https://github.com/ZenGo-X/multi-party-eddsa

Rust implementation of multi party Ed25519 signature scheme.
https://github.com/ZenGo-X/multi-party-eddsa

blockchain cryptocurrency cryptography ed25519 multi-party-computation rust secret-shares signature

Last synced: 3 months ago
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Rust implementation of multi party Ed25519 signature scheme.

• Host: GitHub
• URL: https://github.com/ZenGo-X/multi-party-eddsa
• Owner: ZenGo-X
• License: gpl-3.0
• Created: 2018-07-19T06:31:07.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2024-05-06T20:05:36.000Z (6 months ago)
• Last Synced: 2024-06-11T21:25:16.361Z (5 months ago)
• Topics: blockchain, cryptocurrency, cryptography, ed25519, multi-party-computation, rust, secret-shares, signature
• Language: Rust
• Homepage:
• Size: 124 KB
• Stars: 128
• Watchers: 14
• Forks: 45
• Open Issues: 7
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE

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• awesome-starred - ZenGo-X/multi-party-eddsa - Rust implementation of multi party Ed25519 signature scheme. (cryptocurrency)

README

        

# Multi Party EdDSA signatures

Rust implementation of multiparty Ed25519 signature scheme.

#### Currently supporting:

* [Aggregated Signatures](https://github.com/KZen-networks/multi-party-ed25519/wiki/Aggregated-Ed25519-Signatures)

* [Accountable-Subgroup Multisignatures](https://github.com/KZen-networks/multi-party-schnorr/blob/master/papers/accountable_subgroups_multisignatures.pdf).

* Threshold EdDSA scheme based on [provably secure distributed schnorr signatures and a {t,n} threshold scheme](https://github.com/KZen-networks/multi-party-schnorr/blob/master/papers/provably_secure_distributed_schnorr_signatures_and_a_threshold_scheme.pdf). For more efficient implementation we used the DKG from [Fast Multiparty Threshold ECDSA with Fast Trustless Setup](https://eprint.iacr.org/2019/114.pdf). The cost is robustness: if there is a malicious party out of the n parties in DKG the protocol stops and if there is a malicious party out of the t parties used for signing the signature protocol will stop.

The above protocols are for Schnorr signature system. EdDSA is a variant of Schnorr signature system with (possibly twisted) Edwards curves. We adopt the multi party implementations to follow Ed25519 methods for private key and public key generation according to [RFC8032](https://tools.ietf.org/html/rfc8032#section-5.1) 

License

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This library is released under the terms of the GPL-3.0 license. See [LICENSE](LICENSE) for more information.

Development Process

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The contribution workflow is described in [CONTRIBUTING.md](CONTRIBUTING.md).

Contact

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Feel free to [reach out](mailto:[email protected]) or join the ZenGo X [Telegram](https://t.me/joinchat/ET1mddGXRoyCxZ-7) for discussions on code and research.