Sams Teach Yourself Adobe® AIR™ Programming in 24 Hours

Hour 18 Encryption and Security in AIR

In this hour, you’ll learn

    • Storing Encrypted Data

    • Signing Your AIR Code

    • Timestamping Your AIR Code

    • Signing with a Digital Certificate

Storing Encrypted Data

As you witnessed in the previous hour, storing local data to the end user’s file system is an easy yet powerful feature of the AIR runtime. But what if this is a shared PC that other employees use? Do you want other users to be able to swipe your AIR application passwords? Figure 18.1 shows why this could be a security issue. A default local shared object can be read, stored in an external text file, and the contents read in clear text.

Figure 18.1 An AIR unencrypted local shared object’s contents.