On Thursday, February 20, 2020 10:34:53 PM CET, Sebastian Andrzej Siewior
via rsync wrote:
I'm still not sure if rsync requires a cryptographic hash _or_ if a
strong hash like xxHash64 would be just fine for the job.
I'm fairly sure the hash should *not* be easy to spoof, so I'd say a
cryptographic hash is needed.
As an example, if a file is replaced by a file of the same size and same
hash,
rsync (if -c is in use) will consider the file is the same, and avoid
copying it.
Dimitris
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