# @libp2p/crypto

> Crypto primitives for libp2p

Latest version **5.1.23** (published 2026-08-23) · Apache-2.0 OR MIT license · 0 weekly downloads

## Install

```sh
npm install @libp2p/crypto
pnpm add @libp2p/crypto
yarn add @libp2p/crypto
bun add @libp2p/crypto
```

## Health

**Score 75/100 (B)** — status: active.

Positive: has types; esm support; no vulnerabilities; has provenance; recently updated; high maintenance score; high quality score.

Warnings: low downloads.

## Facts

| | |
|---|---|
| Version | 5.1.23 |
| Published | 2026-08-23 |
| First published | 2022-01-04 |
| Weekly downloads | 0 |
| License | Apache-2.0 OR MIT |
| TypeScript types | bundled |
| Module format | ESM |
| Dependencies | 7 |
| Unpacked size | 1.1 MB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Provenance | attested (GitHub Actions) |
| GitHub stars | 2580 |
| Maintainers | daviddias, alanshaw, achingbrain, vascosantos, npm-service-account-libp2p, jacobheun |
| Keywords | IPFS, crypto, libp2p, rsa, secp256k1 |

## Links

- npm: https://www.npmjs.com/package/@libp2p/crypto
- Repository: https://github.com/libp2p/js-libp2p
- Homepage: https://github.com/libp2p/js-libp2p/tree/main/packages/crypto#readme
- Issues: https://github.com/libp2p/js-libp2p/issues
- npm.io page: https://npm.io/package/@libp2p/crypto

## Dependencies (7)

- [uint8arrays](https://npm.io/package/uint8arrays.md) ^6.1.1
- [multiformats](https://npm.io/package/multiformats.md) ^14.0.0
- [@noble/curves](https://npm.io/package/@noble/curves.md) ^2.0.1
- [@noble/hashes](https://npm.io/package/@noble/hashes.md) ^2.0.1
- [uint8arraylist](https://npm.io/package/uint8arraylist.md) ^3.0.2
- [protons-runtime](https://npm.io/package/protons-runtime.md) ^7.0.0
- [@libp2p/interface](https://npm.io/package/@libp2p/interface.md) ^3.3.0

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## Recent versions

- 5.1.23 (latest) — 2026-08-23
- 5.1.23-5cb617ae2 (next) — 2026-09-02
- 5.1.23-185d901cd — 2026-09-02
- 5.1.23-cef4d32cf — 2026-08-31
- 5.1.23-ac7305ccf — 2026-08-31
- 5.1.23-87dca02b0 — 2026-08-27
- 5.1.23-4a6c5d11a — 2026-08-27
- 5.1.22-947d304ed — 2026-08-22
- 5.1.22-0967e75f5 — 2026-08-22
- 5.1.22-4dae661b4 — 2026-08-22
- 5.1.22-8786aa8d0 — 2026-08-20
- 5.1.22-55d7a539a — 2026-08-20
- 5.1.22-d5534174d — 2026-08-13
- 5.1.22-47cf9cdc1 — 2026-08-10
- 5.1.22 — 2026-07-30
- … 887 more at https://npm.io/package/@libp2p/crypto/versions

## README

# @libp2p/crypto

[![libp2p.io](https://img.shields.io/badge/project-libp2p-yellow.svg?style=flat-square)](http://libp2p.io/)
[![Discuss](https://img.shields.io/discourse/https/discuss.libp2p.io/posts.svg?style=flat-square)](https://discuss.libp2p.io)
[![codecov](https://img.shields.io/codecov/c/github/libp2p/js-libp2p.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p)
[![CI](https://img.shields.io/github/actions/workflow/status/libp2p/js-libp2p/main.yml?branch=main\&style=flat-square)](https://github.com/libp2p/js-libp2p/actions/workflows/main.yml?query=branch%3Amain)

> Crypto primitives for libp2p

# About

<!--

!IMPORTANT!

Everything in this README between "# About" and "# Install" is automatically
generated and will be overwritten the next time the doc generator is run.

To make changes to this section, please update the @packageDocumentation section
of src/index.js or src/index.ts

To experiment with formatting, please run "npm run docs" from the root of this
repo and examine the changes made.

-->

The `libp2p-crypto` library depends on the [Web Crypto API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Crypto_API) in the browser. Web Crypto is available in all modern browsers, however browsers restrict its usage to [Secure Contexts](https://developer.mozilla.org/en-US/docs/Web/Security/Secure_Contexts).

This means you will not be able to use some `@libp2p/crypto` functions in the browser when the page is served over HTTP.\*

To enable the Web Crypto API and allow `@libp2p/crypto` to work fully, please serve your page over HTTPS.

# Install

```console
$ npm i @libp2p/crypto
```

## Browser `<script>` tag

Loading this module through a script tag will make its exports available as `Libp2pCrypto` in the global namespace.

```html
<script src="https://unpkg.com/@libp2p/crypto/dist/index.min.js"></script>
```

# API Docs

- <https://libp2p.github.io/js-libp2p/modules/_libp2p_crypto.html>

# License

Licensed under either of

- Apache 2.0, ([LICENSE-APACHE](https://github.com/libp2p/js-libp2p/blob/main/packages/crypto/LICENSE-APACHE) / <http://www.apache.org/licenses/LICENSE-2.0>)
- MIT ([LICENSE-MIT](https://github.com/libp2p/js-libp2p/blob/main/packages/crypto/LICENSE-MIT) / <http://opensource.org/licenses/MIT>)

# Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

---
_Source: https://npm.io/package/@libp2p/crypto · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._