// A node demo program for creating the ECDH
// Importing the crypto module
const crypto = require('crypto');
// Initializing the algorithm
const algorithm = 'aes-256-cbc';
// Defining and initializing the password
const password = '123456789'
// Initializing the key
const key = crypto.randomBytes(32);
// Initializing the iv vector
const iv = crypto.randomBytes(16);
// Encrypt function to encrypt the data
function encrypt(text) {
// Creating the cipher with the above defined parameters
let cipher =
crypto.createCipheriv('aes-256-cbc', Buffer.from(key), iv);
// Updating the encrypted text...
let encrypted = cipher.update(text);
// Using concatenation
encrypted = Buffer.concat([encrypted, cipher.final()]);
// Returning the iv vector along with the encrypted data
return { iv: iv.toString('hex'),
encryptedData: encrypted.toString('hex') };
}
//Decrypt function for decrypting the data
function decrypt(text) {
let iv = Buffer.from(text.iv, 'hex');
let encryptedText =
Buffer.from(text.encryptedData, 'hex');
// Creating the decipher from algo, key and iv
let decipher = crypto.createDecipheriv(
'aes-256-cbc', Buffer.from(key), iv);
// Updating decrypted text
let decrypted = decipher.update(encryptedText);
decrypted = Buffer.concat([decrypted, decipher.final()]);
// returning response data after decryption
return decrypted.toString();
}
// Encrypting the below data and printing output
var output = encrypt("Welcome to TutorialsPoint !");
console.log("Encrypted data -- ", output);
//Printing decrypted data
console.log("Decrypted data -- ", decrypt(output));
About Online Node Compiler
Try our Online Node Compiler (Version Node v6.11.2) to Edit, Run, and Share your Node Code directly from your browser. This online development environment provides you the latest version Node v6.11.2.
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Shortcut | Description |
Ctrl + Enter | Run the program |
Ctrl + S | Save Project |
Shift + Ctrl + S | Save As Project |
Ctrl + G | Share Project |
Ctrl + Z | Undo Editing |
Ctrl + Y | Redo Editing |
Ctrl + A | Select All Text |
Ctrl + X | Cut Selected Text |
Ctrl + C | Copy Selected Text |
Ctrl + V | Paste Copied Text |
Ctrl + F | Search Text |
Ctrl + H | Replace Text |
Online Node Compiler: Save and Share Node Code (Project)
Save Node Project Online
You can save your Node Project with us so that you can access this project later on. To save a project you will need to create a login Id with us. So before you save a project, please create a login Id using a link given at the top right corner of this page.
Share Node Project Online
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More Features of Online Node Compiler
- Theme – You can change the current editor's theme from the "Editor Theme" option under "Settings" menu.
- Font Size – You can change the font size of the editor /compiler from from the "Font Size" option under "Settings" menu.
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- Show/Hide Line Numbers – You can show/hide the line number with the code from the "Show Line Numbers" or "Hide Line Numbers" option under "Settings" Menu.
- And, many more.
Benefits of Using Online Node Compiler
There are several benefits of using the Online Node Compiler to run your Node code:
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