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Copy pathmurmur.py
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79 lines (62 loc) · 1.9 KB
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from __future__ import annotations
from refinery.lib.crypto.murmur import (
v2_mmh32digest,
v2_mmh32digestA,
v2_mmh64digestA,
v2_mmh64digestB,
v3_mmh32digest,
v3_mmh128digest32,
v3_mmh128digest64,
)
from refinery.lib.types import Param
from refinery.units.crypto.hash import Arg, HashUnit
class MurMurHash(HashUnit, abstract=True):
def __init__(
self,
seed: Param[int, Arg.Number(help='Optional seed value, defaults to {default}.')] = 0,
reps=1,
text=False,
):
super().__init__(seed=seed, text=text, reps=reps)
class m2h(MurMurHash):
"""
Returns the 32bit Murmur Hash, Version 2.
"""
def _algorithm(self, data) -> bytes:
return v2_mmh32digest(data, self.args.seed)
class m2ha(MurMurHash):
"""
Returns the 32bit Murmur Hash, Version 2, Variant A.
"""
def _algorithm(self, data) -> bytes:
return v2_mmh32digestA(data, self.args.seed)
class m2h64a(MurMurHash):
"""
Returns the 64bit Murmur Hash, Version 2, Variant A.
"""
def _algorithm(self, data) -> bytes:
return v2_mmh64digestA(data, self.args.seed)
class m2h64b(MurMurHash):
"""
Returns the 64bit Murmur Hash, Version 2, Variant B.
"""
def _algorithm(self, data) -> bytes:
return v2_mmh64digestB(data, self.args.seed)
class m3h(MurMurHash):
"""
Returns the 32bit Murmur Hash, Version 3.
"""
def _algorithm(self, data) -> bytes:
return v3_mmh32digest(data, self.args.seed)
class m3h64(MurMurHash):
"""
Returns the 128bit Murmur Hash, Version 3, 64bit digest size.
"""
def _algorithm(self, data) -> bytes:
return v3_mmh128digest64(data, self.args.seed)
class m3h32(MurMurHash):
"""
Returns the 128bit Murmur Hash, Version 3, 32bit digest size.
"""
def _algorithm(self, data) -> bytes:
return v3_mmh128digest32(data, self.args.seed)