Hyperledger Foundation Hyperledger Indy, 23 Jun 2021

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From YouTube: Project Demo: Indy - Renata Toktar, Evernym

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Project Demo: Indy - Renata Toktar, Evernym

To learn more about Hyperledger, the open source community focused on developing a suite of stable frameworks, tools and libraries for enterprise-grade blockchain deployments. Which serves as a neutral home for various distributed ledger frameworks including Hyperledger Fabric, Sawtooth, Indy, as well as tools like Hyperledger Caliper and libraries like Hyperledger Ursa click here: https://www.hyperledger.org/

Session Details & Slides (if available)- https://sched.co/jTYn
Access All Sessions: https://hgf2021.sched.com/

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Hyperledger – Open Source Blockchain Technologies

Hyperledger is an open source community focused on developing a suite of stable frameworks, tools and libraries for enterprise-grade blockchain deployments.
It serves as a neutral home for various distributed ledger frameworks including Hyperledger Besu, Fabric, Sawtooth, Indy, as well as tools like Hyperledger Avalon, Cactus and libraries like Hyperledger Aries, Ursa. Learn more about Hyperledger projects: https://www.hyperledger.org/use

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uh Thanks for joining today, my name is renata. I am one of the key maintainers of hyperledger indie for the fourth year. Now, I'm glad to work on indie, and today I will tell you why lindy is a digital identity project that represents a whole ecosystem of products, ranging from a distributed blockchain ledger to a client libraries for issuing verifiable credentials.

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The main idea of this system is a public permission, blockchain network that allows you to identify people without sharing too much personal data.

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The system allows credentials to be issued to an identity holder, and then the holder can provide a proof of those credentials to a verifier. The verifier can then trust the holder.

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So I see that you can hear me it's wonderful if I can continue so this. This slide explains uh some things that uh distinguish indy from other distributed ledgers. Custom privacy is in this top priority, uh it's possible because the ledger doesn't store private user data.

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Instead, it is stored by the holder to be consensus in the nodes. I use the rbft protocol, which allows quick detection of permissions. Sorry performance degradation at the primary node. The primary node can then be changed. Keeping the system efficient each request for getting a transaction contains a state proof which significantly speeds up rate operations, but allowing us to trust as a response from only one node.

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In addition to the identity transactions most of the network configuration operations are also saved in the ledger.

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Those we can change some parameters of the network through consensus of all nodes and the history of these changes is public and easily tricked we developed the system using test, drive and development, so the code is well covered with tests more than 5000 units and integration tests. More than ten thousand parameterized tests and system tests which are equivalent to testing a real distributed pool, so the following slide shows how credential credentials contain how credentials work holders own their permission, personal data, and they can present to the verifier there.

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Thanks to in this use of zero knowledge proofs, only a part of the personal data can be provided for verification.

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At the same time, verifier will not be able to use the information to impersonate the holder. The intellectual can communicate with agents that speak the areas. Protocol application which are compatible with this protocol can connect and exchange credentials with each other agents, connect to the ledger to verify keys. But it's not common to write to the ledger. Those agent communication is only limited by the speed of the network's rate operations, which happens really quickly.

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Thanks to the use of state proofs, the network is a set of nodes that contains the server side of windy in the node is replace responsible.

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This part in the node is responsible for the business logic. I like the definition of identity transactions.

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Includes the consensus protocol and local data storage that ensure a safe reboot of the notes, even in emergency situation,.

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Let's take a closer look at their products that provides the work of this business. Logic also is responsible for cryptography notes and client. Libraries use it to work with bl signatures, elliptic curve, encryption and other operations.

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Plenum and nodes are services that run on the site of the validators.

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There are two products currently on the client side in the sdk, which includes a rust library for ledger communication uh interface interfaces, in fact, for adding a payment system and wrappers in different languages for using the library on the any platform.

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Rs provides an alternative approach with the individual, verifiable data registry to connect to one or more note ledger, pools areas, escrow provides secure, storage and cryptography support and sharing trust. Libraries v6 provides a high level credential exchange protocol and frameworks for simplifying the creation of agent application.

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There are a variety of agents built on the sdk or the ars libraries, which allows the allow end users to have a convenient and understandable way to work with the whole infrastructure.

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So, let's uh take a look at a set of key features.

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These key features make this project unique. From my point of view. Their authoral transaction dynamically determines their permission for recording transactions and other activities rules can require multi-signatures.

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Our rules allow changing the network configuration without rebooting the nodes and all changes are tracked. Of course. In addition, plugins can be added to in the nodes expanding the standard functionality.

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The audit ledger keeps track of records of each transaction in each sub. Ledger this ensure consistency which solved a key issue in distrib in distributed networks.

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The transaction house agreement uh is a user agreements required to write to the ledger. This allows customer governments rules for meeting legal requirements. Freshness is an internal ledger mechanism that ensure a network, a rights.

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Ensure a network with a few right operations remains consistent and available.

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Flexible network monitoring allows users with appropriate role to receive full information about the hardware states and the internal state of the india services running on the notes.

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In addition, in addition, in recent years, we improved the mechanisms for recovering not after lagging changing a primary malicious nodes and communication between nodes. On some questions, we conducted the author of the rbft protocol to work out a more efficient and more effective solutions and, in my opinion, we managed to move forward the science of distributed consensus.

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So in this presentation I have outlined only the main main advantages of indy. In fact, this is an amazing world with a diverse community and I will be happy to discuss it with everyone. After the presentation we have community calls, there are regularly held to synchronize our efforts and develop a single direction of movement.

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We will be glad to have a question in the hyperledger rocket charts channel used by the project.

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So thanks for your attention, I can share my email for your questions and I can read your questions in these chats, we'll be glad to answer for them.

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Do you have any.

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No really guys.

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Oh, uh we have a question from michael michael sorry: doesn't support bbs plus signature? uh No right now we don't support bbs, plugins signature and in fact, one of the reasons that just maybe one month ago we had a final uh specs about bbs plus.

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So this uh india doesn't support bbs plus signatures, but we think in this direction. Thank you for your question.

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I hope you will have another questions and I think I can tell something about our next plans in indian notes, because we have a few minutes more now. We are working on um new releases uh because uh we create a new interesting features and uh we changed our release process a bit and want to improve and test it. We have a new question: how can we add a new validators node to existing network?

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uh Now we had 25 valedictorians, validated validator notes and it's some kind of sovereign government's idea that we have a few validators and if we want to add a new one, we need to send a node transaction to adding this node.

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So but firstly, to have these permissions to send this transaction. You need to contact with sovereign foundation, and after this I don't see any problem, why you can't join this validators pool.

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Thanks for your question, because I think it's interesting question in all pbft protocols, because the account of notes limited.

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So do have more.

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I have two minutes to tell you something interesting another here in other topics. uh So, um as I said before, we uh oh, I can't.

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um Sorry, if I pronounce it wrong, sonic was talking about separating the network and it's more than and.

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uh Firstly, um I think sovereign, it's not a basic network, it's a another organization and about andy um adding a new separate in the network. uh In fact, you just need to uh start to work start pull with specific scripts that creates a pull, uh throw using guiness uh file with ignis transaction, which contains a few start net start nodes.

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And after this, after this, if you want to add a new node, you can send speech specific transaction node transaction to adding nodes and to make it validator.

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uh Yes, I think we are out of time thanks for a question. uh If you have uh more questions, please uh send some to me in email or in rocket charts and hope to see you in community calls or online thanks for a question and for your attention.

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