Unlock optimal security for your applications with our bcrypt and Argon2i Work Factor Calculator. Easily determine the ideal cost factor to ensure robust password hashing, balancing computational load with protection against brute-force attacks. Get accurate recommendations for secure user authentication.
Formula:
The bcrypt cost factor (or 'work factor') determines the computational difficulty of hashing a password. Each increment in the cost factor roughly doubles the time required to compute a hash. Our calculator uses the following principle:
New Cost Factor ≈ Benchmark Cost Factor + log₂ (Desired Time / Benchmark Time)
- Desired Time: Your target time for a single hash (in milliseconds).
- Benchmark Time: Observed time for a single hash using a known cost (in milliseconds).
- Benchmark Cost Factor: The bcrypt cost factor (log₂ iterations) used during your benchmark.