olemus
digitaalsertifikaadi usaldatav sidumine autentimisobjektiga,
näiteks hostiga, teenusega, rakendusega
= the process of associating an object with a certificate or public key

ülevaateid
https://www.owasp.org/index.php/Certificate_and_Public_Key_Pinning
https://en.wikipedia.org/wiki/HTTP_Public_Key_Pinning
https://tools.ietf.org/html/draft-ietf-websec-key-pinning-21