Which of the following is true about asymmetric encryption?

The correct answer is D. A message encrypted with the public key can be decrypted with the private key. Asymmetric encryption uses a mathematically linked key pair: a public key (freely shared) and a private key (kept secret). The fundamental rule is that data encrypted with the public key can only be decrypted with the corresponding private key, and vice versa. This is the basis…

General security concepts

Question

Options

AA message encrypted with the private key can be decrypted by the same key
BA message encrypted with the public key can be decrypted with a shared key.
CA message encrypted with a shared key, can be decrypted by the same key.
DA message encrypted with the public key can be decrypted with the private key.

How the community answered

(22 responses)

A
5% (1)
B
9% (2)
D
86% (19)

Explanation

Asymmetric encryption uses a mathematically linked key pair: a public key (freely shared) and a private key (kept secret). The fundamental rule is that data encrypted with the public key can only be decrypted with the corresponding private key, and vice versa. This is the basis of secure data transmission-a sender encrypts a message using the recipient's public key, and only the recipient's private key can decrypt it. Options A and C describe symmetric behavior (same key encrypts and decrypts). Option B incorrectly references a 'shared key,' which belongs to symmetric encryption, not asymmetric.

Topics

#asymmetric encryption#public key#private key#cryptography

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