Integrity

Integrity is the property that information has not been altered or changed in an unauthorized manner.

Examples include files, texts, videos, Tiktok clips, Instagram posts.

Data that has been tampered with has lost its integrity. (It can be violated through modifying configuration, changing system logs to avoid detection, human error, etc.)

Backups: The method ensures that the information originated from the signer and was not altered, and also proves the identity of the organization that created the digital signature. (Similar to encryption but the key does not encrypt the information).

This method produces a digital signature (a code) using the information. After sending, the receiver then checks if the signature matches with the information sent.

Checksums (hash functions): The computation of a function that maps the contents of a file into an alphanumeric value. Even the slightest change in a file can result in different output values, making it easier to spot if a piece of info has been altered.