fix XWing algorithm ID

Author: franziskuskiefer

traits/CHANGELOG.md

@@ -5,6 +5,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.4.0] - Unreleased
+
+- [#103](https://github.com/cryspen/hpke-rs/pull/103): Add correct code point for `XWingDraft06` ciphersuite and move old code point to `XWingDraft06Hpke`.
+
 ## [0.3.0] - 2025-07-01
 
 - [#72](https://github.com/cryspen/hpke-rs/pull/72):

traits/src/types.rs

@@ -31,7 +31,14 @@ pub enum KemAlgorithm {
     DhKem448 = 0x0021,
 
     /// X-WING
-    XWingDraft06 = 0x004D,
+    ///
+    /// This is an old code point but with draft 06.
+    XWingDraft06Hpke = 0x004D,
+
+    /// X-WING
+    ///
+    /// <https://datatracker.ietf.org/doc/html/draft-connolly-cfrg-xwing-kem-06>
+    XWingDraft06 = 0x647a,
 }
 
 impl core::fmt::Display for KemAlgorithm {