Password encryption


 
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Top Forums UNIX for Dummies Questions & Answers Password encryption
# 1  
Old 04-01-2014
Password encryption

if I change my password on two different servers, using the same string but the encrypted password in /etc/passwd look different.

If I copy an entry from one /etc/password to the other server. I can still log in to both servers using the same password. Only now both /etc/passwd entries are identical.

How is this possible?
# 2  
Old 04-01-2014
It's the way encryption works to protect passwords, Here is one link to some info:
docstore.mik.ua/orelly/other/puis3rd/0596003234_puis3-chp-4-sect-3.html
# 3  
Old 04-02-2014
They don't want people to be able to compare hashes like that. Otherwise, if an attacker got to the hashes, they could compare it to a list of known hashes -- which would speed up password bruteforcing tremendously.

In short, they mutate (salt) it a little to prevent people from doing exactly what you tried to do just now. Smilie
 
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