encrypt node.js code example
Example 1: nodejs encrypt text with key
const crypto = require('crypto');
const algorithm = 'aes-256-ctr';
const secretKey = 'vOVH6sdmpNWjRRIqCc7rdxs01lwHzfr3';
const iv = crypto.randomBytes(16);
const encrypt = (text) => {
const cipher = crypto.createCipheriv(algorithm, secretKey, iv);
const encrypted = Buffer.concat([cipher.update(text), cipher.final()]);
return {
iv: iv.toString('hex'),
content: encrypted.toString('hex')
};
};
const decrypt = (hash) => {
const decipher = crypto.createDecipheriv(algorithm, secretKey, Buffer.from(hash.iv, 'hex'));
const decrpyted = Buffer.concat([decipher.update(Buffer.from(hash.content, 'hex')), decipher.final()]);
return decrpyted.toString();
};
module.exports = {
encrypt,
decrypt
};
Example 2: encrypt and decrypt in nodejs
const Cryptr = require('cryptr');const cryptr = new Cryptr('myTotalySecretKey'); const encryptedString = cryptr.encrypt('bacon');const decryptedString = cryptr.decrypt(encryptedString); console.log(encryptedString);