browserify-sign

What is browserify-sign?

The browserify-sign package is a part of the crypto-browserify project, which aims to emulate Node.js's crypto module for use in the browser. It specifically implements the sign and verify functionality for RSA and ECDSA, which are cryptographic algorithms used for digital signatures.

What are browserify-sign's main functionalities?

Signing data

This feature allows you to create digital signatures using RSA or ECDSA. The code sample demonstrates how to sign some data using an RSA private key.

const createSign = require('browserify-sign').createSign;
const sign = createSign('RSA-SHA256');
sign.update('some data to sign');
const privateKey = '...'; // Your RSA private key
const signature = sign.sign(privateKey, 'base64');

Verifying signatures

This feature enables you to verify digital signatures to ensure data integrity and authenticity. The code sample shows how to verify a signature using an RSA public key.

const createVerify = require('browserify-sign').createVerify;
const verify = createVerify('RSA-SHA256');
verify.update('some data to sign');
const publicKey = '...'; // Your RSA public key
const signature = '...'; // The signature to verify
const isValid = verify.verify(publicKey, signature, 'base64');

Other packages similar to browserify-sign

elliptic

Elliptic is a package that provides implementations of elliptic curve cryptography. It can be used for signing and verifying data, similar to browserify-sign, but it focuses more on elliptic curve algorithms and includes additional functionality such as key generation and encryption/decryption.

crypto-browserify

Crypto-browserify is a project that aims to replicate the Node.js crypto module in the browser. It includes browserify-sign as a part of its suite, but it also offers a wider range of cryptographic functions such as hashing, cipher, decipher, and more.

node-forge

Node-forge is a JavaScript implementation of various networking and cryptography tools. It is similar to browserify-sign in that it provides digital signature functionality, but it also includes a wide array of cryptographic operations like encryption, decryption, certificate handling, and more.

README

browserify-sign

a package to duplicate the functionality of node's crypto public key functions, much of this is based on Fedor Indutny's work on tls.js.

done

• basic rsa signing and verifying with the right api

todo

• tests to make sure we actually did it
• chinese remainder theorom?
• eliptical curve signing
• publicEncrypt and privateDecrypt? (out of scope)
• other key encodings (non rss format public keys)
• dsa keys?
• keys with passwords