Established security mechanisms such as Arm’s TrustZone can be used to secure IoT devices at the network edge with minimal hardware complexity and cost.
IoT devices without adequate security introduce several network vulnerabilities. For protection, implement both hardware and software security.
A contactless smartcard implements security algorithms used in blockchain transactions without ever exposing the private keys that are so critical to system security.
The security of private keys lies at the core of blockchain technology's ability to make data widely accessible without compromising its integrity.