# browser-crypto

> Node.js crypto module subset for browser

Latest version **2.1.0** (published 2023-09-24) · MIT license · 0 weekly downloads

## Install

```sh
npm install browser-crypto
pnpm add browser-crypto
yarn add browser-crypto
bun add browser-crypto
```

## Health

**Score 25/100 (F)** — status: abandoned.

Positive: no vulnerabilities.

Warnings: low downloads; no types; no esm support.

Negative: abandoned.

## Facts

| | |
|---|---|
| Version | 2.1.0 |
| Published | 2023-09-24 |
| First published | 2019-03-13 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | none |
| Module format | CommonJS |
| Dependencies | 0 |
| Unpacked size | 829.1 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 11 |
| Maintainers | ravshansbox |
| Keywords | aes, browser, buffer, cipher, crypto, ecdh, pbkdf2 |

## Links

- npm: https://www.npmjs.com/package/browser-crypto
- Repository: https://github.com/ravshansbox/browser-crypto
- Homepage: https://github.com/ravshansbox/browser-crypto#readme
- Issues: https://github.com/ravshansbox/browser-crypto/issues
- npm.io page: https://npm.io/package/browser-crypto

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## Recent versions

- 2.1.0 (latest) — 2023-09-24
- 2.0.2 — 2023-03-13
- 2.0.1 — 2023-03-13
- 2.0.0 — 2022-12-04
- 1.4.0 — 2021-03-15
- 1.3.0 — 2021-03-15
- 1.2.0 — 2021-03-15
- 1.1.2 — 2020-10-12
- 1.1.1 — 2020-10-12
- 1.1.0 — 2020-10-12
- 1.0.1 — 2019-08-05
- 1.0.0 — 2019-04-22
- 0.4.1 — 2019-04-09
- 0.4.0 — 2019-04-09
- 0.3.4 — 2019-03-17
- … 12 more at https://npm.io/package/browser-crypto/versions

## README

# Node.js 'crypto' module subset for browser

Package contents:

- Buffer
- getCiphers()
- createECDH()
- createCipher() (deprecated, use createCipheriv() instead)
- createCipheriv()
- createDecipher() (deprecated, use createDecipheriv() instead)
- createDecipheriv()
- pbkdf2
- pbkdf2Sync

Usage example:

```
const {
  Buffer,
  createECDH,
  createCipheriv,
  createDecipheriv,
  pbkdf2,
  pbkdf2Sync,
} = window.browserCrypto;
// import {
//   Buffer,
//   createECDH,
//   createCipheriv,
//   createDecipheriv,
//   pbkdf2,
//   pbkdf2Sync,
// } from 'browser-crypto';

const ecdh1 = createECDH('secp256k1');
const ecdh2 = createECDH('secp256k1');

const publicKey1 = ecdh1.generateKeys();
const publicKey2 = ecdh2.generateKeys();

const secret1 = ecdh1.computeSecret(publicKey2);
const secret2 = ecdh2.computeSecret(publicKey1);

const iv = Buffer.alloc(16);
const data = Buffer.from('abcdef');

const cipher = createCipheriv('aes256', secret1, iv);
const encrypted = Buffer.concat([cipher.update(data), cipher.final()]);

const decipher = createDecipheriv('aes256', secret2, iv);
const decrypted = Buffer.concat([decipher.update(encrypted), decipher.final()]);
console.log(decrypted.toString());

pbkdf2('password', 'salt', 1, 32, 'sha512', (error, derivedKey) => {
  if (error) throw error;
  console.log(derivedKey);
});

const derivedKey = pbkdf2Sync('password', 'salt', 1, 32, 'sha512');
console.log(derivedKey);

```

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