Source file `p2p_identity.ml`

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(*****************************************************************************)
(*                                                                           *)
(* Open Source License                                                       *)
(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com>     *)
(*                                                                           *)
(* Permission is hereby granted, free of charge, to any person obtaining a   *)
(* copy of this software and associated documentation files (the "Software"),*)
(* to deal in the Software without restriction, including without limitation *)
(* the rights to use, copy, modify, merge, publish, distribute, sublicense,  *)
(* and/or sell copies of the Software, and to permit persons to whom the     *)
(* Software is furnished to do so, subject to the following conditions:      *)
(*                                                                           *)
(* The above copyright notice and this permission notice shall be included   *)
(* in all copies or substantial portions of the Software.                    *)
(*                                                                           *)
(* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR*)
(* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,  *)
(* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL   *)
(* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER*)
(* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING   *)
(* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER       *)
(* DEALINGS IN THE SOFTWARE.                                                 *)
(*                                                                           *)
(*****************************************************************************)

type t = {
  peer_id : P2p_peer.Id.t;
  public_key : Tezos_crypto.Crypto_box.public_key;
  secret_key : Tezos_crypto.Crypto_box.secret_key;
  proof_of_work_stamp : Tezos_crypto.Crypto_box.nonce;
}

let encoding =
  let open Data_encoding in
  def
    "p2p_identity"
    ~description:
      "The identity of a peer. This includes cryptographic keys as well as a \
       proof-of-work."
  @@ conv
       (fun {peer_id; public_key; secret_key; proof_of_work_stamp} ->
         (Some peer_id, public_key, secret_key, proof_of_work_stamp))
       (fun (peer_id_opt, public_key, secret_key, proof_of_work_stamp) ->
         let peer_id =
           match peer_id_opt with
           | Some peer_id -> peer_id
           | None -> Tezos_crypto.Crypto_box.hash public_key
         in
         {peer_id; public_key; secret_key; proof_of_work_stamp})
       (obj4
          (opt "peer_id" P2p_peer_id.encoding)
          (req "public_key" Tezos_crypto.Crypto_box.public_key_encoding)
          (req "secret_key" Tezos_crypto.Crypto_box.secret_key_encoding)
          (req "proof_of_work_stamp" Tezos_crypto.Crypto_box.nonce_encoding))

let generate_with_bound ?yield_every ?max pow_target =
  let open Error_monad.Lwt_syntax in
  let secret_key, public_key, peer_id =
    Tezos_crypto.Crypto_box.random_keypair ()
  in
  let+ proof_of_work_stamp =
    Tezos_crypto.Crypto_box.generate_proof_of_work
      ?yield_every
      ?max
      public_key
      pow_target
  in
  {peer_id; public_key; secret_key; proof_of_work_stamp}

let generate ?yield_every pow_target =
  generate_with_bound ?yield_every pow_target

let generate_with_pow_target_0 () =
  let secret_key, public_key, peer_id =
    Tezos_crypto.Crypto_box.random_keypair ()
  in
  let proof_of_work_stamp =
    Tezos_crypto.Crypto_box.generate_proof_of_work_with_target_0 public_key
  in
  {peer_id; public_key; secret_key; proof_of_work_stamp}

let () = Data_encoding.Registration.register encoding