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17 Publications found

Deploying Ethereum Smartcontracts on HyperledgerFabric

Found: 7/2/2019
Finder: Blockchaindex robot
Who This Article is for? This article is for those Who are Currently On Blockchain. knowledge on Ethereum and Hyperledger Eco-Systems is necessary to understand These Concepts. What We Are going to do? The point is very clear that we are going to deploy Ethereum Smartcontracts on Hyperledger fabric Network using Fabric-Evm and doing Cross-Platform check for Ethereum Smartcontracts.
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Introducing Hyperledger Transact

Found: 6/29/2019
Finder: Blockchaindex robot
Today we are excited to announce our newest project, Hyperledger Transact. Transact represents the continued evolution at Hyperledger towards greater componentization to allow rapid responsible adoption of new blockchain technologies. Transact provides a platform-agnostic library for executing transactions with smart contracts. It allows us to more rapidly integrate a variety of smart contract technologies such as WebAssembly across the Hyperledger family of projects. Transact is informed from experiences and design in multiple Hyperledger frameworks including Hyperledger Sawtooth and Hyperledger Fabric.
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Setup a Hyperledger Fabric Host and Create a Machine Image

Found: 6/27/2019
Finder: Blockchaindex robot
During the training and testing on Hyperledger Fabric networks and chaincodes, I always need a “standard” host running Hyperledger Fabric. By “standard” it is nothing more than a Ubuntu host with prerequisite components (link) and Hyperledger Fabric images, tools and samples (link). They are well documented in Hyperledger Fabric documentation. While various cloud providers have their own templates to build such a host, or a more friendly way to launch the whole fabric network, I always encourage those wishing to learn Hyperledger Fabric “do the hard way”, that is, they at least should go through all the step-by-step process once. It helps you understand more about Hyperledger Fabric.
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Identity in Hyperledger Fabric (Part 2)

Found: 6/20/2019
Finder: Blockchaindex robot
We first take a look on the cryptogen tool, and what are generated with a proper configuration file. Instead of generating the required amount of user certificates with cryptogen, a better way is to use Fabric-CA. We take a bit deep-dive into how the Fabric-CA is configured, and then issue a user certificate through fabric SDK. Finally, we again use Attribute-based Access Control (ABAC) to limit only those entity with proper attribute can invoke some part of chaincode.
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THE RISE OF HYPERLEDGER BLOCKCHAIN ARMY

Found: 6/13/2019
Finder: Blockchaindex robot
Precisely speaking there is nothing like Hyperledger in general as single project, technology, blockchain – whatever. Hyperledger term can be described as the group of open-source projects which belong to the Linux Foundation Projects. These projects are blockchain frameworks & complementary tools dedicated to these frameworks. I’ve started quite aggressively talking about the army (we will come back to it later), however In the Hyperledger website we can find the term Greenhouse to describe this group of projects. The picture below presents what’s inside the greenhouse.
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Convector with NestJS

Found: 6/13/2019
Finder: Blockchaindex robot
These days I’ve been playing around with Convector, which is a javascript framework to develop smart contracts and blockchains. Honestly Kudos to the the WoldSibu for bringing such a great tool to the javascript world.
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Identity in Hyperledger Fabric

Found: 6/12/2019
Finder: Blockchaindex robot
Citation: "Identity is an important feature of permissioned blockchain platform. In Hyperledger Fabric, each component needs to be identified before accessing the fabric network. The identity is represented by an X.509 digital certificate. When interacting with a fabric network, the actor specifies and presents the digital certificate, and the fabric network accepts or denies based on the policy."
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Add a New Organization on Existing Hyperledger Fabric Network

Found: 6/10/2019
Finder: Blockchaindex robot
Citation: "In training classes, I always hear people say that Hyperledger Fabric is really complicated. And among everything, it is always the infrastructure part, that is, bringing up the fabric network with all the components, say the Peers, Orderers, Certificate Authority, with proper setup on the organizations and channels. After that, one can run chaincode on top of the network. That part is more “developer-friendly” compared to the underlying infrastructure."
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Using 3rd Party Root CAs in Hyperledger Fabric

Found: 6/8/2019
Finder: Blockchaindex robot
Citation: "Hyperledger Fabric (HF) provides flexibility towards end users to use their own certificate authorities. However, most, if not all deployment samples provided publicly uses Fabric CA?—?which is understandable: Fabric CA is easy to use and can be readily deployed alongside other Fabric components. Those samples also tend to use only one CA i.e. the Root CA for each organization. This is not acceptable in production environments. As the Root CA acts as the trust anchor, it should be heavily secured and kept offline. Signing of end…"
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Deploy a Hyperledger Fabric project multi-channel, multi-organization, and multi-cloud on Kubernetes in under 10 minutes

Found: 6/7/2019
Finder: Blockchaindex robot
Citation: "Have you tried to deploy a Hyperledger Fabric project to the cloud before? I did, it is not an easy task. This blog post assumes you are already familiar with Hyperledger Fabric’s terminology. If you want to go for the DIY path and set up everything by your own, you'll end up spending weeks, if not months, trying to figure out how to do it properly, taking care of all the small aspects of what it means to deploy a Fabric network. And even when you finally come out with a good network, you have to start thinking about how are new members going to be added and managed to this consortium. Multi-cloud, scalability, monitoring, recovery, etc."
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