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Our Technology


QuintessenceLabs’ data protection solutions integrate unique quantum capabilities to deliver the most trusted level of security today, while preparing for the quantum computing threat of tomorrow. 

Our world-leading high speed quantum random number generators today deliver the assurance of the highest quality keys for all commercial applications, as stand-alone cards or integrated into key management appliances.  And for tomorrow, our continuous variable quantum key distribution will allow you to securely exchange keys, even when quantum computers break
current key exchange protocols.   

Quantum Random Number Generators


Most security applications today use Pseudo-Random Numbers to generate keys. These Pseudo-Random Numbers are generated from a short random seed using deterministic algorithms. Although widely used in modern digital electronic information systems, Pseudo-Random Numbers are not truly unpredictable, and have resulted in many security issues.

True Random Number Generators (TRNG) use random physical processes instead of computational algorithms to generate random numbers.  However some True Random Numbers are much better than others: “True” Random Numbers based on classical deterministic systems can be predicted if enough is known about the system, or if they can be influenced by actions such as temperature changes.

Quantum Random Numbers

True Random Numbers generated using quantum physics techniques, also known as quantum random number generators (QRNG), can be truly random.

Many available quantum random number generators are based on the detection of single photons and have relatively limited throughput. This makes it challenging and expensive to implement them, and may result in operational constraints regarding key rotation or number of keys for example.

QuintessenceLabs uses quantum tunneling to deliver truly random numbers at 1Gbit/s rates, flexible form factors and compelling costs to enable practical, large scale security, modeling and other applications.

Quantum Key Distribution


Key distribution is the process of sharing encryption keys between parties to allow them to encrypt their data.  We typically use public key ciphers, such as RSA, Diffie-Hellman, and ECC, to exchange symmetric keys that can then be used for encryption.

The security of this approach is threatened by weak random number generators, advances to processing power, new attack strategies, and quantum computers. Quantum computers will ultimately render this key exchange strategy, with serious implications for secure communications.  Even now, data encrypted today may well be intercepted and stored for decryption by quantum computers in the future.

Our Technology

Quantum Key Distribution technology is a perfectly secure means of distributing keys, leveraging the laws of physics.  Quantum Key Distribution protects data from increasingly advanced attacks, and in particular from the threat that quantum computers pose to our public key infrastructure.

QuintessenceLabs is at the forefront of the development of Quantum Key Distribution with our second generation qOptica technology. qOptica will all but eliminate the risks of key distribution, because any attempt to intercept the key will leave a detectable trace allowing mitigating action. QuintessenceLabs’ approach delivers high raw key rates, a compact form factor, reduced cost, and importantly is well-suited to free-space implementations for practical deployments.

qOptica is currently at the Advanced Technology Demonstrator stage.

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