Monthly Archive: February 2012

(View on gamamb.tumblr.com, source: facebook.com)

How secure are 128-bit keys? Imagine a computer that …

How secure are 128-bit keys? Imagine a computer that is the size of a grain of sand that can test keys against some encrypted data. Also imagine that it can test a key in the amount of time it takes light to cross it. Then consider a cluster of these computers, so many that if you covered the earth with them, they would cover the whole planet to the height of 1 meter. The cluster of computers would crack a 128-bit key on average in 1,000 years. Burt Kaliski, via John Callas (View on gamamb.tumblr.com)