61 lines
1.8 KiB
Python
61 lines
1.8 KiB
Python
from math import gcd
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from random import randint, randbytes
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def debug_hashes_eq(x: bytes, R_table: dict[int, int]) -> bool:
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return hashfn(x, R_table) == bcrypt(x)
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def debug_test_random_hashes(trials: int,
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max_bytes: int = 16,
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quiet: bool = False) -> bytes | None:
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R_table = precompute_R(0, 255)
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for i in range(trials):
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# generate random bytes
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num_bytes = randint(0, max_bytes)
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x = randbytes(num_bytes)
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# test the modified bcrypt with the original
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hash_test = hashfn(x, R_table)
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hash_bcrypt = bcrypt(x)
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if hash_test != hash_bcrypt:
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if not quiet:
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print(f'Your hashfn sucks, big mistake bucko!! (iter: {i})')
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print(hash_test)
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print(hash_bcrypt)
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print([str(b) for b in x])
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return x
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if not quiet:
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print('Impeccable hashfn holy moly!!')
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return None
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def main() -> None:
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print(f'gcd(H,K): {gcd(H,K)}')
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print(f'gcd(H,M): {gcd(H,M)}')
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print(f'gcd(K,M): {gcd(K,M)}')
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if debug_test_random_hashes(10000) != None:
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R_table = precompute_R(0, 255)
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x = bytes(input('x: '), 'utf-8')
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hash_test = hashfn(x, R_table)
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hash_bcrypt = bcrypt(x)
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print(f'hashfn: {hash_test}')
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print(f'bcrypt: {hash_bcrypt}')
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# a = bytes(input("A: "), 'utf-8')
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# b = bytes(input("B: "), 'utf-8')
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# if a != b and hashfn(a) == hashfn(b):
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# print('*** YOU WIN ***')
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# elif a == b:
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# print('Idiot those are the same')
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# else:
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# print("Trivially false!")
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if __name__ == '__main__':
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try:
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main()
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except KeyboardInterrupt:
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print('\n[!] Received SIGINT')
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except EOFError:
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print('\n[!] Reached EOF')
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