Overview

Status: Open Project Type: Traditional: One applicant is selected to work on the task. Time Commitment: Days Experience Level: Intermediate Size: USD 2'000 in ICP

Description

Since the Internet Computer allows canisters to sign Ethereum transactions, there's a need to hash those transactions. This is currently not directly possible in canisters written in Motoko. and a workaround like calling the EVM utility canister has to be used.

In this bounty, you will implement two cryptographic hashing algorithms in Motoko. Keccak-256 is the hashing algorithm used for signing Ethereum transactions. It is similar to the standardized SHA-3 but uses a different padding. Hence, it makes sense to include both variations, although the official SHA-3 is not used in Ethereum.

Acceptance Criteria

Implementation with tests
Meaningful readme with usage example
Open Source license (e.g. MIT)
Available in the mops package manager

How to apply?

Include links to previous relevant work.
Include a brief overview of how you will complete the task.
Give an estimated timeline for completing the task.
Post your application text in this thread

References

SHA-3 and Keccak implementations

https://github.com/ethereum/eth-hash
https://github.com/RustCrypto/hashes/tree/master/sha3

Examples of cryptographic hashing libraries in Motoko

https://github.com/timohanke/motoko-sha2
https://github.com/aviate-labs/crypto.mo
https://github.com/tgalal/motoko-bitcoin

BNT-4: Keccak-256 and SHA3 Motoko Library

INSTRUCTIONS