The Internet of things has empowered the physical objects to communicate and create seamlessly. It has unanimated the physical objects to the extent to perform without human intervention.
Different IoT applications support automated tasks and enhance the level of mobility and comfort to the users. Now smart devices communicate with each other, and they do not need any human intervention.
Are we secure in the era of the Internet of things? We could be secure only in cases if we maintained the level of recovery from security attacks, privacy, authentication, availability, and security. IoT security is crucial for smart devices, and a high degree of trust in IoT applications fulfills the level of required security.
Why is there a need for a high level of security in smart devices?
IoT is an interconnected network of smart devices. If accidentally, one gets hacked or compromised, then there are chances of exploited whole systems. The digital devices in an environment of IoT communicate through Ip addresses. As all the devices connected through the Internet, so there are chances of malicious attacks.
Through the Internet, a hacker can enter into various computer systems and networks. So, he uses many ways, such as adware, Trojan, spam, key loggers, phishing, and rogue security software, to exploit the vulnerabilities of the Internet.
Therefore, IoT security is crucial for smart devices, and here we would enlighten the protocols by which you can enhance the IoT security.
To ensure secure communication between different IoT devices and computer systems, there is no other better option than cryptography. Nowadays, blockchain is in the air for security, the IoT environment.
Different cryptographic algorithms secure the IoT devices differently, such as AES is a symmetric encryption standard that brings confidentiality. RSA is an asymmetric encryption standard for security the transmission medium (key) and to build the digital signatures.
Moreover, hashing ensures the integrity in which there are no chances of losing or altered data through hackers.
IoT security protocols
As IoT security is crucial for smart devices, so several protocols build a secure environment for digital devices.
Quick UDP Internet Connections (QUIC)
QUIC not only ensures security but also promotes the composite connections between two endpoints. The secure communication with reduced no of connections and transport latency comes with QUIC. It also follows the TSL and SSL mechanism with efficiency to calculate bandwidth for congestion control.
Message Queue Telemetry Transport (MQTT)
As we are considering the IoT security protocols, MQTT is a must to add to the list. It ensures secure M2M communication with achieved nonrepudiation. Encryption follows the SSL mechanism with a three-phase process such as publisher, broker, and subscriber.
It means the information reaches a person only intended to receive that information. It is how an intelligent security framework for IoT devices works. Firstly performing encryption and then building trust for secure and reliable communication.
Constrained Application Protocol (CoAP)
It is one of the best protocols designed for better working of low power-constrained devices securely. COAP, a simplified HTTP protocol is running on UDP to save bandwidth. There are several extensions, such as encryption with TSL and Ip sec layer, which enhances CoAP capabilities and IoT security.
The IoT devices get secure when there is REST with JSON over HTTP. JSON web token secures the IoT devices and services through verified information all over the web. The verified information acts as a building block in secure communications and deploying different security mechanisms on the go.
The protocols mentioned above and NFC, AMQP, and LoRaWAN are utilizing the AES secure payload to ensure IoT security. Moreover, the RFIDs, z-waves, and sigfox propose enhanced protection in the IoT world. Choose any of these protocols and standards that fit your desired needs.
Before deploying any secure environment, choose a protocol by considering the bandwidth and no of nodes of the protocol. Where this is easy, more are the chances of threats, so use securely and always check for verified sources of information.