CONTEXT: Smart City managers need to drive digitalization based on sensors and other data sources that are out in the public domain. As a society, we want these future smart city policies to be based on reliable and trusted sources - and our own data privacy to be respected. That's why devices need a tamper-proof digital identity so that the city council can work with their ‘Digital Twins' efficiently and settle automatically. And, more importantly, to set up secure and acceptable governance structures.
Unique incorruptible digital identity of connected devices + secure Digital Twins.
Scalability and interoperability of various smart city systems.
Machine integrity enables autonomous interactions.
CYBERSECURITY OF CONNECTED OBJECTS
Connected objects are not truly autonomous, as human employees are required to control network and devices
Digital Twins - if they exist at all - are connected using a centrally controlled network
Our solution creates trusted IoT devices by embedding our blockchain crypto chips into sensors or objects. The crypto algorithm creates a key pair with the public key registered on the blockchain and the private key stored ‘off the bus’, on the device itself.
Network failure – centralised servers represent a single point of failure
IoT solution - highly secure blockchain-backed crypto hardware that gets embedded into a connected goldmine. The crypto algorithms are activated to create a key pair with public key registered on the blockchain and with the private key stored ‘off the bus’, i.e. on the device itself.
Unique identity – the device can use its private key to interact with blockchains automatically
Machine integrity – attempts to extract the private key will destroy the chip and prevent data fraud.
INTEROPERABILITY OF INTER- DEPENDENT SMART CITY SYSTEMS
Each smart city solution communicates with the central server, independently of other systems
Central servers have limited capacity to collect and process data fed in by the smart devices
Data collected in silos significantly restricts ability of smart city management to base decisions using multi-sourced data repositories
Individual system architectures limit interoperability
Devices register on the blockchain using their unique digital identity and and can act as active nodes, supplying decentralised networks.
Blockchain backend allows for scalability and interoperability of smart city systems by providing a single data repository where any system and any number of new objects can be added without longer backend integration processes.
During the manufacturing process, the secure crypto hardware gets physically connected to any device, in this example a new street light pole, via the standard I2C hardware interface. Immediately after, it gets provisioned* and attested** on the blockchain with metadata defined by smart city management.
When a light pole needs to be repaired, it can automatically publish a job offer containing all the specifications to be done and the price to be paid.
Any technician registered to a Smart City marketplace can then apply for this job.
Once the light pole is repaired and is validated on the blockchain, the electrical technician gets paid directly by the light pole, thanks to its transactional capabilities.
*Process by which the key pairs are created. **Process by which the public key of the crypto tag is registered on the blockchain of choice. The attestation also includes an update according to any smart contract that might have been set up between the parties involved in order to guarantee certain processes for their IoT case.