+------------------+------------------+------------------+
| Extension Type   | Message Type     | Message Length   |
| (2 bytes)        | (1 byte)         | (3 bytes)        |
+------------------+------------------+------------------+
|                      Payload                           |
|                   (variable length)                    |
+--------------------------------------------------------+

1. Client initiates Noise handshake
2. Server provides certificate (signed by authority)
3. Encrypted channel established
4. All subsequent messages encrypted

{
  protocol: U32,
  min_version: U16,
  max_version: U16,
  flags: U32,
  endpoint_host: STR0_255,
  endpoint_port: U16,
  vendor: STR0_255,
  hardware_version: STR0_255,
  firmware: STR0_255,
  device_id: STR0_255
}

{
  used_version: U16,
  flags: U32
}

{
  request_id: U32,
  user_identity: STR0_255,
  nominal_hash_rate: F32,
  max_target: U256
}

{
  request_id: U32,
  channel_id: U32,
  target: U256,
  extranonce_prefix: B0_32,
  group_channel_id: U32
}

{
  channel_id: U32,
  job_id: U32,
  future_job: BOOL,
  version: U32,
  version_rolling_allowed: BOOL
}

{
  channel_id: U32,
  job_id: U32,
  prev_hash: U256,
  min_ntime: U32,
  nbits: U32
}

{
  channel_id: U32,
  sequence_number: U32,
  job_id: U32,
  nonce: U32,
  ntime: U32,
  version: U32
}

{
  channel_id: U32,
  last_sequence_number: U32,
  new_submits_accepted_count: U32,
  new_shares_sum: U64
}

{
  request_id: U32,
  mining_job_token: B0_255,
  version: U32,
  coinbase_prefix: B0_64K,
  coinbase_suffix: B0_64K,
  tx_short_hash_nonce: U64,
  tx_short_hash_list: SEQ0_64K[U64],
  tx_hash_list_hash: U256,
  excess_data: B0_64K
}

{
  template_id: U64,
  future_template: BOOL,
  version: U32,
  coinbase_tx_version: U32,
  coinbase_prefix: B0_64K,
  coinbase_tx_input_sequence: U32,
  coinbase_tx_value_remaining: U64,
  coinbase_tx_outputs_count: U32,
  coinbase_tx_outputs: B0_64K,
  coinbase_tx_locktime: U32,
  merkle_path: SEQ0_255[U256]
}

Client: {"method":"mining.subscribe","params":["Agent/1.0"],"id":1}
Server: {"result":[[["mining.set_difficulty","1"],["mining.notify","1"]],"08000000",4],"id":1}
Client: {"method":"mining.authorize","params":["user.worker",""],"id":2}
Server: {"result":true,"id":2}
Server: {"method":"mining.set_difficulty","params":[1024]}
Server: {"method":"mining.notify","params":["job1","prev...","cb1","cb2",[],"ver","bits","time",true]}
Client: {"method":"mining.submit","params":["user.worker","job1","00000000","time","nonce"],"id":3}
Server: {"result":true,"id":3}

1. Noise handshake (encrypted channel established)
2. SetupConnection → SetupConnection.Success
3. OpenStandardMiningChannel → OpenStandardMiningChannel.Success
4. SetTarget (difficulty)
5. NewMiningJob + SetNewPrevHash (job assignment)
6. SubmitSharesStandard → SubmitShares.Success

[dependencies]
binary_sv2 = "1.0"
codec_sv2 = "1.0"
framing_sv2 = "1.0"
noise_sv2 = "1.0"