encrypt-uint8array

Encrypt and decrypt an Uint8Array using another Uint8Array as password

Highlights

• Simple to use, hard to misuse
• Does not reinvent the wheel (based on themis)
• Written in TypeScript (you get autocomplete suggestions in your IDE!)

Install

$ npm install encrypt-uint8array

Usage

const {
	encryptUint8Array,
	decryptUint8Array,
	encodeString, // For convenience, but can be done with native TextEncoder
	decodeString  // For convenience, but can be done with native TextDecoder
} = require('encrypt-uint8array');

(async () => {
	const secret = encodeString('This is the secret');
	const password = encodeString('P4s$w0Rd!');
	const encrypted = await encryptUint8Array(secret, password);
	console.log(encrypted);
	//=> Uint8Array [ 0, 1, 1, 65, /* ... */, 103, 26 ]
	const decrypted = await decryptUint8Array(encrypted, password);
	console.log(decrypted);
	//=> Uint8Array [ 84, 104, 105, 115, /* ... */, 101, 116 ]
	console.log(decodeString(decrypted));
	//=> 'This is the secret'

	await decryptUint8Array(encrypted, encodeString('wrong password'));
	//=> DecryptionError: Unable to decrypt - password is incorrect or data is corrupted.
})();

API

encryptUint8Array(data, password)

Async function that encrypts data with password. Returns a new Uint8Array.

data

Type: Uint8Array

The data to be encrypted.

password

Type: Uint8Array

The Uint8Array to be used as password.

decryptUint8Array(encryptedData, password)

Async function that decrypts encryptedData with password. Returns a new Uint8Array.

If encryptedData is not valid or the password is incorrect, this function will throw a DecryptionError.

encryptedData

Type: Uint8Array

The data to be decrypted.

password

Type: Uint8Array

The Uint8Array to be used as password.

License

MIT © Pedro Augusto de Paula Barbosa