Data integrity and auditability in secure IoT communications
Ravi Prakash Singh, Mohit Sharma, Aprajita Seth · 2026
The Internet of Things (IoT) describes a system where physical devices and sensors, along with other technologies, are connected and share information using the internet which is continually changing. Smart devices consist of appliances we use in our homes and sophisticated ones in industry and more of these devices have increased the danger from security and privacy attacks. It is clear that secure communication is needed to make sure all data moving through IoT devices remains private, real and secure from changes. Ensuring that communication is reliable and that devices and messages are valid in constrained conditions calls for the use of TLS/SSL, DTLS and MQTT-S. It is very necessary that data used in IoT is accurate and able to be verified. Data is kept correct when you ensure its integrity and by using auditing, you can find and review changes in secure logs. If there is damage to data in an IoT system, it may be dangerous mainly in healthcare, smart cities and industrial automation. Also, auditability ensures systems stay in line with regulations and discover any problems which helps people trust the IoT. It is explained in this part that the communication between IoT devices is vulnerable and that reliable yet simple ways to test for such vulnerabilities are not currently available. Putting in regular security measures is difficult because IoT gadgets usually lack the needed power. Since auditing systems in real time can be challenging for many, verifying that the process is transparent and fair is not as easy as it should be. The chapter reviews different techniques applied today for data integrity and auditing in IoT communication by relying on cryptography, blockchains and secure logging. They have to be simple and practical, working with many IoT devices and situations. People reading the book are introduced to major topics, common risks, current security approaches, how they are applied and what to look forward to as the field moves ahead. It is written in a way that one section relies on its past sections to give a comprehensive explanation of IoT security as well as following up on traffic.