Draft BLAKE2b precompile EIP

[tjade273]

No description provided.

[Teerasa]

Free bitcoin to me.... Wonderful

[Souptacular]

EIP editor here: Please tag with editor-needs-to-review when you feel it's ready to go. It is possible that the Metropolis EIPs serve the purpose of allowing Zcash header verification in Ethereum.

@chriseth: Do the proposed metro EIPs related to zk-SNARKS make this EIP unnecessary?

Also, please enable allow edits from maintainers.

[chriseth]

@Souptacular this is unrelated to zksnarks, but zksnarks might allow for speedups here.

[Arachnid]

Please renumber as EIP-131 and update the filename and header, and we can accept this as a draft.

[axic]

Cannot this be written as just 0xc?

[axic]

Does INSIZE refer to D_INSIZE?

[axic]

What does return `0` means? Call fails? Provided output memory is not touched?

I assume it is just a non-existent address before METROPOLIS_FORK_BLKNUM and therefore it s a regular failure.

[axic]

I think this should be updated with the missing fields from eip-X.md.

[Arachnid]

This is a courtesy notice to let you know that the format for EIPs has been modified slightly. If you want your draft merged, you will need to make some small changes to how your EIP is formatted:

• Frontmatter is now contained between lines with only a triple dash ('---')
• Headers in the frontmatter are now lowercase.

If your PR is editing an existing EIP rather than creating a new one, this has already been done for you, and you need only rebase your PR.

In addition, a continuous build has been setup, which will check your PR against the rules for EIP formatting automatically once you update your PR. This build ensures all required headers are present, as well as performing a number of other checks.

Please rebase your PR against the latest master, and edit your PR to use the above format for frontmatter. For convenience, here's a sample header you can copy and adapt:

---
eip: <num>
title: <title>
author: <author>
type: [Standards Track|Informational|Meta]
category: [Core|Networking|Interface|ERC] (for type: Standards Track only)
status: Draft
created: <date>
---

[axic]

Closes #152.

[Souptacular]

Please contribute to the discussion on this forum: https://ethereum-magicians.org/t/blake2b-f-precompile/3157/6

[axic]

#2024 tries to merge this PR. If that is merged, this one should be closed.

[axic]

Since the author has not responded for over a year and there are two successor EIPs (#2024, #2129), I suggest to close this.

[axic]

It seems to be that some of the original proposers converged around #2129 being the successor EIP. Closing this to avoid confusion. @tjade273 if you feel otherwise, please do not hesitate to leave a message here so we can reopen it.