BLAKE2b Implementation in Pantheon for Istanbul Hard Fork

[shemnon]

Description

As part of the Istanbul network upgrade, BLAKE2b support will be added to Ethereum.

This bounty is to implement a BLAKE2b precompile as part of Pantheon that conforms to the specification in EIP-131 (as specified in this Github PR link) as required for the Istanbul Hard fork EIP-1679.

Note: if you wish to work on this bounty for the hackathon, please comment on the Github issue so that others know you are working on it.

The implementations should use a coding style consistent with the rest of Pantheon. Please see our Contribution Guidelines for more information, along with the following classes for reference:

• The RipeMD precompiled contract is expected to have a similar pattern: Github search results
• The BouncyCastle library has a Blake2bDigest that may be of use implementing the EIP. Bouncy Castle has a MIT style license and is compatible with our Apache 2.0 license. Be sure to attribute authorship and point to the relevant license when copying code.

Submission Requirements

• Implementation of a BLAKE2b precompile as part of Pantheon which is compliant with EIP-131 (also possibly known under the numbers 2129 and 2024) and the requirements for the Istanbul network upgrade.
• Unit test code to validate correct behavior.
• Integration test to demonstrate correct behavior.
• Passes all reference tests for the Blake 2b precompiles in the Ethereum reference tests, if they are available prior to the submission deadline.
• All libraries and dependencies must use Apache 2.0 friendly licenses
• A demo.md file that explains how PegaSys engineers can verify that the code works as intended, ideally without the use of 3rd party tools.

Submission Deadline: July 10th

Judging Criteria

The bounty will be awarded to the best submission based on compliance the EIP specification, code and testing quality, compliance with Contribution Guidelines, performance speed, maintenance burdens, and the Submission Requirements above, according to PegaSys.

Judging Date: July 12th

Bounty: 1000 DAI

[gitcoinbot]

Issue Status: 1. Open 2. Started 3. Submitted 4. Done

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This issue now has a funding of 1000.0 DAI (1000.0 USD @ $1.0/DAI) attached to it as part of the PegaSysEng fund.

• If you would like to work on this issue you can 'start work' on the Gitcoin Issue Details page.
• Want to chip in? Add your own contribution here.
• Questions? Checkout Gitcoin Help or the Gitcoin Slack
• $131,481.89 more funded OSS Work available on the Gitcoin Issue Explorer

[atoulme]

I'll look at implementing this functionality, if you'll have me.

[gitcoinbot]

Issue Status: 1. Open 2. Started 3. Submitted 4. Done

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Work has been started.

These users each claimed they can complete the work by 1 week, 5 days from now.
Please review their action plans below:

1) iikirilov has started work.

Read the EIP
Implement the precompile
Write tests
Profit
2) adhikasp has started work.

• Read EIP
• Read existing Pantheon codebase
• Implement Blake2b to crypto/Hash module
• Write tests
  3) ramanan12345 has started work.

Work with github
Study
Whether is it possible solve

Learn more on the Gitcoin Issue Details page.

[timbeiko]

@atoulme this bounty is part of the ongoing Gitcoin hackathon. Anyone is free to start working on it, but the bounty will only be awarded to the winning implementation at the end of the hackathon.

[iikirilov]

@timbeiko I'm a bit confused here. Is the aim do a blake2b precompile or a blake2b f compression precompile?

From what I understand it is the latter - as the other PR is closed...

[shemnon]

It's the Compression Function F precompile, this PR will update EIP-131 - https://github.com/ethereum/EIPs/pull/2129/files

[mhluongo]

To be clear the correct EIP number for the F precompile is EIP-152!

https://github.com/ethereum/EIPs/pull/2129/files

[timbeiko]

@mhluongo yours and @shemnon's link are pointing to the same PR. Did the EIP number just change? cc: @iikirilov

[iikirilov]

EIP-152 is the successor of EIP-131 as stated in ethereum/EIPs#131 (comment)

[gitcoinbot]

Issue Status: 1. Open 2. Started 3. Submitted 4. Done

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Work for 1000.0 DAI (1000.0 USD @ $1.0/DAI) has been submitted by:

1. @iikirilov

@alexvotofuture please take a look at the submitted work:

• PR by @iikirilov

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• Learn more on the Gitcoin Issue Details page
• Want to chip in? Add your own contribution here.
• Questions? Checkout Gitcoin Help or the Gitcoin Slack
• $132,291.63 more funded OSS Work available on the Gitcoin Issue Explorer

[shemnon]

Because completion of the hack was impossible (specifically the Gas calculation has not been specified in the EIP) we have decided to offer a compromise prize. @iikirilov submitted the most complete solution, and that solution has the hardest part of the EIP complete: an implementation of the F compression function. We will award half the hackathon bounty now based on that work. Once the EIP is complete @iikirilov can submit a completed implementation ready for integration for the second half of the prize.

[gitcoinbot]

⚡️ A tip worth 500.00000 DAI (500.0 USD @ $1.0/DAI) has been granted to @iikirilov for this issue from @alexvotofuture. ⚡️

Nice work @iikirilov! Your tip has automatically been deposited in the ETH address we have on file.

• $173861.88 in Funded OSS Work Available at: https://gitcoin.co/explorer
• Incentivize contributions to your repo: Send a Tip or Fund a PR
• No Email? Get help on the Gitcoin Slack

[gitcoinbot]

Issue Status: 1. Open 2. Started 3. Submitted 4. Done

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This Bounty has been completed.

Additional Tips for this Bounty:

• alexvotofuture tipped 500.0000 DAI worth 500.0 USD to iikirilov.

---

• Learn more on the Gitcoin Issue Details page
• Questions? Checkout Gitcoin Help or the Gitcoin Slack
• $172,861.88 more funded OSS Work available on the Gitcoin Issue Explorer

[gitcoinbot]

⚡️ A tip worth 500.00000 DAI (500.0 USD @ $1.0/DAI) has been granted to @iikirilov for this issue from @alexvotofuture. ⚡️

Nice work @iikirilov! Your tip has automatically been deposited in the ETH address we have on file.

• $144907.84 in Funded OSS Work Available at: https://gitcoin.co/explorer
• Incentivize contributions to your repo: Send a Tip or Fund a PR
• No Email? Get help on the Gitcoin Slack