What is data encryption standard (DES)?
A. block cipher
B. stream cipher
C. bit cipher
D. byte cipher
Answer:A
What is data encryption standard (DES)?
A. block cipher B. stream cipher C. bit cipher D. byte cipher
Explanation: DES is a symmetric key block cipher in which the block size is 64 bits and the key size is 64 bits. It is vulnerable to some attacks and is hence not that popularly used.