312-50V10 · Question #355
Advanced encryption standard is an algorithm used for which of the following?
The correct answer is C. Bulk data encryption. AES is a symmetric block cipher designed specifically for encrypting large volumes of data efficiently. It is not used for key management or data integrity functions.
Question
Advanced encryption standard is an algorithm used for which of the following?
Options
- AData integrity
- BKey discovery
- CBulk data encryption
- DKey recovery
How the community answered
(19 responses)- A11% (2)
- B5% (1)
- C84% (16)
Why each option
AES is a symmetric block cipher designed specifically for encrypting large volumes of data efficiently. It is not used for key management or data integrity functions.
Data integrity is provided by hashing algorithms such as SHA-256 or message authentication codes, not by AES.
Key discovery refers to cryptanalytic techniques for breaking encryption, not a function AES is designed to perform.
AES (Advanced Encryption Standard) is a symmetric block cipher standardized by NIST and is designed for bulk data encryption, meaning it efficiently encrypts large amounts of data using a shared secret key. It operates on fixed-size blocks (128 bits) and supports key sizes of 128, 192, or 256 bits. It is the most widely deployed symmetric encryption algorithm for protecting data at rest and in transit.
Key recovery is a key management concept related to escrowing or restoring lost cryptographic keys, which is outside the scope of what AES does.
Concept tested: AES symmetric block cipher purpose
Source: https://csrc.nist.gov/projects/cryptographic-standards-and-guidelines/archived-crypto-projects/aes-development
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