public-encrypt

What is public-encrypt?

The public-encrypt npm package provides functionality for asymmetric encryption and decryption using public and private keys. It allows users to encrypt data with a public key that can only be decrypted with the corresponding private key, and vice versa.

What are public-encrypt's main functionalities?

Public Key Encryption

This feature allows you to encrypt data using a public key. The encrypted data can only be decrypted by someone with the corresponding private key.

const { publicEncrypt } = require('public-encrypt');
const { publicKey, privateKey } = require('crypto').generateKeyPairSync('rsa', { modulusLength: 2048 });
const encryptedData = publicEncrypt(publicKey, Buffer.from('Hello, World!'));
console.log(encryptedData);

Private Key Decryption

This feature allows you to decrypt data using a private key that corresponds to the public key used for encryption.

const { privateDecrypt } = require('public-encrypt');
const { publicKey, privateKey } = require('crypto').generateKeyPairSync('rsa', { modulusLength: 2048 });
const encryptedData = publicEncrypt(publicKey, Buffer.from('Hello, World!'));
const decryptedData = privateDecrypt(privateKey, encryptedData);
console.log(decryptedData.toString());

Other packages similar to public-encrypt

node-rsa

node-rsa is a package that provides similar functionality for RSA encryption and decryption. It offers a more object-oriented approach compared to public-encrypt and includes additional features such as signing and verifying.

forge

forge is a comprehensive library that includes not only public key encryption but also other cryptographic operations. It is more extensive than public-encrypt, providing a full set of tools for encryption, hashing, and TLS.

crypto-browserify

crypto-browserify is designed to emulate the Node.js crypto module for use in the browser. It includes functionality for public and private key encryption and decryption, similar to public-encrypt, but is tailored for browser environments.

README

publicEncrypt

publicEncrypt/privateDecrypt for browserify

Blog post about the moving parts that have gone into this.