Showing papers on "Digital evidence published in 1998"
Patent•
20 Apr 1998
TL;DR: In this article, the authors proposed a digital evidence camera system that detects falsified image data obtained by photographing an object with a camera and consists of a camera section 50-1 provided with an image pickup means 60 that photographs an object and with a MAC generating section 11 that generates falsification detection data (MAC) from image data by using a secret key set in advance and a falsification check device 101 that uses a public key corresponding to the secret key to decode the data MAC and checks whether or not the image data are falsified based on the decoding result.
Abstract: PROBLEM TO BE SOLVED: To provide a digital evidence camera system where evidence capability of a digital image is enhanced and an encrypted key is managed at a very high security level. SOLUTION: The digital evidence camera system detects falsified image data obtained by photographing an object with a camera and consists of a camera section 50-1 provided with an image pickup means 60 that photographs an object and with a MAC generating section 11 that generates falsification detection data (MAC) from image data by photographing by using a secret key set in advance and of a falsification check device 101 that uses a public key corresponding to the secret key to decode the data MAC and checks whether or not the image data are falsified based on the decoding result.
19 citations