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internal	[ DIR ]	drwxr-xr-x
ablk_helper.h	773 B	-rw-r--r--
acompress.h	7.83 KB	-rw-r--r--
aead.h	18.03 KB	-rw-r--r--
aes.h	1.03 KB	-rw-r--r--
akcipher.h	11.63 KB	-rw-r--r--
algapi.h	11.12 KB	-rw-r--r--
authenc.h	845 B	-rw-r--r--
b128ops.h	2.41 KB	-rw-r--r--
blowfish.h	415 B	-rw-r--r--
cast5.h	590 B	-rw-r--r--
cast6.h	636 B	-rw-r--r--
cast_common.h	232 B	-rw-r--r--
cbc.h	3.48 KB	-rw-r--r--
chacha20.h	640 B	-rw-r--r--
cryptd.h	2.5 KB	-rw-r--r--
crypto_wq.h	161 B	-rw-r--r--
ctr.h	524 B	-rw-r--r--
des.h	542 B	-rw-r--r--
dh.h	2.62 KB	-rw-r--r--
drbg.h	8.96 KB	-rw-r--r--
ecdh.h	2.67 KB	-rw-r--r--
engine.h	4 KB	-rw-r--r--
gcm.h	140 B	-rw-r--r--
gf128mul.h	9.41 KB	-rw-r--r--
ghash.h	381 B	-rw-r--r--
hash.h	31.34 KB	-rw-r--r--
hash_info.h	1.13 KB	-rw-r--r--
hmac.h	173 B	-rw-r--r--
if_alg.h	7.01 KB	-rw-r--r--
kpp.h	9.62 KB	-rw-r--r--
lrw.h	1.22 KB	-rw-r--r--
mcryptd.h	2.37 KB	-rw-r--r--
md5.h	497 B	-rw-r--r--
null.h	569 B	-rw-r--r--
padlock.h	649 B	-rw-r--r--
pcrypt.h	1.4 KB	-rw-r--r--
pkcs7.h	1.21 KB	-rw-r--r--
poly1305.h	920 B	-rw-r--r--
public_key.h	2.08 KB	-rw-r--r--
rng.h	6.59 KB	-rw-r--r--
scatterwalk.h	3.67 KB	-rw-r--r--
serpent.h	712 B	-rw-r--r--
sha.h	2.88 KB	-rw-r--r--
sha1_base.h	2.47 KB	-rw-r--r--
sha256_base.h	3.03 KB	-rw-r--r--
sha3.h	704 B	-rw-r--r--
sha512_base.h	3.19 KB	-rw-r--r--
skcipher.h	20.63 KB	-rw-r--r--
sm3.h	833 B	-rw-r--r--
sm3_base.h	2.95 KB	-rw-r--r--
twofish.h	755 B	-rw-r--r--
xts.h	1.81 KB	-rw-r--r--

Code Editor : dh.h

/*
 * Diffie-Hellman secret to be used with kpp API along with helper functions
 *
 * Copyright (c) 2016, Intel Corporation
 * Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 */
#ifndef _CRYPTO_DH_
#define _CRYPTO_DH_

/**
 * DOC: DH Helper Functions
 *
 * To use DH with the KPP cipher API, the following data structure and
 * functions should be used.
 *
 * To use DH with KPP, the following functions should be used to operate on
 * a DH private key. The packet private key that can be set with
 * the KPP API function call of crypto_kpp_set_secret.
 */

/**
 * struct dh - define a DH private key
 *
 * @key:	Private DH key
 * @p:		Diffie-Hellman parameter P
 * @g:		Diffie-Hellman generator G
 * @key_size:	Size of the private DH key
 * @p_size:	Size of DH parameter P
 * @g_size:	Size of DH generator G
 */
struct dh {
	void *key;
	void *p;
	void *g;
	unsigned int key_size;
	unsigned int p_size;
	unsigned int g_size;
};

/**
 * crypto_dh_key_len() - Obtain the size of the private DH key
 * @params:	private DH key
 *
 * This function returns the packet DH key size. A caller can use that
 * with the provided DH private key reference to obtain the required
 * memory size to hold a packet key.
 *
 * Return: size of the key in bytes
 */
unsigned int crypto_dh_key_len(const struct dh *params);

/**
 * crypto_dh_encode_key() - encode the private key
 * @buf:	Buffer allocated by the caller to hold the packet DH
 *		private key. The buffer should be at least crypto_dh_key_len
 *		bytes in size.
 * @len:	Length of the packet private key buffer
 * @params:	Buffer with the caller-specified private key
 *
 * The DH implementations operate on a packet representation of the private
 * key.
 *
 * Return:	-EINVAL if buffer has insufficient size, 0 on success
 */
int crypto_dh_encode_key(char *buf, unsigned int len, const struct dh *params);

/**
 * crypto_dh_decode_key() - decode a private key
 * @buf:	Buffer holding a packet key that should be decoded
 * @len:	Length of the packet private key buffer
 * @params:	Buffer allocated by the caller that is filled with the
 *		unpacked DH private key.
 *
 * The unpacking obtains the private key by pointing @p to the correct location
 * in @buf. Thus, both pointers refer to the same memory.
 *
 * Return:	-EINVAL if buffer has insufficient size, 0 on success
 */
int crypto_dh_decode_key(const char *buf, unsigned int len, struct dh *params);

#endif

${this.title}

Code Editor : dh.h