abc/GmSSL
1
0
Fork 0
mirror of https://github.com/guanzhi/GmSSL.git synced 2026-05-07 00:46:17 +08:00
Code Issues Packages Projects Releases Wiki Activity

Update SM2 Ring Signature

Browse Source
This commit is contained in:
Zhi Guan
2022-11-07 21:18:25 +08:00
parent ae1f044d32
commit 48de342b22
2 changed files with 398 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
include/gmssl/sm2.h
View File

@@ -396,6 +396,44 @@ int sm2_signature_to_public_key_points(const SM2_SIGNATURE *sig, const uint8_t d
SM2_POINT points[4], size_t *points_cnt);
// SM2 Ring Signature
typedef uint8_t sm2_bn_t[32];
int sm2_ring_do_sign(const SM2_KEY *sign_key, const SM2_POINT *public_keys, size_t public_keys_cnt,
const uint8_t dgst[32], uint8_t r[32], sm2_bn_t *s);
int sm2_ring_do_verify(const SM2_POINT *public_keys, size_t public_keys_cnt,
const uint8_t dgst[32], const uint8_t r[32], const sm2_bn_t *s);
int sm2_ring_signature_to_der(const sm2_bn_t r, const sm2_bn_t *s, size_t s_cnt, uint8_t **out, size_t *outlen);
int sm2_ring_signature_from_der(sm2_bn_t r, sm2_bn_t *s, size_t *s_cnt, const uint8_t **in, size_t *inlen);
int sm2_ring_sign(const SM2_KEY *sign_key, const SM2_POINT *public_keys, size_t public_keys_cnt,
const uint8_t dgst[32], uint8_t *sig, size_t *siglen);
int sm2_ring_verify(const SM2_POINT *public_keys, size_t public_keys_cnt,
const uint8_t dgst[32], const uint8_t *sig, size_t siglen);
#define SM2_RING_SIGN_MAX_SIGNERS 32
typedef struct {
int state;
SM3_CTX sm3_ctx;
SM2_KEY sign_key;
SM2_POINT public_keys[SM2_RING_SIGN_MAX_SIGNERS];
size_t public_keys_count;
char *id;
size_t idlen;
} SM2_RING_SIGN_CTX;
int sm2_ring_sign_init(SM2_RING_SIGN_CTX *ctx, const SM2_KEY *sign_key, const char *id, size_t idlen);
int sm2_ring_sign_add_signer(SM2_RING_SIGN_CTX *ctx, const SM2_KEY *public_key);
int sm2_ring_sign_update(SM2_RING_SIGN_CTX *ctx, const uint8_t *data, size_t datalen);
int sm2_ring_sign_finish(SM2_RING_SIGN_CTX *ctx, uint8_t *sig, size_t *siglen);
int sm2_ring_verify_init(SM2_RING_SIGN_CTX *ctx, const char *id, size_t idlen);
int sm2_ring_verify_add_signer(SM2_RING_SIGN_CTX *ctx, const SM2_KEY *public_key);
int sm2_ring_verify_update(SM2_RING_SIGN_CTX *ctx, const uint8_t *data, size_t datalen);
int sm2_ring_verify_finish(SM2_RING_SIGN_CTX *ctx, uint8_t *sig, size_t siglen);
#ifdef __cplusplus
}
#endif