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This commit is contained in:
Zhi Guan
2022-03-21 13:11:41 +08:00
parent ad1a4d66f9
commit 5ea884ce8f
50 changed files with 3319 additions and 1040 deletions
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51
include/gmssl/sm2.h
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@@ -1,4 +1,4 @@
/*
/*
* Copyright (c) 2014 - 2021 The GmSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -68,8 +68,15 @@ typedef struct {
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]);
int sm2_point_from_octets(SM2_POINT *P, const uint8_t *in, size_t inlen);
/*
RFC 5480 Elliptic Curve Cryptography Subject Public Key Information
ECPoint ::= OCTET STRING
*/
int sm2_point_to_der(const SM2_POINT *P, uint8_t **out, size_t *outlen);
int sm2_point_from_der(SM2_POINT *P, const uint8_t **in, size_t *inlen);
int sm2_point_from_x(SM2_POINT *P, const uint8_t x[32], int y);
int sm2_point_from_xy(SM2_POINT *P, const uint8_t x[32], const uint8_t y[32]);
int sm2_point_is_on_curve(const SM2_POINT *P);
@@ -81,14 +88,14 @@ int sm2_point_print(FILE *fp, int fmt, int ind, const char *label, const SM2_POI
typedef struct {
SM2_POINT public_key;
uint8_t private_key[32];
uint8_t key_usage[4];
} SM2_KEY;
int sm2_key_generate(SM2_KEY *key);
int sm2_key_set_private_key(SM2_KEY *key, const uint8_t private_key[32]);
int sm2_key_set_public_key(SM2_KEY *key, const SM2_POINT *public_key);
int sm2_key_set_private_key(SM2_KEY *key, const uint8_t private_key[32]); // 自动生成公钥
int sm2_key_set_public_key(SM2_KEY *key, const SM2_POINT *public_key); // 自动清空私钥，不要和set_private_key同时用
int sm2_key_print(FILE *fp, int fmt, int ind, const char *label, const SM2_KEY *key);
int sm2_public_key_equ(const SM2_KEY *sm2_key, const SM2_KEY *pub_key);
int sm2_public_key_copy(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);
@@ -98,17 +105,21 @@ from RFC 5915
ECPrivateKey ::= SEQUENCE {
version INTEGER, -- value MUST be (1)
privateKey OCTET STRING, -- big endian encoding of integer
privateKey OCTET STRING, -- big endian encoding of integer 这里不是以INTEGER编码的，因此长度固定
parameters [0] EXPLICIT ECParameters OPTIONAL,
-- ONLY namedCurve OID is permitted, by RFC 5480
-- MUST always include this field, by RFC 5915
publicKey [1] EXPLICIT BIT STRING OPTIONAL
publicKey [1] EXPLICIT BIT STRING OPTIONAL -- compressed_point
-- SHOULD always include this field, by RFC 5915 }
ECParameters ::= CHOICE { namedCurve OBJECT IDENTIFIER }
*/
#define SM2_PRIVATE_KEY_DEFAULT_SIZE 120 // generated
#define SM2_PRIVATE_KEY_BUF_SIZE 512 // MUST >= SM2_PRIVATE_KEY_DEFAULT_SIZE
int sm2_private_key_to_der(const SM2_KEY *key, uint8_t **out, size_t *outlen);
int sm2_private_key_from_der(SM2_KEY *key, const uint8_t **in, size_t *inlen);
int sm2_private_key_print(FILE *fp, int fmt, int ind, const char *label, const uint8_t *d, size_t dlen);
int sm2_private_key_to_pem(const SM2_KEY *key, FILE *fp);
int sm2_private_key_from_pem(SM2_KEY *key, FILE *fp);
@@ -141,8 +152,13 @@ PrivateKeyInfo ::= SEQUENCE {
privateKey OCTET STRING, -- DER-encoding of ECPrivateKey
attributes [0] IMPLICIT SET OF Attribute OPTIONAL }
*/
enum {
PKCS8_private_key_info_version = 0,
};
int sm2_private_key_info_to_der(const SM2_KEY *key, uint8_t **out, size_t *outlen);
int sm2_private_key_info_from_der(SM2_KEY *key, const uint8_t **attrs, size_t *attrslen, const uint8_t **in, size_t *inlen);
int sm2_private_key_info_print(FILE *fp, int fmt, int ind, const char *label, const uint8_t *d, size_t dlen);
int sm2_private_key_info_to_pem(const SM2_KEY *key, FILE *fp);
int sm2_private_key_info_from_pem(SM2_KEY *key, const uint8_t **attrs, size_t *attrslen, FILE *fp);
@@ -170,6 +186,7 @@ int sm2_signature_print(FILE *fp, int fmt, int ind, const char *label, const uin
int sm2_do_sign(const SM2_KEY *key, 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);
#define SM2_MIN_SIGNATURE_SIZE 8
#define SM2_MAX_SIGNATURE_SIZE 72
int sm2_sign(const SM2_KEY *key, const uint8_t dgst[32], uint8_t *sig, size_t *siglen);
@@ -177,13 +194,10 @@ int sm2_verify(const SM2_KEY *key, const uint8_t dgst[32], const uint8_t *sig, s
#define SM2_DEFAULT_ID "1234567812345678"
#define SM2_DEFAULT_ID_LENGTH (sizeof(SM2_DEFAULT_ID) - 1)
#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)
#define SM2_DEFAULT_ID_DIGEST_LENGTH SM3_DIGEST_LENGTH
#define SM2_MAX_ID_BITS 65535
#define SM2_MAX_ID_LENGTH (SM2_MAX_ID_BITS/8)
#define SM2_MAX_ID_SIZE (SM2_MAX_ID_BITS/8)
int sm2_compute_z(uint8_t z[32], const SM2_POINT *pub, const char *id, size_t idlen);
@@ -191,7 +205,6 @@ int sm2_compute_z(uint8_t z[32], const SM2_POINT *pub, const char *id, size_t id
typedef struct {
SM2_KEY key;
SM3_CTX sm3_ctx;
int flags;
} SM2_SIGN_CTX;
int sm2_sign_init(SM2_SIGN_CTX *ctx, const SM2_KEY *key, const char *id, size_t idlen);
@@ -209,29 +222,29 @@ SM2Cipher ::= SEQUENCE {
HASH OCTET STRING SIZE(32),
CipherText OCTET STRING }
*/
#define SM2_MIN_PLAINTEXT_SIZE 1 // re-compute SM2_MIN_CIPHERTEXT_SIZE when modify
#define SM2_MAX_PLAINTEXT_SIZE 255 // re-compute SM2_MAX_CIPHERTEXT_SIZE when modify
typedef struct {
SM2_POINT point;
uint8_t hash[32];
uint32_t ciphertext_size;
uint8_t ciphertext[1];
uint8_t ciphertext_size;
uint8_t ciphertext[SM2_MAX_PLAINTEXT_SIZE];
} SM2_CIPHERTEXT;
#define SM2_MAX_PLAINTEXT_SIZE 256
#define SM2_MAX_CIPHERTEXT_SIZE 512
#define SM2_CIPHERTEXT_SIZE(inlen) (sizeof(SM2_CIPHERTEXT)-1+(inlen))
int sm2_ciphertext_size(size_t inlen, size_t *outlen);
int sm2_ciphertext_to_der(const SM2_CIPHERTEXT *c, uint8_t **out, size_t *outlen);
int sm2_ciphertext_from_der(SM2_CIPHERTEXT *c, const uint8_t **in, size_t *inlen);
int sm2_ciphertext_print(FILE *fp, int fmt, int ind, const char *label, const uint8_t *a, size_t alen);
int sm2_do_encrypt(const SM2_KEY *key, const uint8_t *in, size_t inlen, SM2_CIPHERTEXT *out);
int sm2_do_decrypt(const SM2_KEY *key, const SM2_CIPHERTEXT *in, uint8_t *out, size_t *outlen);
#define SM2_MIN_CIPHERTEXT_SIZE 45 // dependes on SM2_MIN_PLAINTEXT_SIZE
#define SM2_MAX_CIPHERTEXT_SIZE 366 // depends on SM2_MAX_PLAINTEXT_SIZE
int sm2_encrypt(const SM2_KEY *key, const uint8_t *in, size_t inlen, uint8_t *out, size_t *outlen);
int sm2_decrypt(const SM2_KEY *key, const uint8_t *in, size_t inlen, uint8_t *out, size_t *outlen);
int sm2_ecdh(const SM2_KEY *key, const SM2_POINT *peer_public, SM2_POINT *out);
int sm2_selftest(void);