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Best way to use PHP to encrypt and decrypt passwords?
I've been doing a lot with PHP recently and want to make my first login/registration system. As such I've been doing a lot of reading online to figure out the best method(s) for doing this. I've come across a couple of guides and I'm confused on a few instances and I'd like to be sure before I start down this road.
My question is how exactly do I use blowfish? I've read that crypt() will auto select blowfish if an appropriate salt is provided. If that is the case, What makes a salt blowfish appropriate?
Right now, I have a script that makes a salt out of the date and time, a random number, then hash that for the salt. Is that something I can use with blowfish or not?
Take a look at http://php.net/manual/en/function.crypt.php
If you scroll down about 1/3, you should see the heading: Example #3 Using crypt() with different hash types. Hopefully this will help! and your salt should be fine!