def new_connection():
print request.get_json()
device_name = request.json.get('device_name')
if device_name is None:
abort(400) #missing arguments
cert = Certificate.query.filter_by(device_name = device_name)
if cert is None:
abort(400) # not registered device
#Return device_id and server_pub_key encrypted by Device PublicKey
#use PublicKey to encrypt ServerPublicKey to reponse
e = cert.export_key()
server_public_key = app.config['PUBLIC_KEY'].exportKey()
randomS = '{0:b}'.format(Random.getrandbits(128))
Session['RandomS'] = randomS
m = jsonify({'device_id': str(cert.get_id()),'public-key': server_public_key,'randomS': randomS})
c = e.encrypt(m)
#calculate hash
h = SHA256.new()
h.update(m)
h = h.hexdigest()
return jsonify({'c': c, 'h': h})
