What does the term “data encryption” primarily involve?

Data encryption primarily involves transforming information into a format that cannot be easily understood by unauthorized users. This is accomplished by using an algorithm and a key, which can convert plaintext (readable data) into ciphertext (encrypted data). The key is essential for decrypting the data back into its original form, making it unreadable to anyone who does not possess the appropriate decryption key. This practice is crucial for protecting sensitive information, ensuring that even if data is intercepted, it remains secure and confidential.

Choosing an option that focuses on storing or transferring data does not capture the essence of encryption, as encryption specifically addresses the need for data confidentiality and integrity without necessarily relating to its physical location. Similarly, deleting data is an action that does not pertain to encryption, which is about securing data during storage or transmission rather than removing it from a system. This distinction clarifies why the transformation and protection of data through encryption is the central focus of this concept.