Translations:Check a Downloaded ISO Image For Errors/6/en

The 'sha' part of the checksum file name stands for Secure Hash Algorithm. This algorithm is used to generate a particular code unique to the downloaded ISO image. sha1 and sha256 are different versions of the algorithm that you can use to do this. Whilst sha1 is the most commonly used version, sha256 is a later and more secure version. Whichever you decide to use is entirely your choice. However, if you are unsure, then it is recommended to use sha256.