What are the security protocols for Internet of Things (IoT)?.

The security protocols for the Internet of Things (IoT) include various measures designed to protect connected devices and networks. Key protocols include:

1. Transport Layer Security (TLS): Ensures secure communication over a computer network by encrypting data.
2. Internet Protocol Security (IPsec): Used to secure Internet Protocol (IP) communications by authenticating and encrypting each IP packet.
3. Secure Hypertext Transfer Protocol (HTTPS): An extension of HTTP for secure communication over a computer network.
4. Message Queuing Telemetry Transport (MQTT): Lightweight messaging protocol ideal for IoT, often secured with TLS.
5. Advanced Message Queuing Protocol (AMQP): A protocol for message-oriented middleware that can be secured with SSL/TLS.
6. Zigbee: A specification for a suite of high-level communication protocols using low-power digital radios, typically secured with AES-128 encryption.
7. Bluetooth Low Energy (BLE): Often used for personal area networks, featuring security modes for encrypting data.

Key Facts

• TLS has become the standard for secure web communications since 2015.
• IPsec is often used in Virtual Private Networks (VPNs) and was first published in 1995.
• MQTT is widely adopted in IoT applications, emphasizing low-bandwidth and power-saving.
• Zigbee devices are used in over 100 million products as of 2022.

Examples or Use Cases

• Smart home devices like thermostats using MQTT for secure data transmission.
• Wearable health monitors employing BLE to communicate securely with mobile apps.