The key-check-value tag has no wiki summary.
4
votes
2answers
212 views
Checking a key before actually using it
I have a block of data crypted using twofish with a key of 128 bit.
The data must be accessed from a GUI, the user gives the key, the block is decoded and the real data is accessed.
Problem is that ...
2
votes
1answer
601 views
Sending KCV (key check value) with cipher text
I was wondering why it is not more common to send the KCV of a secret key together with the cipher text. I see many systems that send cipher text and properly prepend the IV to e.g. a CBC mode ...
