CompTIA Security+ (SY0-501) — Question 625

Which of the following algorithms would be used to provide non-repudiation of a file transmission?

Answer options

• A. AES
• B. RSA
• C. MD5
• D. SHA

Correct answer: C

Explanation

MD5 is a hashing algorithm that creates a unique hash value for data, enabling non-repudiation by proving that the data has not been altered during transmission. AES is for encryption, RSA is for secure key exchange, and SHA is also a hashing algorithm, but MD5 is specifically mentioned as the answer in this context.