Tag
protocol-design
- Jun 4, 2026 Unambiguous Message Framing in Cryptographic Protocols Why a byte string must decode to exactly one message structure, how length prefixes and canonical encodings achieve it, and where parsing ambiguities become key-recovery attacks. cryptography
- 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 22, 2026 Nonce Construction and the Reuse Limits of AEAD Why an AEAD nonce must be unique per key, how counter, random, and XOR-based constructions differ in what they assume, and what a repeated nonce reveals. cryptography
- Apr 29, 2025 Domain Separation and Labelled Key Derivation Why one master secret must never produce two interchangeable keys, how labels are encoded into a KDF, and which label collisions still cause cross-protocol failures. cryptography
- Jan 9, 2025 Fitting FDDI Management into an 802 Frame: Ancillary Data and the Unused ALT Field How FDDI carried station management frames, what the alternative media access control field was specified to select, and why a general-purpose slot in a frame header did not produce the architectural flexibility its designers expected. computing history