Python encrypt.Encryptor方法代碼示例

# 需要導入模塊: from shadowsocks import encrypt [as 別名]
# 或者: from shadowsocks.encrypt import Encryptor [as 別名]
def client_udp_pre_encrypt(self, buf):
        if self.user_key is None:
            if b':' in to_bytes(self.server_info.protocol_param):
                try:
                    items = to_bytes(self.server_info.protocol_param).split(':')
                    self.user_key = self.hashfunc(items[1]).digest()
                    self.user_id = struct.pack('<I', int(items[0]))
                except:
                    pass
            if self.user_key is None:
                self.user_id = os.urandom(4)
                self.user_key = self.server_info.key
        authdata = os.urandom(3)
        mac_key = self.server_info.key
        md5data = hmac.new(mac_key, authdata, self.hashfunc).digest()
        uid = struct.unpack('<I', self.user_id)[0] ^ struct.unpack('<I', md5data[:4])[0]
        uid = struct.pack('<I', uid)
        rand_len = self.udp_rnd_data_len(md5data, self.random_client)
        encryptor = encrypt.Encryptor(to_bytes(base64.b64encode(self.user_key)) + to_bytes(base64.b64encode(md5data)), 'rc4')
        out_buf = encryptor.encrypt(buf)
        buf = out_buf + os.urandom(rand_len) + authdata + uid
        return buf + hmac.new(self.user_key, buf, self.hashfunc).digest()[:1] 

# 需要導入模塊: from shadowsocks import encrypt [as 別名]
# 或者: from shadowsocks.encrypt import Encryptor [as 別名]
def server_udp_pre_encrypt(self, buf, uid):
        if uid in self.server_info.users:
            user_key = self.server_info.users[uid]
        else:
            uid = None
            if not self.server_info.users:
                user_key = self.server_info.key
            else:
                user_key = self.server_info.recv_iv
        authdata = os.urandom(7)
        mac_key = self.server_info.key
        md5data = hmac.new(mac_key, authdata, self.hashfunc).digest()
        rand_len = self.udp_rnd_data_len(md5data, self.random_server)
        encryptor = encrypt.Encryptor(to_bytes(base64.b64encode(user_key)) + to_bytes(base64.b64encode(md5data)), 'rc4')
        out_buf = encryptor.encrypt(buf)
        buf = out_buf + os.urandom(rand_len) + authdata
        return buf + hmac.new(user_key, buf, self.hashfunc).digest()[:1] 

# 需要導入模塊: from shadowsocks import encrypt [as 別名]
# 或者: from shadowsocks.encrypt import Encryptor [as 別名]
def client_udp_pre_encrypt(self, buf):
        if self.user_key is None:
            if b':' in to_bytes(self.server_info.protocol_param):
                try:
                    items = to_bytes(self.server_info.protocol_param).split(':')
                    self.user_key = self.hashfunc(items[1]).digest()
                    self.user_id = struct.pack('<I', int(items[0]))
                except:
                    pass
            if self.user_key is None:
                self.user_id = rand_bytes(4)
                self.user_key = self.server_info.key
        authdata = rand_bytes(3)
        mac_key = self.server_info.key
        md5data = hmac.new(mac_key, authdata, self.hashfunc).digest()
        uid = struct.unpack('<I', self.user_id)[0] ^ struct.unpack('<I', md5data[:4])[0]
        uid = struct.pack('<I', uid)
        rand_len = self.udp_rnd_data_len(md5data, self.random_client)
        encryptor = encrypt.Encryptor(
            to_bytes(base64.b64encode(self.user_key)) + to_bytes(base64.b64encode(md5data)), 'rc4')
        out_buf = encryptor.encrypt(buf)
        buf = out_buf + rand_bytes(rand_len) + authdata + uid
        return buf + hmac.new(self.user_key, buf, self.hashfunc).digest()[:1] 

# 需要導入模塊: from shadowsocks import encrypt [as 別名]
# 或者: from shadowsocks.encrypt import Encryptor [as 別名]
def server_udp_pre_encrypt(self, buf, uid):
        if uid in self.server_info.users:
            user_key = self.server_info.users[uid]
        else:
            uid = None
            if not self.server_info.users:
                user_key = self.server_info.key
            else:
                user_key = self.server_info.recv_iv
        authdata = rand_bytes(7)
        mac_key = self.server_info.key
        md5data = hmac.new(mac_key, authdata, self.hashfunc).digest()
        rand_len = self.udp_rnd_data_len(md5data, self.random_server)
        encryptor = encrypt.Encryptor(to_bytes(base64.b64encode(user_key)) + to_bytes(base64.b64encode(md5data)), 'rc4')
        out_buf = encryptor.encrypt(buf)
        buf = out_buf + rand_bytes(rand_len) + authdata
        return buf + hmac.new(user_key, buf, self.hashfunc).digest()[:1] 

# 需要導入模塊: from shadowsocks import encrypt [as 別名]
# 或者: from shadowsocks.encrypt import Encryptor [as 別名]
def client_udp_pre_encrypt(self, buf):
        if self.user_key is None:
            if b':' in to_bytes(self.server_info.protocol_param):
                try:
                    items = to_bytes(self.server_info.protocol_param).split(':')
                    self.user_key = self.hashfunc(items[1]).digest()
                    self.user_id = struct.pack('<I', int(items[0]))
                except:
                    pass
            if self.user_key is None:
                self.user_id = os.urandom(4)
                self.user_key = self.server_info.key
        authdata = os.urandom(3)
        mac_key = self.server_info.key
        md5data = hmac.new(mac_key, authdata, self.hashfunc).digest()
        uid = struct.unpack('<I', self.user_id)[0] ^ struct.unpack('<I', md5data[:4])[0]
        uid = struct.pack('<I', uid)
        rand_len = self.udp_rnd_data_len(md5data, self.random_client)
        encryptor = encrypt.Encryptor(
            to_bytes(base64.b64encode(self.user_key)) + to_bytes(base64.b64encode(md5data)), 'rc4')
        out_buf = encryptor.encrypt(buf)
        buf = out_buf + os.urandom(rand_len) + authdata + uid
        return buf + hmac.new(self.user_key, buf, self.hashfunc).digest()[:1] 

# 需要導入模塊: from shadowsocks import encrypt [as 別名]
# 或者: from shadowsocks.encrypt import Encryptor [as 別名]
def __init__(self, server, fd_to_handlers, loop, local_sock, config,
                 dns_resolver, is_local):
        self._server = server
        self._fd_to_handlers = fd_to_handlers
        self._loop = loop
        self._local_sock = local_sock
        self._remote_sock = None
        self._config = config
        self._dns_resolver = dns_resolver

        # TCP Relay works as either sslocal or ssserver
        # if is_local, this is sslocal
        self._is_local = is_local
        self._stage = STAGE_INIT
        self._encryptor = encrypt.Encryptor(config['password'],
                                            config['method'])
        self._fastopen_connected = False
        self._data_to_write_to_local = []
        self._data_to_write_to_remote = []
        self._upstream_status = WAIT_STATUS_READING
        self._downstream_status = WAIT_STATUS_INIT
        self._client_address = local_sock.getpeername()[:2]
        self._remote_address = None
        if 'forbidden_ip' in config:
            self._forbidden_iplist = config['forbidden_ip']
        else:
            self._forbidden_iplist = None
        if is_local:
            self._chosen_server = self._get_a_server()
        fd_to_handlers[local_sock.fileno()] = self
        local_sock.setblocking(False)
        local_sock.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, 1)
        loop.add(local_sock, eventloop.POLL_IN | eventloop.POLL_ERR,
                 self._server)
        self.last_activity = 0
        self._update_activity() 

# 需要導入模塊: from shadowsocks import encrypt [as 別名]
# 或者: from shadowsocks.encrypt import Encryptor [as 別名]
def _init_cipherer(self, toencrypt=False):
        method = args.mode
        if method not in CIPHERS:
            method = 'aes-256-cfb'
        if not args.passwd:
            print s % (1, 91, '  !! missing Password.\n')
            sys.exit(1)

        self._cipherer = encrypt.Encryptor(args.passwd, method) 

# 需要導入模塊: from shadowsocks import encrypt [as 別名]
# 或者: from shadowsocks.encrypt import Encryptor [as 別名]
def pack_auth_data(self, auth_data, buf):
        if len(buf) == 0:
            return b''
        if len(buf) > 400:
            rnd_len = struct.unpack('<H', os.urandom(2))[0] % 512
        else:
            rnd_len = struct.unpack('<H', os.urandom(2))[0] % 1024
        data = auth_data
        data_len = 7 + 4 + 16 + 4 + len(buf) + rnd_len + 4
        data = data + struct.pack('<H', data_len) + struct.pack('<H', rnd_len)
        mac_key = self.server_info.iv + self.server_info.key
        uid = os.urandom(4)
        if b':' in to_bytes(self.server_info.protocol_param):
            try:
                items = to_bytes(self.server_info.protocol_param).split(b':')
                self.user_key = self.hashfunc(items[1]).digest()
                uid = struct.pack('<I', int(items[0]))
            except:
                pass
        if self.user_key is None:
            self.user_key = self.server_info.key
        encryptor = encrypt.Encryptor(to_bytes(base64.b64encode(self.user_key)) + self.salt, 'aes-128-cbc', b'\x00' * 16)
        data = uid + encryptor.encrypt(data)[16:]
        data += hmac.new(mac_key, data, self.hashfunc).digest()[:4]
        check_head = os.urandom(1)
        check_head += hmac.new(mac_key, check_head, self.hashfunc).digest()[:6]
        data = check_head + data + os.urandom(rnd_len) + buf
        data += hmac.new(self.user_key, data, self.hashfunc).digest()[:4]
        return data 

# 需要導入模塊: from shadowsocks import encrypt [as 別名]
# 或者: from shadowsocks.encrypt import Encryptor [as 別名]
def pack_auth_data(self, auth_data, buf):
        data = auth_data
        data_len = 12 + 4 + 16 + 4
        data = data + (struct.pack('<H', self.server_info.overhead) + struct.pack('<H', 0))
        mac_key = self.server_info.iv + self.server_info.key

        check_head = os.urandom(4)
        self.last_client_hash = hmac.new(mac_key, check_head, self.hashfunc).digest()
        check_head += self.last_client_hash[:8]

        if b':' in to_bytes(self.server_info.protocol_param):
            try:
                items = to_bytes(self.server_info.protocol_param).split(b':')
                self.user_key = items[1]
                uid = struct.pack('<I', int(items[0]))
            except:
                uid = os.urandom(4)
        else:
            uid = os.urandom(4)
        if self.user_key is None:
            self.user_key = self.server_info.key

        encryptor = encrypt.Encryptor(to_bytes(base64.b64encode(self.user_key)) + self.salt, 'aes-128-cbc', b'\x00' * 16)

        uid = struct.unpack('<I', uid)[0] ^ struct.unpack('<I', self.last_client_hash[8:12])[0]
        uid = struct.pack('<I', uid)
        data = uid + encryptor.encrypt(data)[16:]
        self.last_server_hash = hmac.new(self.user_key, data, self.hashfunc).digest()
        data = check_head + data + self.last_server_hash[:4]
        self.encryptor = encrypt.Encryptor(to_bytes(base64.b64encode(self.user_key)) + to_bytes(base64.b64encode(self.last_client_hash)), 'rc4')
        return data + self.pack_client_data(buf) 

# 需要導入模塊: from shadowsocks import encrypt [as 別名]
# 或者: from shadowsocks.encrypt import Encryptor [as 別名]
def client_udp_post_decrypt(self, buf):
        if len(buf) <= 8:
            return (b'', None)
        if hmac.new(self.user_key, buf[:-1], self.hashfunc).digest()[:1] != buf[-1:]:
            return (b'', None)
        mac_key = self.server_info.key
        md5data = hmac.new(mac_key, buf[-8:-1], self.hashfunc).digest()
        rand_len = self.udp_rnd_data_len(md5data, self.random_server)
        encryptor = encrypt.Encryptor(to_bytes(base64.b64encode(self.user_key)) + to_bytes(base64.b64encode(md5data)), 'rc4')
        return encryptor.decrypt(buf[:-8 - rand_len]) 

# 需要導入模塊: from shadowsocks import encrypt [as 別名]
# 或者: from shadowsocks.encrypt import Encryptor [as 別名]
def _create_encryptor(self, config):
        try:
            self._encryptor = encrypt.Encryptor(config['password'],
                                                config['method'])
            return True
        except Exception:
            self._stage = STAGE_DESTROYED
            logging.error('create encryptor fail at port %d', self._server._listen_port) 

# 需要導入模塊: from shadowsocks import encrypt [as 別名]
# 或者: from shadowsocks.encrypt import Encryptor [as 別名]
def pack_auth_data(self, auth_data, buf):
        data = auth_data
        data = data + (struct.pack('<H', self.server_info.overhead) + struct.pack('<H', 0))
        mac_key = self.server_info.iv + self.server_info.key

        check_head = rand_bytes(4)
        self.last_client_hash = hmac.new(mac_key, check_head, self.hashfunc).digest()
        check_head += self.last_client_hash[:8]

        if b':' in to_bytes(self.server_info.protocol_param):
            try:
                items = to_bytes(self.server_info.protocol_param).split(b':')
                self.user_key = items[1]
                uid = struct.pack('<I', int(items[0]))
            except:
                uid = rand_bytes(4)
        else:
            uid = rand_bytes(4)
        if self.user_key is None:
            self.user_key = self.server_info.key

        encryptor = encrypt.Encryptor(
            to_bytes(base64.b64encode(self.user_key)) + self.salt, 'aes-128-cbc', b'\x00' * 16)

        uid = struct.unpack('<I', uid)[0] ^ struct.unpack('<I', self.last_client_hash[8:12])[0]
        uid = struct.pack('<I', uid)
        data = uid + encryptor.encrypt(data)[16:]
        self.last_server_hash = hmac.new(self.user_key, data, self.hashfunc).digest()
        data = check_head + data + self.last_server_hash[:4]
        self.encryptor = encrypt.Encryptor(
            to_bytes(base64.b64encode(self.user_key)) + to_bytes(base64.b64encode(self.last_client_hash)), 'rc4')
        return data + self.pack_client_data(buf) 

# 需要導入模塊: from shadowsocks import encrypt [as 別名]
# 或者: from shadowsocks.encrypt import Encryptor [as 別名]
def client_udp_post_decrypt(self, buf):
        if len(buf) <= 8:
            return (b'', None)
        if hmac.new(self.user_key, buf[:-1], self.hashfunc).digest()[:1] != buf[-1:]:
            return (b'', None)
        mac_key = self.server_info.key
        md5data = hmac.new(mac_key, buf[-8:-1], self.hashfunc).digest()
        rand_len = self.udp_rnd_data_len(md5data, self.random_server)
        encryptor = encrypt.Encryptor(
            to_bytes(base64.b64encode(self.user_key)) + to_bytes(base64.b64encode(md5data)), 'rc4')
        return encryptor.decrypt(buf[:-8 - rand_len]) 

# 需要導入模塊: from shadowsocks import encrypt [as 別名]
# 或者: from shadowsocks.encrypt import Encryptor [as 別名]
def _create_encryptor(self, config):
        try:
            self._encryptor = encrypt.Encryptor(config['password'],
                                                config['method'], None, None, True)
            return True
        except Exception:
            self._stage = STAGE_DESTROYED
            logging.error('create encryptor fail at port %d', self._server._listen_port)
            traceback.print_exc()