An active attacker changes the ciphertext which was made using the AES cipher algorithm. Which message properties are preserved even though that change was made. Choose one of the below: 1) Integrity ...
So for AEAD we have this scheme: encrypt(AD, Data) -> [key, cipher, tag] What if I want to provide some external identifier as an additional data (to be able to prove ext_id to get data back is ...
Since the demise of GTalk a few weeks ago, we've found that MIM seems to be the lightest instant messaging client out there. It connects to multiple chat services (MSN, Skype, Yahoo) Our main concern ...