PBKDF2 Hash Generator

Password-Based Key Derivation Function 2 (PBKDF2) is a key derivation function with a sliding computational cost, used to reduce vulnerability to brute-force attacks.

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What is PBKDF2?

PBKDF2 (Password-Based Key Derivation Function 2) is a key derivation function that is part of RSA Laboratories' Public-Key Cryptography Standards (PKCS) series, specifically PKCS #5 v2.0. It is designed to be computationally expensive to produce a hash, which makes brute-force attacks much more difficult.

Key Parameters

  • Salt: A sequence of random bits added to the input data. It ensures that the same password produces a different hash.
  • Iterations: The number of times the hashing algorithm is applied. Higher iterations increase security but also increase computation time.
  • Key Size: The length of the derived key. Common sizes are 128-bit, 256-bit, and 512-bit.

Why Use PBKDF2?

PBKDF2 is recommended by NIST and other security standards for password storage and key derivation. By using a salt and many iterations, it effectively neutralizes pre-computed table attacks (like Rainbow Tables) and significantly slows down brute-force and dictionary attacks.

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