Key Points
- YUI uses IBC protocol from Cosmos to connect Besu, Fabric, Corda now
- Block explorer and admin dashboard views coming later
- Compare to Cacti which does the same capabilities differently
References
| Reference_description_with_linked_URLs_______________________ | Notes______________________________________________________________ |
|---|---|
| https://www.hyperledger.org/blog/2021/06/09/meet-yui-one-the-new-hyperledger-labs-projects-taking-on-cross-chain-and-off-chain-operations | |
YUI Key Concepts
YUI’s design principles.
Cross-Authentication: Cross-authentication allows blockchains to be interoperable without requiring a trusted third party by on-chain verification.
Blockchain-agnostic communication specs: By using a unified communication protocol, we can introduce a blockchain-agnostic message layer between blockchains.
Arbitrary data transfer and computation: By exchanging messages with a unified communication protocol, arbitrary data transfer and computation is possible. It also enables developers to implement arbitrary application logic that is not limited to a token transfer.
Avoid adding components that introduce additional trust: Introducing such components that need additional trust may decrease the level of security of a system as it would be bounded by the lowest security component in the system.
Do not introduce a new layer: Each actor (of ledgers) has only to interact with a respective ledger of its interest to complete a cross-chain operation unless the application has additional requirements.
YUI Architecture
As you can see on the diagram, we have an IBC Module on each ledger and a Relayer between them. As Client modules should be designed to support each underlying ledger, we have built different Client modules for each ledger such as Client modules for Hyperledger Fabric and for Hyperledger Besu.
For cross-chain communication, the design of YUI is based on Inter Blockchain Communication (IBC) protocol by Cosmos project, with extensions to support various Hyperledger projects.
Check out the IBC GitHub page to learn more about IBC and related words: https://github.com/cosmos/ibc
Detail session at HGF 2021 https://sched.co/j3cz
PDF - Fabric-IBC, Besu-IBC Combined with IRITA
Potential Value Opportunities
Potential Challenges
Candidate Solutions
Step-by-step guide for Example
sample code block