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TPDP Episode #24: Mobile Application Security

I’m pleased to announce that the latest episode of The Polyglot Developer Podcast titled, Mobile Application Security, has been published to iTunes, Pocket Casts, and every other major podcasting network that consumes the feed!

In this episode, which is the 24th episode of the show, I’m joined by first time guest, Rob Lauer, and returning guest TJ VanToll. Both of these guests work for Progress, which is the company behind NativeScript, and you’ll remember that episode 5 was strictly around getting to know what NativeScript has to offer. The focus of this episode isn’t around NativeScript, but around the security of your mobile applications. Just like with web applications, security is important with mobile, even if it isn’t talked about as much.

In this episode you’ll learn about protecting your application source code from reverse engineering, protecting your users data at rest, and securely transferring your data between remote web services.

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Encrypt And Decrypt Data In Node.js With The Crypto Library

As you’ve probably noticed from the previous few articles, I’ve been doing a lot of development around cryptocurrency wallets using Node.js. Up until now, I’ve only been writing about interacting with different currencies. However, I haven’t discussed how to safely store your wallet information.

When it comes to storing anything sensitive, whether it be cryptocurrency secrets or something else, you must do so safely and securely. For example, the data must be encrypted at rest and decrypted when used.

We’re going to see how to encrypt data with a passphrase using Node.js and decrypt it using that same passphrase when necessary.

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Build A Password Manager For Android And iOS Using Ionic 2

Have you ever wanted to build your own password manager? Maybe you don’t trust the password management tools that already exist, or maybe you just want the experience. I personally use the tool 1Password, but many of my friends don’t trust the applications that exist on the market. It is a valid concern that they have. What if the password managers that exist are using an ancient or obsolete DES specification or similar, rather than the modern AES? What if the master passwords are not being hashed with a strong Bcrypt algorithm?

Not too long ago we created a password manager using the NativeScript framework, but what if we wanted to build one with a different technology.

We’re going to see how to build a password manager that makes use of the AES specification using Ionic 2 and Angular. This application will work for both Android and iOS and look great on both.

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Implement AES Strength Encryption With JavaScript

I recently started playing around with the Dropbox Datastore JavaScript API and decided that I wanted an extra layer of security in the data I store on the Dropbox server. I figured the best way to accomplish this would be to encrypt all data in my application before syncing.

It took me a while to find an encryption library that I liked, but in the end, I chose the JavaScript library Forge. This library has plenty of cryptography tools that extend beyond just AES encryption, thus making it very worthy to check out.

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