Description 

We would like to explore the option of following the example of HL Sawtooth in their approach to keeping the consensus module pluggable. In the best case scenario result, we will be able to reuse a consensus from Sawtooth in Iroha. This will increase HL projects interoperability and make Iroha more flexible.

Additional Information

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.

Learning Objectives

Architectural vision of a flexible blockchain platform. Experience of integration of open source projects.

Expected Outcome

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.

Relation to Hyperledger 

HL Iroha, HL Sawtooth

Education Level

Skills

C++, basic understanding of consensus in distributed systems.

Future plans

Seamless reusability of consensus providers across HL projects.

Preferred Hours and Length of Internship

Full time preferred, but part time also possible.

Mentors Names and Contact Info

Andrei Lebedev (andrei@soramitsu.co.jp, Telegram: lebdron),

Mikhail Boldyrev (boldrev@soramitsu.co.jp, Telegram: mboldyrev).