In this section we will see take a brief look at the Interplanetary FileSystem (IPFS) component of asvin architecture and explain it briefly.
asvin.io uses Interplanetary File System protocol to store firmware and patches. IPFS is a content-addressable peer to peer method for storing and sharing hypermedia in a distributed file system while eliminating duplicate files and redundancy. It uses a network infrastructure that enables asvin.io to store unalterable firmware data. When a firmware file is stored on the network a hash is generated based on content of the firmware and stored on blockchain network. Later on, the same hash is used by edge devices to pull the firmware from data storage. This forms a generalized Merkle directed acyclic graph(DAG). Each node of Merkle DAG is connected with a secured Hash. When a node is added in the DAG, its hash is computed based on hash of its local content and hashes of its children’s name instead of their content. Once it is created, it is impossible to alter a node in the network. IPFS has no single point of failure. asvin.io provides a distributed content delivery system which provides an extra layer of security and prevents DDoS attacks. asvin.io’s SDK, which is run on edge devices, enables the functionality to interact with data storage servers. Once an edge device gets information from the version controller regarding the newly available firmware, it uses this information to download appropriate firmware from the distributed CDN.