2 * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #include <openssl/dh.h>
14 * This first argument is used to pick up errors when a DH is passed
15 * instead of a EVP_PKEY
21 long length; /* optional */
22 BIGNUM *pub_key; /* g^x % p */
23 BIGNUM *priv_key; /* x */
25 BN_MONT_CTX *method_mont_p;
26 /* Place holders if we want to do X9.42 DH */
33 CRYPTO_EX_DATA ex_data;
34 const DH_METHOD *meth;
42 int (*generate_key) (DH *dh);
43 int (*compute_key) (unsigned char *key, const BIGNUM *pub_key, DH *dh);
46 int (*bn_mod_exp) (const DH *dh, BIGNUM *r, const BIGNUM *a,
47 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
50 int (*finish) (DH *dh);
53 /* If this is non-NULL, it will be used to generate parameters */
54 int (*generate_params) (DH *dh, int prime_len, int generator,