200-201 · Question #31
Which property of a cryptographic hash algorithm is desirable?
The correct answer is A. collision resistance. A desirable property of a cryptographic hash algorithm is collision resistance, meaning it is computationally infeasible to find two different inputs that produce the same hash output.
Question
Which property of a cryptographic hash algorithm is desirable?
Options
- Acollision resistance
- Breversibility
- Cnondeterminism
- Drainbow tables
How the community answered
(47 responses)- A91% (43)
- B4% (2)
- C2% (1)
- D2% (1)
Why each option
A desirable property of a cryptographic hash algorithm is collision resistance, meaning it is computationally infeasible to find two different inputs that produce the same hash output.
Collision resistance ensures that it is extremely difficult for an attacker to find two distinct inputs that generate the same hash output, which is crucial for data integrity and authentication in cryptographic applications.
Reversibility is an undesirable property for a cryptographic hash function, as it would compromise the security and one-way nature of the hash.
Nondeterminism is an undesirable property; a cryptographic hash function must be deterministic, meaning the same input always produces the exact same output.
Rainbow tables are precomputed tables used to reverse cryptographic hash functions, representing a weakness or attack vector, not a desirable property of the algorithm itself.
Concept tested: Cryptographic Hash Function Properties
Source: https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-107r1.pdf
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