1 files changed, 8 insertions, 0 deletions
diff --git a/crypto/src/tls/ExtensionType.cs b/crypto/src/tls/ExtensionType.cs
index a1f1fa7e8..f879bd6e1 100644
--- a/crypto/src/tls/ExtensionType.cs
+++ b/crypto/src/tls/ExtensionType.cs
@@ -136,6 +136,11 @@ namespace Org.BouncyCastle.Tls
         public const int key_share = 51;
 
         /*
+         * RFC 9146
+         */
+        public const int connection_id = 54;
+
+        /*
          * RFC 5746 3.2.
          */
         public const int renegotiation_info = 0xff01;
@@ -222,6 +227,8 @@ namespace Org.BouncyCastle.Tls
                 return "signature_algorithms_cert";
             case key_share:
                 return "key_share";
+            case connection_id:
+                return "connection_id";
             case renegotiation_info:
                 return "renegotiation_info";
             default:
@@ -277,6 +284,7 @@ namespace Org.BouncyCastle.Tls
             case post_handshake_auth:
             case signature_algorithms_cert:
             case key_share:
+            case connection_id:
             case renegotiation_info:
                 return true;
             default: