OneID -Single identification system

What is OneID?
The single identification system OneID is designed for easy access for all users to various websites and portals of state and economic administration bodies, local government bodies and commercial organizations.
One ID enables websites to identify users to provide a range of services. To do this, users must register their personal data in SIS One ID in advance, including login, password, full name, PIN, and so on.
In order to enter the website, the user must enter the username and password from his account in the One ID. After that, the system will check the compliance of the entered data and return the authentication result along with the user ID.
OneID also provides an opportunity for websites to implement additional authentication of their users using a one-time password and electronic digital signature. To do this, you must specify the preferred type of authentication in the request parameters.