Is cryptography supported in Node.js? What is crypto in Node.js? How do you cipher the secured information in Node.js?

Yes, Node.js does support cryptography through a module called Crypto. This module provides various cryptographic functionalities like cipher, decipher, sign and verify functions, a set of wrappers for open SSL’s hash HMAC etc. For example:

Syntax:
1
2
3
4
const crypto = require'crypto');
const secret = 'akerude';
const hash = crypto.createHmac('swaEdu', secret).update('Welcome to Edureka').digest('hex');
console.log(hash);

The crypto module in Node.js provides cryptographic functionality that includes a set of wrappers for OpenSSL's hash, HMAC, cipher, decipher, sign and verify functions.

Image for post

 

Comments

Post a Comment

Popular posts from this blog

Which node logger did you use in your project?

Following are the common logger modules: 1) logger SUMMARY A simple logging library that combines the simple APIs of Ruby's logger.rb and browser-js console.log() USAGE A logger has 5 different levels of logging in a specific order: 'fatal', 'error', 'warn', 'info', 'debug' Each of these log levels has its own method on the logging instance. You can set the maximum log level on a logger at runtime. By default, a logger writes to STDOUT, but given a writeable file path, it will log directly to a file. Instantiation: // node/common.js style var logger = require('./logger').createLogger(); // logs to STDOUT var logger = require('./logger').createLogger('development.log'); // logs to a file 2)  simple-node-logger A simple multi-level logger for console, file, and rolling file appenders. Features include: levels: trace, debug, info, warn, error and fatal levels (plus all and off) flexible ap...
Read more

What are clusters and worker threads, and when would you use them?

Worker threads are for when you want to run long-running synchronous tasks, and you don't want to block the event loop. It runs the code in a separate thread, and can communicate the results back to the main thread. Cluster workers are separate instances of your Node process, which are primarily used for load balancing incoming requests across multiple processes, to take advantage of multi-core processors.
Read more