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