Security systems, methods, storage medium for increasing security of devices utilizing a communication channel
A security system for enhancing security of a device utilizing a communication channel includes one or more processors and a storage including instructions stored thereon. When the instructions are executed by the one or more processors, the instructions cause the security system to receive, by a plurality of Internet of Thing (IoT) devices, data from a communication source through a first communication channel, replicate, by the plurality of IoT devices, the received data, randomly activate one of non-empty subsets of the plurality of IoT devices, select a majority vote input based on the replicated data from the randomly activated subset of the plurality of IoT devices; and transmit the majority vote input to a communication destination through a second communication channel, which is different from the first communication channel.
1 . A security system for enhancing security of a device utilizing a communication channel, the security system comprising:
one or more processors; and
a storage including instructions stored thereon that, when executed by the one or more processors, cause the security system to:
receive, by a plurality of Internet of Thing (IoT) devices, data from a communication source through a first communication channel;
replicate, by the plurality of IoT devices, the received data;
randomly activate one of non-empty subsets of the plurality of IoT devices;
select a majority vote input based on the replicated data from the randomly activated subset of the plurality of IoT devices; and
transmit the majority vote input to a communication destination through a second communication channel, which is different from the first communication channel.
2 . The security system according to claim 1 , wherein the data includes a sensor data or a control data.
3 . The security system according to claim 1 , wherein the first communication channel is an out-of-band private data exchange network.
4 . The security system according to claim 1 , wherein the second communication channel is a public network.
5 . The security system according to claim 1 , wherein the majority vote input is a median value of the replicated data from the randomly activated subset of the plurality of IoT devices.
6 . The security system according to claim 1 , wherein a number of the non-empty subsets of the plurality of IoT devices is:
2 n −1,
where n is a number of the plurality of IoT devices.
7 . The security system according to claim 1 , wherein a probability that an attacker intercepts one replicated data after random activation is:
2
n
-
1
2
n
-
1
,
wherein n is a number of the plurality of IoT devices.
8 . The security system according to claim 1 , wherein a false data injection attack is made by an attacker by injecting false data into one of the replicated data by the plurality of IoT devices.
9 . The security system according to claim 8 , wherein an expectation value of the false data injection attack when selecting the majority vote is:
n
+
1
2
(
2
n
-
1
)
δ
,
where n is a number of the plurality of IoT devices and δ is a magnitude of the false data injection attack.
10 . The security system according to claim 1 , wherein the communication source or the communication destination is an electric vehicle (EV), an EV charging station, an EV supply equipment, a generator, and a management controller.
11 . A security method for enhancing security of a device utilizing a communication channel, the security method comprising:
receiving, by a plurality of Internet of Thing (IoT) devices, data from a communication source through a first communication channel;
replicating, by the plurality of IoT devices, the received data;
randomly activating one of non-empty subsets of the plurality of IoT devices;
selecting a majority vote input based on the replicated data from the randomly activated subset of the plurality of IoT devices; and
transmitting the majority vote input to a communication destination through a second communication channel, which is different from the first communication channel.
12 . The security method according to claim 11 , wherein the data includes a sensor data and a control data.
13 . The security method according to claim 11 , wherein the first communication channel is an out-of-band private data exchange network.
14 . The security method according to claim 11 , wherein the second communication channel is a public network.
15 . The security method according to claim 11 , wherein the majority vote input is a median value of the replicated data from the randomly activated subset of the plurality of IoT devices.
16 . The security method according to claim 11 , wherein a number of the non-empty subsets of the plurality of IoT devices is:
2 n −1,
where n is a number of the plurality of IoT devices.
17 . The security method according to claim 11 , wherein a probability that an attacker intercepts one replicated data after random activation is:
2
n
-
1
2
n
-
1
,
wherein n is a number of the plurality of IoT devices.
18 . The security method according to claim 11 , wherein a false data injection attack is made by an attacker by injecting false data into one of the replicated data by the plurality of IoT devices.
19 . The security method according to claim 18 , wherein an expectation value of the false data injection attack when selecting the majority vote is:
n
+
1
2
(
2
n
-
1
)
δ
,
where n is a number of the plurality of IoT devices and δ is a magnitude of the false data injection attack.
20 . A non-transitory computer-readable storage including instruction that, when executed by a processor, cause the processor to perform a security method for enhancing security of a device utilizing a communication channel, the security method comprising:
receiving, by a plurality of Internet of Thing (IoT) devices, data from a communication source through a first communication channel;
replicating, by the plurality of IoT devices, the received data;
randomly activating one of non-empty subsets of the plurality of IoT devices;
selecting a majority vote input based on the replicated data from the randomly activated subset of the plurality of IoT devices; and
transmitting the majority vote input to a communication destination through a second communication channel, which is different from the first communication channel.