Identity management services, which validate the identities of users and systems.
Notable frameworks: Hyperledger Fabric and Hyperledger Besu
Two notable Hyperledger projects include Hyperledger Fabric and Hyperledger Besu:
Hyperledger Fabric
This is one of the most popular projects in Hyperledger. It is a permissioned blockchain infrastructure used to build blockchain-based products, software and applications. Hyperledger Fabric was made in cooperation with IBM and Digital Asset. It provides a modular architecture that defines roles between nodes, execution of smart contracts and configurable consensus services. Features of Fabric include the use of smart contracts, as well as pluggable Hyperledger Fabric consensus protocols. Fabric also supports different programming languages through the installation of modules. Hyperledger Fabric is used with integration projects that need a distributed ledger.
Hyperledger Besu
This is an open source Ethereum codebase that can run on private permissioned platforms or the Ethereum public network. It features the Ethereum Virtual Machine (EVM), consensus algorithms, user-facing APIs and monitoring. Besu is useful for projects that need interoperability within the Ethereum ecosystem, like decentralized applications, for example.
Other Hyperledger tools and projects
Hyperledger Fabric and Besu are not the only two projects Hyperledger has. Hyperledger offers multiple projects and tools currently active or under incubation — meaning they require certain exit criteria before being declared active and production-ready. Some of these projects include the following:
* Hyperledger AnonCreds. This ledger-agnostic project specifies anonymous credentials –anoncreds — a type of verifiable credential.
* Hyperledger Aries. This toolkit enables creating, transmitting and storing digital credentials and decentralized key management.
* Hyperledger Bevel. An accelerator for distributed ledger technology deployment, Bevel enables DLT set-up, deployment and integration with new organizations.
* Hyperledger Cacti. An interoperability and plugin-based framework for connecting and running transactions across multiple different types of ledgers.
* Hyperledger Caliper. This blockchain benchmark tool is used to evaluate the performance of blockchain implementations. However, it doesn’t come with predefined standards because blockchain implementations might all require different sets of standards.
* Hyperledger Cello. This project is a blockchain-as-a-service toolkit and operating system used to create, terminate and manage blockchain services.
* Hyperledger FireFly. This is an open source software stack of middleware for Web3 applications.
* Hyperledger Indy. A framework made for decentralized identities, it comes with components, tool sets and libraries. It also includes self-sovereignty, which securely stores all identity-based documentation.
* Hyperledger Iroha. A blockchain framework used to integrate with existing networks, Iroha has a modular design, control-based access, access to many libraries, and asset and identity management. It is used in industries such as financial services, healthcare and education.
* Hyperledger Solang. This is a Solidity compiler — which is a compiler that translates Solidity code into bytecode for EVMs — that enables smart contract portability.
Hyperledger has also moved several projects to a dormant, or end-of-life status. Some examples include Avalon, Burrow, Explorer, Quilt and Sawtooth.
