Electronic Signature for Tamper-Proof Digital Images

Cameras with internal signature guarantee data integrity

Electronic data processing today is standard in the most different processes and thus the importance of an electronic signature increases to guarantee the authenticity of data for all kinds of digital documentation.

 

Camera-internal electronic signature for tamper-proof digital images

Camera-internal electronic signature for tamper-proof digital images

Sign digital images together with additional data

Electronic data processing today is standard in the most different processes and thus the importance of an electronic signature increases to guarantee the authenticity of data for all kinds of digital documentation.
Kappa signature cameras provide the ability to sign digital images together with additional data (measuring data, QA data, batch number, etc.) directly with a camera-internal signature. This signature assures authenticity and integrity of the data and provides evidence that is admissible in a court of law. Any manipulation of the image data is evident and can be proven.

 

Signature procedure

The digital signature generation is based on the RSA 2048-bit signature and the SHA 512-bit hash function. The generated signature, which is attached to the document, is encrypted by a private key. The actual data are not encrypted, so that the document remains readable in plain text after the signature operation. The public key is used to verify signature accuracy.

The decisive advantage of signing image data directly in the camera is the probative force. Contrary to subsequent encryption procedures, for example at a PC, image data and additional data cannot be manipulated before signing them.

 

The user obtains the safety of reliable and manipulation-proof data, for example, for quality control or process control:

Typical applications

Product liability: Authentication of  production data, serial number, and reference images

Counterfeiting evidence by checking the signature

Surgical images and patient data can be signed together as one document

Integrity evidence and authentication of image data for forensic applications, criminal prosecution, QA documentatation, liability cases

Authenticated image acquisition of traffic offenses, e.g., red light and speeding

 

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