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Update SM2

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This commit is contained in:
Zhi Guan
2024-03-10 22:34:43 +08:00
parent cfdcd0c0e3
commit 33baa3df92
15 changed files with 2410 additions and 268 deletions
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136
include/gmssl/sm2.h
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@@ -15,113 +15,15 @@
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <gmssl/sm3.h>
#include <gmssl/api.h>
#include <gmssl/sm3.h>
#include <gmssl/sm2_z256.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef uint64_t SM2_BN[8];
int sm2_bn_is_zero(const SM2_BN a);
int sm2_bn_is_one(const SM2_BN a);
int sm2_bn_is_odd(const SM2_BN a);
int sm2_bn_cmp(const SM2_BN a, const SM2_BN b);
int sm2_bn_from_hex(SM2_BN r, const char hex[64]);
int sm2_bn_from_asn1_integer(SM2_BN r, const uint8_t *d, size_t dlen);
int sm2_bn_equ_hex(const SM2_BN a, const char *hex);
int sm2_bn_print(FILE *fp, int fmt, int ind, const char *label, const SM2_BN a);
int sm2_bn_rshift(SM2_BN ret, const SM2_BN a, unsigned int nbits);
void sm2_bn_to_bytes(const SM2_BN a, uint8_t out[32]);
void sm2_bn_from_bytes(SM2_BN r, const uint8_t in[32]);
void sm2_bn_to_hex(const SM2_BN a, char hex[64]);
void sm2_bn_to_bits(const SM2_BN a, char bits[256]);
void sm2_bn_set_word(SM2_BN r, uint32_t a);
void sm2_bn_add(SM2_BN r, const SM2_BN a, const SM2_BN b);
void sm2_bn_sub(SM2_BN ret, const SM2_BN a, const SM2_BN b);
int sm2_bn_rand_range(SM2_BN r, const SM2_BN range);
#define sm2_bn_init(r) memset((r),0,sizeof(SM2_BN))
#define sm2_bn_set_zero(r) memset((r),0,sizeof(SM2_BN))
#define sm2_bn_set_one(r) sm2_bn_set_word((r),1)
#define sm2_bn_copy(r,a) memcpy((r),(a),sizeof(SM2_BN))
#define sm2_bn_clean(r) memset((r),0,sizeof(SM2_BN))
// GF(p)
typedef SM2_BN SM2_Fp;
void sm2_fp_add(SM2_Fp r, const SM2_Fp a, const SM2_Fp b);
void sm2_fp_sub(SM2_Fp r, const SM2_Fp a, const SM2_Fp b);
void sm2_fp_mul(SM2_Fp r, const SM2_Fp a, const SM2_Fp b);
void sm2_fp_exp(SM2_Fp r, const SM2_Fp a, const SM2_Fp e);
void sm2_fp_dbl(SM2_Fp r, const SM2_Fp a);
void sm2_fp_tri(SM2_Fp r, const SM2_Fp a);
void sm2_fp_div2(SM2_Fp r, const SM2_Fp a);
void sm2_fp_neg(SM2_Fp r, const SM2_Fp a);
void sm2_fp_sqr(SM2_Fp r, const SM2_Fp a);
void sm2_fp_inv(SM2_Fp r, const SM2_Fp a);
int sm2_fp_rand(SM2_Fp r);
int sm2_fp_sqrt(SM2_Fp r, const SM2_Fp a);
#define sm2_fp_init(r) sm2_bn_init(r)
#define sm2_fp_set_zero(r) sm2_bn_set_zero(r)
#define sm2_fp_set_one(r) sm2_bn_set_one(r)
#define sm2_fp_copy(r,a) sm2_bn_copy(r,a)
#define sm2_fp_clean(r) sm2_bn_clean(r)
// GF(n)
typedef SM2_BN SM2_Fn;
void sm2_fn_add(SM2_Fn r, const SM2_Fn a, const SM2_Fn b);
void sm2_fn_sub(SM2_Fn r, const SM2_Fn a, const SM2_Fn b);
void sm2_fn_mul(SM2_Fn r, const SM2_Fn a, const SM2_Fn b);
void sm2_fn_mul_word(SM2_Fn r, const SM2_Fn a, uint32_t b);
void sm2_fn_exp(SM2_Fn r, const SM2_Fn a, const SM2_Fn e);
void sm2_fn_neg(SM2_Fn r, const SM2_Fn a);
void sm2_fn_sqr(SM2_Fn r, const SM2_Fn a);
void sm2_fn_inv(SM2_Fn r, const SM2_Fn a);
int sm2_fn_rand(SM2_Fn r);
#define sm2_fn_init(r) sm2_bn_init(r)
#define sm2_fn_set_zero(r) sm2_bn_set_zero(r)
#define sm2_fn_set_one(r) sm2_bn_set_one(r)
#define sm2_fn_copy(r,a) sm2_bn_copy(r,a)
#define sm2_fn_clean(r) sm2_bn_clean(r)
typedef struct {
SM2_BN X;
SM2_BN Y;
SM2_BN Z;
} SM2_JACOBIAN_POINT;
void sm2_jacobian_point_init(SM2_JACOBIAN_POINT *R);
void sm2_jacobian_point_set_xy(SM2_JACOBIAN_POINT *R, const SM2_BN x, const SM2_BN y);
void sm2_jacobian_point_get_xy(const SM2_JACOBIAN_POINT *P, SM2_BN x, SM2_BN y);
void sm2_jacobian_point_neg(SM2_JACOBIAN_POINT *R, const SM2_JACOBIAN_POINT *P);
void sm2_jacobian_point_dbl(SM2_JACOBIAN_POINT *R, const SM2_JACOBIAN_POINT *P);
void sm2_jacobian_point_add(SM2_JACOBIAN_POINT *R, const SM2_JACOBIAN_POINT *P, const SM2_JACOBIAN_POINT *Q);
void sm2_jacobian_point_sub(SM2_JACOBIAN_POINT *R, const SM2_JACOBIAN_POINT *P, const SM2_JACOBIAN_POINT *Q);
void sm2_jacobian_point_mul(SM2_JACOBIAN_POINT *R, const SM2_BN k, const SM2_JACOBIAN_POINT *P);
void sm2_jacobian_point_to_bytes(const SM2_JACOBIAN_POINT *P, uint8_t out[64]);
void sm2_jacobian_point_from_bytes(SM2_JACOBIAN_POINT *P, const uint8_t in[64]);
void sm2_jacobian_point_mul_generator(SM2_JACOBIAN_POINT *R, const SM2_BN k);
void sm2_jacobian_point_mul_sum(SM2_JACOBIAN_POINT *R, const SM2_BN t, const SM2_JACOBIAN_POINT *P, const SM2_BN s);
void sm2_jacobian_point_from_hex(SM2_JACOBIAN_POINT *P, const char hex[64 * 2]); // for testing only
int sm2_jacobian_point_is_at_infinity(const SM2_JACOBIAN_POINT *P);
int sm2_jacobian_point_is_on_curve(const SM2_JACOBIAN_POINT *P);
int sm2_jacobian_point_equ_hex(const SM2_JACOBIAN_POINT *P, const char hex[128]); // for testing only
int sm2_jacobian_point_print(FILE *fp, int fmt, int ind, const char *label, const SM2_JACOBIAN_POINT *P);
#define sm2_jacobian_point_set_infinity(R) sm2_jacobian_point_init(R)
#define sm2_jacobian_point_copy(R, P) memcpy((R), (P), sizeof(SM2_JACOBIAN_POINT))
typedef uint8_t sm2_bn_t[32];
typedef struct {
@@ -131,6 +33,8 @@ typedef struct {
#define sm2_point_init(P) memset((P),0,sizeof(SM2_POINT))
#define sm2_point_set_infinity(P) sm2_point_init(P)
int sm2_point_from_octets(SM2_POINT *P, const uint8_t *in, size_t inlen);
void sm2_point_to_compressed_octets(const SM2_POINT *P, uint8_t out[33]);
void sm2_point_to_uncompressed_octets(const SM2_POINT *P, uint8_t out[65]);
@@ -147,6 +51,7 @@ int sm2_point_mul(SM2_POINT *R, const uint8_t k[32], const SM2_POINT *P);
int sm2_point_mul_generator(SM2_POINT *R, const uint8_t k[32]);
int sm2_point_mul_sum(SM2_POINT *R, const uint8_t k[32], const SM2_POINT *P, const uint8_t s[32]); // R = k * P + s * G
/*
RFC 5480 Elliptic Curve Cryptography Subject Public Key Information
ECPoint ::= OCTET STRING
@@ -163,7 +68,6 @@ typedef struct {
uint8_t private_key[32];
} SM2_KEY;
_gmssl_export int sm2_key_generate(SM2_KEY *key);
int sm2_key_set_private_key(SM2_KEY *key, const uint8_t private_key[32]); // key->public_key will be replaced
int sm2_key_set_public_key(SM2_KEY *key, const SM2_POINT *public_key); // key->private_key will be cleared // FIXME: support octets as input?
@@ -174,6 +78,7 @@ int sm2_public_key_equ(const SM2_KEY *sm2_key, const SM2_KEY *pub_key);
int sm2_public_key_digest(const SM2_KEY *key, uint8_t dgst[32]);
int sm2_public_key_print(FILE *fp, int fmt, int ind, const char *label, const SM2_KEY *pub_key);
/*
from RFC 5915
@@ -258,9 +163,14 @@ typedef struct {
} SM2_SIGNATURE;
int sm2_do_sign(const SM2_KEY *key, const uint8_t dgst[32], SM2_SIGNATURE *sig);
int sm2_do_sign_fast(const SM2_Fn d, const uint8_t dgst[32], SM2_SIGNATURE *sig);
int sm2_do_sign_fast(const uint64_t d[4], const uint8_t dgst[32], SM2_SIGNATURE *sig);
int sm2_do_verify(const SM2_KEY *key, const uint8_t dgst[32], const SM2_SIGNATURE *sig);
int sm2_do_sign_pre_compute(uint64_t k[4], uint64_t x1[4]);
int sm2_do_sign_fast_ex(const uint64_t d[4], const uint64_t k[4], const uint64_t x1[4], const uint8_t dgst[32], SM2_SIGNATURE *sig);
int sm2_do_verify_fast(const SM2_Z256_POINT *P, const uint8_t dgst[32], const SM2_SIGNATURE *sig);
#define SM2_MIN_SIGNATURE_SIZE 8
#define SM2_MAX_SIGNATURE_SIZE 72
@@ -277,6 +187,8 @@ enum {
};
int sm2_sign_fixlen(const SM2_KEY *key, const uint8_t dgst[32], size_t siglen, uint8_t *sig);
#define SM2_DEFAULT_ID "1234567812345678"
#define SM2_DEFAULT_ID_LENGTH (sizeof(SM2_DEFAULT_ID) - 1) // LENGTH for string and SIZE for bytes
#define SM2_DEFAULT_ID_BITS (SM2_DEFAULT_ID_LENGTH * 8)
@@ -286,9 +198,23 @@ int sm2_sign_fixlen(const SM2_KEY *key, const uint8_t dgst[32], size_t siglen, u
int sm2_compute_z(uint8_t z[32], const SM2_POINT *pub, const char *id, size_t idlen);
typedef struct {
uint64_t k[4];
uint64_t x1[4];
} SM2_SIGN_PRE_COMP;
typedef struct {
SM3_CTX sm3_ctx;
SM2_KEY key;
// FIXME: change `key` to SM2_Z256_POINT and uint64_t[4], inner type, faster sign/verify
SM2_Z256_POINT public_key; // z256 only
uint64_t sign_key[8]; // u64[8] to support SM2_BN
SM3_CTX inited_sm3_ctx;
SM2_SIGN_PRE_COMP pre_comp[32];
unsigned int num_pre_comp;
} SM2_SIGN_CTX;
_gmssl_export int sm2_sign_init(SM2_SIGN_CTX *ctx, const SM2_KEY *key, const char *id, size_t idlen);
@@ -300,6 +226,8 @@ _gmssl_export int sm2_verify_init(SM2_SIGN_CTX *ctx, const SM2_KEY *key, const c
_gmssl_export int sm2_verify_update(SM2_SIGN_CTX *ctx, const uint8_t *data, size_t datalen);
_gmssl_export int sm2_verify_finish(SM2_SIGN_CTX *ctx, const uint8_t *sig, size_t siglen);
_gmssl_export int sm2_sign_ctx_reset(SM2_SIGN_CTX *ctx);
/*
SM2Cipher ::= SEQUENCE {
XCoordinate INTEGER,
@@ -356,10 +284,6 @@ _gmssl_export int sm2_decrypt_init(SM2_ENC_CTX *ctx, const SM2_KEY *sm2_key);
_gmssl_export int sm2_decrypt_update(SM2_ENC_CTX *ctx, const uint8_t *in, size_t inlen, uint8_t *out, size_t *outlen);
_gmssl_export int sm2_decrypt_finish(SM2_ENC_CTX *ctx, const uint8_t *in, size_t inlen, uint8_t *out, size_t *outlen);
const uint64_t *sm2_bn_prime(void);
const uint64_t *sm2_bn_order(void);
const uint64_t *sm2_bn_one(void);
#ifdef __cplusplus
}
#endif