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/* Copyright (c) 2022, Google Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
#ifndef OPENSSL_HEADER_CRYPTO_FIPSMODULE_DH_INTERNAL_H
#define OPENSSL_HEADER_CRYPTO_FIPSMODULE_DH_INTERNAL_H
#include <openssl/base.h>
#include <openssl/thread.h>
#if defined(__cplusplus)
extern "C" {
#endif
struct dh_st {
BIGNUM *p;
BIGNUM *g;
BIGNUM *q;
BIGNUM *pub_key; // g^x mod p
BIGNUM *priv_key; // x
// priv_length contains the length, in bits, of the private value. If zero,
// the private value will be the same length as |p|.
unsigned priv_length;
CRYPTO_MUTEX method_mont_p_lock;
BN_MONT_CTX *method_mont_p;
int flags;
CRYPTO_refcount_t references;
};
// dh_compute_key_padded_no_self_test does the same as |DH_compute_key_padded|,
// but doesn't try to run the self-test first. This is for use in the self tests
// themselves, to prevent an infinite loop.
int dh_compute_key_padded_no_self_test(unsigned char *out,
const BIGNUM *peers_key, DH *dh);
#if defined(__cplusplus)
}
#endif
#endif // OPENSSL_HEADER_CRYPTO_FIPSMODULE_DH_INTERNAL_H