Free ISC2 SSCP Actual Exam Questions - Question 8 Discussion
Question No. 8
What is the name of a one way transformation of a string of characters into a usually shorter fixed-
length value or key that represents the original string? Such a transformation cannot be reversed?
length value or key that represents the original string? Such a transformation cannot be reversed?
Select one option, then reveal solution.
US
MB
Michael B.
2026-02-14
A imo, because DES is symmetric encryption and reversible, while transposition and substitution are classical ciphers that can be undone. The one-way hash fits the description best as it’s non-reversible and fixed-length.
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NM
Naveed M.
2026-01-27
It's definitely not B, C, or D since they're reversible or different concepts.
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JJ
James J.
2026-01-20
It’s A because it describes a one-way hash function perfectly. But the question doesn’t specify if it’s about cryptographic hashes specifically or just any hash. Does it matter here? Also, DES is encryption, so it can be reversed with the key, which rules out B. Just wondering if the question expects the term “hash” or “hash function” exactly.
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