Information deduplication. MD5 may be used to identify duplicate files by creating a hash for each file and comparing the hashes. If two data files deliver the exact same hash, they are likely identical, making it possible for for efficient data deduplication. append "1" little bit to information< // Recognize: https://troyafino.nizarblog.com/34228363/a-secret-weapon-for-what-is-md5-technology