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What should he employ to ensure image integrity?
Eliot just finished taking a forensic image of a server’s memory.



A. Make a duplicate of the image.
B. Run the image through AES-128.
C. Compress the image.
D. Run the image through SHA-2.

This question is part of Security + CST
Asked by Shawnkesinger, Last updated: Sep 10, 2020

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shawnkesinger

shawnkesinger

shawnkesinger
Shawnkesinger

Answered Jun 24, 2018

Run the image through SHA-2.

Run the image through SHA-2. Eliot should run the image through SHA-2. The SHA-2 hash function family consists of four algorithms, the most common of which are the 256-bit and 512-bit varieties. Hashes are used to prove integrity of data and images. Compressing the image would only decrease the storage space needed for the image; it would not ensure integrity. Running the image through AES-128 would encrypt it, ensuring confidentiality but not integrity. Making a duplicate would allow for availability but not integrity; in fact, integrity might be compromised if this is done, but that will depend on several factors. ####
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