[Aide] Minimum checks for file integrity?

[Andy Lawrence]

NORMAL by default was FIPSR + sha512.

Well, my study was cut short when I saw how much faster md5 was!  All from
the same box, 450k files, 6TB total, time in minutes:

NORMAL = 902
sha512 = 416
md5 = 280

md5 is plenty fast and appears to do what I need, Richard many thanks for
the help.

Andy


On Mon, Jan 20, 2014 at 3:40 PM, Richard van den Berg <richard at vdberg.org>wrote:

> > I'm currently running a complete test on two different machines, on each
> of the following:
> >
> > NORMAL
> > sha256
> > sha512
> > md5
> >
> > Do you happen to know, are all of the above capable of detecting corrupt
> files or single bit flips?  I would imagine md5 would be the quickest, but
> is it enough protection?  I'm not trying to keep the NSA out, ha ha.
>
> What is your NORMAL macro defined as? It probably has several hashes as
> well. One hash is really enough for what you need. Even md5 will do. There
> are known collisions for md5 but they are not going to happen by accident.
>
>
> Kind regards,
>
> Richard
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