Computer Science for IGCSE & O level - Data Transmission (Section 6 - No. 46)
Which of the following is true about the security of symmetric encryption?
The key must be kept secret.
The key can be shared publicly.
It is always more secure than asymmetric encryption.
There is no need to protect the key.
Explanation
Since the same key is used for encryption and decryption, it's crucial to keep it confidential.
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