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/* Copyright (c) 2001 Matej Pfajfar.
* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2019, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file onion_fast.h
* \brief Header file for onion_fast.c.
**/
#ifndef TOR_ONION_FAST_H
#define TOR_ONION_FAST_H
#define CREATE_FAST_LEN DIGEST_LEN
#define CREATED_FAST_LEN (DIGEST_LEN*2)
typedef struct fast_handshake_state_t {
uint8_t state[DIGEST_LEN];
} fast_handshake_state_t;
void fast_handshake_state_free_(fast_handshake_state_t *victim);
#define fast_handshake_state_free(st) \
FREE_AND_NULL(fast_handshake_state_t, fast_handshake_state_free_, (st))
int fast_onionskin_create(fast_handshake_state_t **handshake_state_out,
uint8_t *handshake_out);
int fast_server_handshake(const uint8_t *message_in,
uint8_t *handshake_reply_out,
uint8_t *key_out,
size_t key_out_len);
int fast_client_handshake(const fast_handshake_state_t *handshake_state,
const uint8_t *handshake_reply_out,
uint8_t *key_out,
size_t key_out_len,
const char **msg_out);
#endif /* !defined(TOR_ONION_FAST_H) */
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