The issue with balancing privacy and surveillance is that the wireless carriers are not interested in privacy, he said. "They've been providing wiretapping for 100 years. Apple may in the next year protect voice calls," he said, and said that the best hope for ending widespread government surveillance will be the makers of mobile operating systems like Apple and Google.
Not all upcoming security innovation will be focused on that kind of privacy protection. Security researcher Brandon Wiley showed off at Defcon a protocol he calls Dust that can obfuscate different kinds of network traffic, with the end goal of preventing censorship.
"I only make products about letting you say what you want to say anywhere in the world," such as content critical of governments, he said. Encryption can hide the specifics of the traffic, but some governments have figured out that they can simply block all encrypted traffic, he said. The Dust protocol would change that, he said, making it hard to tell the difference between encrypted and unencrypted traffic.
It's hard to build encryption into pre-existing products, Wiley said. "I think people are going to make easy-to-use, encrypted apps, and that's going to be the future."
