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[liberationtech] iPhone5S Fingerprint and 5th amendment

Felix Eckhofer felix at
Wed Sep 11 08:57:40 PDT 2013


Am 11.09.2013 17:42, schrieb Peat Bakke:
> Are there any reasons why fingerprint data couldn't be treated with
> the same concern as passwords? That is, subject to a one-way hash
> before being stored, transmitted in signed payloads, etc?

my guess is that fingerprint scanners don't produce the exact same 
output every time a finger is scanned (similar to what an image scanner 
might see). Hash functions should produce completely different output if 
only a single bit is changed, making comparison with a stored value at 
least a very hard problem if not impossible.


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