350-701 · Question #610
Which type of encryption uses a public key and a private key?
The correct answer is D. asymmetric. Asymmetric encryption, also known as public-key cryptography, utilizes a pair of mathematically linked keys-a public key for encryption and a private key for decryption-to secure communications.
Question
Which type of encryption uses a public key and a private key?
Options
- Anonlinear
- Bsymmetric
- Clinear
- Dasymmetric
How the community answered
(29 responses)- A3% (1)
- C7% (2)
- D90% (26)
Why each option
Asymmetric encryption, also known as public-key cryptography, utilizes a pair of mathematically linked keys-a public key for encryption and a private key for decryption-to secure communications.
`nonlinear` is not a standard type of encryption.
Symmetric encryption uses a single, shared secret key for both encryption and decryption.
`linear` is not a standard type of encryption.
Asymmetric encryption uses two distinct but mathematically related keys: a public key that can be freely distributed and used to encrypt data or verify signatures, and a private key that is kept secret by the owner and used to decrypt data or create digital signatures. This key pair design allows for secure communication and digital signatures without prior shared secrets.
Concept tested: Asymmetric encryption (Public-Key Cryptography)
Source: https://learn.microsoft.com/en-us/azure/security/fundamentals/encryption-overview#asymmetric-encryption
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