Scenario: I have to protect the integrity of some files that will be exchanged between entities $A$, $B$, $C$. Entity $A$ creates the file (e.g. configuration) and sends it to $B$ and $C$. Entities ...
I am currently studying for an exam and this was a previous question: Give one advantage of using HMACs over using RSA to sign SHA-1 hashes. My thoughts are that it has something to do with the ...
Possible Duplicate: Should we MAC-then-encrypt or encrypt-then-MAC? Ok, this may be a dumb question but I'm wondering, with an HMAC signature of a ciphertext should I be signing the data ...