LFCA · Question #65
Encryption that uses both a private key and public key is known as what?
The correct answer is C. Public Key Cryptography (asymmetric cryptography). Encryption that employs a distinct public key for encryption and a private key for decryption is known as Public Key Cryptography, also referred to as asymmetric cryptography.
Question
Encryption that uses both a private key and public key is known as what?
Options
- AKey Pair Encryption (symmetric cryptography)
- BHMAC Cryptography (hash based message authentication]
- CPublic Key Cryptography (asymmetric cryptography)
- DDPE (dual-phased hybrid encryption]
How the community answered
(48 responses)- A4% (2)
- C94% (45)
- D2% (1)
Why each option
Encryption that employs a distinct public key for encryption and a private key for decryption is known as Public Key Cryptography, also referred to as asymmetric cryptography.
Symmetric cryptography uses the same key for both encryption and decryption, not a distinct public and private key pair.
HMAC Cryptography is used for message authentication and integrity verification using a shared secret key and a hash function, not for encryption with public and private keys.
Public Key Cryptography, also known as asymmetric cryptography, uses a pair of mathematically linked keys-one public for encryption and one private for decryption-allowing secure communication without pre-sharing a secret key.
DPE (dual-phased hybrid encryption) is not a standard or recognized term for encryption using public and private keys.
Concept tested: Public key cryptography principles
Source: https://learn.microsoft.com/en-us/azure/security/fundamentals/encryption-overview#asymmetric-encryption
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