DecSoft Support - AES256 Encryption And Decryption

AES256 Encryption And Decryption

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Mark Stow

Hi David, do you have an Samples of using aes256 to encrypt and decrypt data? I have found this Cordova-AES256 Encryption And Decryption (https://github.com/Ideas2IT/cordova-aes256), but i cant seem to make it work. Thank you for your time

DecSoft

Hello Mark,

Various things to consider here: maybe the first one is that I am not an expert in encryption/decryption. Maybe we can try to use the Cordova plugin that you mentioned, however, what about to use a JavaScript library like CryptoJS?

You can try it by downloading the latest release from here: https://github.com/brix/crypto-js/releases. Once download, look for a "crypto-js.js" file, which is what you must include in the app using the Files manager. Once you do that, the below code can be run and apparently works like a charm:


// Encrypt
var ciphertext = CryptoJS.AES.encrypt('my message', 'secret key 123').toString();

// Decrypt
var bytes  = CryptoJS.AES.decrypt(ciphertext, 'secret key 123');
var originalText = bytes.toString(CryptoJS.enc.Utf8);

window.alert(originalText); // 'my message'

Maybe it's enough to use the referred library? On the other hand, what is the purpose of the encryption / decryption? For example, thinking to send some data over HTTP, the best is probably to use HTTPS instead, so we no need to encrypt / decrypt.

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