DLedger: An IoT-Friendly Private Distributed Ledger System Based on DAG
This addresses the need for scalable and secure ledger systems in IoT environments, though it appears incremental by adapting existing DAG and consensus concepts to IoT-specific constraints.
The authors tackled the challenge of efficiently storing and securing IoT customer records by proposing DLedger, a lightweight distributed ledger system based on a DAG structure and Proof-of-Authentication, which improves resilience to network issues and reduces computational demands compared to traditional methods.
With the ever growing Internet of Things (IoT) market, ledger systems are facing new challenges to efficiently store and secure enormous customer records collected by the IoT devices. The authenticity, availability, and integrity of these records are critically important for both business providers and customers. In this paper, we describe DLedger, a lightweight and resilient distributed ledger system. Instead of a single chain of blocks, DLedger builds the ledger over a directed acyclic graph (DAG), so that its operations can tolerate network partition and intermittent connectivity. Instead of compute-intensive Proof-of-Work (PoW), DLedger utilizes Proof-of-Authentication (PoA), whose light-weight operations are IoT-friendly, to achieve consensus. Furthermore, DLedger is built upon a data-centric network called Named Data Networking (NDN), which facilitates the peer-to-peer data dissemination in heterogeneous IoT networks.