MD5 is a cryptographic hash function algorithm also known as 'Message-Digest Algorithm 5'. This string contains a series of digits generated by a unique one-way hashing procedure. Message-Digests Or MD5 are specially designed to safeguard the integrity of a piece of information, credential, data or media and to identify if there are changes and alterations to any part of a message itself. MD5 can produce a 128-bit (16 bytes) hash value, and it is characterized by a hexadecimal number of 32 digits.