LibSubmarine

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A work-in-progress implementation of better submarine sends for Ethereum.

Submarine Steps

• A User
• B Commit Address (No Private key)
• C Libsubmarine
• D Dapp, Application (e.g Auction, DEX, ICO, etc.)
• MPT Merkle-Patricia Proof of TxCommit Inclusion on-chain

     TxCommit (1)
A +-------------------> B
+                       +
|                       |   TxUnlock (3)
|                       | (calls unlock)
|                       v
+---------------------> C < - - - - - - - - - - - - -+ D
                         (overload) onSubmarineReveal
    TxReveal (2)           (query) revealedAndUnlocked(submarineId)
 (call reveal + MPT
 + RLP-encoded TxUnlock)
                                                        

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Workflow and API Guide

For a more in-depth discussion of what the workflow / steps from a user's perspective for a Submarine transaction looks like, refer to WORKFLOW.md.

For an in-depth discussion of how to incorporate LibSubmarine into your existing application, as well as some software architecture notes, see API.md.

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Contract Unit Tests / Examples / Offchain Components

Install Solc (Installation guide)

Use pip to install python dependencies (we recommend using a virtualenv with >= python3.6):

pip3 install -r requirements.txt

Run the tests:

python3 test/test_whateverComponent.py

The tests are particularly useful to see as a reference, since they basically model an end-users interaction with LibSubmarine from start to finish.

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Disclaimer

This project is a Work in Progress. It has not undergone a formal security audit from an independent 3rd party (though we would like to have that done).

For a high level discussion around the research of Submarine Sends and some historical implementations, please refer to the blog post: To Sink Frontrunners, Send in the Submarines.

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Authors

LibSubmarine's development was started by the Submarines group at the 2018 IC3 Ethereum bootcamp, but is now an open source project. Anyone is encouraged to contribute.

IC3 Ethereum Bootcamp <3 2018