Where would ldlinux md5 be found?

[mahesh]

I'm using Rufus on a Windows computer for the purpose of producing a live Ubuntu USB. I have run MD5 check on the ISO, but Rufus informs me that 2 ldlinux files must be downloaded before I can proceed. The files download automatically through the Rufus app. I want to check the MD5 for those files. But I'm not finding that information anywher (and Rufus has not told me where the files came from, so I can't check for the MD5 there.)