Doug Tygar
Doug Tygar
acoustic background easy escape keyboard message noise study type typing
The message from this study is that there is no easy escape from this acoustic snooping. The type of keyboard you use doesn't matter, your typing proficiency doesn't matter, and the background noise can be overcome.
keyboard
The keyboard is a little like a conga drum.
relying
We probably don't want to be relying on passwords as we do.
aware documents forms helps including protect smart solution sure text
There are different forms of authentication that could be used, including smart cards, one-time password tokens or biometrics. That helps with passwords, but it doesn't help protect text documents we would want to keep classified. I'm not sure what the solution is, but it's important that we're aware of this vulnerability.
algorithm arbitrary recover ten typed worth
Once our algorithm has ten minutes' worth of typed English, it can recover arbitrary text, such as passwords.
easy hard people
I don't think it's very hard for people to put this together, but I don't want to make it easy for people, either.
accurate algorithm background became computer definitely estimate eventually given good harder noise recover rounds several smaller text
Background noise definitely made it harder to recover accurate text, but the differences became smaller after several rounds of feedback. Given enough tries, the computer algorithm will eventually come up with a pretty good estimate of the text that was typed.
among computer figure flags form honorable intentions less likely people privacy raise red security spying
It's a form of acoustical spying that should raise red flags among computer security and privacy experts. If we were able to figure this out, it's likely that people with less honorable intentions can or have as well.
challenge industry kinds music strong
I think the music industry will have a strong challenge working in these kinds of environments.