Jpmorgan Chase Bank, N.a.

Universite De Geneve

Universit&#xc9; De Gen&#xc8;ve

Charles Lim

Marco Pistoia

Hugo Zbinden

Omar Amer

Kaushik Chakraborty

Boris Korzh

Gianluca Boso

Vas Rajan

Saqib Malik

Andrew Lang

Systems and methods for secure cryptographic secret distribution are disclosed. In one embodiment, a method for secure cryptographic secret distribution may include: (1) receiving, at a key relay station, a cryptographic secret from a webserver over a first communication network; (2) storing, by the key relay station, the cryptographic secret; (3) authenticating, by the key relay station, an end user via an end user electronic device; and (4) securely communicating, by the key relay station, the cryptographic secret to the end user electronic device. The end user electronic device is configured to store the cryptographic secret in secure storage on the end user electronic device, to encrypt data with the cryptographic secret, and to communicate the encrypted data to the webserver over a second communication network.

Systems and methods for secure cryptographic secret distribution

The invention relates to a Quantum Key Distribution system comprising a transmitterand a receiverfor exchanging a quantum key via a quantum channelthrough a decoy-state three state protocol wherein the transmitter comprises a transmitter processing unitadapted to use random numbers from a quantum random generator to select a quantum state to encode from different states of intensity and basis, a Pulsed light sourceadapted to generate an optical pulse, a time-bin interferometerthrough which the generated optical pulse passes and which transforms generated optical pulse into two coherent pulses separated by the time bin duration, a single intensity modulatoradapted to change the intensity of the two pulses individually according to the choice made by the transmitter processing unit, and a variable optical attenuatoradapted to reduce the overall signal intensity to the optimum photon number per pulse.

Apparatus and method for decoy-state three-state quantum key distribution

Growing community of inventors

Singapore, Singapore

Charles Lim