https://github.com/mattrglobal/ffi-bbs-signatures
An FFI wrapper around the implementation of BBS+ signatures in Ursa
https://github.com/mattrglobal/ffi-bbs-signatures
assurance nucleus
Last synced: about 1 year ago
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An FFI wrapper around the implementation of BBS+ signatures in Ursa
- Host: GitHub
- URL: https://github.com/mattrglobal/ffi-bbs-signatures
- Owner: mattrglobal
- License: apache-2.0
- Archived: true
- Created: 2020-05-12T20:12:23.000Z (about 6 years ago)
- Default Branch: master
- Last Pushed: 2025-02-26T00:16:11.000Z (over 1 year ago)
- Last Synced: 2025-04-28T06:22:47.662Z (about 1 year ago)
- Topics: assurance, nucleus
- Language: Rust
- Homepage:
- Size: 43.6 MB
- Stars: 23
- Watchers: 10
- Forks: 21
- Open Issues: 15
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: docs/CONTRIBUTING.md
- License: LICENSE
Awesome Lists containing this project
README
# BBS Signature FFI Wrapper
This repository is home to a foreign function interface (FFI) wrapper around the Rust based [bbs crate](https://crates.io/crates/bbs) maintained by the [Hyperledger Ursa project](https://github.com/hyperledger/ursa).
[BBS+ Signatures](https://github.com/mattrglobal/bbs-signatures) are a digital signature algorithm originally born from
the work on [Short group signatures](https://crypto.stanford.edu/~xb/crypto04a/groupsigs.pdf) by Boneh, Boyen, and
Shachum which was later improved on in
[Constant-Size Dynamic k-TAA](http://web.cs.iastate.edu/~wzhang/teach-552/ReadingList/552-14.pdf) as BBS+ and touched on
again in section 4.3 in
[Anonymous Attestation Using the Strong Diffie Hellman Assumption Revisited ](https://www.researchgate.net/publication/306347781_Anonymous_Attestation_Using_the_Strong_Diffie_Hellman_Assumption_Revisited).
[BBS+ Signatures](https://github.com/mattrglobal/bbs-signatures) require a
[pairing-friendly curve](https://tools.ietf.org/html/draft-irtf-cfrg-pairing-friendly-curves-03), this library includes
support for [BLS12-381](https://tools.ietf.org/html/draft-irtf-cfrg-pairing-friendly-curves-03#section-2.4).
[BBS+ Signatures](https://github.com/mattrglobal/bbs-signatures) allow for multi-message signing whilst producing a
single output signature. With a BBS signature, a [proof of knowledge](https://en.wikipedia.org/wiki/Proof_of_knowledge)
based proof can be produced where only some of the originally signed messages are revealed at the discretion of the
prover.
## Supported Environments
Every release of this repository publishes a new [github release](https://github.com/mattrglobal/ffi-bbs-signatures/releases/tag/v0.1.0) including publishing the platform specific artifacts required to run the library in different environments. See the [release process](./docs/RELEASE.md) for
more details on this process
# Getting started
This repository makes use of [Yarn](https://yarnpkg.com/) to manage the dependencies related to the development environment
To install the development dependencies run
```
yarn install --frozen-lockfile
```
To build the library for all available platforms run
```
yarn build
```
## Available wrappers
.NET C# wrapper
```
./wrappers/dotnet
```
Java wrapper
```
./wrappers/java
```
Objective-C wrapper
```
./wrappers/obj-c
```
Python wrapper
```
./wrappers/python
```
Each wrapper has individual documentation:
- [.NET C#](./wrappers/dotnet/README.md)
- [Java](./wrappers/java/README.md)
- [Objective-C](./wrappers/obj-c/README.md)
- [Python](./wrappers/python/README.md)
## Project Structure
```
├── docs
│ └─ {file_name.md}
│
│── scripts # Bash scripts for building static/dynamic rust libs
│── src # Rust Bbs Signatures wrapper
├── wrappers # Individual wrapper source code
│ └─ {wrapper_name}
│ ├── README.md
│ └─ {src files}
│
├── README.md
└── CHANGELOG.md
```
## Contributing
Read our [contributing guide](./docs/CONTRIBUTING.md) to learn about our development process.