SSL pinning
SSL-kinnistus
olemus
SSL- sertifikaadi kinnistus
ülevaateid
https://stackoverflow.com/questions/45699036/what-is-the-difference-between-ssl-pinning-embedded-in-host-and-normal-certifi
https://www.thesslstore.com/blog/an-introduction-to-pinning/
https://www.owasp.org/index.php/Certificate_and_Public_Key_Pinning
https://medium.com/flawless-app-stories/ssl-pinning-254fa8ca2109
https://zhangqichuan.medium.com/explain-ssl-pinning-with-simple-codes-eaee95b70507