# dalek-cryptography/bulletproofs

A pure-Rust implementation of Bulletproofs using Ristretto.

Repository: https://github.com/dalek-cryptography/bulletproofs
Canonical: https://ross.abutalabs.com/products/bulletproofs
Language: Rust
License: MIT
License Family: permissive
Last push: 2024-07-23T19:30:43+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3135, "days_push": 771, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1130, forks 238 (observed 2026-08-28T04:03:42.374566+00:00)

## What it is
A pure-Rust implementation of Bulletproofs zero-knowledge range proofs using the Ristretto group over Curve25519. It supports single and aggregated range proofs, multiparty computation with session types, and an experimental programmable constraint system API.

## Use cases
- generate zero-knowledge range proofs for confidential transactions
- aggregate range proofs across multiple parties
- prove statements with rank-1 constraint systems
- build privacy-preserving blockchain transactions
- compose zero-knowledge proofs with other Merlin-based protocols

## When to choose
- you need fast Bulletproofs range proofs in Rust
- you want multiparty proof aggregation with statically enforced protocol flow
- you need proofs composable via Merlin transcripts
- you prefer Ristretto over secp256k1 for performance

## When to avoid
- you need a stable constraint system API for production (it is experimental)
- you need general-purpose SNARKs rather than Bulletproofs
- your stack is not Rust

## Facets
- artifact type: library
- maturity: maintenance
- function: cryptography, security
- domain: privacy, blockchain
- platform: rust, cross-platform
- tags: zero-knowledge-proofs, bulletproofs, range-proofs, ristretto, multiparty-computation, zk-snarks, cryptography, algorithms

## Member repositories
- dalek-cryptography/bulletproofs (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:42.374566+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:38:14.561722+00:00, confidence not recorded.
  - readme: https://github.com/dalek-cryptography/bulletproofs (fetched 2026-08-28T04:03:42.374566+00:00, sha fd484358df25)
- Data as of 2026-08-30T08:39:29.467469+00:00.