOGM6QG
-EdiQN6GnyWGzHPQUGQlaHKe1u4yNP+T19zWqJCaYa1CxjreBRjPQjF0CgYEA31eg
-PNGIPW8SOokVvgd+iI7g2XcYBo7fJX8rDZ+ZA8mSNyYEF2kKECVbfkNMRkEfX2q0
-RUsQyA0JVFVegpVPWsQaRNp1kKQUkh3Qr1jYV/hlwZ+dke7fO6bXNIFoiWDEaIqr
-UEV2XbsCMWAaieoGRKiBMqxIsXVEVw5NytQ/+t8CgYBx7goZOP/4xl4Kxmo+oBKf
-/EB2qT0lf9iVuPFHFAm10hbQW/DH376wfrr6ZotilBejRl/Nk3wFky0UuWfdVpNK
-Eonele8fBwPNrVN2Hs6Wf5pwpoIh52AT2bFDtq7o8TOGHUH7JrH2qhxCUWDA5qVH
-/ZhXpzLk8f/prtPGvPjBBQKBgQDdE3fhu+cIKLH6j0eeWvy9X/DiUijOFQ59p2uO
-iLSGMzkwrcjPA4KaiOAQE72krUHIyW64SJ3L6FubxwVObU2nowX9seE9060pFapE
-Z8V/Drpq9vyaP8Fo4rWTm6VGlyrT8K+zPY71KO/6wA6FBco+nC2HY1JxloqXQelv
-JLpQMQKBgQCucWu6d68jtPARZgXDsCADZIr0rz6kGPbOY3U/td437BaEZuFEERm0
-0rtzbh+JOd0fFPjeOeF2zvXoygKts9eSY4SMIo/0tH+9YniWwlw85Xcez8ryPdGj
-Y9cJsEWTvKKlLo2V0vaYQqNJ3qXW6SZkCkg+rwlfMmhNLrIbx7X2DA==
------END RSA PRIVATE KEY-----
\ No newline at end of file
diff --git a/plugin/lti_provider/keys/public.key b/plugin/lti_provider/keys/public.key
deleted file mode 100644
index eac314ced5..0000000000
--- a/plugin/lti_provider/keys/public.key
+++ /dev/null
@@ -1,9 +0,0 @@
------BEGIN PUBLIC KEY-----
-MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyU64VjSdgPqaQp/iaS8E
-QsCYMBBKFjevaZGraPWGho3H74OYnuTbfeo3T6ufSNpK7aImM6rgsNqh6/FVYKUy
-NKcD/2AYkfu8gip3zAHJBONhu0NNEkyeKx9ugvvrrgiifTDM5JYOyOSYVcVHZhsO
-ASb/+eHvq3VSa/+rbgOnqeq7t2rSc+Zt/wTWAtY8OIms6uOr8drbHdvDz4+isxlN
-TBW06ILDLAUS/gH2PDskPJFwAMbnmoXGoU3j5IKiWGASNWCbUAfeiTs7XIFR/bxE
-vs+oGsn6vUnZV9dJR20aTG3hsR0EYEVfjzBCBpoK3Jb3RLouLnwkZAteJFmyWqAX
-AwIDAQAB
------END PUBLIC KEY-----
\ No newline at end of file
diff --git a/plugin/lti_provider/lang/english.php b/plugin/lti_provider/lang/english.php
index 07ee37bde9..41c23c3781 100644
--- a/plugin/lti_provider/lang/english.php
+++ b/plugin/lti_provider/lang/english.php
@@ -3,8 +3,6 @@
 
 $strings['plugin_title'] = 'LTI 1.3 Advantage Provider';
 $strings['plugin_comment'] = 'Simple application developed as a way to demonstrate how to build an IMS LTI tool provider';
-$plugin_info['version'] = '1.0';
-$plugin_info['author'] = 'Christian Beeznest';
 $strings['description'] = 'The application allows a student inside a course of the platform with external tools which is scored (Assigment and Grade Services) and generating reporting of their members  (NRP Services).
 Here are your LTI connection details to try out this app:';
 $strings['LtiProviderDescription'] = 'First thing you will need is to configure your registration and deployment. To configure your registration
@@ -27,4 +25,7 @@ $strings['kid'] = 'kid';
 $strings['public_key'] = 'Public key';
 $strings['name'] = 'Provider name';
 $strings['enabled'] = 'Enabled';
+$strings['GenerateKeyPairInfo'] = 'A new private and public key pair will be created when enabling.';
+$strings['URLs'] = 'Endpoints Urls';
+$strings['PlatformConnectionAdded'] = 'A platform connection is added.';
 
diff --git a/plugin/lti_provider/lang/french.php b/plugin/lti_provider/lang/french.php
index a6014c2f6f..a2f0201978 100644
--- a/plugin/lti_provider/lang/french.php
+++ b/plugin/lti_provider/lang/french.php
@@ -1,3 +1,30 @@
 <?php
+/* For license terms, see /license.txt */
 
-$strings['HelloPlugin'] = "Salut!";
+$strings['plugin_title'] = 'LTI 1.3 Advantage Provider';
+$strings['plugin_comment'] = 'Une application simple développée pour montrer comment créer un outil IMS LTI';
+$strings['description'] = 'L\'application permet à un étudiant à l\'intérieur d\'un cours de la plate-forme avec des outils externes qui est noté (Services d\'affectation et de notes) et de générer des rapports de leurs membres (Services NRP).
+Voici les détails de votre connexion LTI pour essayer cette application :';
+$strings['LtiProviderDescription'] = 'La première chose dont vous aurez besoin est de configurer votre enregistrement et votre déploiement. Pour configurer votre inscription
+remplissez le formulaire les valeurs requises pour le déploiement dans votre plateforme';
+$strings['ConnectionDetails'] = 'Détails de connexion LTI';
+$strings['AddPlatform'] = 'Ajouter une plateforme client';
+$strings['EditPlatform'] = 'Modifier la plateforme client';
+$strings['PlatformName'] = 'LMS (émetteur)';
+$strings['PlatformEdited'] = 'Détails de la plateforme modifiés';
+$strings['PlatformDeleted'] = 'Plateforme supprimée';
+$strings['client_id'] = 'Client ID';
+$strings['launch_url'] = 'Lancer l\'URL';
+$strings['login_url'] = 'URL de connexion';
+$strings['redirect_url'] = 'URL de redirection';
+$strings['auth_login_url'] = 'URL d\'authentification OIDC';
+$strings['auth_token_url'] = 'URL du jeton d\'accès OAuth2';
+$strings['key_set_url'] = 'URL du jeu de clés';
+$strings['deployment_id'] = 'ID de déploiement';
+$strings['kid'] = 'kid';
+$strings['public_key'] = 'Clé publique';
+$strings['name'] = 'Nom du fournisseur';
+$strings['enabled'] = 'Enabled';
+$strings['GenerateKeyPairInfo'] = 'Une nouvelle paire de clés privée et publique sera créée lors de l\'activation.';
+$strings['URLs'] = 'Endpoints Urls';
+$strings['PlatformConnectionAdded'] = 'Une connexion de plate-forme est ajoutée.';
diff --git a/plugin/lti_provider/lang/spanish.php b/plugin/lti_provider/lang/spanish.php
index a00700c4de..68aa50318d 100644
--- a/plugin/lti_provider/lang/spanish.php
+++ b/plugin/lti_provider/lang/spanish.php
@@ -1,3 +1,30 @@
 <?php
+/* For license terms, see /license.txt */
 
-$strings['HelloPlugin'] = "Hola chaval!";
+$strings['plugin_title'] = 'Proveedor de ventajas LTI 1.3';
+$strings['plugin_comment'] = 'Aplicación simple desarrollada como una forma de demostrar cómo construir un proveedor de herramientas IMS LTI';
+$strings['description'] = 'La aplicación permite a un alumno entrar en un curso de la plataforma con herramientas externas que se puntúan (Assigment and Grade Services) y generar informes de sus miembros (NRP Services).
+Aquí están los detalles de su conexión LTI para probar esta aplicación: ';
+$strings['LtiProviderDescription'] = 'Lo primero que necesitará es configurar su registro y despliegue. Para configurar su registro
+complete el formulario con los valores requeridos para el despliegue en su plataforma ';
+$strings['ConnectionDetails'] = 'Detalles de la conexión LTI';
+$strings['AddPlatform'] = 'Agregar una plataforma de cliente';
+$strings['EditPlatform'] = 'Edite la plataforma del cliente';
+$strings['PlatformName'] = 'LMS (emisor)';
+$strings['PlatformEdited'] = 'Detalles de la plataforma editados';
+$strings['PlatformDeleted'] = 'Plataforma eliminada';
+$strings['client_id'] = 'ID de cliente';
+$strings['launch_url'] = 'URL de lanzamiento';
+$strings['login_url'] = 'URL de inicio de sesión';
+$strings['redirect_url'] = 'URL de redireccionamiento';
+$strings['auth_login_url'] = 'URL de autenticación OIDC';
+$strings['auth_token_url'] = 'URL del token de acceso de OAuth2';
+$strings['key_set_url'] = 'URL del conjunto de claves';
+$strings['deployment_id'] = 'ID de implementación';
+$strings['kid'] = 'Kid';
+$strings['public_key'] = 'Clave pública';
+$strings['name'] = 'Nombre del proveedor';
+$strings['enabled'] = 'Habilitado';
+$strings['GenerateKeyPairInfo'] = 'Se creará un nuevo par de claves pública y privada cuando se habilite.';
+$strings['URLs'] = 'URL de puntos finales';
+$strings['PlatformConnectionAdded'] = 'Se agrega una conexión de plataforma.';
diff --git a/plugin/lti_provider/src/Form/FrmEdit.php b/plugin/lti_provider/src/Form/FrmEdit.php
index 7b871b890f..17792804be 100644
--- a/plugin/lti_provider/src/Form/FrmEdit.php
+++ b/plugin/lti_provider/src/Form/FrmEdit.php
@@ -39,7 +39,7 @@ class FrmEdit extends FormValidator
      */
     public function build($globalMode = true)
     {
-        $plugin = ImsLtiPlugin::create();
+        $plugin = LtiProviderPlugin::create();
         $this->addHeader($plugin->get_lang('ConnectionDetails'));
 
         $this->addText('issuer', $plugin->get_lang('PlatformName'));
diff --git a/plugin/lti_provider/src/LtiProvider.php b/plugin/lti_provider/src/LtiProvider.php
index a77a3a9929..71b6e3c506 100644
--- a/plugin/lti_provider/src/LtiProvider.php
+++ b/plugin/lti_provider/src/LtiProvider.php
@@ -1,9 +1,16 @@
 <?php
 /* For licensing terms, see /license.txt */
 
-use \IMSGlobal\LTI;
-use Chamilo\PluginBundle\Entity\LtiProvider\Platform;
-require_once __DIR__ . '/../db/demo_database.php';
+use Packback\Lti1p3;
+
+require_once __DIR__ . '/../db/lti13_cookie.php';
+require_once __DIR__ . '/../db/lti13_cache.php';
+require_once __DIR__ . '/../db/lti13_database.php';
+
+use Packback\Lti1p3\LtiOidcLogin;
+use Packback\Lti1p3\LtiMessageLaunch;
+
+
 
 /**
  * Class LtiProvider
@@ -15,22 +22,22 @@ class LtiProvider
      * Oidc login and register
      */
     public function login($request = null) {
-        LTI\LTI_OIDC_Login::new(new Demo_Database())
-            ->do_oidc_login_redirect(api_get_path(WEB_PLUGIN_PATH). "lti_provider/web/game.php", $request)
-            ->do_redirect();
+        LtiOidcLogin::new(new Lti13Database, new Lti13Cache(), new Lti13Cookie)
+            ->doOidcLoginRedirect(api_get_path(WEB_PLUGIN_PATH). "lti_provider/web/game.php", $request)
+            ->doRedirect();
     }
 
     /**
      * Lti Message Launch
-     * @param bool $from_cache
-     * @param null $launch_id
+     * @param bool $fromCache
+     * @param null $launchId
      * return $launch
      */
-    public function launch($from_cache = false, $launch_id = null) {
-        if ($from_cache) {
-            $launch = LTI\LTI_Message_Launch::from_cache($launch_id, new Demo_Database());
+    public function launch($fromCache = false, $launchId = null) {
+        if ($fromCache) {
+            $launch = LtiMessageLaunch::fromCache($launchId, new Lti13Database(), new Lti13Cache());
         } else {
-            $launch = LTI\LTI_Message_Launch::new(new Demo_Database())->validate();
+            $launch = LtiMessageLaunch::new(new Lti13Database(), new Lti13Cache(), new Lti13Cookie)->validate();
         }
         return $launch;
     }
diff --git a/plugin/lti_provider/web/api/ags/results.json b/plugin/lti_provider/web/api/ags/results.json
index 5896a022fb..1787425736 100755
--- a/plugin/lti_provider/web/api/ags/results.json
+++ b/plugin/lti_provider/web/api/ags/results.json
@@ -1 +1 @@
-{"CURSO02":{"2":{"score":"2","time":"3","name":"Christian"},"3":{"score":"6","time":"10","name":"Miguel"},"4":{"score":"15","time":"20","name":"Rosa Emerita"}},"CURSOBASE":{"1":{"name":"John","score":"4","time":"6"}},"CURSODECHRISTIAN":{"1":{"name":"Doe admin","score":"5","time":"8"}},"CURSO04":{"2":{"name":"Juan","score":"9","time":"16"}},"CURSO05":{"2":{"name":"Juan","score":"15","time":"22"}}}
\ No newline at end of file
+{"CURSO02":{"2":{"score":"2","time":"3","name":"Christian"},"3":{"score":"6","time":"10","name":"Miguel"},"4":{"score":"15","time":"20","name":"Rosa Emerita"}},"CURSOBASE":{"1":{"name":"John","score":"4","time":"6"}},"CURSODECHRISTIAN":{"1":{"name":"Doe admin","score":"5","time":"8"}},"CURSO04":{"2":{"name":"Juan","score":"9","time":"16"}},"CURSO05":{"2":{"name":"Juan","score":"15","time":"22"}},"CURSO06":{"2":{"name":"Juan","score":"8","time":"10"}}}
\ No newline at end of file
diff --git a/plugin/lti_provider/web/api/score.php b/plugin/lti_provider/web/api/score.php
index 4a4a667a97..9715208d53 100644
--- a/plugin/lti_provider/web/api/score.php
+++ b/plugin/lti_provider/web/api/score.php
@@ -2,29 +2,26 @@
 /* For license terms, see /license.txt */
 
 require_once __DIR__.'/../../../../main/inc/global.inc.php';
-require_once __DIR__ . '/../../vendor/autoload.php';
 require_once __DIR__ . '/../../src/LtiProvider.php';
 
-use \IMSGlobal\LTI;
-
 $launch = LtiProvider::create()->launch(true, $_REQUEST['launch_id']);
 
-if (!$launch->has_ags()) {
-    throw new Exception("Don't have grades!");
+if (!$launch->hasAgs()) {
+    //throw new Exception("Don't have grades!");
 }
 
-$launch_data = $launch->get_launch_data();
-$coursecode = $launch_data['https://purl.imsglobal.org/spec/lti/claim/context']['label'];
-$userid = $launch_data['sub'];
+$launchData = $launch->getLaunchData();
+$coursecode = $launchData['https://purl.imsglobal.org/spec/lti/claim/context']['label'];
+$userid = $launchData['sub'];
 $data = array();
 
-$data_file = __DIR__ . '/ags/results.json';
+$dataFile = __DIR__ . '/ags/results.json';
 
-$data_content = file_get_contents($data_file);
-if (!empty($data_content)) {
-    $data = json_decode($data_content, true);
+$dataContent = file_get_contents($dataFile);
+if (!empty($dataContent)) {
+    $data = json_decode($dataContent, true);
 }
-$data[$coursecode][$userid]['name'] = $launch_data['given_name'];
+$data[$coursecode][$userid]['name'] = $launchData['given_name'];
 if (isset($_REQUEST['score'])) {
     $data[$coursecode][$userid]['score'] = $_REQUEST['score'];
 }
@@ -33,6 +30,10 @@ if (isset($_REQUEST['time'])) {
     $data[$coursecode][$userid]['time'] = $_REQUEST['time'];
 
 }
-file_put_contents($data_file, json_encode($data));
+
+if (file_exists($dataFile)) {
+    @chmod($dataFile,  0775);
+}
+file_put_contents($dataFile, json_encode($data));
 echo '{"success" : true}';
 ?>
diff --git a/plugin/lti_provider/web/api/scoreboard.php b/plugin/lti_provider/web/api/scoreboard.php
index 1ba77b22e9..3b1444cd3e 100644
--- a/plugin/lti_provider/web/api/scoreboard.php
+++ b/plugin/lti_provider/web/api/scoreboard.php
@@ -2,31 +2,29 @@
 /* For license terms, see /license.txt */
 
 require_once __DIR__.'/../../../../main/inc/global.inc.php';
-require_once __DIR__ . '/../../vendor/autoload.php';
 require_once __DIR__ . '/../../src/LtiProvider.php';
-use \IMSGlobal\LTI;
 
 $launch = LtiProvider::create()->launch(true, $_REQUEST['launch_id']);
 
-if (!$launch->has_nrps()) {
+if (!$launch->hasNrps()) {
     //throw new Exception("Don't have names and roles!");
 }
-if (!$launch->has_ags()) {
-    throw new Exception("Don't have grades!");
+if (!$launch->hasAgs()) {
+    //throw new Exception("Don't have grades!");
 }
 
-$launch_data = $launch->get_launch_data();
-$coursecode = $launch_data['https://purl.imsglobal.org/spec/lti/claim/context']['label'];
+$launchData = $launch->getLaunchData();
+$coursecode = $launchData['https://purl.imsglobal.org/spec/lti/claim/context']['label'];
 
-$data_file = __DIR__ . '/ags/results.json';
-$data_content = file_get_contents($data_file);
-if (!empty($data_content)) {
-    $data = json_decode($data_content, true);
+$dataFile = __DIR__ . '/ags/results.json';
+$dataContent = file_get_contents($dataFile);
+if (!empty($dataContent)) {
+    $data = json_decode($dataContent, true);
 }
 
 $scoreboard = [];
-foreach ($data[$coursecode] as $user_id => $member) {
-    $scoreboard[] = array('user_id' => $user_id, 'name' => $member['name'], 'score' => $member['score'], 'time' => $member['time']);
+foreach ($data[$coursecode] as $userId => $member) {
+    $scoreboard[] = array('user_id' => $userId, 'name' => $member['name'], 'score' => $member['score'], 'time' => $member['time']);
 }
 echo json_encode($scoreboard);
 ?>
diff --git a/plugin/lti_provider/web/configure.php b/plugin/lti_provider/web/configure.php
index 9b7cbd1971..b43ef1b54d 100644
--- a/plugin/lti_provider/web/configure.php
+++ b/plugin/lti_provider/web/configure.php
@@ -2,19 +2,19 @@
 /* For license terms, see /license.txt */
 
 require_once __DIR__.'/../../../main/inc/global.inc.php';
-require_once __DIR__ . '/../vendor/autoload.php';
 require_once __DIR__ . '/../src/LtiProvider.php';
-use \IMSGlobal\LTI;
+use Packback\Lti1p3;
 
 $launch = LtiProvider::create()->launch(true, $_REQUEST['launch_id']);
 
-if (!$launch->is_deep_link_launch()) {
+if (!$launch->isDeepLinkLaunch()) {
     throw new Exception("Must be a deep link!");
 }
-$resource = LTI\LTI_Deep_Link_Resource::new()
-    ->set_url(api_get_path(WEB_PLUGIN_PATH)."lti_provider/web/game.php")
-    ->set_custom_params(['difficulty' => $_REQUEST['diff']])
-    ->set_title('Breakout ' . $_REQUEST['diff'] . ' mode!');
 
-$launch->get_deep_link()
-    ->output_response_form([$resource]);
+$resource = LtiDeepLinkResource::new()
+    ->setUrl(api_get_path(WEB_PLUGIN_PATH)."lti_provider/web/game.php")
+    ->setCustomParams(['difficulty' => $_REQUEST['diff']])
+    ->setTitle('Breakout ' . $_REQUEST['diff'] . ' mode!');
+
+$launch->getDeepLink()
+    ->outputResponseForm([$resource]);
diff --git a/plugin/lti_provider/web/game.php b/plugin/lti_provider/web/game.php
index e8925065c7..345bf28f23 100644
--- a/plugin/lti_provider/web/game.php
+++ b/plugin/lti_provider/web/game.php
@@ -2,25 +2,23 @@
 /* For license terms, see /license.txt */
 
 require_once __DIR__.'/../../../main/inc/global.inc.php';
-require_once __DIR__ . '/../vendor/autoload.php';
 require_once __DIR__ . '/../src/LtiProvider.php';
-use \IMSGlobal\LTI;
+use Packback\Lti1p3;
 
 $launch = LtiProvider::create()->launch();
 
-
 $htmlHeadXtra[] = api_get_css(
     api_get_path(WEB_PLUGIN_PATH).'lti_provider/web/static/breakout.css'
 );
 
 $template = new Template('Game demo');
 
-$courseCode = $launch->get_launch_data()['https://purl.imsglobal.org/spec/lti/claim/context']['label'];
+$courseCode = $launch->getLaunchData()['https://purl.imsglobal.org/spec/lti/claim/context']['label'];
 $diff = 'normal';
-if ($launch->is_deep_link_launch()) {
-    $diff = $launch->get_launch_data()['https://purl.imsglobal.org/spec/lti/claim/custom']['difficulty'];
+if ($launch->isDeepLinkLaunch()) {
+    $diff = $launch->getLaunchData()['https://purl.imsglobal.org/spec/lti/claim/custom']['difficulty'];
 }
-$username = $launch->get_launch_data()['given_name'];
+$username = $launch->getLaunchData()['given_name'];
 $template->assign('launch', $launch);
 $template->assign('courseCode', $courseCode);
 $template->assign('diff', $diff);
diff --git a/plugin/lti_provider/web/login.php b/plugin/lti_provider/web/login.php
index dfe391fe77..8af2fbdd0d 100644
--- a/plugin/lti_provider/web/login.php
+++ b/plugin/lti_provider/web/login.php
@@ -2,8 +2,7 @@
 /* For license terms, see /license.txt */
 
 require_once __DIR__.'/../../../main/inc/global.inc.php';
-require_once __DIR__ . '/../vendor/autoload.php';
 require_once __DIR__ . '/../src/LtiProvider.php';
-use \IMSGlobal\LTI;
+use Packback\Lti1p3;
 
 LtiProvider::create()->login($_REQUEST);
diff --git a/plugin/lti_provider/web/view/game.tpl b/plugin/lti_provider/web/view/game.tpl
index 7d526d8028..0cf54a7b67 100644
--- a/plugin/lti_provider/web/view/game.tpl
+++ b/plugin/lti_provider/web/view/game.tpl
@@ -1,11 +1,11 @@
 <link href="https://fonts.googleapis.com/css?family=Gugi" rel="stylesheet">
-{% if launch.is_deep_link_launch %}
+{% if launch.isDeepLinkLaunch %}
     <div class="dl-config">
         <h1>Pick a Difficulty</h1>
         <ul>
-            <li><a href="{{ _p.web_plugin }}lti_provider/web/configure.php?diff=easy&launch_id={{ launch.get_launch_id }}">Easy</a></li>
-            <li><a href="{{ _p.web_plugin }}lti_provider/web/configure.php?diff=normal&launch_id={{ launch.get_launch_id }}">Normal</a></li>
-            <li><a href="{{ _p.web_plugin }}lti_provider/web/configure.php?diff=hard&launch_id={{ launch.get_launch_id }}">Hard</a></li>
+            <li><a href="{{ _p.web_plugin }}lti_provider/web/configure.php?diff=easy&launch_id={{ launch.getLaunchId }}">Easy</a></li>
+            <li><a href="{{ _p.web_plugin }}lti_provider/web/configure.php?diff=normal&launch_id={{ launch.getLaunchId }}">Normal</a></li>
+            <li><a href="{{ _p.web_plugin }}lti_provider/web/configure.php?diff=hard&launch_id={{ launch.getLaunchId }}">Hard</a></li>
         </ul>
     </div>
 {% else %}
@@ -28,7 +28,7 @@
     <script>
       var curr_diff = "{{ diff }}";
       var curr_user_name = "{{ username }}";
-      var launch_id = "{{ launch.get_launch_id }}";
+      var launch_id = "{{ launch.getLaunchId }}";
     </script>
     <script type="text/javascript" src="{{ _p.web_plugin }}lti_provider/web/static/breakout.js" charset="utf-8"></script>