210-250 · Question #55
Which encryption algorithm is the strongest?
The correct answer is A. AES. Among the listed algorithms, AES (Advanced Encryption Standard) provides the strongest encryption due to its key length options and modern design.
Question
Which encryption algorithm is the strongest?
Options
- AAES
- BCES
- CDES
- D3DES
How the community answered
(42 responses)- A93% (39)
- C2% (1)
- D5% (2)
Why each option
Among the listed algorithms, AES (Advanced Encryption Standard) provides the strongest encryption due to its key length options and modern design.
AES supports key sizes of 128, 192, and 256 bits and was selected by NIST in 2001 as the replacement for DES after extensive cryptanalytic evaluation. It uses a substitution-permutation network and has no practical known attacks against full AES, making it significantly stronger than DES or 3DES. 3DES is stronger than single DES but is deprecated due to smaller effective block size and slower performance compared to AES.
CES is not a recognized or standardized encryption algorithm.
DES uses a 56-bit key, which is considered cryptographically broken and vulnerable to brute-force attacks.
3DES applies DES three times for an effective key strength of 112 bits, which is stronger than DES but still deprecated and weaker than AES-128/192/256.
Concept tested: Comparative strength of symmetric encryption algorithms
Source: https://csrc.nist.gov/publications/detail/fips/197/final
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