# @stricahq/bip32ed25519

> Pure javascript implementation of Bip32Ed25519, used for Cardano blockchain key pair.

Latest version **1.1.2** (published 2025-07-17) · Apache-2.0 license · 0 weekly downloads

## Install

```sh
npm install @stricahq/bip32ed25519
pnpm add @stricahq/bip32ed25519
yarn add @stricahq/bip32ed25519
bun add @stricahq/bip32ed25519
```

## Health

**Score 35/100 (D)** — status: maintenance-mode.

Positive: has types; no vulnerabilities; high quality score.

Warnings: low downloads; no esm support.

Negative: stale; low maintenance score.

## Facts

| | |
|---|---|
| Version | 1.1.2 |
| Published | 2025-07-17 |
| First published | 2021-11-24 |
| Weekly downloads | 0 |
| License | Apache-2.0 |
| TypeScript types | bundled |
| Module format | CommonJS |
| Dependencies | 6 |
| Unpacked size | 322.9 KB |
| Known vulnerabilities | 0 (+1 in 1 direct dependencies) |
| Install scripts | no |
| GitHub stars | 18 |
| Author | Strica |
| Maintainers | ashisherc |
| Keywords | bip32ed25519, strica, cardano |

## Links

- npm: https://www.npmjs.com/package/@stricahq/bip32ed25519
- Repository: https://github.com/StricaHQ/bip32Ed25519
- Homepage: https://github.com/StricaHQ/bip32Ed25519#readme
- Issues: https://github.com/StricaHQ/bip32Ed25519/issues
- npm.io page: https://npm.io/package/@stricahq/bip32ed25519

## Dependencies (6)

- [bn.js](https://npm.io/package/bn.js.md) ^5.2.0
- [buffer](https://npm.io/package/buffer.md) ^6.0.3
- [pbkdf2](https://npm.io/package/pbkdf2.md) ^3.1.2
- [blakejs](https://npm.io/package/blakejs.md) ^1.1.1
- [hash.js](https://npm.io/package/hash.js.md) ^1.1.7
- [elliptic](https://npm.io/package/elliptic.md) 6.6.1

## Recent versions

- 1.1.2 (latest) — 2025-07-17
- 1.1.1 — 2025-01-20
- 1.1.0 — 2024-07-08
- 1.0.4 — 2022-04-14
- 1.0.3 — 2021-11-24
- 1.0.2 — 2021-11-24
- 1.0.1 — 2021-11-24

## README

<p align="center">
  <a href="https://strica.io/" target="_blank">
    <img src="https://docs.strica.io/images/logo.png" width="200">
  </a>
</p>

# Bip32Ed25519

Pure javascript implementation of [Bip32Ed25519](https://ieeexplore.ieee.org/document/7966967), used for Cardano blockchain key pair.

- Create extended keys with Bip39 mnemonic entropy
- Soft and hard derivation
- Derive keys with user friendly API
- Sign and verify data

## Installation

### yarn/npm

```sh
yarn add @stricahq/bip32ed25519
```

### Browser

```html
<script src="[use jsDelivr or Unpkg]"></script>

// access bip32ed25519 global variable
```

## Usage Example

```js
import { Bip32PrivateKey } from "@stricahq/bip32ed25519";

... // Bip39 entropy from mnemonics
const rootKey = await Bip32PrivateKey.fromEntropy(entropy);
...

// hardened derivation
const accountKey = rootKey
      .derive(2147483648 + 1852) // purpose
      .derive(2147483648 + 1815) // coin type
      .derive(2147483648 + 0); // account index

const spendingKey = accountKey
      .derive(0) // chain
      .derive(0) // payment key index
      .toPrivateKey();

const pubKey = spendingKey
      .toPublicKey()
      .toBytes();
```
Checkout tests and API doc for more details

## API Doc
Find the API documentation [here](https://docs.strica.io/lib/bip32ed25519)

## Used by
[Typhon Wallet](https://typhonwallet.io)

# License
Copyright 2021 Strica

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

---
_Source: https://npm.io/package/@stricahq/bip32ed25519 · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._