How to encrypt a mysql Database password?

Question

In my web application I need to encrypt the database password and and that should be stored in the properties file?

Comments

I missed that the question was tagged as Java, in java also you can generate MD5 or SHA1. Following two links should help.
http://stackoverflow.com/questions/16323701/hash-a-password-with-sha1-in-java

Algo is same as previous.
http://stackoverflow.com/questions/415953/generate-md5-hash-in-java

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sha1 or md5 are complex algo but if you are trying something for the experiment then you can just replace a character "a" with "a+5", "b" with "b+5". If you want the standard algo the above link should be very handy and should work without any issue.

Answer 1

Passwords are stored in the form of single pass so that even the admin can not know the password. Check http://in2.php.net/sha1 (assuming you are using the PHP for the web-application) for generating the sha1 for the passwd.

I am providing the high level steps to store and login using the passwd.
1. Whenever user register you get the uname and passwd.
2. You store the uname and sha1(passwd) in the db.
3. whenever user login he/she will provide the uname and passwd, you check the sha1(passwd) with the stored one for the enetered user if both are same then you proceed else not.

Please let us know if you have any further query.