Eliminate Relay Attacks Forever
Non-deterministic encoding with 10600+ combinations per code. Time-fenced replay protection makes relay and replay attacks impossible.
Relay attacks allow thieves to steal cars in under 60 seconds by amplifying and forwarding legitimate key fob signals. No physical break-in required. No advanced hacking skills needed. Just $100 in equipment from online marketplaces.
ZOSCII automotive security uses a random file as the ROM. Even short commands generate astronomical numbers of possible valid codes.
Same command ("UNLOCK") generates 10600+ different valid codes. Random selection means every transmission is unique. Pattern analysis is mathematically impossible.
Each button press sends a unique code. Configurable replay protection: codes can be blocked for 24 hours after use, or blocked permanently. Captured signals provide zero intelligence for future attacks.
When thieves attempt replay attacks, the car responds with loud horn chirps. Owner is immediately alerted from 50+ feet away. Attack attempts are exposed, not silent.
Non-deterministic encoding with 10600+ combinations per code. Configurable protection: one-time use, time-fencing, or round-robin with blocking. Captured codes provide zero intelligence for future attacks.
Multiple cars on the same frequency don't interfere. Wrong car receives signal, decodes gibberish, silently ignores. Natural incompatibility prevents cross-talk without complex routing.
Works with current 315/433/868 MHz systems. No new frequencies required. No FCC re-certification needed. Drop-in replacement for existing key fob rolling code implementations.
ZOSCII uses encoding, not encryption. No crypto export restrictions. Deploy worldwide without compliance hurdles.
ROM updates at service appointments create recurring revenue
Customers benefit from reduced premiums; OEMs from fewer theft claims
"Relay-attack proof" as a differentiator in competitive segments
No crypto hardware required; works with existing RF systems
| Feature | ZOSCII Button Fob (RKE) | ZOSCII Passive Entry (PKE) | Traditional Encrypted (e.g., AES) |
|---|---|---|---|
| Primary Security Model | ITS-encoded rolling codes (Selection from 10600+ valid codes) | ITS-encoded challenge-response (Real-time encoding from 10scalable valid codes) | AES-128/256 encryption (Flat 2128 or 2256 keyspace) |
| Quantum Resistance | ✅ **ITS for encoded data** + **Combinatorially Secure** (Brute force infeasible) | ✅ **ITS for encoded data** + **Combinatorially Secure** (Protocol-level zero knowledge) | ❌ Vulnerable to quantum attacks (Shor's Algorithm) |
| **Replay Attack Defense** | ✅ Used code tracking + **Time-Fencing** | ✅ **Challenge-Response** with fresh encoding | ✅ Rolling counters or Nonces |
| **Relay Attack Defense** | N/A (Requires physical button press) | ✅ **Distance Bounding** (RTT PING-PONG verification) | ✅ RTT verification with challenge-response |
| **Fob/Module Complexity** | Minimal (Pre-generated codes) | Moderate (Real-time ZOSCII encoding) | High (Dedicated crypto hardware, key storage) |
| **Key/File Management** | Simple **ROM File** distribution | Simple **ROM File** distribution | Complex key provisioning, HSM storage required |
| **Hardware Requirement** | Standard MCU, **No Crypto Hardware** | Standard MCU, **No Crypto Hardware** | Crypto accelerator or HSM **Recommended** |
| **BOM Cost** | $ | $$ | $$$ |
| **Battery Impact** | Very Low | Low | Moderate to High (Power-intensive crypto ops) |
| **Code Compromise Impact** | Zero intelligence gained | Zero intelligence gained | Potential system-wide vulnerability (Key compromise) |
| **Export Restrictions** | ✅ **None** (Encoding, not encryption) | ✅ **None** (Encoding, not encryption) | ⚠️ Crypto export regulations apply |
| **Latency (Response Time)** | <100ms | <100ms (Includes RTT distance check) | 100-300ms (Due to intensive crypto operations) |
| **Best Application** | Cost-sensitive RKE, Aftermarket, Maximum simplicity | Premium PKE, Maximum security and future-proofing | Legacy compatibility |
The ZOSCII Advantage: Simultaneous Security and Simplicity
ZOSCII automotive security builds on battle-tested technology already deployed in production applications worldwide. ZOSCII provides quantum-proof information-theoretic security for data transmission and storage through weaponized ambiguity and plausible deniability. In automotive applications, ZOSCII is adapted as a code validator rather than a traditional encoding key, trading information-theoretic security for deterministic command execution while maintaining astronomical combinatorial protection (10600+ valid codes per action).
Quantum-proof web messaging system with complete transparency.
Quantum-proof real-time secure chat demonstrating encoding performance at scale.
ZOSCII-encoded crypto wallet. Uncracked since launch. Real money proves security claims. Due to 'challenge transparency' Quantum-proof nature reduced down to 10^77 combinatorial strength.
MIT-licensed reference implementation. Complete transparency in operation.
Request a private demonstration of ZOSCII automotive security technology.
Available for licensing to automotive manufacturers and security system integrators.