• RSS
  • Twitter
  • FaceBook

Security Forums

Log in

FAQ | Search | Usergroups | Profile | Register | RSS | Posting Guidelines | Recent Posts

unknown encryption / cipher

Users browsing this topic:0 Security Fans, 0 Stealth Security Fans
Registered Security Fans: None
Post new topic   Reply to topic   Printer-friendly version    Networking/Security Forums Index -> Cryptographic Theory and Cryptanalysis - Internal and Transmission Security

View previous topic :: View next topic  
Author Message
gloomers
Just Arrived
Just Arrived


Joined: 31 Mar 2010
Posts: 0


Offline

PostPosted: Wed Mar 31, 2010 9:19 pm    Post subject: unknown encryption / cipher Reply with quote

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:
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   

Post new topic   Reply to topic   Printer-friendly version    Networking/Security Forums Index -> Cryptographic Theory and Cryptanalysis - Internal and Transmission Security All times are GMT + 2 Hours
Page 1 of 1


 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Community Area

Log in | Register