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https://github.com/SleepingShell/noir-chacha20

Last synced: 3 months ago
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Host: GitHub
URL: https://github.com/SleepingShell/noir-chacha20
Owner: SleepingShell
Created: 2023-10-06T03:33:27.000Z (over 1 year ago)
Default Branch: main
Last Pushed: 2023-10-10T18:39:06.000Z (over 1 year ago)
Last Synced: 2024-08-03T16:09:56.496Z (6 months ago)
Language: Rust
Size: 21.5 KB
Stars: 0
Watchers: 1
Forks: 1
Open Issues: 0
Metadata Files:
- Readme: README.md

Awesome Lists containing this project

awesome-noir - ChaCha20 Implementation - a Noir implementation of ChaCha20 as defined by [RFC7539](https://www.rfc-editor.org/rfc/rfc7539) (Libraries / Cryptography)

README

![Test workflow](https://github.com/sleepingshell/noir-chacha20/actions/workflows/ci.yaml/badge.svg)
# Noir-Chacha20

This is a Noir implementation of ChaCha20 as defined by [RFC7539](https://www.rfc-editor.org/rfc/rfc7539).
> [!IMPORTANT]
> This implementation works on 4-byte words, as opposed to the RFC working with 1-byte words.

Due to the above, the tests provided are adopted to 4-byte words

The `crates/chacha20_example` provides a small binary implementation to measure circuit size.
```
+------------------+------------------------+--------------+----------------------+
| Package | Language | ACIR Opcodes | Backend Circuit Size |
+------------------+------------------------+--------------+----------------------+
| chacha20_example | PLONKCSat { width: 3 } | 23969 | 34201 |
+------------------+------------------------+--------------+----------------------+
```

On a Ryzen 7 7700X, proving a single 32-byte message encryption took `42s`.