Node.js Crypto
The Node.js Crypto module is a powerful tool that provides cryptographic functionalities. It offers a set of wrappers for OpenSSL’s features, including hash, HMAC, cipher, decipher, sign, and verify functions. With it, you can implement secure data handling in your applications.
Introduction to Applied AI:–Click Here
What is Hash?
A hash is a fixed-length string of bits generated procedurally and deterministically from an arbitrary block of input data. Regardless of the input size, the output remains consistent in length. Hashing is widely used for data integrity and password security.
What is HMAC?
HMAC stands for Hash-based Message Authentication Code. It combines a cryptographic hash function with a secret key, ensuring both data integrity and authenticity. The result is a unique hash that cannot be recreated without the original key.
Data Science Tutorial:-Click Here
Encryption Example using Hash and HMAC
File: crypto_example1.js
const crypto = require('crypto');
const secret = 'abcdefg';
const hash = crypto.createHmac('sha256', secret)
.update('Welcome to UpdateGadh')
.digest('hex');
console.log(hash);
Run the code in the Node.js command prompt:
Download New Real Time Projects :-Click here
node crypto_example1.js
Output: Node.js crypto example 1
Encryption Example using Cipher
File: crypto_example2.js
const crypto = require('crypto');
const cipher = crypto.createCipher('aes192', 'a password');
let encrypted = cipher.update('Hello UpdateGadh', 'utf8', 'hex');
encrypted += cipher.final('hex');
console.log(encrypted);
Run the code in the Node.js command prompt:
node crypto_example2.js
Output: Node.js crypto example 2
Machine Learning Tutorial:–Click Here
Decryption Example using Decipher
File: crypto_example3.js
const crypto = require('crypto');
const decipher = crypto.createDecipher('aes192', 'a password');
const encrypted = '4ce3b761d58398aed30d5af898a0656a3174d9c7d7502e781e83cf6b9fb836d5';
let decrypted = decipher.update(encrypted, 'hex', 'utf8');
decrypted += decipher.final('utf8');
console.log(decrypted);
Run the code in the Node.js command prompt:
node crypto_example3.js
Output: Node.js crypto example 3
Complete Advance AI topics:- CLICK HERE
Deep Learning Tutorial:– Click Here
Complete Python Course with Advance topics:-Click Here
SQL Tutorial :–Click Here
npm crypto crypto-js node js crypto example node:crypto randombytes @types/crypto-js node crypto createhash crypto-js download crypto hash nodejs node js crypto tutorial types/crypto-js nodejs cryptojs, nodes crypto, nodejs crypto random values example, node.js crypto integration, nodejs crypto random value generator example, node js crypto hash, node js crypto example, node js crypto tutorial, node js crypto hash string, nodejs, crypto, crypto payment gateway integration for react & nodejs, cryptojs, nodejs data encryption, nodejs data decryption, crypto digest, crypto module, crypto api, nodejs symmetric encryption, cryptocurrency in node.js, nodejs tutorial, php vs nodejs
