Question

Which of the following control plans is designed both to authenticate a system user's identity and to verify the integrity of a message transmitted by that user?

1) coding schemes
2) digital signature
3) preformatted screens
4) check digit

Answer 1

A digital signature is a control plan that authenticates a user's identity and verifies the integrity of a message.

Step-by-step explanation:

The control plan designed both to authenticate a system user's identity and to verify the integrity of a message transmitted by that user is 2) digital signature. A digital signature is a mathematical technique that ensures the authenticity and integrity of digital documents or messages. It uses cryptographic algorithms to create a unique digital fingerprint of the message, which is then appended to the message itself. This allows the recipient to verify the identity of the sender and detect any modifications made to the message during transmission.