iPhone Development: Strong Encryption for Cocoa / Cocoa TouchSunday, February 15, 2009 Strong Encryption for Cocoa / Cocoa Touch AES is a strong encryption standard that has mostly replaced the aging DES standard. AES is widely used and fairly secure encryption mechanism (but I am not an expert at cryptography by any stretch of the imagination; I'm trusting experts for that opinion). AES supports three different key sizes, 128, 192, and 256 (the larger the
