EC-Council
312-50V9 · Question #427
312-50V9 Question #427: Real Exam Question with Answer & Explanation
The correct answer is C: Rubber hose attack. The rubber hose attack extracts cryptographic secrets through physical coercion or threats against a person, requiring no computational tools.
Question
Which of the following cryptography attack methods is usually performed without the use of a computer?
Options
- ACiphertext-only attack
- BChosen key attack
- CRubber hose attack
- DRainbow table attack
Explanation
The rubber hose attack extracts cryptographic secrets through physical coercion or threats against a person, requiring no computational tools.
Common mistakes.
- A. A ciphertext-only attack involves statistically analyzing intercepted ciphertext to deduce the plaintext or key, which typically requires computational tools to process the data.
- B. A chosen key attack involves selecting and testing specific key values against encrypted data to find the correct key, a process that requires computational assistance.
- D. A rainbow table attack uses precomputed hash-to-plaintext lookup tables that must be stored on and searched with a computer to reverse password hashes.
Concept tested. Rubber hose attack - physical coercion cryptanalysis
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