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ethereum-private-key-to-public-key

Version:

Convert an Ethereum private key to a public key

github.com/miguelmota/ethereum-private-key-to-public-key

miguelmota/ethereum-private-key-to-public-key

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# ethereum-private-key-to-public-key > Convert an Ethereum private key to a public key [![License](http://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/miguelmota/ethereum-private-key-to-public-key/master/LICENSE) [![NPM version](https://badge.fury.io/js/ethereum-private-key-to-public-key.svg)](http://badge.fury.io/js/ethereum-private-key-to-public-key) ## Demo [https://lab.miguelmota.com/ethereum-private-key-to-public-key](https://lab.miguelmota.com/ethereum-private-key-to-public-key) ## Install ```bash npm install ethereum-private-key-to-public-key ``` ## Getting started ```javascript const privateKeyToPublicKey = require('ethereum-private-key-to-public-key') console.log(privateKeyToPublicKey(Buffer.from('4f3edf983ac636a65a842ce7c78d9aa706d3b113bce9c46f30d7d21715b23b1d', 'hex')).toString('hex')) // '04e68acfc0253a10620dff706b0a1b1f1f5833ea3beb3bde2250d5f271f3563606672ebc45e0b7ea2e816ecb70ca03137b1c9476eec63d4632e990020b7b6fba39' console.log(privateKeyToPublicKey('4f3edf983ac636a65a842ce7c78d9aa706d3b113bce9c46f30d7d21715b23b1d').toString('hex')) // '04e68acfc0253a10620dff706b0a1b1f1f5833ea3beb3bde2250d5f271f3563606672ebc45e0b7ea2e816ecb70ca03137b1c9476eec63d4632e990020b7b6fba39' console.log(privateKeyToPublicKey('0x4f3edf983ac636a65a842ce7c78d9aa706d3b113bce9c46f30d7d21715b23b1d').toString('hex')) // '04e68acfc0253a10620dff706b0a1b1f1f5833ea3beb3bde2250d5f271f3563606672ebc45e0b7ea2e816ecb70ca03137b1c9476eec63d4632e990020b7b6fba39' ``` ## CLI Install: ```bash npm install -g ethereum-private-key-to-public-key ``` Convert private key to public key: ```bash $ ethereum_private_key_to_public_key 4f3edf983ac636a65a842ce7c78d9aa706d3b113bce9c46f30d7d21715b23b1d 04e68acfc0253a10620dff706b0a1b1f1f5833ea3beb3bde2250d5f271f3563606672ebc45e0b7ea2e816ecb70ca03137b1c9476eec63d4632e990020b7b6fba39 ``` Piping private key example: ```bash $ echo 4f3edf983ac636a65a842ce7c78d9aa706d3b113bce9c46f30d7d21715b23b1d | ethereum_private_key_to_public_key 04e68acfc0253a10620dff706b0a1b1f1f5833ea3beb3bde2250d5f271f3563606672ebc45e0b7ea2e816ecb70ca03137b1c9476eec63d4632e990020b7b6fba39 ``` ## Test ```bash npm test ``` ## License [MIT](LICENSE)