Messages in this thread | | | Date | Wed, 23 Jul 2003 03:50:22 -0700 | From | "David S. Miller" <> | Subject | Re: 2.4.22-pre7: are security issues solved? |
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On Wed, 23 Jul 2003 20:47:53 +1000 Herbert Xu <herbert@gondor.apana.org.au> wrote:
> On Wed, Jul 23, 2003 at 03:35:05AM -0700, David S. Miller wrote: > > If I know your password is 7 characters I have a smaller > > space of passwords to search to just brute-force it. > > It's much smaller if you didn't know that it was at most 7 characters > long. However, if you did know the upper bound, or you were just > brute forcing all passwords starting from 1 character, then the > difference is relatively minor. This is because > > n + n^2 + n^3 + n^4 + n^5 + n^6 > > is much smaller than n^7 where n is something like 62 for a reasonable > password.
"7" in my example is an arbitrary number, increase it to any larger number you like. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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