ITPEC FE Morning October 2020 Question 36
ITPEC FE Morning October 2020 — Question 36 of 80
RSA and Public-Key Cryptography — identify the algorithm based on prime factorization.
RSA is a public-key cryptography algorithm whose security relies on the difficulty of factoring extremely large numbers into primes.
Why not others:
- (a) AES — symmetric encryption, not public-key
- (b) DH (Diffie-Hellman) — key exchange based on the discrete logarithm problem, not factorization
- (c) DSA (Digital Signature Algorithm) — digital signatures, also based on the discrete logarithm problem
Key rule: RSA = prime factorization; DH/DSA = discrete logarithm. AES = symmetric (not public-key at all).
AI-generated — may contain errors
The original exam layout is preserved in the image so diagrams, formulas, tables, and code remain accurate.
This question comes from an official ITPEC past paper. ITPEC Practice is an independent study tool and is not affiliated with ITPEC. See the official FE past-paper collection or Report an issue.