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42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
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/* Copyright (c) 2012, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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#ifndef TOR_ONION_NTOR_H
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#define TOR_ONION_NTOR_H
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#include "torint.h"
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#include "crypto_curve25519.h"
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#include "di_ops.h"
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/** State to be maintained by a client between sending an ntor onionskin
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* and receiving a reply. */
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typedef struct ntor_handshake_state_t ntor_handshake_state_t;
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/** Length of an ntor onionskin, as sent from the client to server. */
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#define NTOR_ONIONSKIN_LEN 84
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/** Length of an ntor reply, as sent from server to client. */
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#define NTOR_REPLY_LEN 64
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void ntor_handshake_state_free(ntor_handshake_state_t *state);
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int onion_skin_ntor_create(const uint8_t *router_id,
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const curve25519_public_key_t *router_key,
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ntor_handshake_state_t **handshake_state_out,
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uint8_t *onion_skin_out);
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int onion_skin_ntor_server_handshake(const uint8_t *onion_skin,
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const di_digest256_map_t *private_keys,
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const uint8_t *my_node_id,
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uint8_t *handshake_reply_out,
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uint8_t *key_out,
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size_t key_out_len);
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int onion_skin_ntor_client_handshake(
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const ntor_handshake_state_t *handshake_state,
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const uint8_t *handshake_reply,
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uint8_t *key_out,
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size_t key_out_len);
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#endif
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