BIP32: Derive child keys from Bitcoin extended keys

Understand the project

Practical overview

Use it when a Bitcoin application needs BIP32-compatible hierarchical key derivation and can supply a compatible elliptic-curve implementation.

Developers building Bitcoin wallet applications or wallet components.
JavaScript and TypeScript developers who need to derive child nodes from extended keys.

Before you choose

The public repository specifies an MIT license.

The library requires a compatible elliptic-curve implementation; its example uses tiny-secp256k1.
The repository documents TypeScript and Node.js examples.
The example covers importing a Base58 extended key and deriving a child by path.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Use BIP32 to import an extended key and derive a child key along a path.

A JavaScript or TypeScript project using bip32.
A tiny-secp256k1-compatible elliptic-curve implementation, such as tiny-secp256k1.
A Base58-encoded extended key and a derivation path.

Import BIP32Factory from bip32 and provide the compatible elliptic-curve implementation to create the BIP32 instance.
Import the extended key with bip32.fromBase58(...).
Call node.derivePath(...) with the desired derivation path to obtain a child node.

A BIP32 child node derived from the imported extended key and specified path.

The library requires a tiny-secp256k1-compatible implementation to be wrapped by BIP32Factory.
The example demonstrates deriving a child node; it does not document further wallet operations.

Evidence and transparency

Source record details

Source availability: Active
Sources checked: 14 October 2026
Original website title: bitcoinjs/bip32 · Official homepage title · retained in its source language