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利用量子纠缠分发来生成可验证私有随机性

Resumen de: US2025131317A1

0000 A system and method for providing quantum entanglement-as-a-service and simultaneously producing verifiably random sequences of numbers are described. When distributing quantum entanglement between customers Alice and Bob, Alice and Bob may exchange information pertaining to a measurement basis that they respectively used when performing measurements using respective halves of entangled particles. When customer Alice, for example, determines that both Alice and Bob have performed a given measurement in a same measurement basis, said result may be used in a quantum key distribution (QKD) code. When customer Alice determines that they have not performed the given measurement in the same measurement basis, Alice may concatenate said portion of the results into a private and verifiable sequence of random numbers. Providing distributed quantum entanglement therefore results in both a QKD code between said customers and in respective private and verifiably random sequences of numbers.

DERIVED UNIQUE KEY PER HASH ENCAPSULATED ENCRYPTED TRANSACTION (DUKPHEET)

Resumen de: US20260142830A1

0000 The arrangements disclosed herein relate to generating, by a first server, a first seed using a Hash-Based Message Authentication Code (HMAC) based at least in part on a Hash Key (HK), providing, by the first server to each of a first device and a second device, the first seed, providing, by a second server to each of the first device or the second device, a second seed. The second seed is based at least in part on a stream of photons. Each of the first device or the second device generates a Derived Key (DK) based at least in part on the first seed and the second seed. Each of the first device or the second device generates a first key based at least in part on the DK and a first random number generated by a Quantum Random Number Generator (QRNG). The first device encrypts first data using the first key to obtain first ciphertext and provides the first ciphertext to the second device. The second device derives the first key and decrypts the first ciphertext using the first key.

IDENTITY AUTHENTICATION METHOD AND SYSTEM

Resumen de: WO2026103126A1

The present application relates to an identity authentication method and system. The method comprises: a claimant determining an asymmetric digital signature algorithm and a post-quantum digital signature algorithm; generating an algorithm identifier corresponding to the asymmetric digital signature algorithm and the post-quantum digital signature algorithm; acquiring a time-varying parameter, and generating signature data on the basis of the time-varying parameter and an identifier of a verifier; using the asymmetric digital signature algorithm to perform signing on the signature data, so as to obtain a first signature; using the post-quantum digital signature algorithm to perform signing on the signature data, so as to obtain a second signature; on the basis of the algorithm identifier, the signature data, the first signature and the second signature, generating an identity authentication string; and sending the identity authentication string to the verifier, so as to instruct the verifier to perform identity authentication on the basis of the authentication string. On the basis of conventional asymmetric cryptographic identity authentication, the method introduces a post-quantum digital signature algorithm capable of resisting quantum computation, thereby enhancing the security of two communicating parties during identity authentication and being able to resist quantum threats to a certain extent.

METHOD APPARATUS SYSTEM AND COMPUTER PROGRAM FOR ROUTING QUANTUM KEY

Resumen de: KR20260073135A

0001a 본 발명은 양자키 라우팅 방법, 장치 및 컴퓨터 프로그램에 대한 것으로서, 보다 구체적으로 본 발명에서는, 컴퓨팅 장치를 이용하여, 시작 노드, 중간 노드 및 상기 시작 노드와 인접하지 않는 목적 노드를 포함하는 복수의 노드와 상기 노드를 연결하는 복수의 링크를 포함하여 구성되는 양자 암호 통신 네트워크에서 양자키 중계 경로를 라우팅하는 방법으로서, 미리 정해진 하나 이상의 척도를 기초로 아래의 후보 경로 중 하나 이상을 산출하는 단계; (i) 상기 시작 노드로부터 상기 목적 노드 방향으로 상기 노드를 연결하는 하나 이상의 링크가 순차적으로 선택되어 산출되는 정방향 후보 경로, (ii) 상기 목적 노드로부터 상기 시작 노드 방향으로 상기 노드를 연결하는 하나 이상의 링크가 순차적으로 선택되어 산출되는 역방향 후보 경로, (iii) 상기 중간 노드 또는 상기 중간 노드와 연결되는 링크 중 하나로부터, 상기 시작 노드 방향으로 하나 이상의 링크가 순차적으로 선택되고, 또한 상기 목적 노드 방향으로 하나 이상의 링크가 순차적으로 선택되어 산출되는 양방향 후보 경로, 및 상기 산출된 하나 이상의 후보 경로를 이용하여 상기 시작 노드와 상기 목적 노드에 대한 양자키 중계 경로를 도출하는 단계를 포함�

QUANTUM SECURE COMMUNICATION PROTOCOL AND DEVICE BASED ON DOUBLE-HELIX STRUCTURE COMPOSITE MULTI-LAYER ENCODING

Resumen de: WO2026106645A1

A method for secure quantum communication includes generating a photon. The method includes modulating at least two quantum state dimensions selected from the group consisting of orbital angular momentum (OAM), polarization, and phase of the photon to form a composite quantum state. The method includes directing the photon to an emission point on a helical structure having a defined spatial coordinate corresponding to classical data. The method includes emitting the photon from the emission point into a quantum channel. The composite quantum state and spatial coordinate together encode secure information.

REVEALING UNIT, COMPUTING SYSTEM AND METHOD FOR REVEALING BLINDING ATTACKS

Resumen de: EP4746337A1

A revealing unit (100) for revealing a blinding attack in a computing system (102), preferably in a Quantum Key Distribution system, is described. The revealing unit (100) comprising a revealing nanowire (104); wherein the revealing unit (100) is configured, in the event of a blinding attack, to change from a secure state to a reveal state by changing an electrical characteristic of the revealing nanowire (100) to reveal the blinding attack.

양자 키 분배에서의 초기 지연 시간 단축

Resumen de: EP4510498A1

0001 The present invention relates to a QKD communication method between an emitter and a receiver comprising the steps of distilling a secret key through a Privacy Amplification characterized in that the PA size is variable so as to ramp up from a first lower value to an end greater value.

基于嵌入式量子随机数生成器的光学装置

Resumen de: EP4745755A1

Systems and methods are provided for implementing and utilizing embedded quantum random number generator (QRNG) based devices. An optical device configured for use in quantum random number generation may have an integrated structure that includes, at least, an optical source configured to emit a light beam, a photodetector configured to detect light based on detection criteria, and a polarizer disposed between the optical source and the photodetector. The optical source, the photodetector, and the polarizer are directly integrated or embedded into the integrated structure. The polarizer is configured to process light based on polarization criteria that include passing or discarding light having a particular polarization. The optical device is configured for use in facilitating or enabling quantum random number generation based on detection of the light beam by the photodetector based on the detection criteria.

SYSTEM AND METHOD FOR PREDICTION AND MITIGATION OF A RISK EVENT

Resumen de: US20260134372A1

0000 A system for predicting and mitigating risk events is disclosed. The system includes data acquisition devices that collect first and second data sets associated with a geographical location and transmit them to a risk event mitigation server device. The risk event mitigation server device executes a dynamic threat mitigation module to generate weighted risk indicators, analyze their convergence and divergence, and compute a first risk score. A continuous automated red teaming module simulates risk events using artificial intelligence, while a machine learning adaptation module refines the score using real and simulated data to produce a second risk score. An orchestrator integrates outputs to generate mitigation recommendations, secured by a post-quantum encryption framework. A user device displays the updated risk score and recommendations and provides feedback. A recursive feedback loop continuously adjusts indicator weights based on user actions and new data, enabling adaptive, real-time risk assessment and mitigation.

FOUNDRY-FABRICATED SOURCES OF BROADBAND ENTANGLEMENT

Resumen de: US20260133467A1

Photonic integrated circuit(s) (PIC(s)), quantum transmitter(s) and quantum network(s) are provided. Polarization entangled photons, frequency entangled photons and/or polarization-frequency hyperentangled photons may be distributed from a quantum transmitter having one or more PICs. The PIC(s) may be capable of producing one, two or four polarization-entangled Bell State(s).

DERIVED UNIQUE KEY ATTRIBUTE-BASED TRANSLATIONS (DUKAT)

Resumen de: US20260135839A1

0000 The arrangements disclosed herein relate to receiving, by a key management node, a first encrypted message element which is encrypted using a first symmetric key established between the key management node and a first node, decrypting, by the key management node, the first encrypted message element using the first symmetric key to obtain a first message element of a message, encrypting, by the key management node, the first message element using a second symmetric key established between the key management node and a second node to obtain a second encrypted message element, and sending, by the key management node, the second encrypted message element.

Autonomous Quantum-Secure Mesh Networking System

Resumen de: US20260135840A1

0000 The present disclosure provides an autonomous quantum-secure mesh networking system comprising a server including a memory and a processor operatively coupled to the memory. The processor receives communication data from at least one computing device for secure transmission across a communication network, generates a symmetric quantum encryption key using a quantum key distribution process, derives a quantum identity-bound key material by combining the symmetric quantum encryption key with a quantum identity root for authenticating communication endpoints, evaluates a trust score of each available transmission path using a trust model to select a secure transmission path, encrypts communication data and associated session metadata using the symmetric quantum encryption key, records an identifier of each encrypted packet and at least one trust-related parameter of the secure transmission path on a blockchain-based distributed ledger and transmits the encrypted communication data across the selected secure transmission path.

OPTICAL PATH MONITORING APPARATUS AND PROCESS

Resumen de: US20260135617A1

0000 An optical path monitoring process, including the following steps executed by a first node of an optical network: (i) generating photons that are at least partially indistinguishable in frequency, polarization, spatial mode and temporal profile; (ii) transmitting a first photon of the generated photons to a remote node of the optical network over an optical path; (iii) receiving the first photon from the remote node over an optical path; and (iv) interfering the received first photon with a second photon of the generated photons to generate a quantum interference visibility output; and (v) assessing physical integrity of the optical path(s) on the basis of the quantum interference visibility output.

DRONE ELECTRONIC MESH FOR ONLINE NETWORK SERVICES (DEMONS) IMPLEMENTING CRYPTOGRAPHIC OPERATIONS

Resumen de: US20260135915A1

0000 The arrangements disclosed herein relate to systems, apparatus, methods, and non-transitory computer readable media for a network of plurality of roving cryptography devices. Each of the plurality of roving cryptography devices includes a locomotion system configured to move each of the plurality of roving cryptography devices to a respective one of a plurality of locations of the plurality of roving cryptography devices, a network interface circuit configured to provide wireless communication services to a user device of a plurality of user devices through a network of the plurality of roving cryptography devices, and a cryptography service system configured to provide cryptographic material to the user device. The plurality of roving cryptography devices at the plurality of locations form the network for providing the wireless communication services and the cryptographic materials to the plurality of user devices.

SYSTEMS AND METHODS FOR SECURE UTILIZATION OF QUICK RESPONSE CODES

Resumen de: US20260134246A1

0000 Systems, apparatuses, methods, and computer program products are disclosed for secure utilization of quick response (QR) codes. An example method includes obtaining a key known to an initiating device and a participating device, and receiving, by the communications hardware of the participating device, an indication of a secure character string extracted from a QR code. The example method further includes verifying, by security circuitry of the participating device and using the key, authenticity of the QR code, and performing by the participating device, an action set.

ARIA APPARATUS AND METHOD FOR GENERATING QUANTUM CIRCUIT FOR ARIA SUBSTITUTION LAYER

Resumen de: US20260019233A1

0000 Disclosed herein is an apparatus and method for generating a quantum circuit for an ARIA substitution layer. The apparatus may configure a multiplicative inverse operation quantum circuit by arranging a preconfigured multiplicative inverse operation quantum circuit, configure four types of S-box operation quantum circuits including S<1 >and S<2 >operation quantum circuits, which perform two substitution operations used in ARIA by arranging a quantum circuit for performing affine transform and a quantum circuit for addition of a constant value in the multiplicative inverse operation quantum circuit, and S<1>−1 and S<2>−1 operation quantum circuits, which perform inverse substitution operations, and construct the ARIA algorithm as a quantum circuit by rearranging the four types of S-box operation quantum circuits for two substitution layers.

QUANTUM RESISTANT DIGITAL SIGNATURE CRYPTOGRAPHY

Resumen de: EP4742586A1

0001 Computer-implemented methods and systems are provided for securing digital signatures on a computational network to protect against unauthorised access, for example, by a quantum computer or similar system.

PHOTON DETECTING DEVICE

Resumen de: EP4741780A1

0001 Die Erfindung betrifft eine Photonendetektionsvorrichtung 1 zur Detektion einzelner Photonen und Ausgabe eines Detektionssignals D, die Photonendetektionsvorrichtung 1 umfassend ein Gehäuse 2, 2' mit einem Gehäuseinnenraum 20, 20', in dem eine Einzelphotonendiode 3, 3', 3" und ein aktives Kühlelement 4, 4' angeordnet sind, wobei ein Kühlkörper 21, 21' zum Ableiten von Abwärme des Kühlelementes 4, 4'vorgesehen ist, wobei die Einzelphotonendiode 3, 3', 3" an einer ersten Seite des aktiven Kühlelements (40) angeordnet und der Kühlkörper 21, 21' an einer zweiten Seite des aktiven Kühlelements 41 angeordnet ist, und das Gehäuse 2, 2' ein optisches Eintrittselement 5, 5',aufweist, das zum Durchlassen eines ausgehend von der Umgebung der Photonendetektionsvorrichtung 1 auf das Eintrittselement 5, 5' auftreffenden Photons in den Gehäuseinnenraum 20, 20' ausgebildet ist, wobei die Photonendetektionsvorrichtung 1 eine an die Einzelphotonendiode 3, 3', 3" angeschlossene Vorverarbeitungseinheit 6, 6', 6" zur Umwandlung eines von der Einzelphotonendiode 3, 3', 3" ausgegebenen analogen Signals in ein Zwischensignal und eine an die Vorverarbeitungseinheit 6 angeschlossene Auswerteeinheit 7 zur Erzeugung des Detektionssignals D aus dem Zwischensignal der Vorverarbeitungseinheit 6 umfasst. Die Vorverarbeitungseinheit 6 und die Auswerteeinheit 7 sind in dem Gehäuseinnenraum 20, 20' der Photonendetektionsvorrichtung (1) angeordnet.

METHOD AND APPARATUS FOR SELECTIVELY PROTECTING NETWORK SLICE IDENTIFIER BASED ON QUANTUM SECURITY

Resumen de: KR20260064426A

0001a 본 개시는 무선 통신 시스템에 관한 것으로서, 보다 구체적으로는 양자 보안에 기반하여 선택적으로 네트워크 슬라이스 식별자를 보호하는 방법 및 장치에 관한 것이다. 구체적으로, 본 개시는 네트워크 슬라이스 식별자가 상기 네트워크 슬라이스 식별자에 대해 PQC(Post Quantum Cryptography) 기반 암호화가 수행됨을 지시하는 제1 정보를 포함하는지 여부를 식별하는 단계; 상기 네트워크 슬라이스 식별자가 상기 제1 정보를 포함하는 경우, 상기 네트워크 슬라이스 식별자에 대해 상기 PQC 기반 암호화를 수행하여 보호된 네트워크 슬라이스 식별자를 획득하는 단계; 및 상기 보호된 네트워크 슬라이스 식별자를 포함하는 메시지를 네트워크 엔티티로 전송하는 단계를 포함하는 방법 및 이를 위한 장치에 관한 것이다. 본 개시에 따르면, 네트워크 슬라이스 식별자를 양자 컴퓨터를 이용한 공격으로부터 효과적으로 보호할 수 있다.

SECURE NON-TERRESTRIAL NETWORK LINKS UTILIZING QUANTUM KEY DISTRIBUTION INTEGRATED INTO A METASURFACE TRANSCODER NODE WITH HARDWARE POLARIZATION CONTROL

Resumen de: US20260128868A1

0000 The technology described herein enhances the security of non-terrestrial network links by integrating quantum key distribution into an optically transparent metasurface transcoder node with hardware-based polarization control. The metasurface, composed of unit cells of metal-insulator transition material (such as vanadium dioxide, vanadium trioxide, or vanadium pentoxide) leverages the dynamic tunability of the metal-insulator transition material to manipulate the polarization and phase of photons, as needed for quantum key distribution protocols. Hardware level integration ensures secure key distribution with minimal signal loss, enhancing the robustness and security of satellite-terrestrial communication. The system dynamically adjusts to environmental conditions, optimizing performance and ensuring high fidelity in quantum key exchange, thereby providing a robust solution for secure communication in non-terrestrial networks. The transcoder's use of quantum key distribution allows for real-time detection of eavesdropping attempts, as interception of the quantum key exchange alters the photons'quantum states, alerting the system to potential security breaches.

AGENTLESS SINGLE SIGN-ON TECHNIQUES

Resumen de: US20260128863A1

Described herein are methods, systems, and computer-readable storage media for using a network identity. Techniques may include obtaining and encrypting a first data element using an encryption key and storing the encrypted first data element mapped to a network identity. Techniques may further include receiving a request from the network identity to perform an action on a resource and authenticating the network identity using an existing protocol, decrypting the first data element using a second data element calculated based on standard fields of the existing protocol, and enabling the action on the resource using the first data element.

METHOD AND SYSTEM FOR SECURELY REPORTING AND STORING COMPUTER SECURITY PROFILES

Resumen de: US20260128871A1

0000 A method for secure storage of cybersecurity data in a blockchain includes: identifying, by a processor of a processing server, a device profile for a computing device; encrypting, by the processor of the processing server, the device profile into an encrypted device profile using a public key of a first cryptographic key pair; encrypting, by the processor of the processing server, the encrypted device profile into a converted device profile via quantum cryptography using a first configuration key; and transmitting, by a transmitter of the processing server, the converted device profile to a blockchain node in a blockchain network.

System and method for encrypting and securing stored sensitive data based on the quantum echo effect

Resumen de: US20260128872A1

A system includes a quantum memory configured to store sensitive data to be transmitted to a quantum computing device over an optical communication channel and a quantum processor operably coupled to the quantum memory and configured to generate pairs of entangled quantum bits (QuBits), and further encode each pair of the pairs of entangled QuBits based on the sensitive data. The pairs of entangled QuBits include the sensitive data. The quantum processor is further configured to store the pairs of entangled QuBits to a predetermined quantum storage medium configured to maintain a state of each pair of the pairs of entangled QuBits, identify, based on a change in state associated with one Qubit of a pair of the pairs of entangled QuBits, an unauthorized measurement of the pairs of entangled QuBits, and in response to identifying the unauthorized measurement, cause the pairs of entangled QuBits to be rendered unreadable.

SYSTEM FOR TRANSMITTING AN ENCRYPTED MESSAGE VIA QUANTUM CHANNEL AND RELATED METHOD

Nº publicación: US20260128870A1 07/05/2026

Solicitante:

BERTACCINI MASSIMO [IT]
Bertaccini Massimo

Resumen de: US20260128870A1

A system for transmitting an encrypted message via a quantum channel and a related method is described which uses a quantum key sharing algorithm designed to enable proper (secure and fast) communication between a transmitting station (not shown) and a receiving station (not shown).