// SPDX-License-Identifier: GPL-2.0-or-later/* * Crypto API support for SHA-3 * (https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.202.pdf) */#include <crypto/internal/hash.h>#include <crypto/sha3.h>#include <linux/kernel.h>#include <linux/module.h> #define SHA3_CTX(desc) ((struct sha3_ctx *)shash_desc_ctx(desc)) static int crypto_sha3_224_init(struct shash_desc *desc){	sha3_224_init(SHA3_CTX(desc));	return 0;} static int crypto_sha3_256_init(struct shash_desc *desc){	sha3_256_init(SHA3_CTX(desc));	return 0;} static int crypto_sha3_384_init(struct shash_desc *desc){	sha3_384_init(SHA3_CTX(desc));	return 0;} static int crypto_sha3_512_init(struct shash_desc *desc){	sha3_512_init(SHA3_CTX(desc));	return 0;} static int crypto_sha3_update(struct shash_desc *desc, const u8 *data,			      unsigned int len){	sha3_update(SHA3_CTX(desc), data, len);	return 0;} static int crypto_sha3_final(struct shash_desc *desc, u8 *out){	sha3_final(SHA3_CTX(desc), out);	return 0;} static int crypto_sha3_224_digest(struct shash_desc *desc,				  const u8 *data, unsigned int len, u8 *out){	sha3_224(data, len, out);	return 0;} static int crypto_sha3_256_digest(struct shash_desc *desc,				  const u8 *data, unsigned int len, u8 *out){	sha3_256(data, len, out);	return 0;} static int crypto_sha3_384_digest(struct shash_desc *desc,				  const u8 *data, unsigned int len, u8 *out){	sha3_384(data, len, out);	return 0;} static int crypto_sha3_512_digest(struct shash_desc *desc,				  const u8 *data, unsigned int len, u8 *out){	sha3_512(data, len, out);	return 0;} static int crypto_sha3_export_core(struct shash_desc *desc, void *out){	memcpy(out, SHA3_CTX(desc), sizeof(struct sha3_ctx));	return 0;} static int crypto_sha3_import_core(struct shash_desc *desc, const void *in){	memcpy(SHA3_CTX(desc), in, sizeof(struct sha3_ctx));	return 0;} static struct shash_alg algs[] = { {	.digestsize		= SHA3_224_DIGEST_SIZE,	.init			= crypto_sha3_224_init,	.update			= crypto_sha3_update,	.final			= crypto_sha3_final,	.digest			= crypto_sha3_224_digest,	.export_core		= crypto_sha3_export_core,	.import_core		= crypto_sha3_import_core,	.descsize		= sizeof(struct sha3_ctx),	.base.cra_name		= "sha3-224",	.base.cra_driver_name	= "sha3-224-lib",	.base.cra_blocksize	= SHA3_224_BLOCK_SIZE,	.base.cra_module	= THIS_MODULE,}, {	.digestsize		= SHA3_256_DIGEST_SIZE,	.init			= crypto_sha3_256_init,	.update			= crypto_sha3_update,	.final			= crypto_sha3_final,	.digest			= crypto_sha3_256_digest,	.export_core		= crypto_sha3_export_core,	.import_core		= crypto_sha3_import_core,	.descsize		= sizeof(struct sha3_ctx),	.base.cra_name		= "sha3-256",	.base.cra_driver_name	= "sha3-256-lib",	.base.cra_blocksize	= SHA3_256_BLOCK_SIZE,	.base.cra_module	= THIS_MODULE,}, {	.digestsize		= SHA3_384_DIGEST_SIZE,	.init			= crypto_sha3_384_init,	.update			= crypto_sha3_update,	.final			= crypto_sha3_final,	.digest			= crypto_sha3_384_digest,	.export_core		= crypto_sha3_export_core,	.import_core		= crypto_sha3_import_core,	.descsize		= sizeof(struct sha3_ctx),	.base.cra_name		= "sha3-384",	.base.cra_driver_name	= "sha3-384-lib",	.base.cra_blocksize	= SHA3_384_BLOCK_SIZE,	.base.cra_module	= THIS_MODULE,}, {	.digestsize		= SHA3_512_DIGEST_SIZE,	.init			= crypto_sha3_512_init,	.update			= crypto_sha3_update,	.final			= crypto_sha3_final,	.digest			= crypto_sha3_512_digest,	.export_core		= crypto_sha3_export_core,	.import_core		= crypto_sha3_import_core,	.descsize		= sizeof(struct sha3_ctx),	.base.cra_name		= "sha3-512",	.base.cra_driver_name	= "sha3-512-lib",	.base.cra_blocksize	= SHA3_512_BLOCK_SIZE,	.base.cra_module	= THIS_MODULE,} }; static int __init crypto_sha3_mod_init(void){	return crypto_register_shashes(algs, ARRAY_SIZE(algs));}module_init(crypto_sha3_mod_init); static void __exit crypto_sha3_mod_exit(void){	crypto_unregister_shashes(algs, ARRAY_SIZE(algs));}module_exit(crypto_sha3_mod_exit); MODULE_LICENSE("GPL");MODULE_DESCRIPTION("Crypto API support for SHA-3"); MODULE_ALIAS_CRYPTO("sha3-224");MODULE_ALIAS_CRYPTO("sha3-224-lib");MODULE_ALIAS_CRYPTO("sha3-256");MODULE_ALIAS_CRYPTO("sha3-256-lib");MODULE_ALIAS_CRYPTO("sha3-384");MODULE_ALIAS_CRYPTO("sha3-384-lib");MODULE_ALIAS_CRYPTO("sha3-512");MODULE_ALIAS_CRYPTO("sha3-512-lib");