# @otplib/plugin-crypto-node

> Node.js crypto module adapter for otplib

Latest version **13.5.0** (published 2026-08-21) · MIT license · 0 weekly downloads

## Install

```sh
npm install @otplib/plugin-crypto-node
pnpm add @otplib/plugin-crypto-node
yarn add @otplib/plugin-crypto-node
bun add @otplib/plugin-crypto-node
```

## 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 | 13.5.0 |
| Published | 2026-08-21 |
| First published | 2026-01-10 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | bundled |
| Module format | ESM + CommonJS |
| Dependencies | 1 |
| Unpacked size | 22.9 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Provenance | attested (GitHub Actions) |
| GitHub stars | 2292 |
| Author | Gerald Yeo |
| Maintainers | geraldyeo |
| Keywords | otp, crypto, nodejs, hmac, plugin |

## Links

- npm: https://www.npmjs.com/package/@otplib/plugin-crypto-node
- Repository: https://github.com/yeojz/otplib
- Homepage: https://otplib.yeojz.dev
- Issues: https://github.com/yeojz/otplib/issues
- npm.io page: https://npm.io/package/@otplib/plugin-crypto-node

## Dependencies (1)

- [@otplib/core](https://npm.io/package/@otplib/core.md) 13.5.0

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## Recent versions

- 13.5.0 (latest) — 2026-08-21
- 13.4.1 — 2026-05-30
- 13.4.0 — 2026-03-19
- 13.3.0 — 2026-02-12
- 13.2.1 — 2026-01-26
- 13.2.0 — 2026-01-25
- 13.1.1 — 2026-01-14
- 13.1.0 — 2026-01-12
- 13.0.2 — 2026-01-11
- 13.0.1 — 2026-01-10
- 13.0.0 — 2026-01-10

## README

# @otplib/plugin-crypto-node

Node.js crypto plugin for otplib using the built-in `crypto` module.

## Installation

```bash
npm install @otplib/plugin-crypto-node
pnpm add @otplib/plugin-crypto-node
yarn add @otplib/plugin-crypto-node
```

## Overview

This plugin provides HMAC and random byte generation using Node.js's built-in `crypto` module. It supports all hash algorithms available in Node.js:

- `sha1`
- `sha256`
- `sha512`

## Usage

### Basic Usage

```typescript
import { generateSecret, generate } from "otplib";
import { crypto } from "@otplib/plugin-crypto-node";
import { base32 } from "@otplib/plugin-base32-scure";

// Generate a secret
const secret = generateSecret({ crypto, base32 });

// Generate a token
const token = await generate({
  secret,
  crypto,
  base32,
});
```

### With Custom Algorithm

```typescript
import { generate } from "otplib";
import { crypto } from "@otplib/plugin-crypto-node";
import { base32 } from "@otplib/plugin-base32-scure";

const token = await generate({
  secret: "GEZDGNBVGY3TQOJQGEZDGNBVGY",
  algorithm: "sha256",
  crypto,
  base32,
});
```

### Synchronous HMAC

The Node.js crypto plugin supports both synchronous and asynchronous HMAC operations:

```typescript
import { crypto } from "@otplib/plugin-crypto-node";

// Sync HMAC (faster, but blocks event loop)
const digest = crypto.hmacSync("sha1", key, data);

// Async HMAC (doesn't block event loop)
const digest = await crypto.hmac("sha1", key, data);
```

## When to Use

Use this plugin when:

- Running in Node.js environment
- Need maximum performance
- Want to use Node.js built-in crypto (no external dependencies)
- Need synchronous HMAC operations

## Platform Support

- Node.js (all versions)
- Not available in browsers (use `@otplib/plugin-crypto-web` instead)
- Not available in edge runtimes (use `@otplib/plugin-crypto-web` instead)

## Documentation

Full documentation available at [otplib.yeojz.dev](https://otplib.yeojz.dev):

- [Getting Started Guide](https://otplib.yeojz.dev/guide/getting-started)
- [API Reference](https://otplib.yeojz.dev/api/)

## License

[MIT](./LICENSE)

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