If this were a movie, we’d be laughing at the improbability of the premise — that encryption can be cracked by listening to the high-pitched sounds produced by a computer’s CPU as it decrypts data. But it’s real, and although it can be done at a distance of 4 meters with a parabolic microphone, the researchers (Daniel Genkin, Eran Tromer, and Adi Shamir, who is the S of the RSA cryptosystem) also showed that it could be done with a smartphone sitting next to a laptop. Upping the ante, they suggest that a microphone hidden inside a colocated server could eavesdrop on numerous nearby servers. In short, if security is paramount, both heavy-duty encryption and physical protection are necessary. follow link
Just Show Me the Pictures!
Do you ever find that you don't have time to read those long email missives from Aunt Carol, but really do want to see the photos that she has lovingly attached? In Apple Mail, click the Quick Look button located in the message header. You'll get an easily browsed view of just the attached photos, and you can even add them to iPhoto, if you like!
- ExtraBITS for 6 January 2014 (06 Jan 14)
Encryption Cracked by Listening to a Computer’s CPU