I’m creating an app in which the security is a critical matter. What concerns the incoming and outcoming TCP/IP connections I decided to use simply the HTTPS protocol. What about the data to be stored on the phone I thought to use some encryption like AES256 or something similiar. I wanna to ask. Should I also encrypt the data when I’m working with it in the program (handling variables) ? Which is the most secure way to write secure code ? Are there some ready Encryption libraries in the IOS or it’s better to use mine ?
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The iOS SDK includes the CommonCrypto library which you can use for AES encryption, though you should probably read this first: Why Isn’t My Encryption.. Encrypting?