OpenID

Yandex ID personal account allows you to work with your data. - https://passport.yandex.ru/profile/data
When logging in you will be sent a code by SMS to your phone, you will need to enter it.
That is, you can request the archive with the information accumulated about you by Yandex.
It will be necessary to wait some days, then they will inform.

There is an opportunity to delete selectively or completely your data.

The archive includes information from more than 50 services Yandex.
You can now delete data from Alice, Yandex.Music, Yandex.Mail, Yandex.Messenger, Yandex.Station, and other services.

A free service for logging into websites and applications, which provides access to the capabilities of the Sber ecosystem and partners.

Everyone can use Sber ID, it is not necessary to be a bank client.
Creating a Sber ID is easy, and if you have a card and the SberBank Online application, you already have it.
Your Sber ID is your phone number.

A single account for all services of the MTS ecosystem.
More than 90 services for work and entertainment: from business promotion tools to an online store and an online cinema.

Entrance to state sites through the State Services (ESIA).

In order to register and use the State Services website, you will need to go to the MFC and present documents to prove that it is really you. There are other ways to verify.
But then you will have access to many government sites where you do not need to register and verify, but visit using the State Services ID. Moreover, the documents that you have submitted to the State Services will not have to be entered on those sites.

https://openid.net

OpenID Wiki

Making a startup hospitable "or" How to use OpenID on your site

OpenID is a decentralized single registration system. This is somewhat wider than stated on wordpress.com: "OpenID is an open standard that allows you to log in to other people's sites using your A WordPress.com account ":) If you are registered with a project that is, among other things, an OpenID provider, you can log in to this single account on any site that supports OpenID. It sounds wonderful, the idea is fantastic, but there is a reasonable question: "Are there many projects supporting OpenID or is it an unpredictable future?" In principle, not a little. Already stated about 1200 sites that support OpenID and every day comes 10-15 new. Among these sites are many popular projects: Livejournal.com, Vox.com. Wikitravel.org, Ma. Gnolia.com, Movabletype, Iconbuffet.com, Basecamphq.com. There are integration modules for such popular software, such as Wordpress, Joomla!, Plone, Drupal. MediaWiki, CakePHP, Symfony Framework. Microsoft and AOL declared support for the technology. OpenID support will be implemented in Firefox 3.0.

But how to use OpenID on your site? If you are building a project on the CakePHP framework or Symfony, you just need to configure the plugins CakePHP OpenID component and sfOpenIDPlugin respectively. If you do not use the framework, but just want to attract users to the registration for your project (maybe a startup), the easiest way is to use the small library Simple OpenID PHP Class. In the package, available for download in addition to the library, there is an example script where in an accessible form is shown how to authorize the user through the OpenID protocol. The only trouble you can face is this library uses the functions of the PHP Libcurl extension library. Those. If your PHP is compiled with the option --with-curl - everything is fine. Otherwise, this library is unlikely to work. The author of this solution was forced to use specific functions where it would be possible to use more traditional methods of HTTP-request due to the fact that many OpenID providers require an SSL connection.

If you are more serious and are going to implement a full-fledged management of user accounts in your project, relying on popular solutions such as OpenID, LID (Light-Weight Identity) and Yadis, use the NetMesh InfoGrid LID PHP. It is also worthwhile to draw ATTENTION on the PHP OpenID library. However, in this case, you will need a console PEAR-installer.

In conclusion, I must say that there is a number of criticisms of OpenID regarding vulnerability in security. In my opinion, also the need to read a complete HTML page for the subsequent analysis of microformat tags is an extremely inefficient approach (the OpenID 2.0 specification requires an XRDS document or a Yadis document). I would like to use REST, but this There are some doubts about the account. Nevertheless, OpenID is just the case when a great idea still works. So, personally, I will be glad if I can use my OpenID account on the new original promising project that you collected.