Troubles encountered while implementing crypto-js in Parse Cloud Code for an iOS mobile app

Question

Troubles encountered while implementing crypto-js in Parse Cloud Code for an iOS mobile app

For my iOS app, I have implemented Parse as the backend and want to ensure the data transmitted between Parse and the device is encrypted. To achieve this, I have turned to Parse Cloud Code for server-side encryption and decryption of all data exchanges.

While Parse offers a 'crypto' module by default, I couldn't locate any documentation for it. Hence, I decided to use crypto-js and incorporated the necessary files for AES encryption and decryption into the Parse Cloud Code /cloud directory.

The challenge arises when I receive the output from crypto-js's AES functions, as I'm uncertain about the type of object being returned. It appears to be an NSDictionary object, although I expected either an NSString or NSData. This discrepancy has left me puzzled on how to proceed further.

If possible, kindly advise on any additional details required or point out any potential misconceptions I might have. Your assistance will be greatly appreciated.

javascript objective-c encryption aes parse-platform

Answer 1

Answer №1

To ensure secure communication on the server side, I implemented encryption and decryption in my cloud code that resembles nodeJS scripting:

var crypto = require('crypto');
var algorithm = "aes-128-cbc"; //select preferred algorithm from http://nodejs.org/api/crypto.html
var password = "securePassphrase";
var cipher = crypto.createCipher(algorithm,password);
var decipher = crypto.createDecipher(algorithm,password);
exports.customEncryption = {
    encrypt:function(data){
        var encryptedData = cipher.update(data,'utf8','hex')
        encryptedData += cipher.final('hex');
        return encryptedData;
    },
    decrypt: function(encryptedData){
        var decryptedData = decipher.update(encryptedData,'hex','utf8')
        decryptedData += decipher.final('utf8');
        return decryptedData;
    }
};

If you save this script as "cloud/encryption.js", you can utilize the encryption tool within your cloud code as follows:

var data = "encryptThis";

var encryptionTool = require("cloud/encryption.js").customEncryption;
var encryptedResult = encryptionTool.encrypt(data);
var decryptedResult = encryptionTool.decrypt(encryptedResult);

if (decryptedResult == data){
     //Input matches the decrypted data
}

Answer 2

To ensure secure communication on the server side, I implemented encryption and decryption in my cloud code that resembles nodeJS scripting:

var crypto = require('crypto');
var algorithm = "aes-128-cbc"; //select preferred algorithm from http://nodejs.org/api/crypto.html
var password = "securePassphrase";
var cipher = crypto.createCipher(algorithm,password);
var decipher = crypto.createDecipher(algorithm,password);
exports.customEncryption = {
    encrypt:function(data){
        var encryptedData = cipher.update(data,'utf8','hex')
        encryptedData += cipher.final('hex');
        return encryptedData;
    },
    decrypt: function(encryptedData){
        var decryptedData = decipher.update(encryptedData,'hex','utf8')
        decryptedData += decipher.final('utf8');
        return decryptedData;
    }
};

If you save this script as "cloud/encryption.js", you can utilize the encryption tool within your cloud code as follows:

var data = "encryptThis";

var encryptionTool = require("cloud/encryption.js").customEncryption;
var encryptedResult = encryptionTool.encrypt(data);
var decryptedResult = encryptionTool.decrypt(encryptedResult);

if (decryptedResult == data){
     //Input matches the decrypted data
}

Answer 3

Answer №2

All data transmitted through Parse is encrypted using SSL, which provides sufficient security for communications.

While it may be tempting to encrypt data stored on the server, it is important to have a strong understanding of cryptographic security before attempting to do so.

It is crucial that plain or encrypted passwords are never stored; instead, store a properly salted and hashed version of the password to enhance security.

If your data is highly valuable, consider consulting a security expert to design a comprehensive security plan. Achieving strong security measures can be challenging, and even one mistake can render all efforts ineffective.

Answer 4

All data transmitted through Parse is encrypted using SSL, which provides sufficient security for communications.

While it may be tempting to encrypt data stored on the server, it is important to have a strong understanding of cryptographic security before attempting to do so.

It is crucial that plain or encrypted passwords are never stored; instead, store a properly salted and hashed version of the password to enhance security.

If your data is highly valuable, consider consulting a security expert to design a comprehensive security plan. Achieving strong security measures can be challenging, and even one mistake can render all efforts ineffective.

Troubles encountered while implementing crypto-js in Parse Cloud Code for an iOS mobile app

Answer №1

Answer №2

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