File Attachment Hashing

We use file attachments to keep a copy of the reinstallation media for customer programs under our "Application" asset layout.

Due to the 100 megabyte file size limit, we are using a program like 7zip to split the files into 100mb zip files and then upload them.

I would like the ability for the files that are uploaded to display a hash of the file once it has been uploaded so that we can compare them with the hash of the file before upload so for verification purposes.