CryptoJS

I was not able to figure out how to use the built-in Web Crypto API or Node’s Crypto to do symmetric encryption. So, using the older library CryptoJS

Just two simple functions:

export function encryptText(text) {
    return CryptoJS.AES.encrypt(text, KEY).toString();
}

export function decryptText(text) {
    return CryptoJS.AES.decrypt(text, KEY).toString(CryptoJS.enc.Utf8);
}

Source:

• https://www.npmjs.com/package/crypto-js
• https://nodejs.org/api/crypto.html
• https://developer.mozilla.org/en-US/docs/Web/API/Web_Crypto_API