Blockchain

Ethereum Networks

Introducing Infura: Connecting DApps with Ethereum Network without setting up Ethereum Nodes

  If you’ve been working on Decentralized applications based on Ethereum, you might have come across setting up the Local Ethereum Node or your own private Ethereum node to test your application. In my case, Setting up Ethereum nodes and connecting dApps with it has been a problem for me for the following reasons: If I use any of the Ethereum clients (geth or parity) Continue Reading

Code Combat II : The Code Battle For The Vanguard Continues…

“If you can dream it, you can do it. ”  -Walt Disney For some coding is a job. For some, it is an exercise. But for us folks here at Knoldus, it’s a Passion. So in order to bring a twist in the daily work schedule, Knoldus held an overnight Hackathon competition within the organization on 18th May 2018 which presented an opportunity for every Knolder(employees Continue Reading

Blockchain Nuggets

Blockchain Nuggets – Distributed Systems

The first law of distribution is “Don’t Distribute“. If everything can be done on a single machine then nothing beats that. But, lets cut to reality. Today’s computing and information systems are inherently distributed. Starting from large data centers to cloud storage to your mobile phone, everything is a part of the distributed infrastructure. Distribution, just like distributed development teams is here to stay because Continue Reading

Hyperledger Fabric Certificate Authority(CA) Client

In the previous blog, we discussed about Fabric Certificate Authority(CA) Architecture, Initializing Fabric Certificate Authority Server and Configuring the database. Now, we will discuss how to use fabric-ca-client command. We can interact with Fabric-CA Server via Fabric-CA Client and there can be multiple Fabric-CA Intermediate Servers. Each Intermediate Fabric-CA server can be configured Fabric-CA server cluster. So, to start Fabric-CA-Client we need to start the Fabric-CA-Server first. Continue Reading

Hyperledger Fabric Certificate Authority(CA)

Every operation in Hyperledger must be signed cryptographically with certificates. You can generate certificates yourself using OpenSSL or by using third party. Before moving further into details of CA lets first explore Hyperledger Fabric a little. 😉 Hyperledger Fabric Hyperledger Fabric founded in 2015 which is an umbrella for open source projects some of which are Blockchain Distributed Ledger Frameworks such as Fabric, Sawtooth and Continue Reading

Getting started with Ethereum

What is Ethereum? Ethereum is an open-source blockchain platform that lets anyone build and use decentralized applications that run on blockchain technology. It is an open-source project created by Vitalik Buterin. How is it different from Bitcoin? Bitcoin is not capable of performing calculations that didn’t fit into his limited scripting language. Satoshi Nakamoto, the creator of bitcoin, did not design it to send anything Continue Reading

Getting an insight of Blockchain

Hi all, In today’s blog, I will be getting you acquainted with the Blockchain, its definition, inception and everything you need to know as a novice developer or user. A many of us have lately been getting very familiar with the term Bitcoin and have started to visualise it correctly as a digital currency. So getting into a bit more detail, the technology behind it Continue Reading

Microsoft announced Coco Framework for blockchain networks

On August 10, 2017, Microsoft announced their enterprise-ready blockchain network, Coco Framework. Blockchain technology is now not an unknown technology anymore, with each day passing the number of enterprises supporting and investing in blockchain is increasing.  There are lots of short coming in existing software like latency, performance, governance, etc. Microsoft, one of the tech giants, investing a lot in blockchain technology.  They are trying Continue Reading

Consensus Algorithms in Blockchain

When we talk about the blockchain, the first thing that came up in our mind is the security and the security because of the blockchain consensus algorithm. Those who know about the blockchain know that we keep the ledger transactions synchronized across the network to ensure that ledgers only update when the appropriate participants approve transactions and that when ledgers do update, they update with Continue Reading

Transforming to a New World with Blockchain Technology

The Blockchain technology is booming beyond belief. But apart from the definition or relating it to BITCOINS what else do we know about The Blockchain? Reading articles regarding this, all I could summarize about Blockchain is that it is a- Distributed and immutable (write once and read only) Database/System. A public ledger of all distributed transactions. Key features include Security, Integrity, Accessibility. A well-known implementation Continue Reading

Starting with Blockchain Chaincode using Golang

Chaincode, or a smart contract is a fragment of code written in supported languages like Java or Go that is deployed onto a network of HyperLedger Fabric peer nodes. In this blog, we will learn how to develop Chaincode using Golang for a blockchain network based on Hyperledger Fabric v0.6. Chaincodes run network transactions which are validated and then appended to the shared ledger. In simple Continue Reading

Quorum : Ethereum-based distributed ledger protocol

In Simple words Quorum is an Ethereum-based distributed ledger protocol that supports transaction and contract privacy. The primary features of Quorum. Transaction and contract privacy Voting-based consensus mechanism Network/Peer permissions management Higher performance Apart from these feature Quorum includes one of the powerful feature that is support of Private and Public Transactions. Private Transaction :- are those Transactions whose payload is only visible to the Continue Reading

What would kill Uber, Airbnb, TripAdvisor in one go?

What do Uber, Airbnb, TripAdvisor, PayPal etc have in common. Right, they are super successful and highly valued and …. ? Uber and Airbnb fall in the category of Shared Economy. Paypal has changed the way financial transactions are carried out and TripAdvisor makes the rating and booking of hotels and trips easier. So, what is the common theme? The common theme is that all Continue Reading

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