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Add SM4 RNG

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Zhi Guan
2022-12-22 14:31:23 +08:00
parent 462b7c2f69
commit d48b7d916b
4 changed files with 444 additions and 0 deletions
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35
include/gmssl/sm4_cbc_mac.h Normal file
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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_SM4_CBC_MAC_H
#define GMSSL_SM4_CBC_MAC_H
#include <stdint.h>
#include <gmssl/sm4.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
SM4_KEY key;
uint8_t iv[16];
size_t ivlen;
} SM4_CBC_MAC_CTX;
void sm4_cbc_mac_init(SM4_CBC_MAC_CTX *ctx, const uint8_t key[16]);
void sm4_cbc_mac_update(SM4_CBC_MAC_CTX *ctx, const uint8_t *data, size_t datalen);
void sm4_cbc_mac_finish(SM4_CBC_MAC_CTX *ctx, uint8_t mac[16]);
#ifdef __cplusplus
}
#endif
#endif

43
include/gmssl/sm4_rng.h Normal file
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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_SM4_RNG_H
#define GMSSL_SM4_RNG_H
#include <time.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
#define SM4_RNG_MAX_RESEED_COUNTER (1<<20)
#define SM4_RNG_MAX_RESEED_SECONDS 600
typedef struct {
uint8_t V[16];
uint8_t K[16];
uint32_t reseed_counter;
time_t last_reseed_time;
} SM4_RNG;
int sm4_rng_init(SM4_RNG *rng, const uint8_t *nonce, size_t nonce_len,
const uint8_t *label, size_t label_len);
int sm4_rng_update(SM4_RNG *rng, const uint8_t seed[32]);
int sm4_rng_reseed(SM4_RNG *rng, const uint8_t *addin, size_t addin_len);
int sm4_rng_generate(SM4_RNG *rng, const uint8_t *addin, size_t addin_len,
uint8_t *out, size_t outlen);
#ifdef __cplusplus
}
#endif
#endif