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31 lines
1.0 KiB
31 lines
1.0 KiB
3 years ago
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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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