Add support for pure python AES implementation (#78)
This commit is contained in:
Thomas Järvstrand
Matthew Garrett
parent
7a852b2084
commit
4f03ffb963
2 changed files with 44 additions and 22 deletions
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@ -1,10 +1,15 @@
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#!/usr/bin/python
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from datetime import datetime
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try:
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from Crypto.Cipher import AES
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except ImportError, e:
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import pyaes
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import time
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import random
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import socket
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import sys
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import threading
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def gendevice(devtype, host, mac):
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@ -145,6 +150,29 @@ class device:
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self.type = "Unknown"
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self.lock = threading.Lock()
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if 'pyaes' in sys.modules:
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self.encrypt = self.encrypt_pyaes
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self.decrypt = self.decrypt_pyaes
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else:
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self.encrypt = self.encrypt_pycrypto
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self.decrypt = self.decrypt_pycrypto
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def encrypt_pyaes(self, payload):
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aes = pyaes.AESModeOfOperationCBC(self.key, iv = bytes(self.iv))
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return "".join([aes.encrypt(bytes(payload[i:i+16])) for i in range(0, len(payload), 16)])
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def decrypt_pyaes(self, payload):
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aes = pyaes.AESModeOfOperationCBC(self.key, iv = bytes(self.iv))
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return "".join([aes.decrypt(bytes(payload[i:i+16])) for i in range(0, len(payload), 16)])
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def encrypt_pycrypto(self, payload):
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aes = AES.new(bytes(self.key), AES.MODE_CBC, bytes(self.iv))
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return aes.encrypt(bytes(payload))
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def decrypt_pycrypto(self, payload):
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aes = AES.new(bytes(self.key), AES.MODE_CBC, bytes(self.iv))
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return aes.decrypt(bytes(payload))
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def auth(self):
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payload = bytearray(0x50)
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payload[0x04] = 0x31
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@ -174,10 +202,7 @@ class device:
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response = self.send_packet(0x65, payload)
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enc_payload = response[0x38:]
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aes = AES.new(bytes(self.key), AES.MODE_CBC, bytes(self.iv))
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payload = aes.decrypt(bytes(enc_payload))
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payload = self.decrypt(response[0x38:])
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if not payload:
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return False
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@ -225,8 +250,7 @@ class device:
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checksum += payload[i]
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checksum = checksum & 0xffff
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aes = AES.new(bytes(self.key), AES.MODE_CBC, bytes(self.iv))
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payload = aes.encrypt(bytes(payload))
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payload = self.encrypt(payload)
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packet[0x34] = checksum & 0xff
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packet[0x35] = checksum >> 8
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@ -301,8 +325,7 @@ class mp1(device):
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response = self.send_packet(0x6a, packet)
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err = response[0x22] | (response[0x23] << 8)
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if err == 0:
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aes = AES.new(bytes(self.key), AES.MODE_CBC, bytes(self.iv))
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payload = aes.decrypt(bytes(response[0x38:]))
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payload = self.decrypt(bytes(response[0x38:]))
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if type(payload[0x4]) == int:
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state = payload[0x0e]
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else:
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@ -350,8 +373,7 @@ class sp2(device):
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response = self.send_packet(0x6a, packet)
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err = response[0x22] | (response[0x23] << 8)
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if err == 0:
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aes = AES.new(bytes(self.key), AES.MODE_CBC, bytes(self.iv))
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payload = aes.decrypt(bytes(response[0x38:]))
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payload = self.decrypt(bytes(response[0x38:]))
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return bool(payload[0x4])
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class a1(device):
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@ -366,8 +388,7 @@ class a1(device):
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err = response[0x22] | (response[0x23] << 8)
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if err == 0:
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data = {}
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aes = AES.new(bytes(self.key), AES.MODE_CBC, bytes(self.iv))
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payload = aes.decrypt(bytes(response[0x38:]))
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payload = self.decrypt(bytes(response[0x38:]))
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if type(payload[0x4]) == int:
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data['temperature'] = (payload[0x4] * 10 + payload[0x5]) / 10.0
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data['humidity'] = (payload[0x6] * 10 + payload[0x7]) / 10.0
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@ -417,8 +438,7 @@ class a1(device):
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err = response[0x22] | (response[0x23] << 8)
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if err == 0:
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data = {}
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aes = AES.new(bytes(self.key), AES.MODE_CBC, bytes(self.iv))
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payload = aes.decrypt(bytes(response[0x38:]))
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payload = self.decrypt(bytes(response[0x38:]))
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if type(payload[0x4]) == int:
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data['temperature'] = (payload[0x4] * 10 + payload[0x5]) / 10.0
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data['humidity'] = (payload[0x6] * 10 + payload[0x7]) / 10.0
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@ -445,8 +465,7 @@ class rm(device):
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response = self.send_packet(0x6a, packet)
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err = response[0x22] | (response[0x23] << 8)
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if err == 0:
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aes = AES.new(bytes(self.key), AES.MODE_CBC, bytes(self.iv))
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payload = aes.decrypt(bytes(response[0x38:]))
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payload = self.decrypt(bytes(response[0x38:]))
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return payload[0x04:]
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def send_data(self, data):
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@ -465,8 +484,7 @@ class rm(device):
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response = self.send_packet(0x6a, packet)
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err = response[0x22] | (response[0x23] << 8)
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if err == 0:
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aes = AES.new(bytes(self.key), AES.MODE_CBC, bytes(self.iv))
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payload = aes.decrypt(bytes(response[0x38:]))
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payload = self.decrypt(bytes(response[0x38:]))
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if type(payload[0x4]) == int:
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temp = (payload[0x4] * 10 + payload[0x5]) / 10.0
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else:
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10
setup.py
10
setup.py
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@ -6,19 +6,23 @@ from setuptools import setup, find_packages
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import sys
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import warnings
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dynamic_requires = []
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try:
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import pyaes
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dynamic_requires = ["pyaes==1.6.0"]
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except ImportError, e:
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dynamic_requires = ['pycrypto==2.6.1']
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version = 0.3
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setup(
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name='broadlink',
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version=0.3,
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version=0.4,
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author='Matthew Garrett',
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author_email='mjg59@srcf.ucam.org',
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url='http://github.com/mjg59/python-broadlink',
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packages=find_packages(),
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scripts=[],
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install_requires=['pycrypto==2.6.1'],
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install_requires=dynamic_requires,
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description='Python API for controlling Broadlink IR controllers',
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classifiers=[
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'Development Status :: 4 - Beta',
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