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Lifting a Fingerprint from a Photo

Police in the UK were able to read a fingerprint from a photo of a hand:

Staff from the unit’s specialist imaging team were able to enhance a picture of a hand holding a number of tablets, which was taken from a mobile phone, before fingerprint experts were able to positively identify that the hand was that of Elliott Morris.

[…]

Speaking about the pioneering techniques used in the case, Dave Thomas, forensic operations manager at the Scientific Support Unit, added: “Specialist staff within the JSIU fully utilised their expert image-enhancing skills which enabled them to provide something that the unit’s fingerprint identification experts could work. Despite being provided with only a very small section of the fingerprint which was visible in the photograph, the team were able to successfully identify the individual.”

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April 19, 2018 cameras, drugtrade, fingerprints, identification, Security technology Read more >

Using Wi-Fi to Get 3D Images of Surrounding Location

Interesting research:

The radio signals emitted by a commercial Wi-Fi router can act as a kind of radar, providing images of the transmitter’s environment, according to new experiments. Two researchers in Germany borrowed techniques from the field of holography to demonstrate Wi-Fi imaging. They found that the technique could potentially allow users to peer through walls and could provide images 10 times per second.

News article.

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May 16, 2017 academicpapers, cameras, Security technology, wifi Read more >

“Proof Mode” for your Smartphone Camera

ProofMode is an app for your smartphone that adds data to the photos you take to prove that they are real and unaltered:

On the technical front, what the app is doing is automatically generating an OpenPGP key for this installed instance of the app itself, and using that to automatically sign all photos and videos at time of capture. A sha256 hash is also generated, and combined with a snapshot of all available device sensor data, such as GPS location, wifi and mobile networks, altitude, device language, hardware type, and more. This is also signed, and stored with the media. All of this happens with no noticeable impact on battery life or performance, every time the user takes a photo or video.

This doesn’t solve all the problems with fake photos, but it’s a good step in the right direction.

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March 1, 2017 authentication, cameras, keys, pgp, Security technology, signatures Read more >