Multiple choice technology security What algorithm outputs a 128-bit message digest regardless of the length of the input? SHA MD5 RC4 RC6 Reveal answer Fill a bubble to check yourself B Correct answer Explanation MD5 is a hashing algorithm designed to produce a fixed 128-bit digest from inputs of any length. SHA variants produce digests of 160 bits or larger, while RC4 and RC6 are symmetric stream and block ciphers rather than hashing functions.