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GSLC · Question #554

Which key of the Asymmetric encryption is used to encrypt the data when a user sends a message or data to another user?

The correct answer is C. Public. In asymmetric encryption, a sender encrypts outgoing data using the recipient's public key, which can only be decrypted by the recipient's corresponding private key.

Security Architecture & Engineering

Question

Which key of the Asymmetric encryption is used to encrypt the data when a user sends a message or data to another user?

Options

  • ASymmetric
  • BPrivate
  • CPublic
  • DAsymmetric

How the community answered

(34 responses)
  • A
    3% (1)
  • B
    3% (1)
  • C
    88% (30)
  • D
    6% (2)

Why each option

In asymmetric encryption, a sender encrypts outgoing data using the recipient's public key, which can only be decrypted by the recipient's corresponding private key.

ASymmetric

Symmetric refers to a separate encryption model where a single shared secret key is used for both encryption and decryption, not to a key type within asymmetric encryption.

BPrivate

The private key is kept secret by the key owner and is used for decryption of received messages and for creating digital signatures, not for encrypting outbound data to that owner.

CPublicCorrect

The public key is freely distributed and used by any sender to encrypt data intended for a specific recipient. Only the recipient's paired private key - kept secret by its owner - can decrypt that ciphertext, ensuring confidentiality of the message in transit.

DAsymmetric

Asymmetric names the overall algorithm family or system type, not a specific key used within the process of encryption or decryption.

Concept tested: Asymmetric encryption public key role in confidentiality

Source: https://learn.microsoft.com/en-us/azure/security/fundamentals/encryption-overview

Topics

#asymmetric encryption#public key cryptography#PKI#key usage

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