diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 7606de0b1..887ed4440 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -33,7 +33,8 @@ repos:
     additional_dependencies: [toml]
 
 - repo: https://github.com/pre-commit/mirrors-mypy
-  rev: v0.740
+  rev: v0.790
   hooks:
   - id: mypy
+    additional_dependencies: [pycryptodome]
 #    args: [--no-strict-optional, --ignore-missing-imports]
diff --git a/kasa/__init__.py b/kasa/__init__.py
index 911a7dc39..108dccdb8 100755
--- a/kasa/__init__.py
+++ b/kasa/__init__.py
@@ -12,6 +12,7 @@
 to be handled by the user of the library.
 """
 from importlib_metadata import version  # type: ignore
+from kasa.auth import Auth
 from kasa.discover import Discover
 from kasa.exceptions import SmartDeviceException
 from kasa.protocol import TPLinkSmartHomeProtocol
@@ -26,6 +27,7 @@
 
 
 __all__ = [
+    "Auth",
     "Discover",
     "TPLinkSmartHomeProtocol",
     "SmartBulb",
diff --git a/kasa/auth.py b/kasa/auth.py
new file mode 100644
index 000000000..efd431a82
--- /dev/null
+++ b/kasa/auth.py
@@ -0,0 +1,21 @@
+"""Authentication class for KASA username / passwords."""
+from hashlib import md5
+
+
+class Auth:
+    """Authentication for Kasa KLAP authentication."""
+
+    def __init__(self, user: str = "", password: str = ""):
+        self.user = user
+        self.password = password
+        self.md5user = md5(user.encode()).digest()
+        self.md5password = md5(password.encode()).digest()
+        self.md5auth = md5(self.md5user + self.md5password).digest()
+
+    def authenticator(self):
+        """Return the KLAP authenticator for these credentials."""
+        return self.md5auth
+
+    def owner(self):
+        """Return the MD5 hash of the username in this object."""
+        return self.md5user
diff --git a/kasa/cli.py b/kasa/cli.py
index 167179e36..d86a3e4ae 100755
--- a/kasa/cli.py
+++ b/kasa/cli.py
@@ -8,6 +8,7 @@
 import asyncclick as click
 
 from kasa import (
+    Auth,
     Discover,
     SmartBulb,
     SmartDevice,
@@ -46,9 +47,24 @@
 @click.option("--plug", default=False, is_flag=True)
 @click.option("--lightstrip", default=False, is_flag=True)
 @click.option("--strip", default=False, is_flag=True)
+@click.option("--klap", default=False, is_flag=True)
+@click.option(
+    "--user",
+    default="",
+    required=False,
+    help="Username/email address to authenticate to device.",
+)
+@click.option(
+    "--password",
+    default="",
+    required=False,
+    help="Password to use to authenticate to device.",
+)
 @click.version_option()
 @click.pass_context
-async def cli(ctx, host, alias, target, debug, bulb, plug, lightstrip, strip):
+async def cli(
+    ctx, host, alias, target, debug, bulb, plug, lightstrip, strip, klap, user, password
+):
     """A tool for controlling TP-Link smart home devices."""  # noqa
     if debug:
         logging.basicConfig(level=logging.DEBUG)
@@ -67,6 +83,15 @@ async def cli(ctx, host, alias, target, debug, bulb, plug, lightstrip, strip):
             click.echo(f"No device with name {alias} found")
             return
 
+    if password != "" and user == "":
+        click.echo("Using a password requires a username")
+        return
+
+    if klap or user != "":
+        authentication = Auth(user=user, password=password)
+    else:
+        authentication = None
+
     if host is None:
         click.echo("No host name given, trying discovery..")
         await ctx.invoke(discover)
@@ -74,11 +99,11 @@ async def cli(ctx, host, alias, target, debug, bulb, plug, lightstrip, strip):
     else:
         if not bulb and not plug and not strip and not lightstrip:
             click.echo("No --strip nor --bulb nor --plug given, discovering..")
-            dev = await Discover.discover_single(host)
+            dev = await Discover.discover_single(host, authentication)
         elif bulb:
             dev = SmartBulb(host)
         elif plug:
-            dev = SmartPlug(host)
+            dev = SmartPlug(host, authentication)
         elif strip:
             dev = SmartStrip(host)
         elif lightstrip:
@@ -174,9 +199,17 @@ async def dump_discover(ctx, scrub):
 async def discover(ctx, timeout, discover_only, dump_raw):
     """Discover devices in the network."""
     target = ctx.parent.params["target"]
+    user = ctx.parent.params["user"]
+    password = ctx.parent.params["password"]
+
+    if user:
+        auth = Auth(user=user, password=password)
+    else:
+        auth = None
+
     click.echo(f"Discovering devices for {timeout} seconds")
     found_devs = await Discover.discover(
-        target=target, timeout=timeout, return_raw=dump_raw
+        target=target, timeout=timeout, return_raw=dump_raw, authentication=auth
     )
     if not discover_only:
         for ip, dev in found_devs.items():
diff --git a/kasa/discover.py b/kasa/discover.py
index e4091512e..2f6633406 100755
--- a/kasa/discover.py
+++ b/kasa/discover.py
@@ -1,10 +1,13 @@
 """Discovery module for TP-Link Smart Home devices."""
 import asyncio
+import binascii
+import hashlib
 import json
 import logging
 import socket
 from typing import Awaitable, Callable, Dict, Mapping, Optional, Type, Union, cast
 
+from kasa.auth import Auth
 from kasa.protocol import TPLinkSmartHomeProtocol
 from kasa.smartbulb import SmartBulb
 from kasa.smartdevice import SmartDevice, SmartDeviceException
@@ -35,15 +38,18 @@ def __init__(
         target: str = "255.255.255.255",
         discovery_packets: int = 3,
         interface: Optional[str] = None,
+        authentication: Optional[Auth] = None,
     ):
         self.transport = None
         self.discovery_packets = discovery_packets
         self.interface = interface
         self.on_discovered = on_discovered
-        self.protocol = TPLinkSmartHomeProtocol()
         self.target = (target, Discover.DISCOVERY_PORT)
+        self.new_target = (target, Discover.NEW_DISCOVERY_PORT)
         self.discovered_devices = {}
         self.discovered_devices_raw = {}
+        self.authentication = authentication
+        self.emptyUser = hashlib.md5().digest()
 
     def connection_made(self, transport) -> None:
         """Set socket options for broadcasting."""
@@ -62,9 +68,11 @@ def do_discover(self) -> None:
         """Send number of discovery datagrams."""
         req = json.dumps(Discover.DISCOVERY_QUERY)
         _LOGGER.debug("[DISCOVERY] %s >> %s", self.target, Discover.DISCOVERY_QUERY)
-        encrypted_req = self.protocol.encrypt(req)
+        encrypted_req = TPLinkSmartHomeProtocol.encrypt(req)
+        new_req = binascii.unhexlify("020000010000000000000000463cb5d3")
         for i in range(self.discovery_packets):
             self.transport.sendto(encrypted_req[4:], self.target)  # type: ignore
+            self.transport.sendto(new_req, self.new_target)  # type: ignore
 
     def datagram_received(self, data, addr) -> None:
         """Handle discovery responses."""
@@ -72,11 +80,37 @@ def datagram_received(self, data, addr) -> None:
         if ip in self.discovered_devices:
             return
 
-        info = json.loads(self.protocol.decrypt(data))
+        if port == 9999:
+            info = json.loads(TPLinkSmartHomeProtocol.decrypt(data))
+            device_class = Discover._get_device_class(info)
+            device = device_class(ip)
+        else:
+            info = json.loads(data[16:])
+            device_class = Discover._get_new_device_class(info)
+            owner = Discover._get_new_owner(info)
+            if owner is not None:
+                owner_bin = bytes.fromhex(owner)
+
+            _LOGGER.debug(
+                "[DISCOVERY] Device owner is %s, empty owner is %s",
+                owner_bin,
+                self.emptyUser,
+            )
+            if owner is None or owner == "" or owner_bin == self.emptyUser:
+                _LOGGER.debug("[DISCOVERY] Device %s has no owner", ip)
+                device = device_class(ip, Auth())
+            elif (
+                self.authentication is not None
+                and owner_bin == self.authentication.owner()
+            ):
+                _LOGGER.debug("[DISCOVERY] Device %s has authenticated owner", ip)
+                device = device_class(ip, self.authentication)
+            else:
+                _LOGGER.debug("[DISCOVERY] Found %s with unknown owner %s", ip, owner)
+                return
+
         _LOGGER.debug("[DISCOVERY] %s << %s", ip, info)
 
-        device_class = Discover._get_device_class(info)
-        device = device_class(ip)
         asyncio.ensure_future(device.update())
 
         self.discovered_devices[ip] = device
@@ -133,6 +167,8 @@ class Discover:
 
     DISCOVERY_PORT = 9999
 
+    NEW_DISCOVERY_PORT = 20002
+
     DISCOVERY_QUERY = {
         "system": {"get_sysinfo": None},
         "emeter": {"get_realtime": None},
@@ -150,6 +186,7 @@ async def discover(
         discovery_packets=3,
         return_raw=False,
         interface=None,
+        authentication=None,
     ) -> Mapping[str, Union[SmartDevice, Dict]]:
         """Discover supported devices.
 
@@ -176,6 +213,7 @@ async def discover(
                 on_discovered=on_discovered,
                 discovery_packets=discovery_packets,
                 interface=interface,
+                authentication=authentication,
             ),
             local_addr=("0.0.0.0", 0),
         )
@@ -202,9 +240,9 @@ async def discover_single(host: str) -> SmartDevice:
         :rtype: SmartDevice
         :return: Object for querying/controlling found device.
         """
-        protocol = TPLinkSmartHomeProtocol()
+        protocol = TPLinkSmartHomeProtocol(host)
 
-        info = await protocol.query(host, Discover.DISCOVERY_QUERY)
+        info = await protocol.query(Discover.DISCOVERY_QUERY)
 
         device_class = Discover._get_device_class(info)
         if device_class is not None:
@@ -242,6 +280,33 @@ def _get_device_class(info: dict) -> Type[SmartDevice]:
 
         raise SmartDeviceException("Unknown device type: %s", type_)
 
+    @staticmethod
+    def _get_new_device_class(info: dict) -> Type[SmartDevice]:
+        """Find SmartDevice subclass given new discovery payload."""
+        if "result" not in info:
+            raise SmartDeviceException("No 'result' in discovery response")
+
+        if "device_type" not in info["result"]:
+            raise SmartDeviceException("No 'device_type' in discovery result")
+
+        dtype = info["result"]["device_type"]
+
+        if dtype == "IOT.SMARTPLUGSWITCH":
+            return SmartPlug
+
+        raise SmartDeviceException("Unknown device type: %s", dtype)
+
+    @staticmethod
+    def _get_new_owner(info: dict) -> Optional[str]:
+        """Find owner given new-style discovery payload."""
+        if "result" not in info:
+            raise SmartDeviceException("No 'result' in discovery response")
+
+        if "owner" not in info["result"]:
+            return None
+
+        return info["result"]["owner"]
+
 
 if __name__ == "__main__":
     logging.basicConfig(level=logging.INFO)
diff --git a/kasa/klapprotocol.py b/kasa/klapprotocol.py
new file mode 100755
index 000000000..7b901ce4c
--- /dev/null
+++ b/kasa/klapprotocol.py
@@ -0,0 +1,155 @@
+"""Implementation of the TP-Link Smart Home Protocol.
+
+Encryption/Decryption methods based on the works of
+Lubomir Stroetmann and Tobias Esser
+
+https://www.softscheck.com/en/reverse-engineering-tp-link-hs110/
+https://github.com/softScheck/tplink-smartplug/
+
+which are licensed under the Apache License, Version 2.0
+http://www.apache.org/licenses/LICENSE-2.0
+"""
+import asyncio
+import hashlib
+import logging
+import secrets
+
+import aiohttp
+from Crypto.Cipher import AES
+from Crypto.Util import Padding
+from yarl import URL
+
+from .auth import Auth
+from .exceptions import SmartDeviceException
+from .protocol import TPLinkProtocol
+
+_LOGGER = logging.getLogger(__name__)
+
+
+class TPLinkKLAP(TPLinkProtocol):
+    """Implementation of the KLAP encryption protocol.
+
+    KLAP is the name used in device discovery for TP-Link's new encryption
+    protocol, used by newer firmware versions.
+    """
+
+    def __init__(self, host: str, authentication: Auth = Auth()) -> None:
+        self.jar = aiohttp.CookieJar(unsafe=True, quote_cookie=False)
+        self.client_challenge = secrets.token_bytes(16)
+        self.authenticator = authentication.authenticator()
+        self.handshake_lock = asyncio.Lock()
+        self.handshake_done = False
+
+        super().__init__(host=host)
+
+        _LOGGER.debug("[KLAP] Created KLAP object for %s", self.host)
+
+    @staticmethod
+    def _sha256(payload: bytes) -> bytes:
+        return hashlib.sha256(payload).digest()
+
+    async def _handshake(self, session) -> None:
+        _LOGGER.debug("[KLAP] Starting handshake with %s", self.host)
+
+        # Handshake 1 has a payload of client_challenge
+        # and a response of 16 bytes, followed by sha256(clientBytes | authenticator)
+
+        url = f"http://{self.host}/app/handshake1"
+        resp = await session.post(url, data=self.client_challenge)
+        _LOGGER.debug("Got response of %d to handshake1", resp.status)
+        if resp.status != 200:
+            raise SmartDeviceException(
+                "Device responded with %d to handshake1" % resp.status
+            )
+
+        response = await resp.read()
+        self.server_challenge = response[0:16]
+        server_hash = response[16:]
+
+        _LOGGER.debug("Server bytes are: %s", self.server_challenge.hex())
+        _LOGGER.debug("Server hash is: %s", server_hash.hex())
+
+        # Check the response from the device
+        local_hash = self._sha256(self.client_challenge + self.authenticator)
+
+        if local_hash != server_hash:
+            _LOGGER.debug(
+                "Expected %s got %s in handshake1",
+                local_hash.hex(),
+                server_hash.hex(),
+            )
+            raise SmartDeviceException("Server response doesn't match our challenge")
+        else:
+            _LOGGER.debug("handshake1 hashes match")
+
+        # We need to include only the TP_SESSIONID cookie - aiohttp's cookie handling
+        # adds a bogus TIMEOUT cookie
+        cookie = session.cookie_jar.filter_cookies(url).get("TP_SESSIONID")
+        session.cookie_jar.clear()
+        session.cookie_jar.update_cookies({"TP_SESSIONID": cookie}, URL(url))
+        _LOGGER.debug("Cookie is %s", cookie)
+
+        # Handshake 2 has the following payload:
+        #    sha256(serverBytes | authenticator)
+        url = f"http://{self.host}/app/handshake2"
+        payload = self._sha256(self.server_challenge + self.authenticator)
+        resp = await session.post(url, data=payload)
+        _LOGGER.debug("Got response of %d to handshake2", resp.status)
+        if resp.status != 200:
+            raise SmartDeviceException(
+                "Device responded with %d to handshake2" % resp.status
+            )
+
+        # Done handshaking, now we need to compute the encryption keys
+        agreed = self.client_challenge + self.server_challenge + self.authenticator
+        self.encrypt_key = self._sha256(b"lsk" + agreed)[:16]
+        self.hmac_key = self._sha256(b"ldk" + agreed)[:28]
+        fulliv = self._sha256(b"iv" + agreed)
+        self.iv = fulliv[:12]
+        self.seq = int.from_bytes(fulliv[-4:], "big", signed=True)
+        self.handshake_done = True
+
+    def _encrypt(self, plaintext: bytes, iv: bytes, seq: int) -> bytes:
+        cipher = AES.new(self.encrypt_key, AES.MODE_CBC, iv)
+        ciphertext = cipher.encrypt(Padding.pad(plaintext, AES.block_size))
+        signature = self._sha256(
+            self.hmac_key + seq.to_bytes(4, "big", signed=True) + ciphertext
+        )
+        return signature + ciphertext
+
+    def _decrypt(self, payload: bytes, iv: bytes, seq: int) -> bytes:
+        cipher = AES.new(self.encrypt_key, AES.MODE_CBC, iv)
+        # In theory we should verify the hmac here too
+        return Padding.unpad(cipher.decrypt(payload[32:]), AES.block_size)
+
+    async def _ask(self, request: str) -> str:
+
+        try:
+            timeout = aiohttp.ClientTimeout(total=self.timeout)
+            session = aiohttp.ClientSession(cookie_jar=self.jar, timeout=timeout)
+
+            async with self.handshake_lock:
+                if not self.handshake_done:
+                    await self._handshake(session)
+
+            msg_seq = self.seq
+            msg_iv = self.iv + msg_seq.to_bytes(4, "big", signed=True)
+            payload = self._encrypt(request.encode("utf-8"), msg_iv, msg_seq)
+
+            url = f"http://{self.host}/app/request"
+            resp = await session.post(url, params={"seq": msg_seq}, data=payload)
+            _LOGGER.debug("Got response of %d to request", resp.status)
+
+            # If we failed with a security error, force a new handshake next time
+            if resp.status == 403:
+                self.handshake_done = False
+
+            if resp.status != 200:
+                raise SmartDeviceException(
+                    "Device responded with %d to request with seq %d"
+                    % (resp.status, msg_seq)
+                )
+            response = await resp.read()
+            return self._decrypt(response, msg_iv, msg_seq).decode("utf-8")
+        finally:
+            await session.close()
diff --git a/kasa/protocol.py b/kasa/protocol.py
index 6ee6f72d6..15d66dd84 100755
--- a/kasa/protocol.py
+++ b/kasa/protocol.py
@@ -21,18 +21,18 @@
 _LOGGER = logging.getLogger(__name__)
 
 
-class TPLinkSmartHomeProtocol:
-    """Implementation of the TP-Link Smart Home protocol."""
+class TPLinkProtocol:
+    """Base class for all TP-Link Smart Home communication."""
 
-    INITIALIZATION_VECTOR = 171
-    DEFAULT_PORT = 9999
     DEFAULT_TIMEOUT = 5
 
-    @staticmethod
-    async def query(host: str, request: Union[str, Dict], retry_count: int = 3) -> Dict:
+    def __init__(self, host: str) -> None:
+        self.host = host
+        self.timeout = TPLinkProtocol.DEFAULT_TIMEOUT
+
+    async def query(self, request: Union[str, Dict], retry_count: int = 3) -> Dict:
         """Request information from a TP-Link SmartHome Device.
 
-        :param str host: host name or ip address of the device
         :param request: command to send to the device (can be either dict or
         json string)
         :param retry_count: how many retries to do in case of failure
@@ -41,32 +41,10 @@ async def query(host: str, request: Union[str, Dict], retry_count: int = 3) -> D
         if isinstance(request, dict):
             request = json.dumps(request)
 
-        timeout = TPLinkSmartHomeProtocol.DEFAULT_TIMEOUT
-        writer = None
         for retry in range(retry_count + 1):
             try:
-                task = asyncio.open_connection(
-                    host, TPLinkSmartHomeProtocol.DEFAULT_PORT
-                )
-                reader, writer = await asyncio.wait_for(task, timeout=timeout)
                 _LOGGER.debug("> (%i) %s", len(request), request)
-                writer.write(TPLinkSmartHomeProtocol.encrypt(request))
-                await writer.drain()
-
-                buffer = bytes()
-                # Some devices send responses with a length header of 0 and
-                # terminate with a zero size chunk. Others send the length and
-                # will hang if we attempt to read more data.
-                length = -1
-                while True:
-                    chunk = await reader.read(4096)
-                    if length == -1:
-                        length = struct.unpack(">I", chunk[0:4])[0]
-                    buffer += chunk
-                    if (length > 0 and len(buffer) >= length + 4) or not chunk:
-                        break
-
-                response = TPLinkSmartHomeProtocol.decrypt(buffer[4:])
+                response = await self._ask(request)
                 json_payload = json.loads(response)
                 _LOGGER.debug("< (%i) %s", len(response), pf(json_payload))
 
@@ -81,10 +59,48 @@ async def query(host: str, request: Union[str, Dict], retry_count: int = 3) -> D
 
                 _LOGGER.debug("Unable to query the device, retrying: %s", ex)
 
-            finally:
-                if writer:
-                    writer.close()
-                    await writer.wait_closed()
+        raise SmartDeviceException("Not reached")
+
+    async def _ask(self, request: str) -> str:
+        raise SmartDeviceException("ask should be overridden")
+
+
+class TPLinkSmartHomeProtocol(TPLinkProtocol):
+    """Implementation of the TP-Link Smart Home protocol."""
+
+    INITIALIZATION_VECTOR = 171
+    DEFAULT_PORT = 9999
+
+    def __init__(self, host: str):
+        super().__init__(host=host)
+
+    async def _ask(self, request: str) -> str:
+        writer = None
+        try:
+            task = asyncio.open_connection(self.host, self.DEFAULT_PORT)
+            reader, writer = await asyncio.wait_for(task, timeout=self.timeout)
+            writer.write(TPLinkSmartHomeProtocol.encrypt(request))
+            await writer.drain()
+
+            buffer = bytes()
+            # Some devices send responses with a length header of 0 and
+            # terminate with a zero size chunk. Others send the length and
+            # will hang if we attempt to read more data.
+            length = -1
+            while True:
+                chunk = await reader.read(4096)
+                if length == -1:
+                    length = struct.unpack(">I", chunk[0:4])[0]
+                buffer += chunk
+                if (length > 0 and len(buffer) >= length + 4) or not chunk:
+                    break
+
+            return TPLinkSmartHomeProtocol.decrypt(buffer[4:])
+
+        finally:
+            if writer:
+                writer.close()
+                await writer.wait_closed()
 
         # make mypy happy, this should never be reached..
         raise SmartDeviceException("Query reached somehow to unreachable")
diff --git a/kasa/smartdevice.py b/kasa/smartdevice.py
index 19589bbad..a1b159559 100755
--- a/kasa/smartdevice.py
+++ b/kasa/smartdevice.py
@@ -17,9 +17,11 @@
 from dataclasses import dataclass
 from datetime import datetime, timedelta
 from enum import Enum
-from typing import Any, Dict, List, Optional
+from typing import Any, Dict, List, Optional, Union
 
+from .auth import Auth
 from .exceptions import SmartDeviceException
+from .klapprotocol import TPLinkKLAP
 from .protocol import TPLinkSmartHomeProtocol
 
 _LOGGER = logging.getLogger(__name__)
@@ -213,14 +215,20 @@ class SmartDevice:
 
     """
 
-    def __init__(self, host: str) -> None:
+    protocol: Union[TPLinkSmartHomeProtocol, TPLinkKLAP]
+
+    def __init__(self, host: str, authentication: Optional[Auth] = None) -> None:
         """Create a new SmartDevice instance.
 
         :param str host: host name or ip address on which the device listens
         """
         self.host = host
 
-        self.protocol = TPLinkSmartHomeProtocol()
+        if authentication is None:
+            self.protocol = TPLinkSmartHomeProtocol(host)
+        else:
+            self.protocol = TPLinkKLAP(host, authentication)
+
         self.emeter_type = "emeter"
         _LOGGER.debug("Initializing %s of type %s", self.host, type(self))
         self._device_type = DeviceType.Unknown
@@ -255,7 +263,7 @@ async def _query_helper(
         request = self._create_request(target, cmd, arg, child_ids)
 
         try:
-            response = await self.protocol.query(host=self.host, request=request)
+            response = await self.protocol.query(request=request)
         except Exception as ex:
             raise SmartDeviceException(f"Communication error on {target}:{cmd}") from ex
 
@@ -297,10 +305,17 @@ async def update(self):
         req = {}
         req.update(self._create_request("system", "get_sysinfo"))
 
-        # Check for emeter if we were never updated, or if the device has emeter
-        if self._last_update is None or self.has_emeter:
+        # Newer HS100 firmware doesn't like emeter requests
+        if self._last_update is None:
+            self._last_update = await self.protocol.query(request = req)
+            self._sys_info = self._last_update["system"]["get_sysinfo"]
+            if not self.has_emeter:
+            	return
+
+        if self.has_emeter:
             req.update(self._create_emeter_request())
-        self._last_update = await self.protocol.query(self.host, req)
+
+        self._last_update = await self.protocol.query(request=req)
         # TODO: keep accessible for tests
         self._sys_info = self._last_update["system"]["get_sysinfo"]
 
diff --git a/kasa/smartplug.py b/kasa/smartplug.py
index d23bc9396..018468b37 100644
--- a/kasa/smartplug.py
+++ b/kasa/smartplug.py
@@ -36,8 +36,8 @@ class SmartPlug(SmartDevice):
     For more examples, see the :class:`SmartDevice` class.
     """
 
-    def __init__(self, host: str) -> None:
-        super().__init__(host)
+    def __init__(self, host: str, authentication=None) -> None:
+        super().__init__(host, authentication)
         self.emeter_type = "emeter"
         self._device_type = DeviceType.Plug
 
diff --git a/kasa/tests/newfakes.py b/kasa/tests/newfakes.py
index 55c3e00cb..986bc2d98 100644
--- a/kasa/tests/newfakes.py
+++ b/kasa/tests/newfakes.py
@@ -415,7 +415,7 @@ def light_state(self, x, *args):
         },
     }
 
-    async def query(self, host, request, port=9999):
+    async def query(self, request, port=9999):
         proto = self.proto
 
         # collect child ids from context
diff --git a/kasa/tests/test_protocol.py b/kasa/tests/test_protocol.py
index 51c01d49d..3d07507f4 100644
--- a/kasa/tests/test_protocol.py
+++ b/kasa/tests/test_protocol.py
@@ -21,7 +21,8 @@ def aio_mock_writer(_, __):
 
     conn = mocker.patch("asyncio.open_connection", side_effect=aio_mock_writer)
     with pytest.raises(SmartDeviceException):
-        await TPLinkSmartHomeProtocol.query("127.0.0.1", {}, retry_count=retry_count)
+        protocol = TPLinkSmartHomeProtocol("127.0.0.1")
+        await protocol.query({}, retry_count=retry_count)
 
     assert conn.call_count == retry_count + 1
 
diff --git a/poetry.lock b/poetry.lock
index f27a54d06..2528df61a 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,18 +1,37 @@
 [[package]]
+name = "aiohttp"
+version = "3.7.2"
+description = "Async http client/server framework (asyncio)"
 category = "main"
-description = "A configurable sidebar-enabled Sphinx theme"
+optional = false
+python-versions = ">=3.6"
+
+[package.dependencies]
+async-timeout = ">=3.0,<4.0"
+attrs = ">=17.3.0"
+chardet = ">=2.0,<4.0"
+multidict = ">=4.5,<7.0"
+typing-extensions = ">=3.6.5"
+yarl = ">=1.0,<2.0"
+
+[package.extras]
+speedups = ["aiodns", "brotlipy", "cchardet"]
+
+[[package]]
 name = "alabaster"
+version = "0.7.12"
+description = "A configurable sidebar-enabled Sphinx theme"
+category = "main"
 optional = true
 python-versions = "*"
-version = "0.7.12"
 
 [[package]]
-category = "main"
-description = "High level compatibility layer for multiple asynchronous event loop implementations"
 name = "anyio"
+version = "1.4.0"
+description = "High level compatibility layer for multiple asynchronous event loop implementations"
+category = "main"
 optional = false
 python-versions = ">=3.5.3"
-version = "1.4.0"
 
 [package.dependencies]
 async-generator = "*"
@@ -20,34 +39,42 @@ idna = ">=2.8"
 sniffio = ">=1.1"
 
 [package.extras]
-curio = ["curio (>=0.9)"]
+curio = ["curio (==0.9)", "curio (>=0.9)"]
 doc = ["sphinx-rtd-theme", "sphinx-autodoc-typehints (>=1.2.0)"]
 test = ["coverage (>=4.5)", "hypothesis (>=4.0)", "pytest (>=3.7.2)", "uvloop"]
 trio = ["trio (>=0.12)"]
 
 [[package]]
-category = "dev"
-description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
 name = "appdirs"
+version = "1.4.4"
+description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.4.4"
 
 [[package]]
-category = "main"
-description = "Async generators and context managers for Python 3.5+"
 name = "async-generator"
+version = "1.10"
+description = "Async generators and context managers for Python 3.5+"
+category = "main"
 optional = false
 python-versions = ">=3.5"
-version = "1.10"
 
 [[package]]
+name = "async-timeout"
+version = "3.0.1"
+description = "Timeout context manager for asyncio programs"
 category = "main"
-description = "A simple anyio-compatible fork of Click, for powerful command line utilities."
+optional = false
+python-versions = ">=3.5.3"
+
+[[package]]
 name = "asyncclick"
+version = "7.0.9"
+description = "A simple anyio-compatible fork of Click, for powerful command line utilities."
+category = "main"
 optional = false
 python-versions = ">=3.6"
-version = "7.0.9"
 
 [package.dependencies]
 anyio = "*"
@@ -57,21 +84,20 @@ dev = ["coverage", "pytest-runner", "pytest-trio", "pytest (>=3)", "sphinx", "to
 docs = ["sphinx"]
 
 [[package]]
-category = "dev"
-description = "Atomic file writes."
-marker = "sys_platform == \"win32\""
 name = "atomicwrites"
+version = "1.4.0"
+description = "Atomic file writes."
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.4.0"
 
 [[package]]
-category = "dev"
-description = "Classes Without Boilerplate"
 name = "attrs"
+version = "19.3.0"
+description = "Classes Without Boilerplate"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "19.3.0"
 
 [package.extras]
 azure-pipelines = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "pytest-azurepipelines"]
@@ -80,130 +106,129 @@ docs = ["sphinx", "zope.interface"]
 tests = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
 
 [[package]]
-category = "main"
-description = "Internationalization utilities"
 name = "babel"
+version = "2.8.0"
+description = "Internationalization utilities"
+category = "main"
 optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.8.0"
 
 [package.dependencies]
 pytz = ">=2015.7"
 
 [[package]]
-category = "main"
-description = "Python package for providing Mozilla's CA Bundle."
 name = "certifi"
+version = "2020.6.20"
+description = "Python package for providing Mozilla's CA Bundle."
+category = "main"
 optional = false
 python-versions = "*"
-version = "2020.6.20"
 
 [[package]]
-category = "dev"
-description = "Validate configuration and produce human readable error messages."
 name = "cfgv"
+version = "3.1.0"
+description = "Validate configuration and produce human readable error messages."
+category = "dev"
 optional = false
 python-versions = ">=3.6.1"
-version = "3.1.0"
 
 [[package]]
-category = "main"
-description = "Universal encoding detector for Python 2 and 3"
 name = "chardet"
+version = "3.0.4"
+description = "Universal encoding detector for Python 2 and 3"
+category = "main"
 optional = false
 python-versions = "*"
-version = "3.0.4"
 
 [[package]]
-category = "dev"
-description = "Hosted coverage reports for GitHub, Bitbucket and Gitlab"
 name = "codecov"
+version = "2.1.8"
+description = "Hosted coverage reports for GitHub, Bitbucket and Gitlab"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.1.8"
 
 [package.dependencies]
 coverage = "*"
 requests = ">=2.7.9"
 
 [[package]]
-category = "main"
-description = "Cross-platform colored terminal text."
-marker = "sys_platform == \"win32\" or platform_system == \"Windows\""
 name = "colorama"
+version = "0.4.3"
+description = "Cross-platform colored terminal text."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "0.4.3"
 
 [[package]]
-category = "dev"
-description = "Code coverage measurement for Python"
 name = "coverage"
+version = "5.2.1"
+description = "Code coverage measurement for Python"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
-version = "5.2.1"
 
 [package.extras]
 toml = ["toml"]
 
 [[package]]
-category = "dev"
-description = "Distribution utilities"
 name = "distlib"
+version = "0.3.1"
+description = "Distribution utilities"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.3.1"
 
 [[package]]
-category = "main"
-description = "Docutils -- Python Documentation Utilities"
 name = "docutils"
+version = "0.16"
+description = "Docutils -- Python Documentation Utilities"
+category = "main"
 optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "0.16"
 
 [[package]]
-category = "dev"
-description = "A platform independent file lock."
 name = "filelock"
+version = "3.0.12"
+description = "A platform independent file lock."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "3.0.12"
 
 [[package]]
-category = "dev"
-description = "File identification library for Python"
 name = "identify"
+version = "1.4.25"
+description = "File identification library for Python"
+category = "dev"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
-version = "1.4.25"
 
 [package.extras]
 license = ["editdistance"]
 
 [[package]]
-category = "main"
-description = "Internationalized Domain Names in Applications (IDNA)"
 name = "idna"
+version = "2.10"
+description = "Internationalized Domain Names in Applications (IDNA)"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.10"
 
 [[package]]
-category = "main"
-description = "Getting image size from png/jpeg/jpeg2000/gif file"
 name = "imagesize"
+version = "1.2.0"
+description = "Getting image size from png/jpeg/jpeg2000/gif file"
+category = "main"
 optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.2.0"
 
 [[package]]
-category = "main"
-description = "Read metadata from Python packages"
 name = "importlib-metadata"
+version = "1.7.0"
+description = "Read metadata from Python packages"
+category = "main"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
-version = "1.7.0"
 
 [package.dependencies]
 zipp = ">=0.5"
@@ -213,12 +238,12 @@ docs = ["sphinx", "rst.linker"]
 testing = ["packaging", "pep517", "importlib-resources (>=1.3)"]
 
 [[package]]
-category = "main"
-description = "A very fast and expressive template engine."
 name = "jinja2"
+version = "2.11.2"
+description = "A very fast and expressive template engine."
+category = "main"
 optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.11.2"
 
 [package.dependencies]
 MarkupSafe = ">=0.23"
@@ -227,154 +252,162 @@ MarkupSafe = ">=0.23"
 i18n = ["Babel (>=0.8)"]
 
 [[package]]
-category = "main"
-description = "Markdown and reStructuredText in a single file."
 name = "m2r"
+version = "0.2.1"
+description = "Markdown and reStructuredText in a single file."
+category = "main"
 optional = true
 python-versions = "*"
-version = "0.2.1"
 
 [package.dependencies]
 docutils = "*"
 mistune = "*"
 
 [[package]]
-category = "main"
-description = "Safely add untrusted strings to HTML/XML markup."
 name = "markupsafe"
+version = "1.1.1"
+description = "Safely add untrusted strings to HTML/XML markup."
+category = "main"
 optional = true
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
-version = "1.1.1"
 
 [[package]]
-category = "main"
-description = "The fastest markdown parser in pure Python"
 name = "mistune"
+version = "0.8.4"
+description = "The fastest markdown parser in pure Python"
+category = "main"
 optional = true
 python-versions = "*"
-version = "0.8.4"
 
 [[package]]
-category = "dev"
-description = "More routines for operating on iterables, beyond itertools"
 name = "more-itertools"
+version = "8.4.0"
+description = "More routines for operating on iterables, beyond itertools"
+category = "dev"
+optional = false
+python-versions = ">=3.5"
+
+[[package]]
+name = "multidict"
+version = "5.0.2"
+description = "multidict implementation"
+category = "main"
 optional = false
 python-versions = ">=3.5"
-version = "8.4.0"
 
 [[package]]
-category = "dev"
-description = "Node.js virtual environment builder"
 name = "nodeenv"
+version = "1.4.0"
+description = "Node.js virtual environment builder"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.4.0"
 
 [[package]]
-category = "main"
-description = "Core utilities for Python packages"
 name = "packaging"
+version = "20.4"
+description = "Core utilities for Python packages"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "20.4"
 
 [package.dependencies]
 pyparsing = ">=2.0.2"
 six = "*"
 
 [[package]]
-category = "dev"
-description = "plugin and hook calling mechanisms for python"
 name = "pluggy"
+version = "0.13.1"
+description = "plugin and hook calling mechanisms for python"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "0.13.1"
 
 [package.dependencies]
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = ">=0.12"
+importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 
 [package.extras]
 dev = ["pre-commit", "tox"]
 
 [[package]]
-category = "dev"
-description = "A framework for managing and maintaining multi-language pre-commit hooks."
 name = "pre-commit"
+version = "2.6.0"
+description = "A framework for managing and maintaining multi-language pre-commit hooks."
+category = "dev"
 optional = false
 python-versions = ">=3.6.1"
-version = "2.6.0"
 
 [package.dependencies]
 cfgv = ">=2.0.0"
 identify = ">=1.0.0"
+importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
 nodeenv = ">=0.11.1"
 pyyaml = ">=5.1"
 toml = "*"
 virtualenv = ">=20.0.8"
 
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = "*"
-
 [[package]]
-category = "dev"
-description = "library with cross-python path, ini-parsing, io, code, log facilities"
 name = "py"
+version = "1.9.0"
+description = "library with cross-python path, ini-parsing, io, code, log facilities"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.9.0"
 
 [[package]]
+name = "pycryptodome"
+version = "3.9.9"
+description = "Cryptographic library for Python"
 category = "main"
-description = "Pygments is a syntax highlighting package written in Python."
+optional = false
+python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+
+[[package]]
 name = "pygments"
+version = "2.6.1"
+description = "Pygments is a syntax highlighting package written in Python."
+category = "main"
 optional = true
 python-versions = ">=3.5"
-version = "2.6.1"
 
 [[package]]
-category = "main"
-description = "Python parsing module"
 name = "pyparsing"
+version = "2.4.7"
+description = "Python parsing module"
+category = "main"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "2.4.7"
 
 [[package]]
-category = "dev"
-description = "pytest: simple powerful testing with Python"
 name = "pytest"
+version = "5.4.3"
+description = "pytest: simple powerful testing with Python"
+category = "dev"
 optional = false
 python-versions = ">=3.5"
-version = "5.4.3"
 
 [package.dependencies]
-atomicwrites = ">=1.0"
+atomicwrites = {version = ">=1.0", markers = "sys_platform == \"win32\""}
 attrs = ">=17.4.0"
-colorama = "*"
+colorama = {version = "*", markers = "sys_platform == \"win32\""}
+importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 more-itertools = ">=4.0.0"
 packaging = "*"
 pluggy = ">=0.12,<1.0"
 py = ">=1.5.0"
 wcwidth = "*"
 
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = ">=0.12"
-
 [package.extras]
-checkqa-mypy = ["mypy (v0.761)"]
+checkqa-mypy = ["mypy (==v0.761)"]
 testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]
 
 [[package]]
-category = "dev"
-description = "Pytest support for asyncio."
 name = "pytest-asyncio"
+version = "0.14.0"
+description = "Pytest support for asyncio."
+category = "dev"
 optional = false
 python-versions = ">= 3.5"
-version = "0.14.0"
 
 [package.dependencies]
 pytest = ">=5.4.0"
@@ -383,38 +416,38 @@ pytest = ">=5.4.0"
 testing = ["async-generator (>=1.3)", "coverage", "hypothesis (>=5.7.1)"]
 
 [[package]]
-category = "dev"
-description = "Formatting PyTest output for Azure Pipelines UI"
 name = "pytest-azurepipelines"
+version = "0.8.0"
+description = "Formatting PyTest output for Azure Pipelines UI"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "0.8.0"
 
 [package.dependencies]
 pytest = ">=3.5.0"
 
 [[package]]
-category = "dev"
-description = "Pytest plugin for measuring coverage."
 name = "pytest-cov"
+version = "2.10.0"
+description = "Pytest plugin for measuring coverage."
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.10.0"
 
 [package.dependencies]
 coverage = ">=4.4"
 pytest = ">=4.6"
 
 [package.extras]
-testing = ["fields", "hunter", "process-tests (2.0.2)", "six", "pytest-xdist", "virtualenv"]
+testing = ["fields", "hunter", "process-tests (==2.0.2)", "six", "pytest-xdist", "virtualenv"]
 
 [[package]]
-category = "dev"
-description = "Thin-wrapper around the mock package for easier use with pytest"
 name = "pytest-mock"
+version = "3.2.0"
+description = "Thin-wrapper around the mock package for easier use with pytest"
+category = "dev"
 optional = false
 python-versions = ">=3.5"
-version = "3.2.0"
 
 [package.dependencies]
 pytest = ">=2.7"
@@ -423,12 +456,12 @@ pytest = ">=2.7"
 dev = ["pre-commit", "tox", "pytest-asyncio"]
 
 [[package]]
-category = "dev"
-description = "pytest-sugar is a plugin for pytest that changes the default look and feel of pytest (e.g. progressbar, show tests that fail instantly)."
 name = "pytest-sugar"
+version = "0.9.4"
+description = "pytest-sugar is a plugin for pytest that changes the default look and feel of pytest (e.g. progressbar, show tests that fail instantly)."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.9.4"
 
 [package.dependencies]
 packaging = ">=14.1"
@@ -436,28 +469,28 @@ pytest = ">=2.9"
 termcolor = ">=1.1.0"
 
 [[package]]
-category = "main"
-description = "World timezone definitions, modern and historical"
 name = "pytz"
+version = "2020.1"
+description = "World timezone definitions, modern and historical"
+category = "main"
 optional = true
 python-versions = "*"
-version = "2020.1"
 
 [[package]]
-category = "dev"
-description = "YAML parser and emitter for Python"
 name = "pyyaml"
+version = "5.3.1"
+description = "YAML parser and emitter for Python"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "5.3.1"
 
 [[package]]
-category = "main"
-description = "Python HTTP for Humans."
 name = "requests"
+version = "2.24.0"
+description = "Python HTTP for Humans."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.24.0"
 
 [package.dependencies]
 certifi = ">=2017.4.17"
@@ -467,51 +500,50 @@ urllib3 = ">=1.21.1,<1.25.0 || >1.25.0,<1.25.1 || >1.25.1,<1.26"
 
 [package.extras]
 security = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)"]
-socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7)", "win-inet-pton"]
+socks = ["PySocks (>=1.5.6,!=1.5.7)", "win-inet-pton"]
 
 [[package]]
-category = "main"
-description = "Python 2 and 3 compatibility utilities"
 name = "six"
+version = "1.15.0"
+description = "Python 2 and 3 compatibility utilities"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "1.15.0"
 
 [[package]]
-category = "main"
-description = "Sniff out which async library your code is running under"
 name = "sniffio"
+version = "1.1.0"
+description = "Sniff out which async library your code is running under"
+category = "main"
 optional = false
 python-versions = ">=3.5"
-version = "1.1.0"
 
 [[package]]
-category = "main"
-description = "This package provides 26 stemmers for 25 languages generated from Snowball algorithms."
 name = "snowballstemmer"
+version = "2.0.0"
+description = "This package provides 26 stemmers for 25 languages generated from Snowball algorithms."
+category = "main"
 optional = true
 python-versions = "*"
-version = "2.0.0"
 
 [[package]]
-category = "main"
-description = "Python documentation generator"
 name = "sphinx"
+version = "3.1.2"
+description = "Python documentation generator"
+category = "main"
 optional = true
 python-versions = ">=3.5"
-version = "3.1.2"
 
 [package.dependencies]
-Jinja2 = ">=2.3"
-Pygments = ">=2.0"
 alabaster = ">=0.7,<0.8"
 babel = ">=1.3"
-colorama = ">=0.3.5"
+colorama = {version = ">=0.3.5", markers = "sys_platform == \"win32\""}
 docutils = ">=0.12"
 imagesize = "*"
+Jinja2 = ">=2.3"
 packaging = "*"
+Pygments = ">=2.0"
 requests = ">=2.5.0"
-setuptools = "*"
 snowballstemmer = ">=1.1"
 sphinxcontrib-applehelp = "*"
 sphinxcontrib-devhelp = "*"
@@ -526,12 +558,12 @@ lint = ["flake8 (>=3.5.0)", "flake8-import-order", "mypy (>=0.780)", "docutils-s
 test = ["pytest", "pytest-cov", "html5lib", "typed-ast", "cython"]
 
 [[package]]
-category = "main"
-description = "Read the Docs theme for Sphinx"
 name = "sphinx-rtd-theme"
+version = "0.5.0"
+description = "Read the Docs theme for Sphinx"
+category = "main"
 optional = true
 python-versions = "*"
-version = "0.5.0"
 
 [package.dependencies]
 sphinx = "*"
@@ -540,114 +572,115 @@ sphinx = "*"
 dev = ["transifex-client", "sphinxcontrib-httpdomain", "bump2version"]
 
 [[package]]
-category = "main"
-description = "sphinxcontrib-applehelp is a sphinx extension which outputs Apple help books"
 name = "sphinxcontrib-applehelp"
+version = "1.0.2"
+description = "sphinxcontrib-applehelp is a sphinx extension which outputs Apple help books"
+category = "main"
 optional = true
 python-versions = ">=3.5"
-version = "1.0.2"
 
 [package.extras]
 lint = ["flake8", "mypy", "docutils-stubs"]
 test = ["pytest"]
 
 [[package]]
-category = "main"
-description = "sphinxcontrib-devhelp is a sphinx extension which outputs Devhelp document."
 name = "sphinxcontrib-devhelp"
+version = "1.0.2"
+description = "sphinxcontrib-devhelp is a sphinx extension which outputs Devhelp document."
+category = "main"
 optional = true
 python-versions = ">=3.5"
-version = "1.0.2"
 
 [package.extras]
 lint = ["flake8", "mypy", "docutils-stubs"]
 test = ["pytest"]
 
 [[package]]
-category = "main"
-description = "sphinxcontrib-htmlhelp is a sphinx extension which renders HTML help files"
 name = "sphinxcontrib-htmlhelp"
+version = "1.0.3"
+description = "sphinxcontrib-htmlhelp is a sphinx extension which renders HTML help files"
+category = "main"
 optional = true
 python-versions = ">=3.5"
-version = "1.0.3"
 
 [package.extras]
 lint = ["flake8", "mypy", "docutils-stubs"]
 test = ["pytest", "html5lib"]
 
 [[package]]
-category = "main"
-description = "A sphinx extension which renders display math in HTML via JavaScript"
 name = "sphinxcontrib-jsmath"
+version = "1.0.1"
+description = "A sphinx extension which renders display math in HTML via JavaScript"
+category = "main"
 optional = true
 python-versions = ">=3.5"
-version = "1.0.1"
 
 [package.extras]
 test = ["pytest", "flake8", "mypy"]
 
 [[package]]
-category = "main"
-description = "Sphinx extension to include program output"
 name = "sphinxcontrib-programoutput"
+version = "0.16"
+description = "Sphinx extension to include program output"
+category = "main"
 optional = true
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*"
-version = "0.16"
 
 [package.dependencies]
 Sphinx = ">=1.7.0"
 
 [[package]]
-category = "main"
-description = "sphinxcontrib-qthelp is a sphinx extension which outputs QtHelp document."
 name = "sphinxcontrib-qthelp"
+version = "1.0.3"
+description = "sphinxcontrib-qthelp is a sphinx extension which outputs QtHelp document."
+category = "main"
 optional = true
 python-versions = ">=3.5"
-version = "1.0.3"
 
 [package.extras]
 lint = ["flake8", "mypy", "docutils-stubs"]
 test = ["pytest"]
 
 [[package]]
-category = "main"
-description = "sphinxcontrib-serializinghtml is a sphinx extension which outputs \"serialized\" HTML files (json and pickle)."
 name = "sphinxcontrib-serializinghtml"
+version = "1.1.4"
+description = "sphinxcontrib-serializinghtml is a sphinx extension which outputs \"serialized\" HTML files (json and pickle)."
+category = "main"
 optional = true
 python-versions = ">=3.5"
-version = "1.1.4"
 
 [package.extras]
 lint = ["flake8", "mypy", "docutils-stubs"]
 test = ["pytest"]
 
 [[package]]
-category = "dev"
-description = "ANSII Color formatting for output in terminal."
 name = "termcolor"
+version = "1.1.0"
+description = "ANSII Color formatting for output in terminal."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.1.0"
 
 [[package]]
-category = "dev"
-description = "Python Library for Tom's Obvious, Minimal Language"
 name = "toml"
+version = "0.10.1"
+description = "Python Library for Tom's Obvious, Minimal Language"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.10.1"
 
 [[package]]
-category = "dev"
-description = "tox is a generic virtualenv management and test command line tool"
 name = "tox"
+version = "3.18.1"
+description = "tox is a generic virtualenv management and test command line tool"
+category = "dev"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
-version = "3.18.1"
 
 [package.dependencies]
-colorama = ">=0.4.1"
+colorama = {version = ">=0.4.1", markers = "platform_system == \"Windows\""}
 filelock = ">=3.0.0"
+importlib-metadata = {version = ">=0.12,<2", markers = "python_version < \"3.8\""}
 packaging = ">=14"
 pluggy = ">=0.12.0"
 py = ">=1.4.17"
@@ -655,72 +688,73 @@ six = ">=1.14.0"
 toml = ">=0.9.4"
 virtualenv = ">=16.0.0,<20.0.0 || >20.0.0,<20.0.1 || >20.0.1,<20.0.2 || >20.0.2,<20.0.3 || >20.0.3,<20.0.4 || >20.0.4,<20.0.5 || >20.0.5,<20.0.6 || >20.0.6,<20.0.7 || >20.0.7"
 
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = ">=0.12,<2"
-
 [package.extras]
 docs = ["pygments-github-lexers (>=0.0.5)", "sphinx (>=2.0.0)", "sphinxcontrib-autoprogram (>=0.1.5)", "towncrier (>=18.5.0)"]
 testing = ["flaky (>=3.4.0)", "freezegun (>=0.3.11)", "pathlib2 (>=2.3.3)", "psutil (>=5.6.1)", "pytest (>=4.0.0)", "pytest-cov (>=2.5.1)", "pytest-mock (>=1.10.0)", "pytest-randomly (>=1.0.0)", "pytest-xdist (>=1.22.2)"]
 
 [[package]]
+name = "typing-extensions"
+version = "3.7.4.3"
+description = "Backported and Experimental Type Hints for Python 3.5+"
 category = "main"
-description = "HTTP library with thread-safe connection pooling, file post, and more."
+optional = false
+python-versions = "*"
+
+[[package]]
 name = "urllib3"
+version = "1.25.10"
+description = "HTTP library with thread-safe connection pooling, file post, and more."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
-version = "1.25.10"
 
 [package.extras]
 brotli = ["brotlipy (>=0.6.0)"]
 secure = ["certifi", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "pyOpenSSL (>=0.14)", "ipaddress"]
-socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7,<2.0)"]
+socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
 
 [[package]]
-category = "dev"
-description = "Virtual Python Environment builder"
 name = "virtualenv"
+version = "20.0.28"
+description = "Virtual Python Environment builder"
+category = "dev"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
-version = "20.0.28"
 
 [package.dependencies]
 appdirs = ">=1.4.3,<2"
 distlib = ">=0.3.1,<1"
 filelock = ">=3.0.0,<4"
+importlib-metadata = {version = ">=0.12,<2", markers = "python_version < \"3.8\""}
 six = ">=1.9.0,<2"
 
-[package.dependencies.importlib-metadata]
-python = "<3.8"
-version = ">=0.12,<2"
-
 [package.extras]
 docs = ["proselint (>=0.10.2)", "sphinx (>=3)", "sphinx-argparse (>=0.2.5)", "sphinx-rtd-theme (>=0.4.3)", "towncrier (>=19.9.0rc1)"]
 testing = ["coverage (>=5)", "coverage-enable-subprocess (>=1)", "flaky (>=3)", "pytest (>=4)", "pytest-env (>=0.6.2)", "pytest-freezegun (>=0.4.1)", "pytest-mock (>=2)", "pytest-randomly (>=1)", "pytest-timeout (>=1)", "pytest-xdist (>=1.31.0)", "packaging (>=20.0)", "xonsh (>=0.9.16)"]
 
 [[package]]
-category = "dev"
-description = "# Voluptuous is a Python data validation library"
 name = "voluptuous"
+version = "0.11.7"
+description = "# Voluptuous is a Python data validation library"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.11.7"
 
 [[package]]
-category = "dev"
-description = "Measures the displayed width of unicode strings in a terminal"
 name = "wcwidth"
+version = "0.2.5"
+description = "Measures the displayed width of unicode strings in a terminal"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.2.5"
 
 [[package]]
-category = "dev"
-description = "A rewrite of the builtin doctest module"
 name = "xdoctest"
+version = "0.13.0"
+description = "A rewrite of the builtin doctest module"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.13.0"
 
 [package.dependencies]
 six = "*"
@@ -731,12 +765,25 @@ optional = ["pygments", "colorama"]
 tests = ["pytest", "pytest-cov", "codecov", "scikit-build", "cmake", "ninja", "pybind11"]
 
 [[package]]
+name = "yarl"
+version = "1.6.3"
+description = "Yet another URL library"
 category = "main"
-description = "Backport of pathlib-compatible object wrapper for zip files"
-name = "zipp"
 optional = false
 python-versions = ">=3.6"
+
+[package.dependencies]
+idna = ">=2.0"
+multidict = ">=4.0"
+typing-extensions = {version = ">=3.7.4", markers = "python_version < \"3.8\""}
+
+[[package]]
+name = "zipp"
 version = "3.1.0"
+description = "Backport of pathlib-compatible object wrapper for zip files"
+category = "main"
+optional = false
+python-versions = ">=3.6"
 
 [package.extras]
 docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
@@ -746,10 +793,46 @@ testing = ["jaraco.itertools", "func-timeout"]
 docs = ["sphinx", "sphinx_rtd_theme", "m2r", "sphinxcontrib-programoutput"]
 
 [metadata]
-content-hash = "c73c14c7f8588e3be3cd04a1b8cdcbcc32f2d042d8e30b58b7084b2b544ddb90"
+lock-version = "1.1"
 python-versions = "^3.7"
+content-hash = "ee0bcce42ea453dff32dd36ba2bbcf6c3fb643cf1738d34240ab665655b5f0f7"
 
 [metadata.files]
+aiohttp = [
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+    {file = "aiohttp-3.7.2.tar.gz", hash = "sha256:c6da1af59841e6d43255d386a2c4bfb59c0a3b262bdb24325cc969d211be6070"},
+]
 alabaster = [
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@@ -766,6 +849,10 @@ async-generator = [
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 ]
+async-timeout = [
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+]
 asyncclick = [
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 ]
@@ -916,8 +1003,48 @@ more-itertools = [
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 ]
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+    {file = "yarl-1.6.3-cp38-cp38-manylinux2014_ppc64le.whl", hash = "sha256:324ba3d3c6fee56e2e0b0d09bf5c73824b9f08234339d2b788af65e60040c959"},
+    {file = "yarl-1.6.3-cp38-cp38-manylinux2014_s390x.whl", hash = "sha256:e6b5460dc5ad42ad2b36cca524491dfcaffbfd9c8df50508bddc354e787b8dc2"},
+    {file = "yarl-1.6.3-cp38-cp38-manylinux2014_x86_64.whl", hash = "sha256:6d6283d8e0631b617edf0fd726353cb76630b83a089a40933043894e7f6721e2"},
+    {file = "yarl-1.6.3-cp38-cp38-win32.whl", hash = "sha256:9ede61b0854e267fd565e7527e2f2eb3ef8858b301319be0604177690e1a3896"},
+    {file = "yarl-1.6.3-cp38-cp38-win_amd64.whl", hash = "sha256:f0b059678fd549c66b89bed03efcabb009075bd131c248ecdf087bdb6faba24a"},
+    {file = "yarl-1.6.3-cp39-cp39-macosx_10_14_x86_64.whl", hash = "sha256:329412812ecfc94a57cd37c9d547579510a9e83c516bc069470db5f75684629e"},
+    {file = "yarl-1.6.3-cp39-cp39-manylinux1_i686.whl", hash = "sha256:c49ff66d479d38ab863c50f7bb27dee97c6627c5fe60697de15529da9c3de724"},
+    {file = "yarl-1.6.3-cp39-cp39-manylinux2014_aarch64.whl", hash = "sha256:f040bcc6725c821a4c0665f3aa96a4d0805a7aaf2caf266d256b8ed71b9f041c"},
+    {file = "yarl-1.6.3-cp39-cp39-manylinux2014_i686.whl", hash = "sha256:d5c32c82990e4ac4d8150fd7652b972216b204de4e83a122546dce571c1bdf25"},
+    {file = "yarl-1.6.3-cp39-cp39-manylinux2014_ppc64le.whl", hash = "sha256:d597767fcd2c3dc49d6eea360c458b65643d1e4dbed91361cf5e36e53c1f8c96"},
+    {file = "yarl-1.6.3-cp39-cp39-manylinux2014_s390x.whl", hash = "sha256:8aa3decd5e0e852dc68335abf5478a518b41bf2ab2f330fe44916399efedfae0"},
+    {file = "yarl-1.6.3-cp39-cp39-manylinux2014_x86_64.whl", hash = "sha256:73494d5b71099ae8cb8754f1df131c11d433b387efab7b51849e7e1e851f07a4"},
+    {file = "yarl-1.6.3-cp39-cp39-win32.whl", hash = "sha256:5b883e458058f8d6099e4420f0cc2567989032b5f34b271c0827de9f1079a424"},
+    {file = "yarl-1.6.3-cp39-cp39-win_amd64.whl", hash = "sha256:4953fb0b4fdb7e08b2f3b3be80a00d28c5c8a2056bb066169de00e6501b986b6"},
+    {file = "yarl-1.6.3.tar.gz", hash = "sha256:8a9066529240171b68893d60dca86a763eae2139dd42f42106b03cf4b426bf10"},
+]
 zipp = [
     {file = "zipp-3.1.0-py3-none-any.whl", hash = "sha256:aa36550ff0c0b7ef7fa639055d797116ee891440eac1a56f378e2d3179e0320b"},
     {file = "zipp-3.1.0.tar.gz", hash = "sha256:c599e4d75c98f6798c509911d08a22e6c021d074469042177c8c86fb92eefd96"},
diff --git a/pyproject.toml b/pyproject.toml
index 1bdf1716a..7649e53df 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,6 +23,8 @@ sphinx = { version = "^3", optional = true }
 m2r = { version = "^0", optional = true }
 sphinx_rtd_theme = { version = "^0", optional = true }
 sphinxcontrib-programoutput = { version = "^0", optional = true }
+aiohttp = "^3"
+pycryptodome = "^3"
 
 [tool.poetry.dev-dependencies]
 pytest = "^5"