What is Data Encryption Standard (DES)?
2018
What is Data Encryption Standard (DES)?
- A.
Block cipher
- B.
Stream cipher
- C.
Bit cipher
- D.
None of the above
Attempted by 261 students.
Show answer & explanation
Correct answer: A
DES is a symmetric-key block cipher that encrypts data in fixed-size 64-bit blocks. Key points: Symmetric-key: the same key is used for encryption and decryption.