PBKDF2 Key Derivation Online
Generate cryptographic keys using Password-Based Key Derivation Function 2 (PBKDF2). Securely derive keys from passwords with customizable parameters.
Derived key will appear here...Enter parameters and click "Derive Key"
About PBKDF2 Key Derivation
What is PBKDF2?
PBKDF2 (Password-Based Key Derivation Function 2) is a cryptographic algorithm designed to derive secure keys from passwords. It applies a pseudorandom function (like HMAC) along with a salt and repeated iterations to produce cryptographic keys.
Security Features
- • Salt prevents rainbow table attacks
- • Iteration count slows down brute-force attempts
- • Configurable key length for different security requirements
- • Supports multiple cryptographic hash functions
Common Applications
- • Password storage and verification
- • Encryption key generation
- • Secure token generation
- • Cryptographic key derivation
- • Multi-factor authentication systems
Best Practices
- • Use at least 100,000 iterations (more for sensitive data)
- • Always use a cryptographically random salt
- • Prefer SHA-256 or SHA-512 over SHA-1
- • Store salt separately from derived keys
- • Use key lengths of 64+ bytes for high-security applications
Technical Details
PBKDF2 is defined in RFC 8018 and is widely adopted in security standards. The algorithm works by applying a pseudorandom function (typically HMAC) to the input password and salt, then repeatedly re-hashing the result many times to produce the final output.
This implementation uses the Web Crypto API for all cryptographic operations, ensuring keys are derived entirely in your browser without server interaction. Your passwords and sensitive data never leave your device.