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password encryption in Tomcat

domestique jackson
Greenhorn

Joined: Aug 29, 2002
Posts: 10
The default Tomcat password storage file stores passwords in unencrypted, plain text.
Could the experienced ranchers suggest "how to" encrypt and store encrypted passwords. And how to "hide" the encryption key?
Any links to solutions would be helpfut too.
thanks,
/dj.
Hartmut Ludwig
Ranch Hand

Joined: Aug 31, 2002
Posts: 51
A possible solution would be to encrypt the Password using MD5 and saving the MD5 hash instead. This method is also used by UNIX/Linux to encrypt the passwords of users.
There is no need to decrypt them (so you don't need keys and stuff). The method is: if a user wants to login the passwort it enters is encrypted with MD5 as well and both encrypted versions are compared. If it fits - everything is ok. That's an easy method and quite resistant against brute force, if you choose a good password.
I use this MD5 implementation written by Santeri Paavolainen.
sl
Hartmut
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: password encryption in Tomcat
 
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