From b55b40558210e9993775c9c5f1988c08d0e050e8 Mon Sep 17 00:00:00 2001
From: Eric Tendian <erictendian@gmail.com>
Date: Wed, 25 Mar 2020 14:20:30 -0500
Subject: [PATCH 1/2] Switching to upstream version of JWT package with JWK
 classes added

---
 composer.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/composer.json b/composer.json
index 804cdc3b..9efabab0 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,7 @@
     "name": "imsglobal/lti-1p3-tool",
     "type": "library",
     "require": {
-        "fproject/php-jwt": "^4.0",
+        "firebase/php-jwt": "^5.2",
         "phpseclib/phpseclib": "^2.0"
     },
     "autoload": {

From 1ade7d5aa53a8d17540c6e5be1c67019aecd2c8c Mon Sep 17 00:00:00 2001
From: Eric Tendian <erictendian@gmail.com>
Date: Wed, 25 Mar 2020 14:37:47 -0500
Subject: [PATCH 2/2] Switch from JWK::parseKey to JWK::parseKeySet now that
 the former is private

---
 src/lti/LTI_Message_Launch.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/lti/LTI_Message_Launch.php b/src/lti/LTI_Message_Launch.php
index 5dd9b6f1..0ce94331 100644
--- a/src/lti/LTI_Message_Launch.php
+++ b/src/lti/LTI_Message_Launch.php
@@ -191,7 +191,11 @@ private function get_public_key() {
         foreach ($public_key_set['keys'] as $key) {
             if ($key['kid'] == $this->jwt['header']['kid']) {
                 try {
-                    return openssl_pkey_get_details(JWK::parseKey($key));
+                    return openssl_pkey_get_details(
+                        JWK::parseKeySet([
+                            'keys' => [$key]
+                        ])[$key['kid']]
+                    );
                 } catch(\Exception $e) {
                     return false;
                 }