NillionNetwork/nada-by-example

Implement the Poseidon hash function

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#14 opened on Aug 13, 2024

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Description

Request a New Nada Example

Description

We are looking to implement the Poseidon cryptographic hash function in Nada. One of the key advantages of Poseidon is that it doesn’t rely on bitwise arithmetic, making it well-suited for Nada.

Use Case

Poseidon is specifically designed for use in zero-knowledge proof systems like zk-SNARKs, where secure and efficient hashing is essential. Implementing Poseidon in Nada will enable developers to integrate this hash function into privacy-focused protocols and applications, enhancing the cryptographic capabilities of the platform.

Specific Requirements

Inputs and Outputs:

  • use any convention for representing inputs and outputs
  • use “known” test vectors to verify the correctness of their implementation. Test vectors are specific input-output pairs like the Poseidon test vectors here

Contributor guide

Research direction
Study the Poseidon hash function specification and implement it in Nada using the provided test vectors to verify correctness.
Tech stack
python
Domain
cryptography
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Python
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45