Which of the following controls BEST provides confidentiality and nonrepudiation for an online business looking for digital payment data security?

The correct answer is D. Public key infrastructure (PKI). Public key infrastructure (PKI) provides both confidentiality and nonrepudiation through the use of encryption and digital signatures. In online business transactions involving digital payments, PKI ensures secure data transmission, verifies the sender’s identity, and prevents de

Submitted by parkjh· Apr 18, 2026Protection of Information Assets

Question

Options

AAdvanced Encryption Standard (AES)
BVirtual private network (VPN)
CData Encryption Standard (DES)
DPublic key infrastructure (PKI)

How the community answered

(54 responses)

A
11% (6)
B
7% (4)
C
4% (2)
D
78% (42)

Explanation

Public key infrastructure (PKI) provides both confidentiality and nonrepudiation through the use of encryption and digital signatures. In online business transactions involving digital payments, PKI ensures secure data transmission, verifies the sender’s identity, and prevents denial of transaction authenticity.

Topics

#Confidentiality#Nonrepudiation#PKI#Digital Payment Security

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