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Update LMS/HSS

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Set SHA-256/SM3 independently.
This commit is contained in:
Zhi Guan
2026-01-15 18:27:20 +08:00
parent 02d3d0224e
commit a212b17099
3 changed files with 202 additions and 178 deletions
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71
include/gmssl/lms.h
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@@ -15,7 +15,6 @@
#include <string.h>
#include <stdint.h>
#include <gmssl/sm3.h>
#include <gmssl/hash256.h>
#ifdef ENABLE_SHA2
#include <gmssl/sha2.h>
#endif
@@ -30,12 +29,24 @@ extern "C" {
#define LMS_MAX_HEIGHT 25
typedef uint8_t lms_hash256_t[32];
// Crosscheck with data from LMS-reference (SHA-256), except the LMS signature.
#if defined(ENABLE_LMS_CROSSCHECK) && defined(ENABLE_SHA2) && !defined(LMS_HASH256_CTX)
# define LMS_HASH256_CTX SHA256_CTX
# define lms_hash256_init sha256_init
# define lms_hash256_update sha256_update
# define lms_hash256_finish sha256_finish
#else
# define LMS_HASH256_CTX SM3_CTX
# define lms_hash256_init sm3_init
# define lms_hash256_update sm3_update
# define lms_hash256_finish sm3_finish
#endif
#if defined(ENABLE_LMS_CROSSCHECK) && defined(ENABLE_SHA2)
# define HASH256_CTX SHA256_CTX
# define hash256_init sha256_init
# define hash256_update sha256_update
# define hash256_finish sha256_finish
# define LMOTS_HASH256_N32_W8 LMOTS_SHA256_N32_W8
# define LMOTS_HASH256_N32_W8_NAME "LMOTS_SHA256_N32_W8"
# define LMS_HASH256_M32_H5 LMS_SHA256_M32_H5
@@ -49,10 +60,6 @@ extern "C" {
# define LMS_HASH256_M32_H20_NAME "LMS_SHA256_M32_H20"
# define LMS_HASH256_M32_H25_NAME "LMS_SHA256_M32_H25"
#else
# define HASH256_CTX SM3_CTX
# define hash256_init sm3_init
# define hash256_update sm3_update
# define hash256_finish sm3_finish
# define LMOTS_HASH256_N32_W8 LMOTS_SM3_N32_W8
# define LMOTS_HASH256_N32_W8_NAME "LMOTS_SM3_N32_W8"
# define LMS_HASH256_M32_H5 LMS_SM3_M32_H5
@@ -67,6 +74,7 @@ extern "C" {
# define LMS_HASH256_M32_H25_NAME "LMS_SM3_M32_H25"
#endif
enum {
LMOTS_RESERVED = 0,
LMOTS_SHA256_N32_W1 = 1,
@@ -98,50 +106,51 @@ enum {
char *lmots_type_name(int lmots_type);
void lmots_derive_secrets(const hash256_t seed, const uint8_t I[16], int q, hash256_t x[34]);
void lmots_secrets_to_public_hash(const uint8_t I[16], int q, const hash256_t x[34], hash256_t pub);
void lmots_compute_signature(const uint8_t I[16], int q, const hash256_t dgst, const hash256_t x[34], hash256_t y[34]);
void lmots_signature_to_public_hash(const uint8_t I[16], int q, const hash256_t y[34], const hash256_t dgst, hash256_t pub);
void lmots_derive_secrets(const lms_hash256_t seed, const uint8_t I[16], int q, lms_hash256_t x[34]);
void lmots_secrets_to_public_hash(const uint8_t I[16], int q, const lms_hash256_t x[34], lms_hash256_t pub);
void lmots_compute_signature(const uint8_t I[16], int q, const lms_hash256_t dgst, const lms_hash256_t x[34], lms_hash256_t y[34]);
void lmots_signature_to_public_hash(const uint8_t I[16], int q, const lms_hash256_t y[34], const lms_hash256_t dgst, lms_hash256_t pub);
char *lms_type_name(int lms_type);
int lms_type_from_name(const char *name);
int lms_type_to_height(int type, size_t *height);
void lms_derive_merkle_tree(const hash256_t seed, const uint8_t I[16], int height, hash256_t *tree);
void lms_derive_merkle_root(const hash256_t seed, const uint8_t I[16], int height, hash256_t root);
void lms_derive_merkle_tree(const lms_hash256_t seed, const uint8_t I[16], int height, lms_hash256_t *tree);
void lms_derive_merkle_root(const lms_hash256_t seed, const uint8_t I[16], int height, lms_hash256_t root);
typedef struct {
int lms_type;
int lmots_type;
uint8_t I[16]; // lms key identifier
hash256_t root; // merkle tree root
lms_hash256_t root; // merkle tree root
} LMS_PUBLIC_KEY;
#define LMS_PUBLIC_KEY_SIZE (4 + 4 + 16 + 32) // = 56 bytes
typedef struct {
LMS_PUBLIC_KEY public_key;
hash256_t *tree;
hash256_t seed;
uint32_t q; // in [0, 2^h - 1], q++ after every sign
lms_hash256_t *tree;
lms_hash256_t seed;
uint32_t q; // in [0, 2^h - 1], q++ after every sign // 应该改为index
} LMS_KEY;
#define LMS_PRIVATE_KEY_SIZE (LMS_PUBLIC_KEY_SIZE + 32 + 4) // = 92 bytes
// FIXME: do we need a function to update lms_key->q ?
int lms_key_generate_ex(LMS_KEY *key, int lms_type, const hash256_t seed, const uint8_t I[16], int cache_tree);
int lms_key_generate_ex(LMS_KEY *key, int lms_type, const lms_hash256_t seed, const uint8_t I[16], int cache_tree);
int lms_key_generate(LMS_KEY *key, int lms_type);
int lms_key_check(const LMS_KEY *key, const LMS_PUBLIC_KEY *pub);
int lms_key_remaining_signs(const LMS_KEY *key, size_t *count);
int lms_public_key_to_bytes(const LMS_KEY *key, uint8_t **out, size_t *outlen);
int lms_public_key_from_bytes_ex(const LMS_PUBLIC_KEY **key, const uint8_t **in, size_t *inlen);
int lms_public_key_from_bytes_ex(const LMS_PUBLIC_KEY **key, const uint8_t **in, size_t *inlen); // 这个函数需要修改
int lms_public_key_from_bytes(LMS_KEY *key, const uint8_t **in, size_t *inlen);
int lms_private_key_to_bytes(const LMS_KEY *key, uint8_t **out, size_t *outlen);
int lms_private_key_from_bytes(LMS_KEY *key, const uint8_t **in, size_t *inlen);
int lms_public_key_print(FILE *fp, int fmt, int ind, const char *label, const LMS_PUBLIC_KEY *pub);
int lms_key_print(FILE *fp, int fmt, int ind, const char *label, const LMS_KEY *key);
int lms_key_print(FILE *fp, int fmt, int ind, const char *label, const LMS_KEY *key); //
void lms_key_cleanup(LMS_KEY *key);
@@ -150,11 +159,11 @@ typedef struct {
int q; // index of LMS tree leaf, in [0, 2^h - 1]
struct {
int lmots_type; // LMOTS_SM3_N32_W8 or LMOTS_SHA256_N32_W8 in compile time
hash256_t C; // randomness of every LMOTS signature
hash256_t y[34]; // for w = 8 and hash256, 34 winternitz chains
lms_hash256_t C; // randomness of every LMOTS signature
lms_hash256_t y[34]; // for w = 8 and hash256, 34 winternitz chains
} lmots_sig;
int lms_type;
hash256_t path[25]; // max tree height = 25 when LMS_SM3_M32_H25
lms_hash256_t path[25]; // max tree height = 25 when LMS_SM3_M32_H25
} LMS_SIGNATURE;
// encoded size, SHOULD be changed when supporting text/der encoding
@@ -163,8 +172,8 @@ typedef struct {
int lms_signature_to_merkle_root(const uint8_t I[16], size_t h, int q,
const hash256_t y[34], const hash256_t *path,
const hash256_t dgst, hash256_t root);
const lms_hash256_t y[34], const lms_hash256_t *path,
const lms_hash256_t dgst, lms_hash256_t root);
/*
@@ -178,22 +187,22 @@ int lms_signature_size(int lms_type, size_t *siglen);
int lms_key_get_signature_size(const LMS_KEY *key, size_t *siglen);
int lms_signature_to_bytes(const LMS_SIGNATURE *sig, uint8_t **out, size_t *outlen);
int lms_signature_from_bytes_ex(const LMS_SIGNATURE **sig, size_t *siglen, const uint8_t **in, size_t *inlen);
int lms_signature_from_bytes_ex(const LMS_SIGNATURE **sig, size_t *siglen, const uint8_t **in, size_t *inlen);// 这个接口有点奇怪，siglen?
int lms_signature_from_bytes(LMS_SIGNATURE *sig, const uint8_t **in, size_t *inlen);
int lms_signature_print_ex(FILE *fp, int fmt, int ind, const char *label, const LMS_SIGNATURE *sig);
int lms_signature_print(FILE *fp, int fmt, int ind, const char *label, const uint8_t *sig, size_t siglen);
typedef struct {
HASH256_CTX hash256_ctx;
LMS_HASH256_CTX lms_hash256_ctx;
LMS_PUBLIC_KEY lms_public_key; // FIXME: or use LMS_PUBLIC_KEY to re-use tree?
LMS_SIGNATURE lms_sig;
} LMS_SIGN_CTX;
int lms_sign_init(LMS_SIGN_CTX *ctx, LMS_KEY *key);
int lms_sign_update(LMS_SIGN_CTX *ctx, const uint8_t *data, size_t datalen);
int lms_sign_finish(LMS_SIGN_CTX *ctx, uint8_t *sig, size_t *siglen);
int lms_sign_finish_ex(LMS_SIGN_CTX *ctx, LMS_SIGNATURE *sig);
int lms_sign_finish(LMS_SIGN_CTX *ctx, uint8_t *sig, size_t *siglen);
int lms_verify_init_ex(LMS_SIGN_CTX *ctx, const LMS_KEY *key, const LMS_SIGNATURE *sig);
int lms_verify_init(LMS_SIGN_CTX *ctx, const LMS_KEY *key, const uint8_t *sigbuf, size_t siglen);
int lms_verify_update(LMS_SIGN_CTX *ctx, const uint8_t *data, size_t datalen);
@@ -204,13 +213,11 @@ int lms_verify_finish(LMS_SIGN_CTX *ctx);
void lms_sign_ctx_cleanup(LMS_SIGN_CTX *ctx);
/*
// just for reference, HSS_PUBLIC_KEY memory layout might not compatible with HSS_KEY
typedef struct {
uint32_t levels;
LMS_PUBLIC_KEY lms_public_key;
} HSS_PUBLIC_KEY;
*/
// HSS_PUBLIC_KEY: { level, lms_key[0].public_key }
#define HSS_PUBLIC_KEY_SIZE (4 + LMS_PUBLIC_KEY_SIZE)