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crypto

property

Provides cryptographic functionality including hashing, HMAC, encryption, and random bytes generation.

Syntax

const crypto = require('crypto')

Example

javascript

const crypto = require('crypto');

// Hash a password (use bcrypt in production)
const hash = crypto.createHash('sha256').update('password').digest('hex');

// Secure random token
const token = crypto.randomBytes(32).toString('hex');

// HMAC signature
const hmac = crypto.createHmac('sha256', 'secret-key')
                   .update('data')
                   .digest('hex');

// UUID-like random ID
const id = crypto.randomUUID(); // built-in since Node 14.17

EventEmitter