While hashes can help you confirm a file wasn't tampered with, there's still one avenue of attack here. Some Hashes are Cryptographically Signed for Even More Security That's why you should prefer SHA-256 when possible. These are multiple different files-for example, a safe file and a malicious file-that result in the same MD5 or SHA-1 hash. Note that "collisions" have been found with the MD5 and SHA-1 functions. This confirms the file you have is the exact same file being offered for download on the Linux distribution's website, without any modifications. You can then run it through the hash function on your computer and confirm that it matches the hash value you'd expect it to have. You can look up the hash of that specific ISO file online on the Linux distribution's website. ISO file you got from somewhere and you want to confirm it hasn't been tampered with. These can also be useful if you have a file you got from an unofficial source and you want to confirm that it's legitimate. As we saw above, even a small change to the file will dramatically change the hash. I've been ordering equipment for a long time I've been through catalog ordering, followed by Yahoo storefronts, tigerdirect, pc connection, and newegg.These days, my top sit.That way, you can download the file and then run the hash function to confirm you have the real, original file and that it hasn't been corrupted during the download process. Just curious where others are ordering their electronics supplies from nowadays.
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