( ) is a security feature that tells a web client to associate a specific cryptographic public key with a certain web server to decrease the risk of attacks with forged certificates. HTTP Public Key Pinning HPKP MITM Learn more Public-Key-Pins Public-Key-Pins-Report-Only RFC 7469 Wikipedia: HTTP Public Key Pinning View Previous Terms: Block cipher mode of operation Certificate authority Challenge-response authentication Cipher Cipher suite Ciphertext CORS CORS-safelisted request header CORS-safelisted response header Cross-site scripting Cryptanalysis Cryptographic hash function Cryptography CSP CSRF Decryption Digital certificate DTLS (Datagram Transport Layer Security) Encryption Forbidden header name Forbidden response header name Hash HMAC HSTS HTTPS Key MitM OWASP Preflight request Public-key cryptography Reporting directive Robots.txt Same-origin policy Session Hijacking SQL Injection Symmetric-key cryptography TOFU Transport Layer Security (TLS) Credits Source: https://developer.mozilla.org/en-US/docs/Glossary/HPKP Published under license Open CC Attribution ShareAlike 3.0