# US 12,192,344 B2 · Systems and methods for providing dynamic quantum cloud security through entangled particle distribution

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- Number: US 12,192,344 B2
- Document ID: US12192344B2
- Status: Granted
- Kind: B2
- Application number: 17/899,133
- Filed: 2022-08-30
- Published: 2024-02-29
- Granted: 2025-01-07
- Earliest claimed: 2022-08-30
- Assignees: Cisco Technology, Inc.
- Applicants: Cisco Technology, Inc.
- Inventors: Santanu Ganguly; D. Brice Achkir
- Web page: https://patentgrep.com/patent/US12192344B2

## CPC

- H04L 9/0852: {Quantum cryptography (transmission systems employing electromagnetic waves other than radio waves, e.g. light, infrared H04B10/00; wavelength-division multiplex systems H04J14/02; WDM arrangements H04J14/03)}
- G06N 10/00: Quantum computing, i.e. information processing based on quantum-mechanical phenomena
- G06N 10/20: Models of quantum computing, e.g. quantum circuits or universal quantum computers
- H04L 63/083: {using passwords (cryptographic mechanisms or cryptographic arrangements for entity authentication using a predetermined code H04L9/3226)}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- G06N: COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS

## Abstract

Disclosed is a method of establishing secure communications between nodes in a cloud environment. The method includes receiving a log-in of a first user, receiving a log-in of a second user and presenting to the first user one or more options to use a secure inter-user communication security service leveraging quantum teleportation in order to communication with the second user, wherein the secure inter-user communication security service optionally uses a quantum EPR processor (QEP). The one or more options include applying the secure inter-user communication security service using QEP to generate EPR Bell state pairs and applying security via quantum teleportation for communications between the first user and the second user and applying the secure inter-user communication security service to securely control communication between a first container associated with the first user and a second container associated with the second user and associated daemons leveraging the QEP.

## Claims

### Claim 1

A method comprising:
receiving a log-in of a first user into a cloud environment using a classical authentication process;
receiving a log-in of a second user in the cloud environment using the classical authentication process;
presenting to the first user one or more options to use a secure inter-user communication security service leveraging quantum teleportation in order to communication with the second user in the cloud environment, wherein the secure inter-user communication security service optionally uses a quantum EPR (Einstein Podolsky and Rosen) processor (QEP), wherein the one or more options comprise:
a first option of applying the secure inter-user communication security service;
a second option of applying the secure inter-user communication security service using QEP to generate EPR Bell state pairs and applying robust additional security via quantum teleportation for communications between the first user and the second user within the cloud environment; and
a third option of applying the secure inter-user communication security service to securely control communication between a first container associated with the first user and a second container associated with the second user and running on the cloud environment and associated daemons leveraging the QEP.

### Claim 2 (depends on 1)

The method of claim 1, wherein the quantum teleportation is implemented using a butterfly topology and applying a separable ancilla qubit.

### Claim 3 (depends on 2)

The method of claim 2, wherein the butterfly topology is applied with a Greenberger Home Zeilinger state entanglement.

### Claim 4 (depends on 3)

The method of claim 3, wherein the butterfly topology is further applied using probabilistic cloning properties of quantum states.

### Claim 5 (depends on 4)

The method of claim 4, wherein applying the robust additional security via quantum teleportation for communications between the first user and the second user within the cloud environment further comprises:
implementing a query process from the first user to the second user for quantum key distribution of a secure key pair generated by the QEP; and
implementing an identify authentication process between the first user and the second user using the secure key pair generated by the QEP.

### Claim 6 (depends on 5)

The method of claim 5, wherein implementing an identify authentication process between the first user and the second user using the secure key pair generated by the QEP further comprises applying a probability value when determining whether a prepared state and a measurement basis associated with the secure key pair are different to verify the second user.

### Claim 7 (depends on 4)

The method of claim 4, applying the robust additional security via quantum teleportation for communications between the first user and the second user within the cloud environment further comprises:
receiving, at a node in a network, a route request from the first user to connect a source node associated with the first user with a destination node associated with the second user;
broadcasting, via at least the node in the network, the route request to other nodes in the network;
performing, at the node and the other nodes in the network, a routing lookup and generating routing tables to establish a path to the source node;
establishing an entangled channel connecting the source node to the destination node; and
teleporting qubit information from the source node to the destination node.

### Claim 8 (depends on 7)

The method of claim 7, wherein the route request comprises an entanglement request to connect a first node associated with the first user to a second node associated with the second user.

### Claim 9

A system comprising:
a processor; and
a computer-readable storage device storing instructions which, when executed by the processor, causes the processor to perform operations comprising:
receiving a log-in of a first user into a cloud environment using a classical authentication process;
receiving a log-in of a second user in the cloud environment using the classical authentication process;
presenting to the first user one or more options to use a secure inter-user communication security service leveraging quantum teleportation in order to communication with the second user in the cloud environment, wherein the secure inter-user communication security service optionally uses a quantum EPR (Einstein Podolsky and Rosen) processor (QEP), wherein the one or more options comprise:
a first option of applying the secure inter-user communication security service;
a second option of applying the secure inter-user communication security service using QEP to generate EPR Bell state pairs and applying robust additional security via quantum teleportation for communications between the first user and the second user within the cloud environment; and
a third option of applying the secure inter-user communication security service to securely control communication between a first container associated with the first user and a second container associated with the second user and running on the cloud environment and associated daemons leveraging the QEP.

### Claim 10 (depends on 9)

The system of claim 9, wherein the quantum teleportation is implemented using a butterfly topology and applying a separable ancilla qubit.

### Claim 11 (depends on 10)

The system of claim 10, wherein the butterfly topology is applied with a Greenberger Home Zeilinger state entanglement.

### Claim 12 (depends on 11)

The system of claim 11, wherein the butterfly topology is further applied using probabilistic cloning properties of quantum states.

### Claim 13 (depends on 12)

The system of claim 12, wherein applying the robust additional security via quantum teleportation for communications between the first user and the second user within the cloud environment further comprises:
implementing a query process from the first user to the second user for quantum key distribution of a secure key pair generated by the QEP; and
implementing an identify authentication process between the first user and the second user using the secure key pair generated by the QEP.

### Claim 14 (depends on 13)

The system of claim 13, wherein implementing an identify authentication process between the first user and the second user using the secure key pair generated by the QEP further comprises applying a probability value when determining whether a prepared state and a measurement basis associated with the secure key pair are different to verify the second user.

### Claim 15 (depends on 12)

The system of claim 12, applying the robust additional security via quantum teleportation for communications between the first user and the second user within the cloud environment further comprises:
receiving, at a node in a network, a route request from the first user to connect a source node associated with the first user with a destination node associated with the second user;
broadcasting, via at least the node in the network, the route request to other nodes in the network;
performing, at the node and the other nodes in the network, a routing lookup and generating routing tables to establish a path to the source node;
establishing an entangled channel connecting the source node to the destination node; and
teleporting qubit information from the source node to the destination node.

### Claim 16 (depends on 15)

The system of claim 15, wherein the route request comprises an entanglement request to connect a first node associated with the first user to a second node associated with the second user.

### Claim 17

A method comprising:
receiving a route request from a first user for establishing an entangled channel between a first node associated with the first user with a second node associated with a second user;
forwarding the route request to a node in a network;
performing, at the node in the network, a routing lookup and generating a routing table associated with the first node to record a path to the first node; and
teleporting qubit information to the source node, wherein the teleporting of qubit information to the source node uses a probabilistic cloning-assisted entanglement distribution of separable states.

### Claim 18 (depends on 17)

The method of claim 17, wherein the method further comprises:
teleporting second qubit information from the first node to the second node.

### Claim 19 (depends on 17)

The method of claim 17, wherein teleporting the qubit information to the source node is further achieved using a butterfly topology, wherein the butterfly topology is boosted with Greenberger-Horne-Zeilinger state entanglement and probabilistic cloning properties of quantum states.

### Claim 20 (depends on 17)

The method of claim 17, wherein the method further comprises:
implementing a query process from the first user to the second user for quantum key distribution of a secure key pair generated by a quantum EPR (Einstein Podolsky and Rosen) processor (QEP); and
implementing an identify authentication process between the first user and the second user using the secure key pair generated by the QEP.
