On July 28, 2017, the Government of the Russian Federation approved the program "Digital Economy of the Russian Federation". In the conditions of digital economy, when information in digital form is a key factor in the production of all spheres of socioeconomic activity, paper documents will be actively replaced by electronic ones, and handwritten signature - by its digital counterparts. However, the transition to digital data requires the updating of existing technologies and concepts. Special attention in the program "Digital Economy of the Russian Federation" is given to the issue of creating a trusted circuit, within the framework of which it will be possible to exchange various data in digital form, store and process data, and provide ...