# rust-openssl/rust-openssl

OpenSSL bindings for Rust

Repository: https://github.com/rust-openssl/rust-openssl
Canonical: https://ross.abutalabs.com/products/rust-openssl
Language: Rust
License Family: other
Last push: 2026-08-26T02:22:19+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 99, release rhythm 88, longevity 100
- inputs: {"age_days": 4631, "days_push": 8, "days_rel": 82, "gap_med": 3.5, "n_releases_24m": 29}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1641, forks 837 (observed 2026-08-28T04:05:15.351156+00:00)

## What it is
Rust bindings to the OpenSSL cryptography and TLS library, exposing its APIs (certificates, keys, hashing, SSL/TLS connections) to Rust programs. It is the de facto standard crate for using OpenSSL from Rust, published on crates.io as `openssl`.

## Use cases
- use openssl from rust
- establish tls connections in a rust program
- generate and manage x509 certificates in rust
- hash and sign data with openssl in rust
- wrap an existing c openssl codebase in rust

## When to choose
- you need OpenSSL's specific algorithms or FIPS compliance in Rust
- you must interoperate with systems requiring OpenSSL
- you want the most mature, widely used TLS/crypto binding for Rust

## When to avoid
- you want a pure-Rust crypto stack with no C dependency (consider rustls/ring)
- you cannot build or link the OpenSSL C library in your environment
- you only need basic hashing or AEAD available in pure-Rust crates

## Facets
- artifact type: library
- maturity: stable
- function: cryptography, security, sdk
- domain: security, developer-tools, programming-languages
- platform: rust, windows, cross-platform
- tags: openssl, tls, bindings, rust-crate, ssl, linux, macos

## Member repositories
- rust-openssl/rust-openssl (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:15.351156+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 2026-08-30T03:46:23.227142+00:00, confidence not recorded.
  - readme: https://github.com/rust-openssl/rust-openssl (fetched 2026-08-28T04:05:15.351156+00:00, sha c5ddde25c275)
- Data as of 2026-08-30T08:39:29.467469+00:00.