A. The rate of Keys per second on both are way low, and B, you don't have to test every combination, Certain combinations will tell you that whole chunks of possibilities are not possible.
In truth most of the time you can narrow the potentials to 1% of the total possible to determine a range for the right answer pretty quickly.
Granted if it was as slow as 77 Billion years .7 billion years is still a long time. But no, these numbers are orders of orders of magnitude wrong.
Comments
Here is a better article.
http://www.eetimes.com/document.asp?doc_id=1279619
But they are both still wrong.
A. The rate of Keys per second on both are way low, and B, you don't have to test every combination, Certain combinations will tell you that whole chunks of possibilities are not possible.
In truth most of the time you can narrow the potentials to 1% of the total possible to determine a range for the right answer pretty quickly.
Granted if it was as slow as 77 Billion years .7 billion years is still a long time. But no, these numbers are orders of orders of magnitude wrong.