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, either Alice or Bob or Henri

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

• data_parties (Tuple[str, 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, str]

The identifiers of the data parties

Returns:

the identifiers of the data parties

property helper: str

The identifier of the helper player

Returns:

the identifier of the helper

property identifier: str

The identifier of this player

Returns:

the identifier

abstract property intersection_size: int

Should return the size of the intersection between the identifier columns of the data parties

Returns:

the intersection size

property party_alice: str

The identifier that is used to identify the first party (Alice)

Returns:

the identifier of the first party

property party_bob: str

The identifier that is used to identify the second party (Bob)

Returns:

the identifier of the second party

async receive_message(party, msg_id=None)

Receive a message from party with msg_id

Parameters:

• party (str) – party to receive message from

• msg_id (Optional[str]) – optional identifier for the message

Return type:

Any

Returns:

the received message contents

abstract async run_protocol()

Should run the entire protocol, start to end, in an asynchronous manner

Return type:

None

async send_message(receiver, payload, msg_id=None)

Send a payload to receiver with msg_id

Parameters:

• receiver (str) – party to send message to

• payload (Any) – data to send

• msg_id (Optional[str]) – optional identifier for the message

Return type:

None