rustls-ffi

{
  "aliases": [],
  "alternatives": [
    "OpenSSL",
    "LibreSSL",
    "GnuTLS",
    "BoringSSL"
  ],
  "build_dependencies": [
    "cargo-c",
    "pkgconf",
    "rust"
  ],
  "categories": [
    "library",
    "binding",
    "crypto",
    "ssl-tls"
  ],
  "caveats": null,
  "conflicts_with": [],
  "dependencies": [],
  "deprecated": 0,
  "deprecation_reason": null,
  "desc": "FFI bindings for the rustls TLS library",
  "disable_reason": null,
  "disabled": 0,
  "enrichment_fetched_at": "2026-06-20T23:41:13+00:00",
  "first_seen": "2026-06-20T23:34:18+00:00",
  "full_name": "rustls-ffi",
  "github_default_branch": "main",
  "github_last_commit_at": "2026-06-05T08:59:46Z",
  "github_readme_excerpt": "# Rustls FFI bindings - use Rustls from any language\n\n[![Build Status](https://github.com/rustls/rustls-ffi/actions/workflows/test.yaml/badge.svg)](https://github.com/rustls/rustls-ffi/actions/workflows/test.yaml)\n\nThis crate contains FFI bindings for the [rustls](https://docs.rs/rustls) TLS\nlibrary, so you can use the library in any language that supports FFI (C, C++,\nPython, etc). It also contains demo C programs that use those bindings to run an\nHTTPS server, and to make an HTTPS request.\n\nRustls is a modern TLS library written in Rust, meaning it is less likely to\nhave memory safety vulnerabilities than equivalent TLS libraries written in\nmemory unsafe languages.\n\nIf you are using rustls-ffi to replace OpenSSL, note that OpenSSL provides\n[cryptographic primitives](https://www.openssl.org/docs/man3.0/man7/crypto.html)\nin addition to a TLS library. Rustls-ffi only provides the TLS library. If you\nuse the cryptographic primitives from OpenSSL you may need to find another library\nto provide the cryptographic primitives.\n\n[![Packaging status](https://repology.org/badge/vertical-allrepos/rustls-ffi.svg)](https://repology.org/project/rustls-ffi/versions)\n\n# Build rustls-ffi\n\nTo build rustls-ffi as a static or shared library you\u0027ll need to [install the\nRust toolchain](https://rustup.rs/) (version 1.73 or above) as well as \n[cargo-c].\n\nThe [cargo-c] tool can be installed from \n[your package manager](https://github.com/lu-zero/cargo-c?tab=readme-ov-file#availability)\nor using Cargo with `cargo install cargo-c`.\n\nIf you plan to build the `client` and `server` [C examples](#example-applications) \nyou will also need `cmake` and a C compiler (`gcc` and `clang` should both work, \nas well as MSVC on Windows).\n\n[cargo-c]: https://github.com/lu-zero/cargo-c\n\n## Building and Installing\n\n```bash\ngit clone https://github.com/rustls/rustls-ffi\ncd rustls-ffi\nsudo cargo capi install --release\n```\n\nIf you receive a message like \"error: no such command capi\" you need to install\n[cargo-c]",
  "github_repo": "rustls/rustls-ffi",
  "github_stars": 168,
  "github_topics": [
    "cryptography",
    "ffi",
    "rust",
    "ssl",
    "tls"
  ],
  "homepage": "https://github.com/rustls/rustls-ffi",
  "homepage_og_description": null,
  "homepage_og_image": null,
  "homepage_title": null,
  "installs_30d": 2050,
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  "installs_90d": 6505,
  "keg_only": 0,
  "keg_only_reason": null,
  "last_seen": "2026-06-20T23:34:18+00:00",
  "license": "Apache-2.0 OR MIT OR ISC",
  "llm_generated_at": "2026-06-20T23:48:07+00:00",
  "llm_model": "claude-haiku-4-5",
  "name": "rustls-ffi",
  "oldnames": [],
  "one_liner": "FFI bindings for Rustls, a memory-safe TLS library written in Rust, enabling use from C, C++, Python and other languages.",
  "optional_dependencies": [],
  "rank_30d": 963,
  "rank_365d": 984,
  "rank_90d": 978,
  "raw_hash": "e570da2df9a8dc7d",
  "recommended_dependencies": [],
  "revision": 0,
  "ruby_source_path": "Formula/r/rustls-ffi.rb",
  "tap": "homebrew/core",
  "test_dependencies": [],
  "uses_from_macos": [],
  "version_head": "HEAD",
  "version_stable": "0.15.3",
  "versioned_formulae": [],
  "why_use_this": "Use this as a drop-in replacement for OpenSSL\u0027s TLS functionality when you need memory safety guarantees and modern cryptography without the C complexity. Rustls eliminates entire classes of buffer-overflow and use-after-free bugs. It\u0027s particularly valuable in polyglot codebases where you want Rust\u0027s safety properties accessible from legacy C/C++ or scripting languages."
}