Hash uses FIPS compliant algorithms to process files and return condensed digests of specified files. These digests, depending on the function used, return varying levels of 'finger-print' information about the file. It is statistically very unlikely that any two files would produce the same 'finger-print' digest, plus it is almost impossible to modify a file (intentionally or by accident) and maintain the digest results to match the original. Three common hash results are returned: MD5, SHA-1 and SHA-256. Both the SHA hashes are to the relevant FIPS specifications for that hash. In addition, other basic file information (creation, size, etc) are provided, making the 'finger-print' even stronger.