Home » Isaca » CISA » The purpose of a checksum on an amount field in an electronic data interchange (EDI) communication of financial transactions is to ensure:
The purpose of a checksum on an amount field in an electronic data interchange (EDI) communication of financial transactions is to ensure:
A. integrity.
B. authenticity.
C. authorization.
D. nonrepudiation.
Correct Answer: A
Explanation/Reference:
A checksum calculated on an amount field and included in the EDI communication can be used to identify unauthorized modifications. Authenticity and authorization cannot be established by a checksum alone and need other controls. Nonrepudiation can beensured by using digital signatures.
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