With the rise of quantum technologies classical cryptography becomes outdated. Novel quantum computers enable to bypass the existing classical algorithms for data security, posing a task of finding new ways to protect valuable information. In this light, a new field of quantum cryptography has emerged promising to counter the quantum threat with quantum means.

Quantum key distribution (QKD) enables two parties (Alice and Bob) to privately share a secret key. The key can be used to encrypt and decrypt messages. High reliability of QKD is ensured by the fundamental quantum laws. Practical implementations of QKD protocols typically employ light pulses to encode quantum states.

At QMware, we develop a novel quantum noise-protected cryptographic protocol that utilizes state-of-the-art techniques combined with quantum physics and simple and scalable linear optics. We also generalize this approach and develop a hardware-efficient optical scheme that encodes the secret information in a highly complex computational network that cannot be hacked using a high-performance computer. The advantage of such schemes is that the detection of the eavesdropper activity is straightforward.

Data transfer and communication are at the center of the modern digital world. However, without employing quantum technologies, it is impossible to guarantee the security of data transfer. Current security protocols rely on the eavesdropper’s limited computational power and on trust to the security protocol developer.

At QMware, we develop quantum secure protocols that are not based on any computational power assumptions and are provably secure against eavesdropping. The reliable quantum solutions that we develop are secure against currently performed attacks and future attacks with the use of quantum devices.