def hash_file(path, base=64, block_size=65536):
hash_maker = hashlib.sha256()
with open(path, 'rb') as file:
block = file.read(block_size)
while len(block) > 0:
hash_maker.update(block)
block = file.read(block_size)
if base == 64:
return base64.b64encode(hash_maker.digest()).decode()
elif base == 32:
return base32hex.b32encode(hash_maker.digest()).replace('=', '-')
else:
raise ValueError(f'base{base} is unknown!')
def __str__(self):
salt_str = '-'
if len(self.salt) > 0:
salt_str = self.salt[1:].hex().upper()
owner_types_str = ""
if self.owner_types != 'none':
owner_types_str = self.owner_types
return '{} IN NSEC3 {} {} {} {} {} {}'.format(
self.fqdn, self.hash_algorithm, self.flags, self.iterations,
salt_str,
base32hex.b32encode(self.next_hash[1:]).upper().strip('='),
owner_types_str)
def hash_object(obj, base=64):
"""
:type obj: Obj
:type base: int
:rtype str
"""
if hasattr(obj, '__hash64__') and base == 64:
return obj.__hash64__()
elif hasattr(obj, '__hash32__') and base == 32:
return obj.__hash32__()
hash_maker = hashlib.sha256()
hash_maker.update(repr(make_hashable(obj)).encode())
if base == 64:
return base64.b64encode(hash_maker.digest()).decode()
elif base == 32:
return base32hex.b32encode(hash_maker.digest()).replace('=', '-')
else:
raise ValueError(f'base{base} is unknown!')
def string(self):
# type: () -> str
byte_value = self.bytes()
return base32hex.b32encode(byte_value).lower()[:trimLen]
def make_hash_sha256(obj):
hasher = hashlib.sha256()
hasher.update(repr(obj).encode())
return base32hex.b32encode(hasher.digest()).replace('=', '-')
def test_array_to_string(self):
x = base32hex.b32encode([0x4d, 0x88, 0xe1, 0x5b, 0x60, 0xf4,
0x86, 0xe4, 0x28, 0x41, 0x2d, 0xc9])
self.assertEqual('9m4e2mr0ui3e8a215n4g===='.upper(), x)
def test_string_encode(self):
x = base32hex.b32encode('base32hex_encoder')
self.assertEqual('C9GN6P9J69K6AU2VCLN66RR4CLP0===='.upper(), x)