/* ext_xmss.h

*

* Copyright (C) 2006-2025 wolfSSL Inc.

*

* This file is part of wolfSSL.

*

* wolfSSL is free software; you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation; either version 3 of the License, or

* (at your option) any later version.

*

* wolfSSL is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program; if not, write to the Free Software

* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA

*/

#ifndef EXT_XMSS_H

#define EXT_XMSS_H

#if defined(WOLFSSL_HAVE_XMSS) && defined(HAVE_LIBXMSS)

#include <wolfssl/wolfcrypt/xmss.h>

#include <xmss.h>

#include <params.h>

#if defined(WOLFSSL_WC_XMSS)

#error "This code is incompatible with wolfCrypt's implementation of XMSS."

#endif

struct XmssKey {

unsigned char pk[XMSS_SHA256_PUBLEN];

word32 oid;

int is_xmssmt;

xmss_params params;

#ifndef WOLFSSL_XMSS_VERIFY_ONLY

/* The secret key length is a function of xmss_params. */

unsigned char * sk;

word32 sk_len;

wc_xmss_write_private_key_cb write_private_key; /* Callback to write/update key. */

wc_xmss_read_private_key_cb read_private_key; /* Callback to read key. */

void * context; /* Context arg passed to callbacks. */

#endif /* ifndef WOLFSSL_XMSS_VERIFY_ONLY */

enum wc_XmssState state;

};

#endif /* WOLFSSL_HAVE_XMSS */

#endif /* EXT_XMSS_H */