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30 lines
1.0 KiB
30 lines
1.0 KiB
from dataclasses import dataclass, field |
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import typing |
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from random import choice, uniform |
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@dataclass |
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class EveBS: |
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hijack_probability: float = 0.45 |
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my_basises: typing.List[bool] = field(default_factory=list) |
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obtained_data: typing.List[typing.Optional[bool]] = field(default_factory=list) |
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def process_photons(self, photons: typing.List[typing.Tuple[bool, bool]]) -> typing.List[typing.Tuple[bool, bool]]: |
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basis = choice([False, True]) |
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self.my_basises.append(basis) |
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clicks = [0, 0] |
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passed = [] |
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for photon in photons: |
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if uniform(0, 1) <= self.hijack_probability: |
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photon_bit, photon_basis = photon |
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if photon_basis == basis: |
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clicks[photon_bit] += 1 |
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else: |
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clicks[choice([0, 1])] += 1 |
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else: |
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passed.append(photon) |
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if any(clicks) and not all(clicks): |
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self.obtained_data.append(bool(clicks[1])) |
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else: |
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self.obtained_data.append(None) |
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return passed
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