A hashing algorithm that converts a dataset of arbitrary size into a hash — a pseudorandom sequence of fixed-length characters.
The result is a kind of identifier for the encrypted data array. MD5 is used to verify the authenticity, integrity, and immutability of any set of characters (for example, computer code). Since the algorithm is open source, anyone can create a hash of their copy of an executable file and compare it with the one provided by the developers. If the checksums match, it means the file has not been modified. Some operating systems use MD5 to store passwords.