SSCP · Question #681
Which of the following statements is most accurate regarding a digital signature?
The correct answer is C. It allows the recipient of data to prove the source and integrity of data. A digital signature provides assurance of the origin and integrity of data, ensuring that a message has not been altered and comes from a verified sender.
Question
Which of the following statements is most accurate regarding a digital signature?
Options
- AIt is a method used to encrypt confidential data.
- BIt is the art of transferring handwritten signature to electronic media.
- CIt allows the recipient of data to prove the source and integrity of data.
- DIt can be used as a signature system and a cryptosystem.
How the community answered
(57 responses)- A2% (1)
- B5% (3)
- C89% (51)
- D4% (2)
Why each option
A digital signature provides assurance of the origin and integrity of data, ensuring that a message has not been altered and comes from a verified sender.
Digital signatures are primarily for authentication and integrity, not for encrypting confidential data, which is handled by encryption algorithms.
A digital signature is a cryptographic construct for security, not merely a digital representation of a handwritten signature.
Digital signatures utilize asymmetric cryptography to create a cryptographic seal that uniquely identifies the signer and verifies that the data remains unchanged since it was signed. This allows the recipient to confidently prove both the source (authentication/non-repudiation) and the integrity of the data.
While digital signatures use cryptographic principles, their function is specifically for authentication and integrity, distinct from a general-purpose cryptosystem for confidentiality.
Concept tested: Digital signature purpose and properties
Source: https://learn.microsoft.com/en-us/windows/win32/seccrypto/digital-signatures
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