PBKDF2 Key Derivation
Derive cryptographic keys from passwords
This free online pbkdf2 key derivation runs in your browser and is part of our Cryptography collection.
🔐 PBKDF2 Key Derivation
Derive cryptographic keys from passwords using PBKDF2 (Password-Based Key Derivation Function 2)
Recommended: 100,000+ for password hashing
About PBKDF2:
- Purpose: Transform passwords into cryptographic keys
- Iterations: Higher iteration counts increase security but take longer to compute
- Salt: Random salt prevents rainbow table attacks (must be unique per password)
- Key Length: 256 bits (32 bytes) is suitable for most encryption algorithms
- Use Cases: Password storage, encryption key generation, secure authentication
- Security: Store the salt with the derived key; both are needed for verification
⚠️ Important:
- For production password storage, use bcrypt or Argon2 instead
- Always use a unique, random salt for each password
- Store the salt alongside the derived key for verification
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