browserify-aes

What is browserify-aes?

The browserify-aes package is a JavaScript implementation of the AES (Advanced Encryption Standard) cryptographic algorithm. It is designed to be compatible with the crypto module in Node.js, making it useful for browser environments where the crypto module is not natively available. This package allows for encryption and decryption of data using AES, supporting various modes of operation and key sizes.

What are browserify-aes's main functionalities?

Encryption

This feature allows you to encrypt data using AES. The code sample demonstrates how to create a cipher instance, encrypt some text, and output the encrypted data in hex format.

const crypto = require('browserify-aes');
const cipher = crypto.createCipher('aes-256-cbc', 'password');
let encrypted = cipher.update('some clear text data', 'utf8', 'hex');
encrypted += cipher.final('hex');
console.log(encrypted);

Decryption

This feature enables you to decrypt data that was previously encrypted with AES. The code sample shows how to create a decipher instance, decrypt some encrypted data, and output the original text.

const crypto = require('browserify-aes');
const decipher = crypto.createDecipher('aes-256-cbc', 'password');
let decrypted = decipher.update(encrypted, 'hex', 'utf8');
decrypted += decipher.final('utf8');
console.log(decrypted);

Other packages similar to browserify-aes

crypto-js

Crypto-js is a package that provides cryptographic functionalities including AES encryption. It offers a broader range of cryptographic algorithms compared to browserify-aes, making it more versatile for different security requirements.

node-forge

Node-forge is a JavaScript implementation of various networking and cryptography protocols. It includes support for AES encryption among many other cryptographic operations. Compared to browserify-aes, node-forge offers a more comprehensive suite of cryptographic tools, including certificate management and SSL/TLS support.

README

browserify-aes

Node style aes for use in the browser. Implements:

• createCipher
• createCipheriv
• createDecipher
• createDecipheriv
• getCiphers

In node.js, the crypto implementation is used, in browsers it falls back to a pure JavaScript implementation.

Much of this library has been taken from the aes implementation in triplesec, a partial derivation of crypto-js.

EVP_BytesToKey is a straight up port of the same function from OpenSSL as there is literally no documenation on it beyond it using 'undocumented extensions' for longer keys.