Final answer:
The property discussed is known as Authentication, which involves verifying the identity of a message originator to ensure trust and validity of a message or transaction.
Step-by-step explanation:
The property of being genuine and being able to be verified and trusted; confidence in the validity of a transmission, a message, or message originator is known as Authentication.
This is because authentication refers to the process of verifying the identity of a user, device, or other entity in a computer system, often as a prerequisite to allowing access to resources in the system. It ensures that a message, a transaction, or a document is coming from a verified and trusted source. Authorization, on the other hand, determines what an authenticated user is permitted to do.
Encryption is the process of converting information or data into a code to prevent unauthorized access, while decryption is the process of converting encrypted data back into its original form.