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Adjust SM4 source files

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This commit is contained in:
Zhi Guan
2024-04-10 16:07:44 +08:00
parent ccab5f168e
commit 2d0378f3c7
13 changed files with 1029 additions and 911 deletions
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25
include/gmssl/aead.h
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@@ -74,32 +74,7 @@ _gmssl_export int sm4_ctr_sm3_hmac_decrypt_finish(SM4_CTR_SM3_HMAC_CTX *ctx,
uint8_t *out, size_t *outlen);
typedef struct {
SM4_CTR_CTX enc_ctx;
GHASH_CTX mac_ctx;
uint8_t Y[16]; // E(K, Y_0)
size_t taglen;
uint8_t mac[16];
size_t maclen;
} SM4_GCM_CTX;
#define SM4_GCM_KEY_SIZE 16
#define SM4_GCM_DEFAULT_TAG_SIZE 16
_gmssl_export int sm4_gcm_encrypt_init(SM4_GCM_CTX *ctx,
const uint8_t *key, size_t keylen, const uint8_t *iv, size_t ivlen,
const uint8_t *aad, size_t aadlen, size_t taglen);
_gmssl_export int sm4_gcm_encrypt_update(SM4_GCM_CTX *ctx,
const uint8_t *in, size_t inlen, uint8_t *out, size_t *outlen);
_gmssl_export int sm4_gcm_encrypt_finish(SM4_GCM_CTX *ctx,
uint8_t *out, size_t *outlen);
_gmssl_export int sm4_gcm_decrypt_init(SM4_GCM_CTX *ctx,
const uint8_t *key, size_t keylen, const uint8_t *iv, size_t ivlen,
const uint8_t *aad, size_t aadlen, size_t taglen);
_gmssl_export int sm4_gcm_decrypt_update(SM4_GCM_CTX *ctx,
const uint8_t *in, size_t inlen, uint8_t *out, size_t *outlen);
_gmssl_export int sm4_gcm_decrypt_finish(SM4_GCM_CTX *ctx,
uint8_t *out, size_t *outlen);
#ifdef __cplusplus

25
include/gmssl/gcm.h
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@@ -1,5 +1,5 @@
/*
* Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
* Copyright 2014-2024 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.
@@ -7,7 +7,6 @@
* http://www.apache.org/licenses/LICENSE-2.0
*/
#ifndef GMSSL_GCM_H
#define GMSSL_GCM_H
@@ -15,7 +14,7 @@
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <gmssl/gf128.h>
#include <gmssl/ghash.h>
#include <gmssl/block_cipher.h>
@@ -35,29 +34,9 @@ extern "C" {
#define GCM_MAX_PLAINTEXT_SIZE ((((uint64_t)1 << 39) - 256) >> 3)
#define GHASH_SIZE (16)
#define GCM_IS_LITTLE_ENDIAN 1
void ghash(const uint8_t h[16], const uint8_t *aad, size_t aadlen,
const uint8_t *c, size_t clen, uint8_t out[16]);
typedef struct {
gf128_t H;
gf128_t X;
size_t aadlen;
size_t clen;
uint8_t block[16];
size_t num;
} GHASH_CTX;
void ghash_init(GHASH_CTX *ctx, const uint8_t h[16], const uint8_t *aad, size_t aadlen);
void ghash_update(GHASH_CTX *ctx, const uint8_t *c, size_t clen);
void ghash_finish(GHASH_CTX *ctx, uint8_t out[16]);
int gcm_encrypt(const BLOCK_CIPHER_KEY *key, const uint8_t *iv, size_t ivlen,
const uint8_t *aad, size_t aadlen, const uint8_t *in, size_t inlen,
uint8_t *out, size_t taglen, uint8_t *tag);

49
include/gmssl/ghash.h Normal file
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@@ -0,0 +1,49 @@
/*
* Copyright 2014-2024 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_GHASH_H
#define GMSSL_GHASH_H
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <gmssl/gf128.h>
#ifdef __cplusplus
extern "C" {
#endif
#define GHASH_SIZE (16)
void ghash(const uint8_t h[16], const uint8_t *aad, size_t aadlen,
const uint8_t *c, size_t clen, uint8_t out[16]);
typedef struct {
gf128_t H;
gf128_t X;
size_t aadlen;
size_t clen;
uint8_t block[16];
size_t num;
} GHASH_CTX;
void ghash_init(GHASH_CTX *ctx, const uint8_t h[16], const uint8_t *aad, size_t aadlen);
void ghash_update(GHASH_CTX *ctx, const uint8_t *c, size_t clen);
void ghash_finish(GHASH_CTX *ctx, uint8_t out[16]);
#ifdef __cplusplus
}
#endif
#endif

33
include/gmssl/sm4.h
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@@ -119,6 +119,39 @@ int sm4_ctr_encrypt_finish(SM4_CTR_CTX *ctx, uint8_t *out, size_t *outlen);
#define sm4_ctr_decrypt_finish(ctx,out,outlen) sm4_ctr_encrypt_finish(ctx,out,outlen)
#include <gmssl/ghash.h>
#include <gmssl/api.h>
typedef struct {
SM4_CTR_CTX enc_ctx;
GHASH_CTX mac_ctx;
uint8_t Y[16]; // E(K, Y_0)
size_t taglen;
uint8_t mac[16];
size_t maclen;
} SM4_GCM_CTX;
#define SM4_GCM_KEY_SIZE 16
#define SM4_GCM_DEFAULT_TAG_SIZE 16
_gmssl_export int sm4_gcm_encrypt_init(SM4_GCM_CTX *ctx,
const uint8_t *key, size_t keylen, const uint8_t *iv, size_t ivlen,
const uint8_t *aad, size_t aadlen, size_t taglen);
_gmssl_export int sm4_gcm_encrypt_update(SM4_GCM_CTX *ctx,
const uint8_t *in, size_t inlen, uint8_t *out, size_t *outlen);
_gmssl_export int sm4_gcm_encrypt_finish(SM4_GCM_CTX *ctx,
uint8_t *out, size_t *outlen);
_gmssl_export int sm4_gcm_decrypt_init(SM4_GCM_CTX *ctx,
const uint8_t *key, size_t keylen, const uint8_t *iv, size_t ivlen,
const uint8_t *aad, size_t aadlen, size_t taglen);
_gmssl_export int sm4_gcm_decrypt_update(SM4_GCM_CTX *ctx,
const uint8_t *in, size_t inlen, uint8_t *out, size_t *outlen);
_gmssl_export int sm4_gcm_decrypt_finish(SM4_GCM_CTX *ctx,
uint8_t *out, size_t *outlen);
#ifdef ENABLE_SM4_ECB
// call `sm4_set_decrypt_key` before decrypt
void sm4_ecb_encrypt(const SM4_KEY *key, const uint8_t *in, size_t nblocks, uint8_t *out);