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test: remove modinv python util helper function

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This commit is contained in:
Fabian Jahr
2023-04-27 18:08:20 +01:00
parent d89aca1bdb
commit dc14ba08e6
3 changed files with 4 additions and 28 deletions
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4
test/functional/test_framework/muhash.py
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@@ -6,8 +6,6 @@
import hashlib
import unittest
from .util import modinv
def rot32(v, bits):
"""Rotate the 32-bit value v left by bits bits."""
bits %= 32 # Make sure the term below does not throw an exception
@@ -88,7 +86,7 @@ class MuHash3072:
def digest(self):
"""Extract the final hash. Does not modify this object."""
val = (self.numerator * modinv(self.denominator, self.MODULUS)) % self.MODULUS
val = (self.numerator * pow(self.denominator, -1, self.MODULUS)) % self.MODULUS
bytes384 = val.to_bytes(384, 'little')
return hashlib.sha256(bytes384).digest()