What is the Diffuser?
The Diffuser is an algorithm that is designed to mitigate a possible class of attacks that involve changing encrypted information to introduce a security vulnerability into the system. With the Diffuser, small changes to the encrypted cipher text of a sector affect the entire sector when the data is decrypted. This behavior makes targeted attacks much more difficult to perform. For additional information about the BitLocker encryption method, see AES-CBC + Elephant diffuser in the Microsoft Download Center (http://go.microsoft.com/fwlink/?LinkId=80598).
