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Update XMSS

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This commit is contained in:
Zhi Guan
2026-01-04 10:04:53 +08:00
parent f5f3b6a5b2
commit 14e4edede7
3 changed files with 1037 additions and 221 deletions
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544
tests/xmsstest.c
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@@ -1,5 +1,5 @@
/*
* Copyright 2014-2025 The GmSSL Project. All Rights Reserved.
* Copyright 2014-2026 The GmSSL Project. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
@@ -31,22 +31,12 @@ static int test_xmss_adrs(void)
adrs_set_hash_address(adrs, 12);
adrs_set_key_and_mask(adrs, 0);
xmss_adrs_print(stderr, 0, 0, "ADRS", adrs);
xmss_adrs_print(stderr, 0, 4, "ADRS", adrs);
printf("%s() ok\n", __FUNCTION__);
return 1;
}
// copy this static function from src/sm3_xmss.c
static void hash256_prf_init(HASH256_CTX *hash256_ctx, const uint8_t key[32])
{
uint8_t hash_id[32] = {0};
hash_id[31] = 3;
hash256_init(hash256_ctx);
hash256_update(hash256_ctx, hash_id, 32);
hash256_update(hash256_ctx, key, 32);
}
#if defined(ENABLE_XMSS_CROSSCHECK) && defined(ENABLE_SHA2)
static int test_wots_derive_sk(void)
@@ -129,49 +119,6 @@ static int test_wots_sk_to_pk(void)
return 1;
}
static int test_wots_derive_root(void)
{
hash256_t secret;
hash256_t seed;
xmss_adrs_t adrs;
hash256_t root;
hash256_t wots_0_root;
hash256_t wots_1023_root;
size_t len;
memset(secret, 0x12, sizeof(hash256_t));
memset(seed, 0xab, sizeof(hash256_t));
hex_to_bytes("7A968C5F9AE4D2B781872B4E6EE851D55CC02F0AB9196701580D6F503D35DB68", 64, wots_0_root, &len);
hex_to_bytes("939E10CD44769D4D9853F7CF5612D6D83B3AA140A8867CCF34A1DBCC66FC4333", 64, wots_1023_root, &len);
// wots index is 0
adrs_set_layer_address(adrs, 0);
adrs_set_tree_address(adrs, 0);
adrs_set_ots_address(adrs, 0);
wots_derive_root(secret, seed, adrs, root);
if (memcmp(root, wots_0_root, sizeof(hash256_t)) != 0) {
error_print();
return -1;
}
// wots index is 1023
adrs_set_layer_address(adrs, 0);
adrs_set_tree_address(adrs, 0);
adrs_set_ots_address(adrs, 1023);
wots_derive_root(secret, seed, adrs, root);
if (memcmp(root, wots_1023_root, sizeof(hash256_t)) != 0) {
error_print();
return -1;
}
printf("%s() ok\n", __FUNCTION__);
return 1;
}
static int test_wots_sign(void)
{
hash256_t secret = {0};
@@ -222,6 +169,82 @@ static int test_wots_sign(void)
return 1;
}
static int test_wots_derive_root(void)
{
hash256_t secret;
hash256_t seed;
xmss_adrs_t adrs;
hash256_t root;
hash256_t wots_0_root;
hash256_t wots_1023_root;
size_t len;
memset(secret, 0x12, sizeof(hash256_t));
memset(seed, 0xab, sizeof(hash256_t));
hex_to_bytes("7A968C5F9AE4D2B781872B4E6EE851D55CC02F0AB9196701580D6F503D35DB68", 64, wots_0_root, &len);
hex_to_bytes("939E10CD44769D4D9853F7CF5612D6D83B3AA140A8867CCF34A1DBCC66FC4333", 64, wots_1023_root, &len);
// wots index is 0
adrs_set_layer_address(adrs, 0);
adrs_set_tree_address(adrs, 0);
adrs_set_ots_address(adrs, 0);
wots_derive_root(secret, seed, adrs, root);
if (memcmp(root, wots_0_root, sizeof(hash256_t)) != 0) {
error_print();
return -1;
}
// wots index is 1023
adrs_set_layer_address(adrs, 0);
adrs_set_tree_address(adrs, 0);
adrs_set_ots_address(adrs, 1023);
wots_derive_root(secret, seed, adrs, root);
if (memcmp(root, wots_1023_root, sizeof(hash256_t)) != 0) {
error_print();
return -1;
}
printf("%s() ok\n", __FUNCTION__);
return 1;
}
static int test_wots_verify(void)
{
uint32_t index = 0;
hash256_t secret;
hash256_t seed;
xmss_adrs_t adrs;
wots_key_t sk;
hash256_t dgst;
wots_sig_t sig;
hash256_t root;
adrs_set_layer_address(adrs, 0);
adrs_set_tree_address(adrs, 0);
adrs_set_type(adrs, XMSS_ADRS_TYPE_OTS);
adrs_set_ots_address(adrs, index);
wots_derive_sk(secret, seed, adrs, sk);
wots_sign(sk, seed, adrs, dgst, sig);
wots_derive_root(secret, seed, adrs, root);
if (wots_verify(root, seed, adrs, dgst, sig) != 1) {
error_print();
return -1;
}
printf("%s() ok\n", __FUNCTION__);
return 1;
}
#endif
static int test_xmss_build_tree(void)
{
hash256_t xmss_secret;
@@ -242,15 +265,46 @@ static int test_xmss_build_tree(void)
xmss_build_tree(xmss_secret, seed, adrs, height, tree);
memcpy(xmss_root, tree[(1 << (height + 1)) - 2], sizeof(hash256_t));
/*
if (memcmp(xmss_root, test_root, sizeof(hash256_t))) {
error_print();
return -1;
}
*/
printf("%s() ok\n", __FUNCTION__);
return 1;
}
static int test_xmss_build_root(void)
{
hash256_t secret;
hash256_t seed;
xmss_adrs_t adrs;
size_t height = 4;
hash256_t tree[(1 << (4+1)) - 1];
hash256_t auth_path[4];
hash256_t root;
uint32_t index;
rand_bytes(secret, sizeof(secret));
rand_bytes(seed, sizeof(seed));
adrs_set_layer_address(adrs, 0);
adrs_set_tree_address(adrs, 0);
xmss_build_tree(secret, seed, adrs, height, tree);
for (index = 0; index < (1 << height); index++) {
xmss_build_auth_path(tree, height, index, auth_path);
xmss_build_root(tree[index], index, seed, adrs, auth_path, height, root);
if (memcmp(root, tree[sizeof(tree)/sizeof(tree[0]) - 1], sizeof(hash256_t)) != 0) {
error_print();
return -1;
}
}
printf("%s() ok\n", __FUNCTION__);
return 1;
}
#endif
static int test_xmss_key_generate(void)
{
@@ -263,14 +317,13 @@ static int test_xmss_key_generate(void)
error_print();
return -1;
}
xmss_public_key_print(stderr, 0, 0, "xmss_public_key", &key);
xmss_private_key_print(stderr, 0, 0, "xmss_private_key", &key);
xmss_public_key_print(stderr, 0, 4, "xmss_public_key", &key);
xmss_private_key_print(stderr, 0, 4, "xmss_private_key", &key);
if (xmss_key_remaining_signs(&key, &count) != 1) {
error_print();
return -1;
}
fprintf(stderr, "xmss_key_remaining_signs: %zu\n", count);
if (count != 1024) {
error_print();
return -1;
@@ -280,7 +333,6 @@ static int test_xmss_key_generate(void)
error_print();
return -1;
}
fprintf(stderr, "xmss_key_remaining_signs: %zu\n", count);
if (count != 1020) {
error_print();
return -1;
@@ -309,7 +361,6 @@ static int test_xmss_key_to_bytes(void)
error_print();
return -1;
}
fprintf(stderr, "xmss_public_key_size : %zu\n", len);
if (len != XMSS_PUBLIC_KEY_SIZE) {
error_print();
return -1;
@@ -319,7 +370,6 @@ static int test_xmss_key_to_bytes(void)
error_print();
return -1;
}
fprintf(stderr, "xmss_private_key_size : %zu\n", len - XMSS_PUBLIC_KEY_SIZE);
if (len != XMSS_PUBLIC_KEY_SIZE + XMSS_PRIVATE_KEY_SIZE) {
error_print();
return -1;
@@ -354,6 +404,21 @@ static int test_xmss_key_to_bytes(void)
return 1;
}
// XMSS_SM3_10_256 2500 bytes
// XMSS_SM3_16_256 2692 bytes
// XMSS_SM3_20_256 2820 bytes
@@ -437,7 +502,7 @@ static int test_xmss_sign(void)
return -1;
}
build_auth_path(key.tree, height, index, sig.auth_path);
xmss_build_auth_path(key.tree, height, index, sig.auth_path);
@@ -459,21 +524,27 @@ static int test_xmss_sign(void)
adrs_set_type(adrs, XMSS_ADRS_TYPE_LTREE);
adrs_set_ltree_address(adrs, index);
wots_build_ltree(sig.wots_sig, key.public_key.seed, adrs, root);
wots_pk_to_root(sig.wots_sig, key.public_key.seed, adrs, root);
// wots_root, index, auth_path => xmss_root
/*
adrs_set_type(adrs, XMSS_ADRS_TYPE_HASHTREE);
adrs_set_padding(adrs, 0);
adrs_set_key_and_mask(adrs, 0);
for (h = 0; h < height; h++) {
int right = index & 1;
index >>= 1;
adrs_set_tree_height(adrs, h);
adrs_set_tree_height(adrs, h + 1);
adrs_set_tree_index(adrs, index);
if (right)
randomized_tree_hash(sig.auth_path[h], root, key.public_key.seed, adrs, root);
else randomized_tree_hash(root, sig.auth_path[h], key.public_key.seed, adrs, root);
}
*/
xmss_build_root(root, index, key.public_key.seed, adrs, sig.auth_path, height, root);
if (memcmp(root, key.public_key.root, sizeof(hash256_t)) != 0) {
error_print();
@@ -571,6 +642,25 @@ static int test_xmssmt_index_to_bytes(void)
return 1;
}
static int test_xmssmt_key_generate(void)
{
uint32_t xmssmt_index = XMSSMT_HASH256_20_4_256;
XMSSMT_KEY key;
if (xmssmt_key_generate(&key, xmssmt_index) != 1) {
error_print();
return -1;
}
xmssmt_public_key_print(stderr, 0, 4, "xmssmt_public_key", &key);
xmssmt_private_key_print(stderr, 0, 4, "xmssmt_private_key", &key);
printf("%s() ok\n", __FUNCTION__);
return 1;
}
static int test_xmssmt_signature_size(void)
{
size_t siglen;
@@ -615,7 +705,7 @@ static int test_xmssmt_signature_print(void)
// print
for (i = 0; i < sizeof(xmssmt_consts)/sizeof(xmssmt_consts[0]); i++) {
xmssmt_signature_print_ex(stderr, 0, 0, "xmssmt_signature", &xmssmt_sig, xmssmt_consts[i].xmssmt_type);
xmssmt_signature_print_ex(stderr, 0, 4, "xmssmt_signature", &xmssmt_sig, xmssmt_consts[i].xmssmt_type);
}
printf("%s() ok\n", __FUNCTION__);
@@ -633,13 +723,11 @@ static int test_xmssmt_signature_to_bytes(void)
memset(&xmssmt_sig, 0, sizeof(xmssmt_sig));
//xmssmt_signature_print_ex(stderr, 0, 0, "xmssmt_signature", &xmssmt_sig, xmssmt_type);
if (xmssmt_signature_to_bytes(&xmssmt_sig, xmssmt_type, &p, &len) != 1) {
error_print();
return -1;
}
xmssmt_signature_print(stderr, 0, 0, "xmssmt_signature", buf, len, xmssmt_type);
xmssmt_signature_print(stderr, 0, 4, "xmssmt_signature", buf, len, xmssmt_type);
if (xmssmt_signature_from_bytes(&xmssmt_sig, xmssmt_type, &cp, &len) != 1) {
error_print();
@@ -655,6 +743,309 @@ static int test_xmssmt_signature_to_bytes(void)
return 1;
}
static int test_xmssmt_private_key_size(void)
{
uint32_t xmssmt_types[] = {
XMSSMT_HASH256_20_2_256,
XMSSMT_HASH256_20_4_256,
XMSSMT_HASH256_40_2_256,
XMSSMT_HASH256_40_4_256,
XMSSMT_HASH256_40_8_256,
XMSSMT_HASH256_60_3_256,
XMSSMT_HASH256_60_6_256,
XMSSMT_HASH256_60_12_256,
};
size_t len;
size_t i;
fprintf(stderr, "xmssmt_private_key_size()\n");
for (i = 0; i < sizeof(xmssmt_types)/sizeof(xmssmt_types[0]); i++) {
if (xmssmt_private_key_size(xmssmt_types[i], &len) != 1) {
error_print();
return -1;
}
fprintf(stderr, "%s: %zu\n", xmssmt_type_name(xmssmt_types[i]), len);
}
printf("%s() ok\n", __FUNCTION__);
return 1;
}
static int test_xmssmt_public_key_to_bytes(void)
{
uint32_t xmssmt_types[] = {
XMSSMT_HASH256_20_2_256,
XMSSMT_HASH256_20_4_256,
XMSSMT_HASH256_40_2_256,
XMSSMT_HASH256_40_4_256,
XMSSMT_HASH256_40_8_256,
XMSSMT_HASH256_60_3_256,
XMSSMT_HASH256_60_6_256,
XMSSMT_HASH256_60_12_256,
};
XMSSMT_KEY key;
uint8_t buf[XMSSMT_PUBLIC_KEY_SIZE];
uint8_t *p = buf;
const uint8_t *cp = buf;
size_t len = 0;
memset(&key, 0, sizeof(key));
key.public_key.xmssmt_type = XMSSMT_HASH256_20_2_256;
if (xmssmt_public_key_to_bytes(&key, &p, &len) != 1) {
error_print();
return -1;
}
if (len != XMSSMT_PUBLIC_KEY_SIZE) {
error_print();
return -1;
}
if (xmssmt_public_key_from_bytes(&key, &cp, &len) != 1) {
error_print();
return -1;
}
if (len) {
error_print();
return -1;
}
printf("%s() ok\n", __FUNCTION__);
return 1;
}
static int test_xmssmt_private_key_to_bytes(void)
{
uint32_t xmssmt_type = XMSSMT_HASH256_20_4_256;
XMSSMT_KEY key;
size_t buflen;
uint8_t *buf = NULL;
uint8_t *p;
const uint8_t *cp;
size_t len = 0;
memset(&key, 0, sizeof(key));
if (xmssmt_private_key_size(xmssmt_type, &buflen) != 1) {
error_print();
return -1;
}
if (!(buf = malloc(buflen))) {
error_print();
return -1;
}
cp = p = buf;
if (xmssmt_key_generate(&key, xmssmt_type) != 1) {
error_print();
return -1;
}
if (xmssmt_private_key_to_bytes(&key, &p, &len) != 1) {
error_print();
return -1;
}
if (len != buflen) {
error_print();
return -1;
}
if (xmssmt_private_key_from_bytes(&key, &cp, &len) != 1) {
error_print();
return -1;
}
if (len) {
fprintf(stderr, "len = %zu\n", len);
error_print();
return -1;
}
printf("%s() ok\n", __FUNCTION__);
return 1;
}
static int test_xmssmt_index(void)
{
printf("%s() ok\n", __FUNCTION__);
return 1;
}
// copy from xmss.c
static uint64_t xmssmt_tree_address(uint64_t index, size_t height, size_t layers, size_t layer) {
return (index >> (height/layers) * (layer + 1));
}
// copy from xmss.c
static uint64_t xmssmt_tree_index(uint64_t index, size_t height, size_t layers, size_t layer) {
return (index >> (height/layers) * layer) % (1 << (height/layers));
}
// reference implementation of xmss^mt sign/verify
static int test_xmssmt_sign(void)
{
static const uint8_t hash256_two[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,
};
static const uint8_t hash256_three[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03,
};
uint32_t xmssmt_type = XMSSMT_HASH256_20_4_256;
size_t height = 0;
size_t layers = 0;
uint8_t msg[100] = {0};
XMSSMT_SIGNATURE xmssmt_sig;
XMSSMT_SIGNATURE *sig = &xmssmt_sig;
XMSSMT_KEY xmssmt_key;
XMSSMT_KEY *key = &xmssmt_key;
XMSSMT_SIGN_CTX xmssmt_ctx;
XMSSMT_SIGN_CTX *ctx = &xmssmt_ctx;
hash256_t dgst;
hash256_t hash256_index;
xmss_adrs_t adrs;
uint64_t tree_address;
uint32_t tree_index;
uint32_t layer;
if (xmssmt_type_to_height_and_layers(xmssmt_type, &height, &layers) != 1) {
error_print();
return -1;
}
// generate key
if (xmssmt_key_generate(key, xmssmt_type) != 1) {
error_print();
return -1;
}
xmssmt_private_key_print(stderr, 0, 4, "xmssmt_private_key", key);
// init sign ctx
memset(ctx, 0, sizeof(XMSSMT_SIGN_CTX));
// set ctx->xmssmt_public_key
ctx->xmssmt_public_key = key->public_key;
// set ctx->xmssmt_sig
// XMSSMT_SIGNATURE:
// uint64_t index
// hash256_t random
// wots_sig_t wots_sigs[layers];
// hash256_t auth_path[height/layers]
// copy index
ctx->xmssmt_sig.index = key->index;
// copy wots_sigs[1] to wots_sig[layers - 1] from key
for (layer = 1; layer < layers; layer++) {
memcpy(ctx->xmssmt_sig.wots_sigs[layer], key->wots_sigs[layer - 1], sizeof(wots_sig_t));
}
// build auth_path
for (layer = 0; layer < layers; layer++) {
uint32_t tree_index = xmssmt_tree_index(ctx->xmssmt_sig.index, height, layers, layer);
hash256_t *tree = key->trees + xmss_tree_num_nodes(height/layers) * layer;
hash256_t *auth_path = ctx->xmssmt_sig.auth_path + (height/layers) * layer;
xmss_build_auth_path(tree, height/layers, tree_index, auth_path);
}
// derive ctx->xmssmt_sig.random
memset(hash256_index, 0, 24);
PUTU64(hash256_index + 24, ctx->xmssmt_sig.index);
hash256_init(&ctx->hash256_ctx);
hash256_update(&ctx->hash256_ctx, hash256_three, sizeof(hash256_t));
hash256_update(&ctx->hash256_ctx, key->sk_prf, sizeof(hash256_t));
hash256_update(&ctx->hash256_ctx, hash256_index, sizeof(hash256_t));
hash256_finish(&ctx->hash256_ctx, ctx->xmssmt_sig.random);
// derive wots_sk and save to wots_sigs[0]
layer = 0;
tree_address = xmssmt_tree_address(ctx->xmssmt_sig.index, height, layers, layer);
tree_index = xmssmt_tree_index(ctx->xmssmt_sig.index, height, layers, layer);
adrs_set_layer_address(adrs, layer);
adrs_set_tree_address(adrs, tree_address);
adrs_set_type(adrs, XMSS_ADRS_TYPE_OTS);
adrs_set_ots_address(adrs, tree_index);
wots_derive_sk(key->secret, key->public_key.seed, adrs, ctx->xmssmt_sig.wots_sigs[0]);
// H_msg(M) := HASH256(toByte(2, 32) || r || XMSS_ROOT || toByte(idx_sig, 32) || M)
hash256_init(&ctx->hash256_ctx);
hash256_update(&ctx->hash256_ctx, hash256_two, sizeof(hash256_t));
hash256_update(&ctx->hash256_ctx, ctx->xmssmt_sig.random, sizeof(hash256_t));
hash256_update(&ctx->hash256_ctx, key->public_key.root, sizeof(hash256_t));
hash256_update(&ctx->hash256_ctx, hash256_index, sizeof(hash256_t));
hash256_finish(&ctx->hash256_ctx, dgst);
// generate message wots_sig as wots_sigs[0]
layer = 0;
tree_address = xmssmt_tree_address(ctx->xmssmt_sig.index, height, layers, layer);
tree_index = xmssmt_tree_index(ctx->xmssmt_sig.index, height, layers, layer);
adrs_set_layer_address(adrs, layer);
adrs_set_tree_address(adrs, tree_address);
adrs_set_type(adrs, XMSS_ADRS_TYPE_OTS);
adrs_set_ots_address(adrs, tree_index);
wots_sign(ctx->xmssmt_sig.wots_sigs[0], ctx->xmssmt_public_key.seed, adrs, dgst,
ctx->xmssmt_sig.wots_sigs[0]);
xmssmt_signature_print_ex(stderr, 0, 4, "xmssmt_signature", &ctx->xmssmt_sig, xmssmt_type);
// verify
for (layer = 0; layer < layers; layer++) {
uint64_t tree_address = xmssmt_tree_address(ctx->xmssmt_sig.index, height, layers, layer);
uint32_t tree_index = xmssmt_tree_index(ctx->xmssmt_sig.index, height, layers, layer);
wots_key_t wots_pk;
// wots_sig, dgst => wots_pk
adrs_set_layer_address(adrs, layer);
adrs_set_tree_address(adrs, tree_address);
adrs_set_type(adrs, XMSS_ADRS_TYPE_OTS);
adrs_set_ots_address(adrs, tree_index);
wots_sig_to_pk(ctx->xmssmt_sig.wots_sigs[layer], ctx->xmssmt_public_key.seed, adrs, dgst, wots_pk);
// wots_pk => wots_root
adrs_set_type(adrs, XMSS_ADRS_TYPE_LTREE);
adrs_set_ltree_address(adrs, tree_index);
wots_pk_to_root(wots_pk, ctx->xmssmt_public_key.seed, adrs, dgst);
// wots_root, auth_path => xmss_root (as dgst)
adrs_set_type(adrs, XMSS_ADRS_TYPE_HASHTREE);
adrs_set_padding(adrs, 0);
xmss_build_root(dgst, tree_index,
ctx->xmssmt_public_key.seed, adrs,
ctx->xmssmt_sig.auth_path + (height/layers) * layer, height/layers,
dgst);
}
// verify xmssmt_root (save in dgst)
if (memcmp(dgst, ctx->xmssmt_public_key.root, sizeof(hash256_t)) != 0) {
error_print();
return -1;
}
printf("%s() ok\n", __FUNCTION__);
return 1;
}
int main(void)
{
@@ -663,18 +1054,29 @@ int main(void)
if (test_wots_sk_to_pk() != 1) goto err;
if (test_wots_sign() != 1) goto err;
if (test_wots_derive_root() != 1) goto err;
if (test_xmss_build_tree() != 1) goto err;
if (test_wots_verify() != 1) goto err;
#endif
if (test_xmss_adrs() != 1) goto err;
if (test_xmss_build_tree() != 1) goto err;
if (test_xmss_build_root() != 1) goto err;
if (test_xmss_key_generate() != 1) goto err;
if (test_xmss_key_to_bytes() != 1) goto err;
if (test_xmss_signature_size() != 1) goto err;
if (test_xmss_sign() != 1) goto err;
if (test_xmss_sign_init() != 1) goto err;
if (test_xmssmt_key_generate() != 1) goto err;
if (test_xmssmt_index_to_bytes() != 1) goto err;
if (test_xmssmt_signature_size() != 1) goto err;
if (test_xmssmt_signature_to_bytes() != 1) goto err;
if (test_xmssmt_signature_size() != 1) goto err;
if (test_xmssmt_signature_print() != 1) goto err;
if (test_xmssmt_private_key_size() != 1) goto err;
if (test_xmssmt_public_key_to_bytes() != 1) goto err;
if (test_xmssmt_private_key_to_bytes() != 1) goto err;
if (test_xmssmt_sign() != 1) goto err;
printf("%s all tests passed\n", __FILE__);
return 0;
err: