Author: UnruhUnruh
Date: Jun 9, 2008 17:31
>In
>Message-ID:<674c424fc5cc97e11629850c8d4e0859@ pseudo.borked.net>,
>big@brother.us wrote:
>>So how long will it take to break a PGP or True Crypt file?
> There are faster ways to factor than trying to divide by all
>lower numbers (up to its sqrt), but let's look at this brute force
>method.
Much much much faster.
> This computer can perform about 1e12 calculations per second.
>Let's say that dividing huge numbers requires only one calculation
>(which is unlikely).
> Then to factor a 1024-bit number will require (on average)
>2**510 operations. My calculations show that 2**510/10**12
>seconds is somewhat over 10**134 years. I'm not worried.
> To break a symmetric cypher with a 256-bit key will take (on
>average) 2**128 operations. That'll take only 10**19 years. I'm
>still not worried.
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