https://github.com/edwinhere/nazgul
A library that implements Ring Signatures
https://github.com/edwinhere/nazgul
cryptocurrency cryptography monero ring-signatures
Last synced: about 1 month ago
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A library that implements Ring Signatures
- Host: GitHub
- URL: https://github.com/edwinhere/nazgul
- Owner: edwinhere
- License: mit
- Created: 2020-05-25T12:12:10.000Z (almost 5 years ago)
- Default Branch: master
- Last Pushed: 2025-02-22T02:39:59.000Z (2 months ago)
- Last Synced: 2025-03-16T17:25:19.998Z (about 2 months ago)
- Topics: cryptocurrency, cryptography, monero, ring-signatures
- Language: Rust
- Homepage: https://crates.io/crates/nazgul
- Size: 116 KB
- Stars: 10
- Watchers: 1
- Forks: 3
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# Nazgul
A library that implements [Ring Signatures](https://en.wikipedia.org/wiki/Ring_signature). The following schemes have been implemented based on [Chapter 3 of Zero to Monero 2.0 (Z2M2)](https://www.getmonero.org/library/Zero-to-Monero-2-0-0.pdf):
- Spontaneous Anonymous Group (SAG) signatures
- Back's Linkable Spontaneous Anonymous Group (bLSAG) signatures
- Multilayer Linkable Spontaneous Anonymous Group (MLSAG) signatures
- Concise Linkable Spontaneous Anonymous Group (CLSAG) signatures
~~The following scheme has also been implemented from outside [Z2M2](https://www.getmonero.org/library/Zero-to-Monero-2-0-0.pdf):~~
- ~~[DLSAG: Non-Interactive Refund Transactions For Interoperable Payment Channels in Monero](https://eprint.iacr.org/2019/595.pdf)~~
Note: The MDLSAG (Multilayer Dual Linkable Spontaneous Anonymous Group) and DLSAG signature scheme was removed as its implementation did not correctly match the specifications in the [cited paper](https://eprint.iacr.org/2019/595.pdf).
> All blockquotes (except this one) in this documentation are from [Z2M2](https://www.getmonero.org/library/Zero-to-Monero-2-0-0.pdf)
This library is designed to work with any 512-bit (64 byte output) hashing function. It uses the
[Ristretto elliptic curve](https://doc.dalek.rs/curve25519_dalek/ristretto/) for ease of use and better security.
This library is `#![no_std]` by default so it is possible to compile this library for embedded devices and WebAssembly but we haven't tried.
# Testing
The library includes comprehensive test suites for all features:
- Standard tests: `cargo test`
- No-std tests: `cargo test --no-default-features --features no_std`
- Serialization tests: `cargo test --features serde-derive`
All tests are run automatically on pull requests and commits via GitHub Actions. The pre-commit hook also ensures all test suites pass before allowing commits.
# Documentation
It is [here](https://docs.rs/nazgul/latest/nazgul/)