A node crypto wrap for AES GCM
npm install node-crypto-gcmnode-crypto-gcm
===============
A node crypto wrap for AES GCM (Galois/Counter Mode),
to make it easy to use AES GCM mode.
The default crypto algorithm is aes-128-gcm. PBKDF2 digest algorithm is sha512, PBKDF2 rounds is 10000.
The output text is URL safe base64 encoding, so it can be safely used in URL without URL encoding.
npm install node-crypto-gcm
const GCM = require('node-crypto-gcm').GCM;
let plainText = 'To be or not to be, that is the question.';
let gcm = new GCM('password');
let output = gcm.encrypt(plainText);
let decryptedText = gcm.decrypt(output); // decryptedText should equals plainText
The crypto algorithm can be customized in constructor.
let gcm = new GCM('t86GvATWQV6S', {algorithm: 'aes-256-gcm',
saltLenght: 123,
pbkdf2Rounds: 1000,
pbkdf2Digest: 'sha512'});
Checkout test/gcm_test.js for example usages.
class GCM {
/**
* @param password {string} password string, will use PBKDF2 to drive encryption key.
* @param options {object} optional algorithm parameters.
* specific this parameter to custom your own encryption algorithm.
* {algorithm:
* saltLength:
* pbkdf2Rounds:
* pbkdf2Digest:
*/
constructor(password, options)
/**
* Encrypt plainText.
*
* The output raw buffer format:
*
*
*
* it will be url safe base64 encoded as function return value.
*
* @param plainText utf-8 encoded plain text.
* @returns {string} url safe base64 encoded encrypted text.
*/
encrypt(plainText)
/**
* decrypt encyptedData.
*
* @param encryptedData {string} encrypted data, url safe base64 encoded.
@returns {} decrypted data, utf-8 encoded. or null if decrypt failed.
*/
decrypt(encryptedData)
}
MIT