Flask Bcrypt vs Argon2: Which is Better for Password Hashing?

What are the main differences between Flask Bcrypt and Argon2 for password hashing?

Flask Bcrypt is a wrapper around the bcrypt hashing algorithm, while Argon2 is a newer algorithm designed to be more secure and resistant to attacks. Argon2 also allows for more customization in terms of memory usage and processing time.

Which one is more secure for storing user passwords?

Argon2 is generally considered more secure due to its resistance to GPU-based attacks and its ability to adjust parameters for memory and time, making it harder to crack.

Are there any performance differences between the two?

Yes, Argon2 can be slower than Bcrypt, especially if configured for high memory usage. However, the performance can be adjusted based on your application's needs.

Should I switch from Bcrypt to Argon2 for my existing application?

If security is a top priority and you can manage the transition, switching to Argon2 is advisable. Just ensure to handle the migration of existing hashed passwords carefully.