SSCP · Question #1165
Encryption ciphers that use the same key to encrypt and decrypt are called?
The correct answer is B. Symmetric encryption. Encryption ciphers that utilize the same secret key for both encryption and decryption operations are known as symmetric encryption.
Question
Encryption ciphers that use the same key to encrypt and decrypt are called?
Options
- AAsymmetric encryption
- BSymmetric encryption
- CPublic key encryption
- DDigital signature encryption
How the community answered
(40 responses)- A5% (2)
- B90% (36)
- C3% (1)
- D3% (1)
Why each option
Encryption ciphers that utilize the same secret key for both encryption and decryption operations are known as symmetric encryption.
Asymmetric encryption uses a pair of keys (public and private) where one encrypts and the other decrypts.
Symmetric encryption, also known as shared-key or secret-key encryption, uses a single, identical key for both the encryption of plaintext into ciphertext and the decryption of ciphertext back into plaintext.
Public key encryption is another name for asymmetric encryption.
Digital signature encryption uses asymmetric keys for authenticity and integrity, not typically for general data encryption.
Concept tested: Symmetric encryption definition
Source: https://learn.microsoft.com/en-us/windows/win32/seccrypto/symmetric-encryption
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