CryptNP

Utility to rail and derail (encrypt or decrypt) confidential data and also set the time limitation if you want to.

Install :

npm install cryptnp

Usage :

Create an instance of cryptnp. Pass a secret key into the constructor. Use .rail(data, expiresAt?) to rail your data and .derail(railed_data) to derail the railed data.

	const CryptNp = require('cryptnp')
	
	/*
	=> Creating an instance
	
	"deepestsecret" or anything you
	can think of is a secret key
	used to rail or derail your data.
	*/
	const cnp = new CryptNp("deepestsecret")
	
	/*
	=> .rail(data, expiresAt?)
	
	data : data can be object, string, integer or anything.
	expiresAt : It is an optional. If you leave it blank then your
	railed data will never expire. Expiry time limit should
	be set in minutes value.
	*/
	
	const railed = cnp.rail({msg: "Hello world!"}, 20) // 20 = 20 minutes
	
	/*
	=> .derailed(railed)

	railed: railed data
	*/
	const derailed = cnp.derail(railed)
	
	console.log(railed)
	console.log(derailed) // this will return undefined after 20minutes since it is generated

Note: Do not use cryptnp to hash passwords.

Use cases :

1. User verification.
2. E2E encrypted program.