A scheme where the same key both locks and unlocks the data is called:
ASynthetic
BSympathetic
CSymmetric
DSystematic
Answer & Solution
Correct answer: C. Symmetric
1. Only one key exists in the whole exchange.
2. It performs the encryption and the decryption alike.
3. That scheme is symmetric encryption.
_Source: OpenStax Foundations of Information Systems, Chapter 5, Information Systems Security Risk Management._
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