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.

Explanation:
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 be ensured by using digital signatures.