HPE6-A78 · Question #12

What is symmetric encryption?

The correct answer is C. It uses the same key to encrypt plaintext as to decrypt ciphertext. Symmetric encryption is a type of encryption where the same key is used to encrypt and decrypt the message. It's called "symmetric" because the key used for encryption is identical to the key used for decryption. The data, or plaintext, is transformed into ciphertext during…

Network Security Fundamentals

Question

Options

AIt simultaneously creates ciphertext and a same-size MAC.
BIt any form of encryption mat ensures that thee ciphertext Is the same length as the plaintext.
CIt uses the same key to encrypt plaintext as to decrypt ciphertext.
DIt uses a Key that is double the size of the message which it encrypts.

How the community answered

(28 responses)

B
7% (2)
C
89% (25)
D
4% (1)

Explanation

Symmetric encryption is a type of encryption where the same key is used to encrypt and decrypt the message. It's called "symmetric" because the key used for encryption is identical to the key used for decryption. The data, or plaintext, is transformed into ciphertext during encryption, and then the same key is used to revert the ciphertext back to plaintext during decryption. It is a straightforward method but requires secure handling and exchange of the encryption key.

Topics

#symmetric encryption#cryptography#encryption fundamentals

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