Matching Pairs Security+ Key StretchingOnline version This will help with Comptia Security+ Key Stretching concepts by Brody Campbell 1 Key stretching uses _______ to add additional bits to the hash 2 Can help thwart ______ and _______ attacks. 3 The 2 common key stretching techniques are: __________ and __________ 4 Based on blowfish block cipher Used in linux to encrypt shadow file Salts the password before encrypting with blowfish 60 Character string Can also pepper the salt 5 Uses salts of at least 64-bit Uses pseudo-random functions like HMAC to protect passwords Used by WPA2 Can send it through the process over 1000 times Common bit sizes of 128 / 256 / 512 More susceptible to brute force Rainbow table & brute force bcrypt & PBKDF2 PBKDF2 salting bcrypt