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PBKDF2 and Encrypting Data
What keeps your wireless access point password secure? PBKDF2 (Password-based Key Derivation Function).
What keeps your password secure when you log into the Azure Cloud? That will be PBKDF2.
What is used to release the encryption on a VeraCrypt disk (previously known as TrueCrypt) encrypted drive? That will be PBKDF2.
There is a misconception that we feed the secret between Bob and Alice to directly generate the encryption key these will use. We basically define this as the long-term key that Bob and Alice use and where they shouldn’t use the same key for every session. For this, we use a KDF (Key Derivation Function) and which uses a salt value to generate the actual value that they will use. An example of this is with HKDF:
But, let’s say Bob and Alice share a secret password, and don’t use a key echange method. For this, the most popular key derivation function is PBKDF2 (Password-Based KDF) and which is used within WPA2 for wifi.
