I\'m currently coding my own CMS and I\'m at the state of password...
I want to know if I can md5 a password then sha1 it after?
Li
You can do this, but there's no real benefit to it. If you're running your passwords through md5(), you'll get a bit more security from adding a cryptographic salt.
What is SALT and how do I use it? has more info on that.
The other bit of advice you may hear a lot is to not use MD5. SHA1 is comparatively stronger, and you only need to change your password field in your database to accept a 40 character string.