QKD cannot be “broken” in the classical sense. Any eavesdropping attempt is immediately detected, and the compromised key is automatically discarded. As a result, a secure key never falls into unauthorized hands (provided it is stored securely). QKD security is grounded in the laws of physics — not mathematical assumptions.
Quantum Communication
Ultra-secure information exchange based on physics, ready for the quantum computing era
What is Quantum Communication?
Quantum communication is a next-generation method of transmitting information ultra-securely. One of its most important applications is Quantum Key Distribution (QKD) — a technology that provides the highest level of data protection, based on the laws of physics, not computational power or algorithm complexity. Security designed for the era of quantum computers.
A Brief Introduction
As technology advances, the risk grows that current encryption methods will become insufficient. QKD enables secure cryptographic key exchange in a way that detects any eavesdropping attempt before data is compromised.
Key Benefits:
- Security guaranteed by physics, not algorithms
- Resilience against quantum computers — today and in the future
- Full control over encryption keys
- Integration with existing IT infrastructure
- Ready for operational deployment
Why Encryption Matters:
Encryption is the Foundation of the Digital World
From national security and banking systems to everyday web browsing and messaging, encryption protects the data we rely on every day.
For encrypted data to be properly read, both parties must share a secret cryptographic key — known only to them.
The Key Challenge: Secure Key Exchange
Secure and frequent key exchange is one of the biggest challenges in modern cryptography. Today, it relies on mathematically complex algorithms — a solution that worked …until now.
The Quantum Threat
A Future That Has Already Begun
Ultra-fast computers, including quantum computers, threaten the long-term security of existing encryption algorithms.
The “store now, decrypt later” strategy — intercepting encrypted data today to decode it in the future — is especially dangerous.
Potential Consequences:
- Loss of data confidentiality
- Exposure of strategic information
- Non-compliance with future security regulations
The Solution: Quantum Key Distribution (QKD)
Security Based on Physics, Not Mathematics
QKD allows secure key exchange using fundamental quantum physics principles:
- Measuring a quantum particle (e.g., a photon) changes its state
- Quantum information cannot be copied without leaving a trace
Result: Any attempt to eavesdrop is immediately detected.
The Bottom Line?
Keys exchanged via QKD:
- Cannot be intercepted without detection
- Cannot be decrypted in the future
- Provide provable security — today and long-term
“Quantum key distribution is the future of secure telecommunications.”
— Grzegorz Brona, CEO, Creotech Instruments S.A.
“We must implement quantum technologies to remain secure.”
— Prof. Grzegorz Wrochna, Global Affairs Director, Creotech Instruments S.A.
Why choose QKD?
- Resistance to quantum attacks
- Integration with existing fiber infrastructure
- Proven BB84 protocol — the longest-studied QKD protocol
- ISO 23837 compliant — interoperability and certification-ready
- Ultra-precise synchronization via White Rabbit protocol
- Designed for real-world deployment
Use cases
- Secure financial transactions and interbank communication
- Critical infrastructure protection
- SCADA and control system security
- Secure medical data transmission
- Communication between distributed locations
- Strategic and intelligence information exchange
Industries
- Public administration
- Finance & banking
- Telecommunications
- Energy
- Healthcare
- Scientific research
- Defense & military
- Space industry
Our QKD System — Ready for Deployment. Universal and Easy to Integrate
Universal and Easy to Integrate
Our QKD system ensures resilience against quantum attacks, protecting highly sensitive institutions — from public administration and defense to finance and energy.
System Features:
- Transmitter and receiver modules
- Operates within existing fiber-optic networks
- Designed for regulated environments
Planned market availability: March 2026
QKD Ready for Certification
Our system uses the BB84 protocol, the oldest and most thoroughly researched QKD method, ensuring stability, predictability, and security.
The architecture reflects ISO 23837-1 standards, and as members of ETSI, we ensure compliance with industry best practices.
Downloads / Useful Links
FAQ
Eavesdropping introduces disturbances in the transmitted quantum states. The QKD system continuously monitors the transmission’s error rate.
If the error rate exceeds the acceptable threshold:
• the transmission is considered compromised
• the key is discarded
• users are notified of the intrusion attempt
No. QKD does not replace data encryption — it enhances it.
The QKD system delivers the most secure cryptographic keys possible, which are then used with established encryption mechanisms such as OTP, AES, VPN, TLS, and others.
The primary requirement is a fiber-optic connection between communication points.
The system can operate:
• within existing fiber networks,
• over dedicated or shared fibers,
• in point-to-point links or larger network topologies.
Specific requirements depend on the deployment scenario.
No. Our QKD system is designed to operate within existing fiber-optic networks. In many cases, no new infrastructure is necessary, which significantly reduces deployment costs.
The achievable distance depends on:
• fiber quality,
• signal loss,
• system configuration.
Typical deployments support connections from several tens of kilometers up to around 100 km. Larger networks use trusted-node architectures.
Integration is handled through:
• key management systems (KMS),
• standard APIs,
• compatibility with common security solutions.
For the end user, the encryption process remains unchanged — the only difference is that the keys come from QKD.
The key generation rate depends on:
• link length,
• signal quality,
• system configuration.
The system continuously generates keys, ensuring regular key rotation and maintaining a high level of security.
Deployment costs depend on:
• the number of locations,
• link distances,
• integration requirements.
QKD is an investment in long-term security, especially critical for organizations managing high-value data with extended confidentiality requirements.
Return on investment isn’t just about cost savings; it also includes:
• eliminating the risk of future cryptographic compromise,
• protecting organizational reputation,
• ensuring compliance with upcoming regulations.
For many organizations, the cost of a data breach far outweighs the cost of implementing QKD.
The system is planned to be market-ready by the end of 2026. In the meantime, the following are already available:
• deployment consultations
• pilot projects
• infrastructure preparation
QKD is being deployed in pilot and operational environments by:
• government institutions,
• telecommunications operators,
• financial institutions,
• research organizations.
Detailed case studies are available upon request.
The currently offered system operates in fiber-optic networks.
QKD technologies are also being developed for:
• satellite communication (including our projects with ESA),
• hybrid communication architectures.
Experts agree that the development of quantum computers poses a real threat to current asymmetric encryption algorithms. The exact timeline is uncertain, but the risk is already influencing strategic security decisions today.
Keys generated using QKD are secure:
• today,
• tomorrow,
• and in the future.
There is no known technology that would allow someone to “go back in time” and decrypt a quantum-generated key (if properly stored). For this reason, QKD is often described as providing security “forever.”