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Add sm2_encrypt_pre_compute

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This commit is contained in:
Zhi Guan
2024-04-25 16:34:03 +08:00
parent f0859a1f04
commit 3f1fdc147a
5 changed files with 270 additions and 98 deletions
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35
include/gmssl/sm2.h
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@@ -251,17 +251,36 @@ _gmssl_export int sm2_ecdh(const SM2_KEY *key, const uint8_t *peer_public, size_
typedef struct {
SM2_KEY sm2_key;
uint8_t buf[SM2_MAX_CIPHERTEXT_SIZE];
sm2_z256_t k;
SM2_POINT C1;
} SM2_ENC_PRE_COMP;
#define SM2_ENC_PRE_COMP_NUM 8
int sm2_encrypt_pre_compute(SM2_ENC_PRE_COMP pre_comp[SM2_ENC_PRE_COMP_NUM]);
int sm2_do_encrypt_ex(const SM2_KEY *key, const SM2_ENC_PRE_COMP *pre_comp,
const uint8_t *in, size_t inlen, SM2_CIPHERTEXT *out);
typedef struct {
SM2_ENC_PRE_COMP pre_comp[SM2_ENC_PRE_COMP_NUM];
size_t pre_comp_num;
uint8_t buf[SM2_MAX_PLAINTEXT_SIZE];
size_t buf_size;
} SM2_ENC_CTX;
_gmssl_export int sm2_encrypt_init(SM2_ENC_CTX *ctx, const SM2_KEY *sm2_key);
_gmssl_export int sm2_encrypt_update(SM2_ENC_CTX *ctx, const uint8_t *in, size_t inlen, uint8_t *out, size_t *outlen);
_gmssl_export int sm2_encrypt_finish(SM2_ENC_CTX *ctx, const uint8_t *in, size_t inlen, uint8_t *out, size_t *outlen);
_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);
_gmssl_export int sm2_encrypt_init(SM2_ENC_CTX *ctx);
_gmssl_export int sm2_encrypt_update(SM2_ENC_CTX *ctx, const uint8_t *in, size_t inlen);
_gmssl_export int sm2_encrypt_finish(SM2_ENC_CTX *ctx, const SM2_KEY *public_key, uint8_t *out, size_t *outlen);
_gmssl_export int sm2_encrypt_reset(SM2_ENC_CTX *ctx);
typedef struct {
uint8_t buf[SM2_MAX_CIPHERTEXT_SIZE];
size_t buf_size;
} SM2_DEC_CTX;
_gmssl_export int sm2_decrypt_init(SM2_DEC_CTX *ctx);
_gmssl_export int sm2_decrypt_update(SM2_DEC_CTX *ctx, const uint8_t *in, size_t inlen);
_gmssl_export int sm2_decrypt_finish(SM2_DEC_CTX *ctx, const SM2_KEY *key, uint8_t *out, size_t *outlen);
_gmssl_export int sm2_decrypt_reset(SM2_DEC_CTX *ctx);
#ifdef __cplusplus