bcrypt.py 文件源码

def _calc_checksum(self, secret):
        # bcrypt behavior:
        #   secret must be bytes
        #   config must be ascii bytes
        #   returns ascii bytes
        secret, ident = self._prepare_digest_args(secret)
        config = self._get_config(ident)
        if isinstance(config, unicode):
            config = config.encode("ascii")
        hash = _bcrypt.hashpw(secret, config)
        assert hash.startswith(config) and len(hash) == len(config)+31, \
            "config mismatch: %r => %r" % (config, hash)
        assert isinstance(hash, bytes)
        return hash[-31:].decode("ascii")

#-----------------------------------------------------------------------
# bcryptor backend
#-----------------------------------------------------------------------