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- /* Copyright (c) 2012, The Tor Project, Inc. */
- /* See LICENSE for licensing information */
- #ifndef TOR_ONION_NTOR_H
- #define TOR_ONION_NTOR_H
- #include "torint.h"
- #include "crypto_curve25519.h"
- #include "di_ops.h"
- /** State to be maintained by a client between sending an ntor onionskin
- * and receiving a reply. */
- typedef struct ntor_handshake_state_t ntor_handshake_state_t;
- /** Length of an ntor onionskin, as sent from the client to server. */
- #define NTOR_ONIONSKIN_LEN 84
- /** Length of an ntor reply, as sent from server to client. */
- #define NTOR_REPLY_LEN 64
- #ifdef CURVE25519_ENABLED
- void ntor_handshake_state_free(ntor_handshake_state_t *state);
- int onion_skin_ntor_create(const uint8_t *router_id,
- const curve25519_public_key_t *router_key,
- ntor_handshake_state_t **handshake_state_out,
- uint8_t *onion_skin_out);
- int onion_skin_ntor_server_handshake(const uint8_t *onion_skin,
- const di_digest256_map_t *private_keys,
- const curve25519_keypair_t *junk_keypair,
- const uint8_t *my_node_id,
- uint8_t *handshake_reply_out,
- uint8_t *key_out,
- size_t key_out_len);
- int onion_skin_ntor_client_handshake(
- const ntor_handshake_state_t *handshake_state,
- const uint8_t *handshake_reply,
- uint8_t *key_out,
- size_t key_out_len);
- #endif
- #endif
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