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SSCP · Question #1252

If a sender is unable to deny having sent an electronic transmission, this concept is known as___________________

The correct answer is C. Non-Repudiation. Non-repudiation is a security principle that guarantees the sender of a message cannot later deny having sent it, providing undeniable proof of origin.

Submitted by kev92· Apr 18, 2026Security Concepts and Practices

Question

If a sender is unable to deny having sent an electronic transmission, this concept is known as___________________

Options

  • APKI
  • BVerification
  • CNon-Repudiation
  • DIrrevocable Trust
  • EPublic Key

How the community answered

(59 responses)
  • B
    2% (1)
  • C
    90% (53)
  • D
    5% (3)
  • E
    3% (2)

Why each option

Non-repudiation is a security principle that guarantees the sender of a message cannot later deny having sent it, providing undeniable proof of origin.

APKI

PKI (Public Key Infrastructure) is a framework that enables non-repudiation but is not the concept itself.

BVerification

Verification is the act of confirming something is true, but it's not the specific term for preventing denial of sending.

CNon-RepudiationCorrect

Non-repudiation provides irrefutable proof of origin of data and its integrity, preventing a party from successfully denying the authenticity of their signature on a document or the sending of a message. This is often achieved through digital signatures and cryptographic techniques.

DIrrevocable Trust

Irrevocable Trust is a general concept that doesn't specifically define the inability to deny an electronic transmission in a security context.

EPublic Key

A Public Key is a component of PKI used in cryptography, but not the term for preventing denial of sending.

Concept tested: Definition of non-repudiation

Source: https://learn.microsoft.com/en-us/windows/win32/seccrypto/security-features-of-pki#non-repudiation

Topics

#Non-repudiation#Security services#Information Security Principles

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