If the data files generated from trusted computers carry digital signatures
it would be more trustworthy. Otherwise, a person with proper knowledge can
still manipulate the data files, even if it is in binary. If the image
processing software routinely incorporate encrypted key information of the
original data to the final data files, then data from any computer can be
trusted. This would be best considering that in real life we often have to
combat the ice rings, splitting reflections, etc., at home.
For example, if the frames used for indexing the dataset are encrypted and
saved with or within the final data file as "proof of experiment", in a
universal format that can be used by the structure deposition servers to
verify the reported space group, resolution, and, to some degree, the
structure itself, it would probably serve the purpose.
Zhijie
--------------------------------------------------
From: "Chris Morris" <[log in to unmask]>
Sent: Friday, November 04, 2011 4:09 AM
To: <[log in to unmask]>
Subject: [ccp4bb] Archiving for fraud detection
> One argument for archiving images has been that reprocessing could
> demonstrate deliberately deceptive structures.
>
> In fact, what is needed for this is not necessarily the image. It is the
> last data file that was produced by a trusted computer. If the structure
> depends on mtz files produced at the synchrotron, then it is sufficient to
> authenticate the reduced data. The images are only needed for this purpose
> if they have been reprocessed.
>
> regards,
> Chris
> ____________________________________________
> Chris Morris
> [log in to unmask]
> Tel: +44 (0)1925 603689 Fax: +44 (0)1925 603634
> Mobile: 07921-717915
> Skype: chrishgmorris
> http://pims.structuralbiology.eu/
> http://www.citeulike.org/blog/chrishmorris
> Daresbury Lab, Daresbury, Warrington, UK, WA4 4AD
>
>
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