"Computer scientists say they’ve discovered a “severe vulnerability” in the world’s most widely used software encryption package that allows them to retrieve a machine’s secret cryptographic key."
It looks genuine enough but a few more details always helps ;)
It looks like a variation of the late 1990's Differential Power Analysis attack on smart cards.
Basically it's a form of time realted side channel attack.
When software branches etc it takes fractionaly different time periods or can trigger a cache reload etc all of which shows up on the power supply lines in one form or another.
You just have to dig your wanted signal out of all the other system noise. The simplest way to do this is to run the same thing over and over again and use a known trigger point to average out the unwanted noise and average up the wanted signal (in theory unsynchronised noise goes down in proportion to the square root of the number of samples you average so 6dB improvment for every doubling of the number of samples).
It is not just on the power supply lines you can see this.
I think it was Peter Guttman who showed a network packet time stamp attack on an AES key across the network due to cache hits.
If you remove "brain dead" software implementations. The two biggies that let security down are,
1, Side Channels.
2, Protocol Errors.
SSL has been hit by both of late and as has been pointed out by many SSL/TSL and related protocols are the foundation of Internet security and have been for neigh on 20years...
One can probably make the assumption that the likes of the NSA / GCHG et al have been aware of this for the last ten years or so at the very least.
And of course their life is made so much easier by "standard plaintext" in file headers such as MS Office documents etc.
Oh and then there is a new kid on the block for researchers to get their heads around which is "RF Fault Injection Attacks".
If you add the three types of attack together then this fault could be easily excersisable from outside the server room and seen on the network...