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Add SM2_VERIFY_CTX

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This commit is contained in:
Zhi Guan
2024-04-25 08:40:39 +08:00
parent 52c1e57e8c
commit f8fbeddd4f
10 changed files with 216 additions and 41 deletions
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21
include/gmssl/sm2.h
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@@ -139,6 +139,8 @@ typedef struct {
int sm2_fast_sign_pre_compute(SM2_SIGN_PRE_COMP pre_comp[32]);
int sm2_fast_sign(const sm2_z256_t fast_private, SM2_SIGN_PRE_COMP *pre_comp,
const uint8_t dgst[32], SM2_SIGNATURE *sig);
int sm2_fast_verify(const SM2_Z256_POINT point_table[16],
const uint8_t dgst[32], const SM2_SIGNATURE *sig);
#define SM2_MIN_SIGNATURE_SIZE 8
@@ -175,18 +177,29 @@ typedef struct {
sm2_z256_t fast_sign_private;
SM2_SIGN_PRE_COMP pre_comp[SM2_SIGN_PRE_COMP_COUNT];
unsigned int num_pre_comp;
// verify public point table, P, 2P, ..., 16P
SM2_Z256_POINT public_point_table[16];
} SM2_SIGN_CTX;
_gmssl_export int sm2_sign_init(SM2_SIGN_CTX *ctx, const SM2_KEY *key, const char *id, size_t idlen);
_gmssl_export int sm2_sign_update(SM2_SIGN_CTX *ctx, const uint8_t *data, size_t datalen);
_gmssl_export int sm2_sign_finish(SM2_SIGN_CTX *ctx, uint8_t *sig, size_t *siglen);
_gmssl_export int sm2_sign_reset(SM2_SIGN_CTX *ctx);
int sm2_sign_finish_fixlen(SM2_SIGN_CTX *ctx, size_t siglen, uint8_t *sig);
_gmssl_export int sm2_verify_init(SM2_SIGN_CTX *ctx, const SM2_KEY *key, const char *id, size_t idlen);
_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);
typedef struct {
SM3_CTX sm3_ctx;
SM3_CTX saved_sm3_ctx;
SM2_KEY key;
SM2_Z256_POINT public_point_table[16];
} SM2_VERIFY_CTX;
_gmssl_export int sm2_verify_init(SM2_VERIFY_CTX *ctx, const SM2_KEY *key, const char *id, size_t idlen);
_gmssl_export int sm2_verify_update(SM2_VERIFY_CTX *ctx, const uint8_t *data, size_t datalen);
_gmssl_export int sm2_verify_finish(SM2_VERIFY_CTX *ctx, const uint8_t *sig, size_t siglen);
_gmssl_export int sm2_verify_reset(SM2_VERIFY_CTX *ctx);
_gmssl_export int sm2_sign_ctx_reset(SM2_SIGN_CTX *ctx);
/*
SM2Cipher ::= SEQUENCE {

3
include/gmssl/sm2_z256.h
View File

@@ -110,9 +110,12 @@ void sm2_z256_point_sub_affine(SM2_Z256_POINT *R, const SM2_Z256_POINT *A, const
int sm2_z256_point_affine_print(FILE *fp, int fmt, int ind, const char *label, const SM2_Z256_AFFINE_POINT *P);
void sm2_z256_point_mul_generator(SM2_Z256_POINT *R, const uint64_t k[4]);
void sm2_z256_point_mul_pre_compute(const SM2_Z256_POINT *P, SM2_Z256_POINT T[16]);
void sm2_z256_point_mul_ex(SM2_Z256_POINT *R, const uint64_t k[4], const SM2_Z256_POINT P_table[16]);
void sm2_z256_point_mul(SM2_Z256_POINT *R, const uint64_t k[4], const SM2_Z256_POINT *P);
void sm2_z256_point_mul_sum(SM2_Z256_POINT *R, const uint64_t t[4], const SM2_Z256_POINT *P, const uint64_t s[4]);
const uint64_t *sm2_z256_prime(void);
const uint64_t *sm2_z256_order(void);
const uint64_t *sm2_z256_order_minus_one(void);