How to organize authorization by certificates issued by the CA on RoR?

Question

OpenSSL

I can’t understand how authorization by certificate takes place, there is an application in which you need to authenticate the company, there is a certificate of a legal entity in the .p12 format, I don’t understand the authentication logic, it turns out that a certificate is indicated, you extract data from it, check with the root CA for the validity of the certificate? How is it all built what to use? To be more precise, what tools can all this be implemented and can it be implemented at all? Does nginx openssl or RoR do it?

Answer 1

www.opennet.ru/base/sec/ssl_cert.txt.html
The article is old. But I think it will add understanding.