secure_inner_join.player module

Code for the abstract player class to implement parties performing secure set intersection

class secure_inner_join.player.Player(identifier, pool, data_parties=('alice', 'bob'), helper='henri')

Bases: ABC

Class for a player

__init__(identifier, pool, data_parties=('alice', 'bob'), helper='henri')

Initializes the database owner

Parameters:

• identifier (str) – identifier of the player

• pool (Pool) – instance of tno.mpc.communication.Pool

• data_parties (tuple[str, ...]) – identifiers of the data_parties

• helper (str) – identifier of the helper

static create_logger(name)

Create logger for class

Parameters:

name (str) – name of the logger

Return type:

Logger

Returns:

logger object

property data_parties: tuple[str, ...]

The identifiers of all data parties (sorted alphabetically, and the same for each player).

Returns:

A tuple containing the identifiers of all data parties.

property data_parties_and_addresses: tuple[tuple[str, str | None, int | None], ...]

Tuples containing (identifier, address, port) of all data parties (sorted alphabetically on identifier, and the same for each player).

Returns:

A tuple containing the identifiers, addresses, and ports of all data parties.

property helper: str

The identifier of the helper party.

Returns:

The identifier of the helper.

property identifier: str

The identifier of this party.

Returns:

The identifier of this party.

abstract property intersection_size: int

Returns the size of the intersection of the identifier columns of all data parties.

Returns:

The intersection size.

async receive_message(party, msg_id=None)

Receive a message from party with the given msg_id, if no msg_id is given the message with the lowest numerical id is selected.

Parameters:

• party (str) – Identifier of the party to receive message from.

• msg_id (str | None) – Optional identifier for the message.

Return type:

Any

Returns:

The received message contents.

abstractmethod async run_protocol()

Runs the entire protocol, start to end, in an asynchronous manner.

Return type:

None

async send_message(receiver, payload, msg_id=None)

Sends the given payload to the receiver with the given msg_id.

Parameters:

• receiver (str) – Identifier of the party to send the message to.

• payload (Any) – Data to send.

• msg_id (str | None) – Optional identifier for the message.

Return type:

None

abstractmethod shutdown_received_schemes()

Shut down all Paillier schemes that were received.

Return type:

None