Jon,

Here's what we found:

test sequence     should be           is
aa                   0xFBFF              0xFBFF
aaaa                0xFBFFF9F3        0xFBFFF9F4
aaaaa               0xFBFFF9F3ED    0xFBFFF9F4FB
ab                   0xFB01              0xFB01
abb                 0xFB01FA           0xFB01FA
abbb                0xFB01FAF4        0xFB01FAF5
abbbb              0xFB01FAF4EE     0xFB01FAF5FC


A through z results in 0xFB01FBF7FF1A2704040904FF08222F0C0C11


All letters are converted to lowercase first and no special characters
are accepted .

steve



On Sep 14, 2007, at 10:44 AM, Jon Haworth wrote:

Having done some testing...

one way of interpreting your example is that it's starting
with an offset of 0x04 for the second character, then
reducing that offset by an additional 0x06 for each
subsequent character.

This breaks very quickly, so I doubt it's right - however, if the offset is indeed generated by an algorithm it may possible to deduce it from some more
examples.

Tim's suggestion of checking whether passwords are encrypted identically for different usernames is a very good one and if that is the case with this system
then it's going to be a bit of a pain to get this sorted out.

Cheers
Jon


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