// SPDX-License-Identifier: GPL-2.0-only/* * SM3 secure hash, as specified by OSCCA GM/T 0004-2012 SM3 and * described at https://tools.ietf.org/html/draft-shen-sm3-hash-01 * * Copyright (C) 2017 ARM Limited or its affiliates. * Written by Gilad Ben-Yossef <gilad@benyossef.com> * Copyright (C) 2021 Tianjia Zhang <tianjia.zhang@linux.alibaba.com> * Copyright 2026 Google LLC */ #include <crypto/internal/hash.h>#include <crypto/sm3.h>#include <linux/kernel.h>#include <linux/module.h> #define SM3_CTX(desc) ((struct sm3_ctx *)shash_desc_ctx(desc)) static int crypto_sm3_init(struct shash_desc *desc){	sm3_init(SM3_CTX(desc));	return 0;} static int crypto_sm3_update(struct shash_desc *desc,			     const u8 *data, unsigned int len){	sm3_update(SM3_CTX(desc), data, len);	return 0;} static int crypto_sm3_final(struct shash_desc *desc, u8 *out){	sm3_final(SM3_CTX(desc), out);	return 0;} static int crypto_sm3_digest(struct shash_desc *desc,			     const u8 *data, unsigned int len, u8 *out){	sm3(data, len, out);	return 0;} static int crypto_sm3_export_core(struct shash_desc *desc, void *out){	memcpy(out, SM3_CTX(desc), sizeof(struct sm3_ctx));	return 0;} static int crypto_sm3_import_core(struct shash_desc *desc, const void *in){	memcpy(SM3_CTX(desc), in, sizeof(struct sm3_ctx));	return 0;} static struct shash_alg sm3_alg = {	.base.cra_name		= "sm3",	.base.cra_driver_name	= "sm3-lib",	.base.cra_priority	= 300,	.base.cra_blocksize	= SM3_BLOCK_SIZE,	.base.cra_module	= THIS_MODULE,	.digestsize		= SM3_DIGEST_SIZE,	.init			= crypto_sm3_init,	.update			= crypto_sm3_update,	.final			= crypto_sm3_final,	.digest			= crypto_sm3_digest,	.export_core		= crypto_sm3_export_core,	.import_core		= crypto_sm3_import_core,	.descsize		= sizeof(struct sm3_ctx),}; static int __init crypto_sm3_mod_init(void){	return crypto_register_shash(&sm3_alg);}module_init(crypto_sm3_mod_init); static void __exit crypto_sm3_mod_exit(void){	crypto_unregister_shash(&sm3_alg);}module_exit(crypto_sm3_mod_exit); MODULE_LICENSE("GPL v2");MODULE_DESCRIPTION("Crypto API support for SM3"); MODULE_ALIAS_CRYPTO("sm3");MODULE_ALIAS_CRYPTO("sm3-lib");