GAQM
CPEH-001 · Question #951
Tony wants to integrate a 128-bit symmetric block cipher with key sizes of 128,192, or 256 bits into a software program, which involves 32 rounds of computational operations that include…
The correct answer is D. serpent. See the full explanation below for the reasoning.
Question
Tony wants to integrate a 128-bit symmetric block cipher with key sizes of 128,192, or 256 bits into a software program, which involves 32 rounds of computational operations that include substitution and permutation operations on four 32-bit word blocks using 8-variable S-boxes with 4-bit entry and 4-bit exit. Which of the following algorithms includes all the above features and can be integrated by Tony into the software program?
Options
- ATEA
- BCAST-128
- CRC5
- Dserpent
How the community answered
(59 responses)- A10% (6)
- B2% (1)
- C5% (3)
- D83% (49)
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