[fitsbits] Hash Functions (MD5 is very obsolete)

On Tue, 8 Jul 2008, Rob Seaman wrote:
Apologies if you see this more than once.

FYI. A reminder that MD5 has been obsolete for several years. So
obsolete that even the U.S. federal government now regards its
successor as similarly obsolete :-)

Is anyone on the list aware of uses of the MD5 checksum in FITS
beyond protection against accidental bitflips from bad hardware?

Just trying to evaluate the urgency of a change...