diff --git a/src/Encryption.php b/src/Encryption.php
index 4fc46d6..41778ed 100644
--- a/src/Encryption.php
+++ b/src/Encryption.php
@@ -98,6 +98,7 @@ public function getAvailableMethods(): array
                     'camellia-192-cbc-cts',
                     'camellia-256-cbc-cts',
                     'null',
+                    'sm4-xts',
                     '0.3.4401.5.3.1.9.1',
                     '0.3.4401.5.3.1.9.21',
                     '0.3.4401.5.3.1.9.41',
@@ -110,6 +111,7 @@ public function getAvailableMethods(): array
                     '1.2.410.200046.1.1.38',
                     '1.2.410.200046.1.1.39',
                     '1.2.410.200046.1.1.6',
+                    '1.2.156.10197.1.104.10',
                     '1.2.840.113549.1.9.16.3.6',
                     '1.3.14.3.2.17',
                     '2.16.840.1.101.3.4.1.1',