88 lines
2.5 KiB
Python
88 lines
2.5 KiB
Python
from __future__ import annotations
|
|
from dataclasses import dataclass
|
|
from typing import Self
|
|
|
|
import dacite
|
|
import yaml
|
|
|
|
|
|
@dataclass
|
|
class Config:
|
|
simulation: SimulationConfig
|
|
mixnet: MixnetConfig
|
|
p2p: P2pConfig
|
|
adversary: AdversaryConfig
|
|
|
|
@classmethod
|
|
def load(cls, yaml_path: str) -> Self:
|
|
with open(yaml_path, "r") as f:
|
|
data = yaml.safe_load(f)
|
|
config = dacite.from_dict(data_class=Config, data=data)
|
|
|
|
# Validations
|
|
config.simulation.validate()
|
|
config.mixnet.validate()
|
|
config.p2p.validate()
|
|
config.adversary.validate()
|
|
|
|
return config
|
|
|
|
|
|
@dataclass
|
|
class SimulationConfig:
|
|
running_time: int
|
|
|
|
def validate(self):
|
|
assert self.running_time > 0
|
|
|
|
|
|
@dataclass
|
|
class MixnetConfig:
|
|
num_nodes: int
|
|
num_mix_layers: int
|
|
# An interval of sending a new real/cover message
|
|
# A probability of actually sending a message depends on the following parameters.
|
|
message_interval: int
|
|
# A probability of sending a real message within one cycle
|
|
real_message_prob: float
|
|
# A weight of real message emission probability of some nodes
|
|
# Each weight is assigned to each node in the order of the node ID.
|
|
# The length of the list should be <= num_nodes. i.e. some nodes won't have a weight.
|
|
real_message_prob_weights: list[float]
|
|
# A probability of sending a cover message within one cycle if not sending a real message
|
|
cover_message_prob: float
|
|
# A maximum preparation time (delay) before sending the message
|
|
max_message_prep_time: float
|
|
# A maximum delay of messages mixed in a mix node
|
|
max_mix_delay: float
|
|
|
|
def validate(self):
|
|
assert self.num_nodes > 0
|
|
assert 0 < self.num_mix_layers <= self.num_nodes
|
|
assert self.message_interval > 0
|
|
assert self.real_message_prob > 0
|
|
assert len(self.real_message_prob_weights) <= self.num_nodes
|
|
for weight in self.real_message_prob_weights:
|
|
assert weight >= 1
|
|
assert self.cover_message_prob >= 0
|
|
assert self.max_message_prep_time >= 0
|
|
assert self.max_mix_delay >= 0
|
|
|
|
|
|
@dataclass
|
|
class P2pConfig:
|
|
# A maximum network latency between nodes directly connected with each other
|
|
max_network_latency: float
|
|
|
|
def validate(self):
|
|
assert self.max_network_latency >= 0
|
|
|
|
|
|
@dataclass
|
|
class AdversaryConfig:
|
|
# A discrete time window for the adversary to observe inputs and outputs of a certain node
|
|
io_observation_window: int
|
|
|
|
def validate(self):
|
|
assert self.io_observation_window >= 0
|