4 ms·
That article doesn’t talk about GPU decryption at all, which is many multitudes faster, and also it’s only talking about finding a specific AES key. It may be p
by CGamesPlay 5y ago
That article doesn’t talk about GPU decryption at all, which is many multitudes faster, and also it’s only talking about finding a specific AES key. It may be possible to search for multiple keys in parallel in the future, which could cut this figure down by the corresponding amount (if the goal is just to find some keys, and not specific ones).
- bnegreve 5y agoYes, they can be a hundred times faster so now it's only 273,378,930,384,066,111,944,300,099,749,229,403,236,110,674,297,569,624,874,932 years. More seriously, GPUs are faster because they are highly parallel, and parallelism can only give you a speedup that is linear with the number of processing units. So unless you're planning to build a GPU with trillions units, that won't help much.
- klyrs 5y agoA farm of a billion GPUs, each with a thousand cores sounds quite feasible with today's tech and gets you to trillion-times speedup of brute force. So, feel free to divide by 10^12... still not tractable.
- gregmac 5y agoHave you tried to buy a GPU lately?
- klyrs 5y agoI was in the market for a single GPU about 6 months ago, it shipped in a week and didn't break the bank. Buying a billion GPUs is an entirely different question. I'd look into buying fab equipment and doing a custom architecture. Given the length of the computation we're talking about, even a decade of lead time wouldn't significant. But as I understand it, current lead times are still less than a year.