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Sony’s anti-tampering technology adds a cryptographic signature to in-camera photos

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Sony’s anti-tampering technology adds a cryptographic signature to in-camera photos

Sony anti-tampering technology

Sony has announced the availability of its tamper-proof photo technology built into the camera which cryptographically signs photos at the point of capture, allowing photographers to detect if the image is manipulated or tampered with down the line.

The technology, which is aimed at businesses, uses digital signatures that are processed by the camera at the time of capture and allow photographers to detect if changes have been made to an image and, as the company says, to thus protect them from fraudulent use.

The company says the technology was developed in response to what it calls “widespread issues” with unauthorized modification and “misconduct” around digital photo data. Anti-tampering technology is based on standard cryptography and when enabled, images are immediately processed with a unique signature by the camera’s processor.

“After that, any pixel modification, tampering, or potential tampering will void the image signature, as the image manipulation will be detected by the client’s certificate server during review,” Sony says.

The company adds that this new tamper-proof signature method ensures the secure creation and transmission of images. Sony says the technology is particularly useful for passports and identity verification, but goes further in combating image manipulation in media, medicine and law enforcement. He adds that the insurance and construction industries could also use it as a safe way to inspect and record damage.

“Sony’s mission is to empower business solutions with cutting-edge imaging technology and our in-camera digital signature is a true game-changer in combating image manipulation and tampering across many industries. “, Yasuo Baba, Director of Digital Imaging and European Product Marketing at Sony, said.

“Although appropriate adaptations for each industry must be made, the digital signature is multilingual and can be used internationally, allowing organizations around the world to streamline mandatory image signing with Sony technology.”

Sony has joined the Coalition for Content Provenance and Authenticity (C2PA) earlier this year. C2PA is the standards body dedicated to content authenticity that tackles the prevalence of misleading information online, which has similar goals to what Sony is positioning as responding to its new technology. That said, Sony’s announcement makes no mention of C2PA.

At launch, this technology is only available on the Sony Alpha 7 IV camera and subject to obtaining a license to activate Sony’s signature mode, the price of which has not been disclosed and is not available. only for professional users. Sony says it plans to expand support for this new cryptographic signature to other cameras, but did not provide details or a timeline for said rollout.


Picture credits: sony

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