Page:Approaches on Internet of Things Solutions.pdf/3





The Internet of Things has many applicability areas and fields, such as the healthcare sector, the retail sector, transportation services, educational services, industry and so on.

Due to the large applicability of Internet of Things, experts agree that the opportunities presented by the Internet of Things are endless, as it becomes easier and easier to bring physical objects online. A practical example is represented by different smart devices connected on a social network for machines that will help homes to save energy .

Figure 3 presents the simplified schema of IoT home saving energy example.



As we can see from Figure 3, the online network of physical objects is realized by using RFID tags and some other types of sensors. By implanting these tags inside a physical object, the object gives the power to be monitored and controlled remotely through the Internet, with the help of a smartphone. This eliminates the need for human people to constantly enter and monitor data. Instead, objects can work directly with each other and can collaborate without the need for a person to link them together.

In a retail or supply chain management integrated solutions, RFID – vicinity/proximity tags or cards will be attached to the products and things, in order to store data and metadata about the products. The sensors will read or modify the data stored in RFID labels attached to the things. In order to provide authentication and data integrity, the solution will have an authentication procedure that requires minimum of processing and power consumption, but in the same time it will be strong enough to avoid security pitfalls.

The minimum authentication model will require a mechanism similar with CRYPTO1 from Mifare 1K/4K proximity cards and a higher secure model would be inspired from Sony FeliCa cards and VISA/Mastercard DDA (dynamic authentication) procedure from banking cards (MULTOS or Java Card).

Mifare DESFire tags/cards have only contactless interface for communications and they are fully compliant to the ISO/IEC14443A (1-4). They have 7 bytes UID (“Double Size UID”) and from point of view of CPU & OS, there are the following features: