CompTIA
HIT-001 · Question #488
Data Encryption Standard (DES) is a 64 bit block cipher. Which of the following statements are true about Data Encryption Standard? Each correct answer represents a complete solution. Choose all…
The correct answer is A. All DES modes function on 64 bits of plaintext at a time in order to generate 64-bit blocks of cipher C. DES includes four modes of operation. Electronic Codebook mode, Cipher Block Chaining mode, D. DES uses the 56 bit long key. See the full explanation below for the reasoning.
Question
Data Encryption Standard (DES) is a 64 bit block cipher. Which of the following statements are true about Data Encryption Standard? Each correct answer represents a complete solution. Choose all that apply.
Options
- AAll DES modes function on 64 bits of plaintext at a time in order to generate 64-bit blocks of cipher
- BDES is a secure hash function for 8 bit processors.
- CDES includes four modes of operation. Electronic Codebook mode, Cipher Block Chaining mode,
- DDES uses the 56 bit long key.
How the community answered
(29 responses)- A76% (22)
- B24% (7)
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