In triple DES, the key size is ___ and meet in the middle attack takes ___ tests to break the key.
(a) 2192 ,2112
(b) 2184,2111
(c) 2168,2111
(d) 2168,2112
This question was addressed to me in an online interview.
My question is taken from The Data Encryption Standard (DES) and It’s Strength in portion Block Ciphers and the Data Encryption Standard of Cryptograph & Network Security