What actually prevents an attacker from forcing a TLS 1.3 client down to TLS 1.2? The defense is a clever sentinel hidden in the server's random field, and it is worth reading precisely because versio…
What actually lets a Certificate Authority delegate issuance for one domain without risking the whole Web? The mechanism is the Name Constraints extension (RFC 5280 §4.2.1.10), and it is one of the mo…
What actually stops a Certificate Transparency log from quietly rewriting its own history? The answer is the consistency proof, and it is the cryptographic spine of CT's trust model (RFC 6962). A CT l…
What actually does Encrypted Client Hello encrypt, and which metadata still leaks? A precise question, because ECH is often oversold as making TLS "fully private." It closes one specific gap. For year…
What actually is the difference between blocked mixed content and upgraded mixed content? The distinction is enforced by the browser, defined in the W3C Mixed Content specification, and it is finer th…
What actually changed in the structure of a TLS 1.3 cipher suite name? The rename is small on screen but reflects a deep redesign worth reading precisely. A TLS 1.2 suite like ECDHE-RSA-AES128-GCM-SHA…
