Three Party Authentication Using Quantum Key Distribution

A method for use in an electronic transaction verification system, wherein an electronic transaction is between a client subsystem and a merchant subsystem, the method comprising:

• receiving a quantum payment serial number from the client subsystem;
• performing entangled quantum encryption on the received quantum payment serial number to generate an entangled quantum payment serial number;
• obtaining a quantum key shared between the merchant subsystem and the verification subsystem;
• encrypting the entangled quantum payment serial number using the quantum key shared between the merchant subsystem and the verification subsystem;
• transmitting the encrypted entangled quantum payment serial number to the merchant subsystem;
• and
• transmitting the entangled quantum payment serial number to the client subsystem.

A transaction verification subsystem comprising a memory and one or more processors coupled to the memory, the one or more processors operable to:

• receive a quantum payment serial number from a client subsystem;
• perform entangled quantum encryption on the received quantum payment serial number to generate an entangled quantum payment serial number;
• obtain a quantum key shared between a merchant subsystem and the verification subsystem;
• encrypt the entangled quantum payment serial number using the quantum key shared between the merchant subsystem and the verification subsystem;
• transmit the encrypted entangled quantum payment serial number to the merchant subsystem over the network;
• and
• transmit the entangled quantum payment serial number to the client subsystem over the network.