===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/ssh/ssh-xmss.c,v
retrieving revision 1.7
retrieving revision 1.8
diff -u -r1.7 -r1.8
--- src/usr.bin/ssh/ssh-xmss.c	2022/10/28 00:36:31	1.7
+++ src/usr.bin/ssh/ssh-xmss.c	2022/10/28 00:37:24	1.8
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssh-xmss.c,v 1.7 2022/10/28 00:36:31 djm Exp $*/
+/* $OpenBSD: ssh-xmss.c,v 1.8 2022/10/28 00:37:24 djm Exp $*/
 /*
  * Copyright (c) 2017 Stefan-Lukas Gazdag.
  * Copyright (c) 2017 Markus Friedl.
@@ -60,6 +60,25 @@
 	return 1;
 }
 
+static int
+ssh_xmss_serialize_public(const struct sshkey *key, struct sshbuf *b,
+    const char *typename, enum sshkey_serialize_rep opts)
+{
+	int r;
+
+	if (key->xmss_name == NULL || key->xmss_pk == NULL ||
+	    sshkey_xmss_pklen(key) == 0)
+		return SSH_ERR_INVALID_ARGUMENT;
+	if ((r = sshbuf_put_cstring(b, typename)) != 0 ||
+	    (r = sshbuf_put_cstring(b, key->xmss_name)) != 0 ||
+	    (r = sshbuf_put_string(b, key->xmss_pk,
+	    sshkey_xmss_pklen(key))) != 0 ||
+	    (r = sshkey_xmss_serialize_pk_info(key, b, opts)) != 0)
+		return r;
+
+	return 0;
+}
+
 int
 ssh_xmss_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
     const u_char *data, size_t datalen, u_int compat)
@@ -213,6 +232,7 @@
 	/* .alloc = */		NULL,
 	/* .cleanup = */	ssh_xmss_cleanup,
 	/* .equal = */		ssh_xmss_equal,
+	/* .ssh_serialize_public = */ ssh_xmss_serialize_public,
 };
 
 const struct sshkey_impl sshkey_xmss_impl = {