Tag
handshake
- Apr 20, 2026 The TLS 1.3 Handshake: What Each Flight Commits To The four-message exchange that produces keys: what ClientHello offers, what ServerHello selects, why the transcript hash is the spine, and when a retry costs an extra round trip. internet protocols
- Apr 19, 2026 Key Confirmation Ordering and What It Prevents Why a Finished message must come after the peer can no longer change the transcript, what an explicit key-confirmation exchange adds, and which attacks a misordered exchange leaves open. cryptography
- Jan 13, 2026 Transcript Hashing and Handshake Binding in TLS 1.3 How a running hash over handshake messages commits each flight to the ones before it, which secrets consume the digest, and what breaks when a message is left out of it. cryptography
- Dec 23, 2025 Pre-Shared Key Binders and the Cost of Early Data How a binder commits a client to a session ticket before the server has contributed anything, why 0-RTT cannot be replay-protected by the protocol, and what the truncation rules prevent. cryptography
- Nov 18, 2025 Counting Round Trips in Connection Setup How handshakes, name resolution, and security negotiation add serial round trips before the first byte of payload, and which of them can be overlapped. networking
- Nov 6, 2025 Clock Domain Crossing: Synchronizers, Handshakes, and Asynchronous FIFOs Why a signal crossing between unrelated clocks cannot be checked by static timing, and the three structures that carry data across a boundary safely. hardware engineering
- Jul 18, 2025 The QUIC Handshake: TLS 1.3 Without a Record Layer How CRYPTO frames carry the TLS handshake inside the transport, why encryption levels change mid-handshake, and how Retry forces address validation before a certificate is sent. internet protocols
- Jul 17, 2025 SYN Cookies and the Cost of Half-Open Connections How a server avoids storing state for every handshake attempt by encoding the connection parameters into the initial sequence number, and what the encoding gives up. networking
- Aug 17, 2022 Counting Round Trips Before the First Payload Byte A cold request on a phone crosses radio setup, name resolution, a transport handshake, and a TLS handshake before any application data moves, and each layer can be shortened. mobile computing