Judge: No cryptographic hash analysis without warrant

(Full Text of Article by Dan Goodwin from The Register)

Child porn case, from MD PA which sets forth warrant requirement for search of computer, even when "only" making a copy of the hard drive and doing a "hash analysis" i.e., adding up sums of numerical identifiers for various files without opening the files.

The hash analysis program was EnCase, which is in common use amongst law enforcement computer forensic experts.

Read the full text of the decision here.