Which of the following cryptographic techniques would BEST meet the requirement?

A financial institution would like to store its customer data in a cloud but still allow the data to be accessed and manipulated while encrypted. Doing so would prevent the cloud service provider from being able to decipher the data due to its sensitivity. The financial institution is not concerned about computational overheads and slow speeds.

Which of the following cryptographic techniques would BEST meet the requirement?
A . Asymmetric
B. Symmetric
C. Homomorphic
D. Ephemeral

View Answer

Answer: B

Explanation:

Symmetric encryption allows data to be encrypted and decrypted using the same key. This is useful when the data needs to be accessed and manipulated while still encrypted. References: CompTIA Security+ Study Guide, Exam SY0-601, Chapter 6