MD5 File Checksum
Output
What is MD5 Sum?
An MD5 checksum is a mathematical algorithm is usually a set of 32-character hexadecimal letters and numbers that are computed on a file with a tool. These numbers are generated using special tools that employ “cryptographic hash function producing a 128-bit (16-byte) hash value”. It is used not only to encrypt a ZIP archive or an EXE installer but all kinds of files. You can assign an MD5 sum even to a text or document file. The perfect match of MD5 checksum value ensures that the digital integrity and security of a file has not been broken by someone else and also that it is the accurate copy of the original file.
Thus, there are the two main reasons if the MD5 hash value of a file you downloaded does not match against the original sum:
The file might be modified by someone else in an unauthorized way.
The file was not downloaded properly and some of its elements might have been corrupted.
Here's an example of what the MD5 checksum or hash value of a file might look like: 25912deacc5d55528e223ec7b99705cc