Hyperledger Iroha

Introduction 

Hyper ledger Iroha, a simplified Distributed Ledger Technology (DLT) is a Japanese project contributed by Soramitsu in March 2018. This project is highly inspired by the famous principle i.e. Kaizen which aims to eliminate excessiveness (muri). It is effectively tailored for asset management, storage of transactions, and integration of analytical tools. The concept can be put to implementation for making trusted, secure and fast applications that enable the integration of permission-based blockchain with the Crash fault-tolerant consensus. Iroha is a free and open-source platform providing a high level of privacy & speed to work with a variety of mobile and desktop libraries including Linux and Mac OS.

The Iroha framework does not allow smart contracts and complex business logic operations yet it provides the best tools for several demanded permission blockchain especially related to the financial sector. As the blockchain-based banking app does not require many inputs to mint, burn, or transfer digital assets including wallets.  Thus, the Iroha ensures the quickest and affordable development platform. 

 

What’s inside Iroha?

The Hyper ledger Iroha consists of several essential elements that ensure better communication between nodes. Therefore, a few of the essential elements that are as follows: 

  • Torii: To interact with Iroha one can use gRPC endpoints which serves as a transport in the entry stage for the clients. These are described in commands and queries sections or can be accessed through client libraries.
  • MST Processor: Here, MST stands for Multisignature Transactions Processor which is an integral gRPC feature that transmits messages between peers through Gossip Protocol. It aims to send multi-signature transactions to quorum despite no enough signatures.
  • Peer Communication Service: It is also an integral component of Iroha that ensures transaction transmission from Torii to Ordering Gate through MST processor. The major aim is to avoid the complexity of interaction with consensus implementation.
  • Ordering Gate: It facilitates the transactional relay from Peer Communication Service to Ordering Gate. The ordering gate receives proposals from the ordering service and thereupon sends them to the stimulator for proper validation based on the consensus round. 
  • Ordering service: The gRPC server receives the messages from other peers and merges them with several other transactions that have been transmitted stateless into a proposal. Every node has its own ordering services wherein the proposal creation can be influenced by any of the factors such as the expiration of time limit for collection, receipt of the maximum amount of transactions for a single proposal, etc. It performs the initial validation of the proposals too.
  • Verified Proposal Creator: It facilitates the stateful validation of the transactions that are been received from the ordering service. Depending on the size of approved transactions a verified proposal gets created and then passed to Block Creator. All the invalid transactions are dropped in this stage and therefore, not taken ahead. 
  • Block Creator: This is the system component that forms a block deriving from the set of transactions that were passed stateless and stateful for consequent propagation. In integration with Verified Proposal Creator, Block Creator creates a component called a simulator. 
  • Block Consensus (YAC): Consensus being the heart of the blockchain preserves a consistent state within the network whereas Iroha uses its own algorithm called Yet Another consensus (YAC). YAC is highly scalable and performance & crash fault-tolerant. In the case of missing blocks, these YAC can be downloaded from another peer by using Synchronizer. Additionally, the committed blocks are stored in Ametsuchi block storage

 

Where can Iroha be used?

Since, it is a general-purpose permissioned blockchain project that manages digital assets, identity, and serialized data. Thus, it can prove out to be useful for applications in interbank settlement, central bank digital currencies, payment systems, validation of national IDs and logistics, etc. Additionally, to strengthen the blockchain and put it into execution it is essential to interface with the Iroha peers. As it provides several client libraries for developers which further facilitates building blocks for signatures, commands, send messages to Iroha peers and analyze the status.

 

Why Iroha?

  • It allows the simple deployment and maintenance of data.
  • It facilitates a variety of libraries for developers. 
  • It provides role-based access control. 
  • The modular designs are driven by commands which are based on the query separation principle. 
  • The platform provides suitability for assets and identity management. 
  • It provides the taxonomy of accounts based on domains in the system.
  • This is the system of rights and verifications for users to execute transactions & queries in the system.
  • The project is highly reliable as it ensures fault tolerance and recoverability. 
  • It provides performance efficiency by appropriate time and resource utilization.

 

How is Iroha different from Bitcoin or Ethereum?

Bitcoin & Ethereum are permission-less ledgers where anybody can get access to the data. It also holds native cryptocurrencies which facilitate interaction with the systems. In Iroha, there is existence of no cryptocurrency yet to meet the needs of the enterprise, the project allows system interaction. Additionally, queries are also permitted to allow better access and control to the data.

In comparison to Ethereum, Hyperledger Iroha neglects the need for writing complex logic and algorithms enabling the developers to complete tasks comparatively simpler, quicker, and with lesser risk. Regardless of Ethereum, Iroha performs common functions like creating & transferring digital assets by considering predefined commands in the system.    

 

How is Iroha different from other Hyperledger projects?

The Hyperledger Iroha has a crash fault-tolerant consensus algorithm known as YAC which allows high performance and finality of transactions with latency. The built-in commands in Iroha provide better benefits in comparison to other projects as it is simpler to create and maintain digital assets, register accounts, and transfer assets between several accounts. It also lessens the probability of attack by improving overall system security with fewer chances to fail. Thus, it is the only ledger that has a vibrant permission system for command, queries and joining of the network.