Each download file on the home site contains a checksum value. This value is generated using a selected algorithm to generate a digital signature. You must match this printed value on the home site with the actual generate value of the file you downloaded. You can use the free software ("CHECKSUM TOOL") download from the home site to generate any checksum value using algorithms such as MD5, SHA1, SHA256 and SHA512. Each algorithm used can generate very unique digital signatures - you can use the free tool to perform any checksum verifications as well as generating your own file and text checksums.
MD5 is less secure than SHA-1/256/512 with SHA 256/512 being very secure and extremely unique.
1) Download either the .cab file or .zip file.
2) Download the CHECKSUM TOOL - then run the tool and simply drag & drop the file over any of the File groups (1/2/3). You can drag & drop or click the button next to the text box to open up a file to generate a checksum value.
3) After checksum is generated, simply copy and paste the verification value printed on the main home site - the boxes will turn GREEN if they match, RED if they don't.
4) If you don't get a match, either the file is not the correct file or something was corrupted when you downloaded the file.
You can use this tool for your own needs - you can create checksum values for ANYTHING you'd like to. For example, if you wanted to know if someone modified a particular file you posted - even a text file/text message, you can simply create a checksum value - then you can compare this to the return file. There are plenty of uses for checksum values - mainly use it to ensure no one has tampered with your file - you can change a files name but you can never alter the digital signature. You can even insert a password text and have the checksum output the value - then insert it into an email message as your signature - next time you want to verify if the message originated from you, compare the "hashed" values.