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- /*
- * 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
- */
- #ifndef GMSSL_SM3_RNG_H
- #define GMSSL_SM3_RNG_H
- #include <time.h>
- #include <stdint.h>
- #ifdef __cplusplus
- extern "C" {
- #endif
- #define SM3_RNG_MAX_RESEED_COUNTER (1<<20)
- #define SM3_RNG_MAX_RESEED_SECONDS 600
- typedef struct {
- uint8_t V[55];
- uint8_t C[55];
- uint32_t reseed_counter;
- time_t last_reseed_time;
- } SM3_RNG;
- int sm3_rng_init(SM3_RNG *rng, const uint8_t *nonce, size_t nonce_len,
- const uint8_t *label, size_t label_len);
- int sm3_rng_reseed(SM3_RNG *rng, const uint8_t *addin, size_t addin_len);
- int sm3_rng_generate(SM3_RNG *rng, const uint8_t *addin, size_t addin_len,
- uint8_t *out, size_t outlen);
- #ifdef __cplusplus
- }
- #endif
- #endif
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