def from_string(cls, hash):
hash = to_unicode(hash, "ascii", "hash")
m = cls._hash_regex.match(hash)
if not m:
raise uh.exc.InvalidHashError(cls)
rounds, salt, chk = m.group("rounds", "salt", "chk")
return cls(rounds=h64.decode_int24(rounds.encode("ascii")),
salt=salt,
checksum=chk)
def from_string(cls, hash):
hash = to_unicode(hash, "ascii", "hash")
m = cls._hash_regex.match(hash)
if not m:
raise uh.exc.InvalidHashError(cls)
rounds, salt, chk = m.group("rounds", "salt", "chk")
return cls(
rounds=h64.decode_int24(rounds.encode("ascii")),
salt=salt,
checksum=chk,
)
def _raw_bsdi_crypt(secret, rounds, salt):
"""pure-python backend for bsdi_crypt"""
# decode salt
salt_value = h64.decode_int24(salt)
# gotta do something - no official policy since this predates unicode
if isinstance(secret, unicode):
secret = secret.encode("utf-8")
assert isinstance(secret, bytes)
# forbidding NULL char because underlying crypt() rejects them too.
if _BNULL in secret:
raise uh.exc.NullPasswordError(bsdi_crypt)
# convert secret string into an integer
key_value = _bsdi_secret_to_key(secret)
# run data through des using input of 0
result = des_encrypt_int_block(key_value, 0, salt_value, rounds)
# run h64 encode on result
return h64big.encode_int64(result)
def _raw_bsdi_crypt(secret, rounds, salt):
"""pure-python backend for bsdi_crypt"""
# decode salt
salt_value = h64.decode_int24(salt)
# gotta do something - no official policy since this predates unicode
if isinstance(secret, unicode):
secret = secret.encode("utf-8")
assert isinstance(secret, bytes)
# forbidding NULL char because underlying crypt() rejects them too.
if _BNULL in secret:
raise uh.exc.NullPasswordError(bsdi_crypt)
# convert secret string into an integer
key_value = _bsdi_secret_to_key(secret)
# run data through des using input of 0
result = des_encrypt_int_block(key_value, 0, salt_value, rounds)
# run h64 encode on result
return h64big.encode_int64(result)