How do I choose a cost factor for Bcrypt?

What is the cost factor in Bcrypt?

The cost factor in Bcrypt determines the computational complexity of the hashing process, affecting security and performance.

How do I decide what cost factor to use?

You should consider the balance between security and performance. A higher cost factor increases security but requires more processing power.

What is a recommended starting cost factor?

A common starting point is 10, but you should test it based on your application's performance requirements.

Can I change the cost factor later?

Yes, you can change the cost factor, but you'll need to rehash existing passwords with the new factor.