Digital forensic image verification system

Abstract

A digital forensic image verification system according to an embodiment of the present disclosure includes an imaging device having a imaging unit configured to produce an image, a first hash value generator configured to generate a first hash value for the image, and a transmitting unit configured to transmit the image and the first hash value; and an image storage device having a receiving unit configured to receive the image and the first hash value from the imaging device, a second hash value generator configured to generate a second hash value for the image, and a controller configured to compare the first hash value and the second hash value with each other.

1 . A digital forensic image verification system comprising:
 an imaging device comprising:   an imaging unit configured to produce an image;   a first hash value generator configured to generate a first hash value for the image; and   a transmitting unit configured to transmit the image and the first hash value; and   an image storage device comprising:   a receiving unit configured to receive the image and the first hash value from the imaging device;   a second hash value generator configured to generate a second hash value for the image; and   a controller configured to compare the first hash value and the second hash value with each other.   
     
     
         2 . The digital forensic image verification system of  claim 1 , wherein the imaging device further comprises a muxing unit configured to mux the first hash value and the image corresponding to the first hash value,
 wherein the transmitting unit of the imaging device is configured to transmit the image and the first hash value muxed by the muxing unit.   
     
     
         3 - 20 . (canceled) 
     
     
         21 . The digital forensic image verification system of  claim 2 , wherein the receiving unit of the image storage device is configured to receive the image and the first hash value muxed by the imaging device,
 wherein the image storage device further comprises a demuxing unit configured to demux the muxed image and first hash value.   
     
     
         22 . The digital forensic image verification system of  claim 21 , wherein the image storage device further comprises a storage unit configured to store the demuxed image and first hash value separately. 
     
     
         23 . The digital forensic image verification system of  claim 1 , wherein the second hash value is generated only when the image is backed up for exportation of the image. 
     
     
         24 . A digital forensic image verification system comprising:
 an imaging device comprising   an imaging unit configured to produce an image;   a first hash value generator configured to generate a first hash value for a part of the image produced by the imaging unit; and   a transmitting unit configured to transmit the image and the first hash value; and   an image storage device comprising:   a receiving unit configured the image and the first hash value from the imaging device;   a second hash value generator configured to generate a second hash value for the image; and   a controller configured to compare the first hash value and the second hash value with each other.   
     
     
         25 . The digital forensic image verification system of  claim 24 , wherein the first hash value generator is configured to generate the first hash value for some of frames consisting of the image produced by the imaging unit. 
     
     
         26 . The digital forensic image verification system of  claim 25 , wherein the frames for which the first hash value is generated among the frames consisting of the image produced by the imaging unit comprise frames arranged at intervals of a certain order among frames arranged in a sequential order to form the image. 
     
     
         27 . The digital forensic image verification system of  claim 25 , wherein the frames for which the first hash value is generated among the frames consisting of the image produced by the imaging unit comprise frames arranged at certain time intervals among frames arranged in a sequential order to form the image. 
     
     
         28 . The digital forensic image verification system of  claim 25 , wherein the frames for which the first hash value is generated among the frames consisting of the image produced by the imaging unit comprise frames corresponding to intervals of a certain data size among frames arranged in a sequential order to form the image. 
     
     
         29 . The digital forensic image verification system of  claim 25 , wherein the first hash value generator is configured to generate the first hash value for some regions of the image produced by the imaging unit. 
     
     
         30 . The digital forensic image verification system of  claim 25 , wherein the first hash value generator is configured to generate the first hash value in units of an images data file produced by the imaging unit. 
     
     
         31 . The digital forensic image verification system of  claim 24 , wherein the second hash value is generated only when the image is backed up for exportation of the image. 
     
     
         32 . A digital forensic image verification system comprising:
 an imaging device comprising:   an imaging unit configured to generate images;   a first hash value generator configured to generate a first hash value for the images; and   a transmitting unit configured to transmit the images and the first hash value; and   an image storage device comprises:   a receiving unit configured to receive the images and the first hash value from the imaging device;   a second hash value generator configured to generate a second hash value for some of the images received by the receiving unit; and   a controller configured to compare the first hash value and the second hash value with each other.   
     
     
         33 . The digital forensic image verification system of  claim 32 , wherein the second hash value generator is configured to generate the second hash value for some images backed up among the images received by the receiving unit. 
     
     
         34 . The digital forensic image verification system of  claim 32 , wherein the first hash value generator is configured to generate the first hash value for some of the images produced by the imaging unit, and
 the second hash value generator is configured to generate the second hash value for the images for which the first hash value is generated among the images produced by the receiving unit.   
     
     
         35 . The digital forensic image verification system of  claim 32 , wherein the second hash value generator is configured to generate the second hash value for images requested to be transmitted to the outside among the images received by the receiving unit.