Codasystem - Digital original

To create a Digital Original you need to master the moment of capture of the picture. At this precise moment the Codasystem solution acquires the picture and the environmental data required (localization, time, date author) from trusted authorities and immediately encrypts it.

The encryption method we use is called steganography

What it does
	- Historically, Steganos means covered and Graphy means writing or drawing. - Definition : Art and science of writing hidden messages that no one apart from the intended recipient knows of the existence of the message
The Codasystem Steganography
	Based on two techniques : An algorithm used to detect any modifications that happened on the original data An algorithm used to find always information incrusted in the original data

Illustration
A digital picture is made of pixels A pixel is 3 bits A bit is a string of 8 digits, 0 an 1 It looks like this : 10110010 What we do : Our software, identifies in every bit, the least significant byte of the string and we replace it with a byte of the data we want to insert	All the new bytes inserted in the picture are linked to each other, creating a “map” of the new data, within the picture file	If a pixel of the picture is modified, the encrypted information is destroyed, therefore breaking the map of the new information.