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Hi
On Friday 14 November 2014 at 3:01:59 PM, in
, Philip Jackson wrote:
> Does
> he have to pause between each iteration to see if he
> has 'something good' ?
Could, presumably, stop after "several" iterations to check the last
"several" result
On 14-11-2014 16:01, Philip Jackson wrote:
> Does anything prevent the key breaker getting lucky and cracking it first try?
No. It's just extremely unlikely.
> It seems to me that all discussions on key breaking with their very large
> numbers always assume that the last try is THE ONE.
Nu, usu
Thanks for that (and the previous) It makes the brain hurt but
raises a few questions in my mind.
The real purpose of a Fermi estimate isn't to give you solid answers:
it's to give you an appreciation of the problem. If it does that, it's
done its job.
(Also, a listmember named Ineiev poin
On 14/11/14 03:36, Robert J. Hansen wrote:
> Whoops!
>> so 10**30 years. The universe is about 10 billion years old, or
>> 10**13 years, so ... our brute-force key cracker takes 10**17 times
>> longer than the age of the universe in order to brute-force a 128-bit
>> key.
>
> 10 billion is 10**10,
On Fri, Nov 14, 2014 at 10:25 AM, Johan Wevers wrote:
> On 14-11-2014 3:15, Robert J. Hansen wrote:
>
>> 10**38 attempts at 10**6 bitflips per attempt equals 10**44 bitflips
>> total. At carpet-scuffing power, that's about 10**15 joules of energy,
> [...]
>> But to make our brute-forcer 10**30 ti
On 14-11-2014 3:15, Robert J. Hansen wrote:
> 10**38 attempts at 10**6 bitflips per attempt equals 10**44 bitflips
> total. At carpet-scuffing power, that's about 10**15 joules of energy,
[...]
> But to make our brute-forcer 10**30 times faster (so it
> can run in one year), our brute-forcer also
Whoops!
> so 10**30 years. The universe is about 10 billion years old, or
> 10**13 years, so ... our brute-force key cracker takes 10**17 times
> longer than the age of the universe in order to brute-force a 128-bit
> key.
10 billion is 10**10, so it takes 10**20 times the age of the universe.
Bu
A while ago Hauke asked if the statement in the FAQ about a brute-forcer
leaving the Earth uninhabitable was correct. I said it was, but I
didn't break out the math. Now that I have a few minutes to breathe,
here's the full answer. It's a Fermi estimate, which means it's not
going to be perfectl
