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/*
* ISC License
*
* Copyright (c) 2013-2019
* Frank Denis <j at pureftpd dot org>
*
* 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 x25519_ref10_H
#define x25519_ref10_H
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
#define crypto_scalarmult_curve25519_BYTES 32U
size_t crypto_scalarmult_curve25519_bytes(void);
#define crypto_scalarmult_curve25519_SCALARBYTES 32U
size_t crypto_scalarmult_curve25519_scalarbytes(void);
/*
* NOTE: Do not use the result of this function directly for key exchange.
*
* Hash the result with the public keys in order to compute a shared
* secret key: H(q || client_pk || server_pk)
*
* Or unless this is not an option, use the crypto_kx() API instead.
*/
#define crypto_scalarmult_curve25519 hc_hcrypto_scalarmult_curve25519
int crypto_scalarmult_curve25519(unsigned char *q, const unsigned char *n,
const unsigned char *p);
#define crypto_scalarmult_curve25519_base hc_hcrypto_scalarmult_curve25519_base
int crypto_scalarmult_curve25519_base(unsigned char *q,
const unsigned char *n);
#ifdef __cplusplus
}
#endif
#endif
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