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passwords decrypting

 
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Fraud
Op


Joined: 19 May 2008
Posts: 101

PostPosted: Mon Jan 09, 2012 10:11 am    Post subject: passwords decrypting Reply with quote

Hello. Is there any way to decrypt the passes from the eggdrops user file?
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arfer
Master


Joined: 26 Nov 2004
Posts: 436
Location: Manchester, UK

PostPosted: Mon Jan 09, 2012 11:48 am    Post subject: Reply with quote

You would need to know the encryption algorithm and key.

I don't doubt somebody knows, but you can safely assume they will not be telling us.
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nml375
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Joined: 04 Aug 2006
Posts: 2857

PostPosted: Mon Jan 09, 2012 4:20 pm    Post subject: Reply with quote

Actually, the password is encrypted using the loaded encryption module (blowfish by default).

As for the blowfish-module, it uses a one-way encryption.
The one-way encryption is achieved by using the password itself as the key (generating the cipher-stream), to encrypt a fixed salt.
Reverse-engineering the key for the cipher-stream would be virtually impossible given the small size of the final hash (~768 bits).
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