ECP: add Curve448 to ecp_supported_curves
diff --git a/library/ecp.c b/library/ecp.c
index c7f54a1..8ee517e 100644
--- a/library/ecp.c
+++ b/library/ecp.c
@@ -366,7 +366,7 @@
 /*
  * List of supported curves:
  *  - internal ID
- *  - TLS NamedCurve ID (RFC 4492 sec. 5.1.1, RFC 7071 sec. 2)
+ *  - TLS NamedCurve ID (RFC 4492 sec. 5.1.1, RFC 7071 sec. 2, RFC 8446 sec. 4.2.7)
  *  - size in bits
  *  - readable name
  *
@@ -413,6 +413,9 @@
 #if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
     { MBEDTLS_ECP_DP_CURVE25519,   29,     256,    "x25519"            },
 #endif
+#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
+    { MBEDTLS_ECP_DP_CURVE448,     30,     448,    "x448"              },
+#endif
     { MBEDTLS_ECP_DP_NONE,          0,     0,      NULL                },
 };