linux/crypto/kdf_sp800108.c

// SPDX-License-Identifier: GPL-2.0

/*
 * SP800-108 Key-derivation function
 *
 * Copyright (C) 2021, Stephan Mueller <[email protected]>
 */

#include <linux/fips.h>
#include <linux/module.h>
#include <crypto/kdf_sp800108.h>
#include <crypto/internal/kdf_selftest.h>

/*
 * SP800-108 CTR KDF implementation
 */
int crypto_kdf108_ctr_generate(struct crypto_shash *kmd,
			       const struct kvec *info, unsigned int info_nvec,
			       u8 *dst, unsigned int dlen)
{ … }
EXPORT_SYMBOL(…);

/*
 * The seeding of the KDF
 */
int crypto_kdf108_setkey(struct crypto_shash *kmd,
			 const u8 *key, size_t keylen,
			 const u8 *ikm, size_t ikmlen)
{ … }
EXPORT_SYMBOL(…);

/*
 * Test vector obtained from
 * http://csrc.nist.gov/groups/STM/cavp/documents/KBKDF800-108/CounterMode.zip
 */
static const struct kdf_testvec kdf_ctr_hmac_sha256_tv_template[] = …;

static int __init crypto_kdf108_init(void)
{ … }

static void __exit crypto_kdf108_exit(void) { … }

module_init(…) …;
module_exit(crypto_kdf108_exit);

MODULE_LICENSE(…) …;
MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;