CompTIA Security+ (SY0-701) — Question 2

Which of the following is used to add extra complexity before using a one-way data transformation algorithm?

Answer options

• A. Key stretching
• B. Data masking
• C. Steganography
• D. Salting

Correct answer: D

Explanation

Salting is the process of adding random data to the input of a one-way function to ensure that identical inputs produce different outputs, thereby enhancing security. Key stretching, data masking, and steganography do not specifically serve the purpose of complicating the input for a one-way transformation algorithm as salting does.