Message Authentification Code (MAC) is:
A. Accepting a variable size message M as input and producing a fixed size message digest H(M) as output
B. Using a secret key to generate a small block of data
C. The statistical structure of the plaintext dissipated into long range statistics of the cipher text
D. A technique in which chosen plain texts with particular XOR difference pattern are encrypted
Answer:A
Message Authentification Code (MAC) is:
A. Accepting a variable size message M as input and producing a fixed size message digest H(M) as output B. Using a secret key to generate a small block of data C. The statistical structure of the plaintext dissipated into long range statistics of the cipher text D. A technique in which chosen plain texts with particular XOR difference pattern are encrypted