| Title | We will enable Iroha to easily use different consensus modules by creating a proper API. |
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| Difficulty |
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In some of the projects this year we've decided to focus on modularity and decoupling which makes a lot of sense when we talk about open source and interoperability. In our chats we receive questions about decoupling different components – some of the users would like to plug different modules in and out.
To provide them with that option and make development easier and more secure, we would like to explore the option of following the example of the pluggable consensus in HL Sawtooth. In the best case scenario result, we will be able to reuse consensus modules from Sawtooth in Iroha and vice-versa in the future.
So, overall, this project will increase HL projects interoperability and make Iroha more flexible.
In HL Sawtooth, the consensus module is separated by a consensus endpoint: https://sawtooth.hyperledger.org/docs/core/nightly/1-2/sysadmin_guide/about_dynamic_consensus.html
HL Iroha currently includes a unique consensus algorithm called YAC: https://arxiv.org/pdf/1809.00554.pdf. It has 2 modes of operation: CFT and BFT, but the latter only under an assumption of non-malicious ordering service. These modes are controlled in the source code, which is not flexible.
The result of this project is a reworked source code of Iroha that provides a simple API for plugging different consensus modules found in other projects, along with some consensus modules that can work with Iroha.
HL Iroha, HL Sawtooth
See skills
C++, basic understanding of consensus in distributed systems.
Seamless reusability of consensus providers across HL projects.
Full time preferred, but part time also possible.
Andrei Lebedev (andrei@soramitsu.co.jp, Telegram: lebdron),
Mikhail Boldyrev (boldrev@soramitsu.co.jp, Telegram: mboldyrev).