Ruslan, see what the story is. EDS is an obsolete term, currently in FZ there is no such term, there are:
Cap - qualified electronic
NEP - enhanced unqualified
Probe - simple electronic signature
So, all on the same FZ (learn more here https://kontur.ru/spravka/41-kakie_vidy_podpisej_v...
and given the "passing" of documents. Inside the company you can use any signature to their action was legally valid, with some reservations.
So, for documents with life within the company (any statements to the Director, coordination of vacations and business trips), fits simple signature - and this, for a moment, just a username and password.
For documents related to Mat values (shipments between warehouses, delivery-acceptance certificates), better (actually, you need legal advice, it is, in your company know better) to use unskilled EP - a is any (absolutely any) certificate issued by any (absolutely) CA, with these reservations:
1. The internal Directive, which was reviewed and agreed each operating system employee, you must "agree" that the certificates of this CA are for your organization NAP ohms.
2. Certificates must be issued personally, and must uniquely identify employees.
Given this, the built-in Windows center certicicate easy for you. (the software for this type of signatures is - almost all of web service workflows, working through browsers able to work with the regular certificates (not GOT the end)). But really, even in this case, you can just use a username and password.
The very same cap (the same one that or Krypto Pro or ViPNet) if you need to exchange documents with ANOTHER entity, there is already a simple arrangement, in most scenarios will not be enough, especially when we are talking about sharing ТОРГ12 and SF (and derived forms). However, all orders, contracts, and less valuable documents, even in this case, it is possible to share use of the NEP (after putting this fact in the dopnik to the contract).
Here is such a response, not quite in the topic.
UPD. That's all I need.
1. You don't need a system able to work with signatures at all, quite the one that can make the Username and password of the user and to be able to tell Юзер1 - press button 1 last night, which was written to Coordinate.
2. Do not have to use some kind of Proff document management system, any web service tracker, and other things. View of OTRS or similar.