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// 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");
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