QuStream Oxford Scientifica

QSDP/DQSP is a hardened version of the QuStream Core Protocol for primarily Unmanned Vehicles — Subsurface, Ground, Air & Space.

QSDP/DQSP vs AES & Post-Quantum Crypto under Electronic Warfare

An honest, evidence-based head-to-head — confidentiality, survivability, integrity and overhead — across contested manned and unmanned-vehicle links. Pick an operational domain below, then an attack type from the dropdown, to see how every protocol performs against that domain's channel. Goodput = commands correctly delivered; wrong = commands delivered but corrupted.

Where QSDP wins — honestly click to expand Security modelNo key exchangeOverhead efficiencyAuthenticated delivery
Security model
Information-theoretic confidentiality — harvest-now-decrypt-later immune, no conjectured hardness. unique
No key exchange
Native one-way & high-latency operation with forward secrecy — works where handshakes can't. Space · Subsurface
Overhead efficiency
~20 B smaller authenticated frame than AES-GCM — measured goodput & energy edge on constrained links.
Authenticated delivery
0% wrong commands under corruption, where AES-PSK accepts up to 100% corrupted.
Parity (not a win) on raw channel survivability and against properly-equipped AES — see Validation. Full honest comparison incl. where AES leads in QSDP vs AES.
Operating assumptions & overrides declared parameters — expand

All values below are documented engineering estimates, not measured link budgets. Where you know the real figures, override them. Bare-metal entries assume no link-level (PHY) FEC; on-link entries apply the per-domain coding gain below on top of the protocol's own (app-layer) FEC.

Link-level (PHY) FEC coding gain
Subsurface — acoustic rate-½ conv./turbo, degraded channel 4 dB
Ground/Air — tactical RF rate-½ K=7 convolutional (Viterbi) 5 dB
Space — satellite CCSDS turbo/LDPC, near-capacity 7 dB
Selectable range 0–10 dB (integer steps); on-link goodput is pre-generated at each gain — the override looks up the data, not a live formula. Drives every “on-link” entry.
Coding & capability layers
App-layer FEC default — identical for QSDP and every baselineReed–Solomon RS-16 (corrects ≤8 byte-errors/frame)
QSDP unique addition “+unique” entries onlyBayesian-FEC: MAC-gated dictionary recovery + hardened tag (+8 B) — static-dictionary command traffic only
ARQ retransmit budget as-deployed COTS AESGround/Air K=4 (two-way); Subsurface & Space K=1 (one-way / high-latency)
“Default” capabilities are modelled in all protocols (like-for-like); “unique” is credited to QSDP only and is a portable technique, not a cipher-intrinsic advantage.
Channel intensities (per domain)
Subsurface 32 B frameloss .35 · BER .02 · burst · reorder .35
Ground/Air 12 B frameloss .30 · BER .01 · burst · reorder .25
Space 16 B frameloss .10 · BER .005 · burst · reorder .03
Representative contested-link estimates per domain; the “Combined” attack mixes loss + BER + burst.