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Exam CISSP-ISSAP topic 1 question 56 discussion

Actual exam question from ISC's CISSP-ISSAP
Question #: 56
Topic #: 1
[All CISSP-ISSAP Questions]

Which of the following encryption modes can make protocols without integrity protection even more susceptible to replay attacks, since each block gets decrypted in exactly the same way?

  • A. Cipher feedback mode
  • B. Cipher block chaining mode
  • C. Output feedback mode
  • D. Electronic codebook mode
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Suggested Answer: D 🗳️
by 74gjd_37 at Oct. 23, 2023, 1:38 a.m.

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74gjd_37
6 months, 1 week ago
Selected Answer: D
D: Electronic codebook mode (ECB) can make protocols without integrity protection even more susceptible to replay attacks since each block gets decrypted in exactly the same way
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