eal_drbg_local.h

/*
 * This file is part of the openHiTLS project.
 *
 * openHiTLS is licensed under the Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *
 *     http://license.coscl.org.cn/MulanPSL2
 *
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */
 
#ifndef EAL_DRBG_LOCAL_H
#define EAL_DRBG_LOCAL_H
 
#include "hitls_build.h"
#if defined(HITLS_CRYPTO_EAL) && defined(HITLS_CRYPTO_DRBG)
 
#include <stdint.h>
#include "bsl_sal.h"
 
#include "crypt_eal_rand.h"
#include "sal_atomic.h"
#include "crypt_local_types.h"
 
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
 
struct EAL_RndCtx {
    bool isProvider;
    CRYPT_RAND_AlgId id;
    EAL_RandUnitaryMethod *meth;
    void *ctx;
    bool working; // whether the system is in the working state
    bool isDefaultSeed;
    BSL_SAL_ThreadLockHandle lock; // thread lock
};
 
typedef struct {
    CRYPT_RAND_AlgId id; // seed-drbg algorithm
    CRYPT_EAL_RndCtx *seed; // seed-drbg
    void *seedCtx; // seed-drbg entropy source handle
    CRYPT_RandSeedMethod seedMeth; // seed-drbg entropy source implementation function
    BSL_SAL_RefCount references;
} EAL_SeedDrbg;
 
int32_t EAL_SeedDrbgInit(EAL_SeedDrbg *seedDrbg);
 
void EAL_SeedDrbgEntropyMeth(CRYPT_RandSeedMethod *meth);
 
void EAL_SeedDrbgRandDeinit(CRYPT_EAL_RndCtx *rndCtx);

void EAL_RandDeinit(CRYPT_EAL_RndCtx *ctx);

EAL_RandUnitaryMethod* EAL_RandGetMethod(void);

int32_t EAL_GetDefaultSeed(CRYPT_RandSeedMethod *seedMeth, void **seedCtx);
 
#ifdef __cplusplus
}
#endif // __cplusplus
 
#endif // HITLS_CRYPTO_DRBG
 
#endif // EAL_DRBG_LOCAL_H