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Computer Networks
Symmetric Key Cryptography
Q
Which of the following is not an application of symmetric encryption algorithms.
AA. Data security
BB. Cloud storage
CC. User privacy
DD. Bitcoin’s block chain
Correct Answer:
D. D. Bitcoin’s block chain
Explanation:
Unlike data security, cloud storage and user privacy, bitcoin uses elliptic-curve cryptography over symmetric key cryptography. Elliptic curve cryptography not only used for encryption, but also for digital signatures and random generators.
