123456789101112131415161718192021222324252627282930313233343536373839404142434445 |
- /*
- * Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the License); you may
- * not use this file except in compliance with the License.
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- */
- // SM2 Key Shamir Secret Sharing
- #ifndef GMSSL_SM2_KEY_SHARE_H
- #define GMSSL_SM2_KEY_SHARE_H
- #include <stdio.h>
- #include <stdint.h>
- #include <stdlib.h>
- #include <gmssl/sm2.h>
- #ifdef __cplusplus
- extern "C" {
- #endif
- #define SM2_KEY_MAX_SHARES 12 // 12! = 479001600 < 2^31 = 2147483648
- typedef struct {
- SM2_KEY key;
- size_t index;
- size_t total_cnt;
- } SM2_KEY_SHARE;
- int sm2_key_split(const SM2_KEY *key, size_t recover_cnt, size_t total_cnt, SM2_KEY_SHARE *shares);
- int sm2_key_recover(SM2_KEY *key, const SM2_KEY_SHARE *shares, size_t shares_cnt);
- int sm2_key_share_encrypt_to_file(const SM2_KEY_SHARE *share, const char *pass, const char *path_prefix);
- int sm2_key_share_decrypt_from_file(SM2_KEY_SHARE *share, const char *pass, const char *file);
- int sm2_key_share_print(FILE *fp, int fmt, int ind, const char *label, const SM2_KEY_SHARE *share);
- #ifdef __cplusplus
- }
- #endif
- #endif
|