When the dcfldd version of dd is used, the investigator can acquire the MD5 hashes of chunks of data; even if the whole disk hash changes, you can still have valid pieces of the disk images.
"IGEN's TRICORDER is a self-contained diagnostic detection module ideally suited for hospital POC testing. It is based on IGEN's proprietary ORIGEN(R) technology, which enables high-value clinical testing, including immunodiagnostic and nucleic acid probe-based measurements."
Slashdot Mirror
They are slightly involved - with HAVA and with the software library. interesting idea about the competition, though.
When the dcfldd version of dd is used, the investigator can acquire the MD5 hashes of chunks of data; even if the whole disk hash changes, you can still have valid pieces of the disk images.
These guys (IGEN, now Bioveris) even licensed the name from Paramount.
http://www.biospace.com/news_story.cfm?StoryID=379 5304&full=1
"IGEN's TRICORDER is a self-contained diagnostic detection module ideally suited for hospital POC testing. It is based on IGEN's proprietary ORIGEN(R) technology, which enables high-value clinical testing, including immunodiagnostic and nucleic acid probe-based measurements."