unknown encryption / cipher

Networking/Security Forums -> Cryptographic Theory and Cryptanalysis - Internal and Transmission Security

Author: gloomers PostPosted: Wed Mar 31, 2010 9:19 pm    Post subject: unknown encryption / cipher
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Hello,

I hope i hit the right forum, sorry if i didn't (-;

Anyways, i am looking for help on finding out password encryption algorithm.
I am playing with one closed system and i feel that password sub-system is quite weak.

The tests show that:
a) encrypted passwords can be decrypted, so this is not one-way hash like md5/sh1/etc;
b) it has some sort of random number inside that makes different encrypted strings for the same password each time you generate it;
c) all password letters can be split by pairs;
d) there is length(string)+1 pair in the encrypted string..
e).. which leads us to think that one of pairs might be that random number, which then helps to decode all leters;

Some generated passwords:

a => qmrq
aa => kjhfhi
aaaa => jjifiiihik
aaaaa => kdhhhkhjhmhl

aaaaaa => ihjdjgjfjijhjk
aaaaaa => rqqmqlqoqnqqqp
aaaaaa => sqpmplpopnpqpp
aaaaaa => jmiqipisirfefd
aaaaaa => egfkfjfmflfofn

aaaaaaaa => jnirfefdfgfffifhfk
aaaaaaaaa => jdihikijimilioiniqip

a => sdph
b => kihf
c => sppn
d => fneo
e => sdpe
f => jdid
g => kihk
h => sdpq
i => sspg
j => mpng
k => rdqr
l => mrnk
m => spph
n => knhe
o => lkoq
p => gkef
q => ldnh
r => ssql

I am not very good at cryptography or programming, so if you got skillz - feel free to test them (-; Thanks in advance!
Quote:



Networking/Security Forums -> Cryptographic Theory and Cryptanalysis - Internal and Transmission Security


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