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Which of the following cryptographic techniques would BEST meet the requirement?
A financial institution would like to stare is customer data a could but still allow the data ta he accessed and manipulated while encrypted. Doing se would prevent the cloud service provider from being able to decipher the data due to its sensitivity. The financial institution is not concern about computational overheads and slow speeds,.
Which of the following cryptographic techniques would BEST meet the requirement?
A . Asymmatric
B . Symmetric
C . Homeomorphic
D . Ephemeral
Answer: B
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It should be Homomorphic .
Homomorphic encryption is a form of encryption that permits users to perform computations on its encrypted data without first decrypting it. These resulting computations are left in an encrypted form which, when decrypted, result in an identical output to that produced had the operations been performed on the unencrypted data. Homomorphic encryption can be used for privacy-preserving outsourced storage and computation. This allows data to be encrypted and out-sourced to commercial cloud environments for processing, all while encrypted.
from wiki:https://en.wikipedia.org/wiki/Homomorphic_encryption