src/or/onion_fast.h

   1 /* Copyright (c) 2001 Matej Pfajfar.
   2  * Copyright (c) 2001-2004, Roger Dingledine.
   3  * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
   4  * Copyright (c) 2007-2016, The Tor Project, Inc. */
   5 /* See LICENSE for licensing information */
   6
   7 /**
   8  * \file onion_fast.h
   9  * \brief Header file for onion_fast.c.
  10  **/
  11
  12 #ifndef TOR_ONION_FAST_H
  13 #define TOR_ONION_FAST_H
  14
  15 #define CREATE_FAST_LEN DIGEST_LEN
  16 #define CREATED_FAST_LEN (DIGEST_LEN*2)
  17
  18 typedef struct fast_handshake_state_t {
  19   uint8_t state[DIGEST_LEN];
  20 } fast_handshake_state_t;
  21
  22 void fast_handshake_state_free(fast_handshake_state_t *victim);
  23
  24 int fast_onionskin_create(fast_handshake_state_t **handshake_state_out,
  25                           uint8_t *handshake_out);
  26
  27 int fast_server_handshake(const uint8_t *message_in,
  28                           uint8_t *handshake_reply_out,
  29                           uint8_t *key_out,
  30                           size_t key_out_len);
  31
  32 int fast_client_handshake(const fast_handshake_state_t *handshake_state,
  33                           const uint8_t *handshake_reply_out,
  34                           uint8_t *key_out,
  35                           size_t key_out_len,
  36                           const char **msg_out);
  37
  38 #endif
  39