no, MD5 is not the choice but any better digest function may be it.
I suggest SHA512 (well, you could also use SHA256 - there is also a SHA384 but it's just the same as calculating SHA512 and throwing away the extra bits)
<edit>typo fixed</edit>

In reply to Re^3: letting a browser client select a file to download by inode by esskar
in thread letting a browser client select a file to download by inode by leocharre

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