Security Basics mailing list archives

Re: Length vs Complexity


From: Roger <rnodal () gmail com>
Date: Thu, 16 Sep 2010 15:17:31 -0400

Assuming the brute force starts with letters first for example. A
password with mostly letters will be found faster than one better
mixed. (Assuming length is the same).
Here is the analysis that I did to arrive at that conclusion: (Please
feel free to correct me)


AB12#$  => POSSIBLE CHARACTERS CHOICES

AAB2 vs AA2$
====================
AAAA
AAAB
AAA1
AAA2
AAA#
AAA$
AABA
AABB
AAB1
AAB2    => HERE AFTER 10 TRIES.
AAB#
AAB$
AA1A
AA1B
AA12
AA1#
AA1$
AA2A
AA2B
AA21
AA22
AA2#
AA2$    => HERE AFTER 23 TRIES.
AA#A
AA#B
AA#1
AA#2
AA##
AA#$
AA$A
AA$B
AA$1
AA$2
AA$#
AA$$


-r

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