80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/*
|
|
* 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
|
|
*/
|
|
|
|
|
|
/* NIST SP800-90A Rev.1 "Recommendation for Random Number Generation
|
|
* Using Deterministic Random Bit Generators", 10.1.1 Hash_DRBG */
|
|
|
|
#ifndef GMSSL_HASH_DRBG_H
|
|
#define GMSSL_HASH_DRBG_H
|
|
|
|
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <gmssl/digest.h>
|
|
|
|
|
|
/* seedlen for hash_drgb, table 2 of nist sp 800-90a rev.1 */
|
|
#define HASH_DRBG_SM3_SEED_BITS 440 /* 55 bytes */
|
|
#define HASH_DRBG_SHA1_SEED_BITS 440
|
|
#define HASH_DRBG_SHA224_SEED_BITS 440
|
|
#define HASH_DRBG_SHA512_224_SEED_BITS 440
|
|
#define HASH_DRBG_SHA256_SEED_BITS 440
|
|
#define HASH_DRBG_SHA512_256_SEED_BITS 440
|
|
#define HASH_DRBG_SHA384_SEED_BITS 888 /* 110 bytes */
|
|
#define HASH_DRBG_SHA512_SEED_BITS 888
|
|
#define HASH_DRBG_MAX_SEED_BITS 888
|
|
|
|
#define HASH_DRBG_SM3_SEED_SIZE (HASH_DRBG_SM3_SEED_BITS/8)
|
|
#define HASH_DRBG_SHA1_SEED_SIZE (HASH_DRBG_SHA1_SEED_BITS/8)
|
|
#define HASH_DRBG_SHA224_SEED_SIZE (HASH_DRBG_SHA224_SEED_BITS/8)
|
|
#define HASH_DRBG_SHA512_224_SEED_SIZE (HASH_DRBG_SHA512_224_SEED_BITS/8)
|
|
#define HASH_DRBG_SHA256_SEED_SIZE (HASH_DRBG_SHA256_SEED_BITS/8)
|
|
#define HASH_DRBG_SHA512_256_SEED_SIZE (HASH_DRBG_SHA512_256_SEED_BITS/8)
|
|
#define HASH_DRBG_SHA384_SEED_SIZE (HASH_DRBG_SHA384_SEED_BITS/8)
|
|
#define HASH_DRBG_SHA512_SEED_SIZE (HASH_DRBG_SHA512_SEED_BITS/8)
|
|
#define HASH_DRBG_MAX_SEED_SIZE (HASH_DRBG_MAX_SEED_BITS/8)
|
|
|
|
#define HASH_DRBG_RESEED_INTERVAL ((uint64_t)1 << 48)
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
typedef struct {
|
|
const DIGEST *digest;
|
|
uint8_t V[HASH_DRBG_MAX_SEED_SIZE];
|
|
uint8_t C[HASH_DRBG_MAX_SEED_SIZE];
|
|
size_t seedlen;
|
|
uint64_t reseed_counter;
|
|
} HASH_DRBG;
|
|
|
|
|
|
int hash_drbg_init(HASH_DRBG *drbg,
|
|
const DIGEST *digest,
|
|
const uint8_t *entropy, size_t entropy_len,
|
|
const uint8_t *nonce, size_t nonce_len,
|
|
const uint8_t *personalstr, size_t personalstr_len);
|
|
|
|
int hash_drbg_reseed(HASH_DRBG *drbg,
|
|
const uint8_t *entropy, size_t entropy_len,
|
|
const uint8_t *additional, size_t additional_len);
|
|
|
|
int hash_drbg_generate(HASH_DRBG *drbg,
|
|
const uint8_t *additional, size_t additional_len,
|
|
size_t outlen, uint8_t *out);
|
|
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif
|