Alerta

Secure Solid-State Quantum Storage Devices

Resumen de: US20260280860A1

This disclosure describes a system and method for producing and reading a secure solid-state quantum storage device. The system comprises an illumination source and a detection system. The illumination source provides an excitation light to a quantum memory array. The detection system detects an emitted light from the quantum memory array. The emitted light corresponds to a plurality of quantum bits stored in the quantum memory array.

QUANTUM-SECURE DIGITAL CURRENCY

Resumen de: US20260280863A1

A computer-implemented method of quantum-secure (QS) minting and issuing of a digital coin by a central bank using a quantum cloud platform operable to facilitate an issuing authority, the method comprising: issuing a command, from the central bank to the issuing authority, to mint a new digital coin, wherein the command comprises: data indicative of a predetermined value of the digital coin, a unique identifier to be associated with the digital coin, and an identifier indicating which endpoint user of the quantum cloud platform, amongst a plurality of endpoint users, is to be designated as the owner of the digital coin; in response to receiving the command, signing, by the issuing authority, the digital coin with an ownership encryption key, wherein the ownership encryption key is a private key known only to the quantum cloud platform and the owner; subsequent to signing the digital coin with the ownership encryption key, signing, by the issuing authority, the digital coin with an authorising encryption key, wherein the authorising encryption key is a private key known only to the quantum cloud platform and the central bank.

KEY ESTABLISHMENT AND SECURE COMMUNICATIONS BASED ON SATELLITE-CONNECTED ENTROPY SOURCES

Resumen de: US20260280869A1

Systems and techniques for secure communications and distribution of random values, provided via satellite communications, are described. These random values are generated from one or more ground-based entropy sources (e.g., quantum random number generators (QRNGs) at terrestrial locations), and optionally combined with values from satellite-based entropy sources (e.g., QRNGs at non-terrestrial locations). An example method includes: receiving a first random value generated by a first QRNG at a terrestrial location; receiving a second random value and a third random value via at least one satellite communication, each additional random value generated by other QRNGs; and generating a cryptographic key based on the first random value, the second random value, and the third random value. The cryptographic key may be produced by a key derivation function that combines the random values, and the cryptographic key may be used to establish a secure communication session.

PROCESSING APPARATUS, METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM

Resumen de: US20260280903A1

A processing apparatus for which a normal environment and a secured environment are provided, includes a validity check processing unit configured to operate in the normal environment and receive a revocation check request for a public key certificate, a validity management unit configured to operate in the normal environment and output information about validity of a public key certificate corresponding to the received revocation check request, and an inspection unit configured to operate in the secured environment and inspect normality of the validity management unit.

METHOD FOR PROVIDING A FIBER INTERFEROMETER

Resumen de: US20260276366A1

A method for providing a fiber interferometer, starting from components, wherein at least one component has a light-guiding fiber with a free end. The method includes manufacturing the fiber interferometer with a preparing of the components based on mechanical cutting of the fiber with the free end, a connecting of the components through fiber connections based on the cut fiber, and with an applying of a static mechanical tension to at least one fiber connection, so as to approximate a length of the at least one fiber connection to a prescribed value and thus provide the fiber interferometer.

DISTRIBUTED QUANTUM EVALUATION NETWORK

Resumen de: US20260280862A1

A distributed quantum evaluation network for decryption. In some embodiments, the steps comprising: receiving an encrypted string; and initiating a chaincode transaction on a plurality of nodes of a disturbed ledger network (DLN), wherein the chaincode transaction further comprises the encrypted string and computer-readable instructions for quantum decryption at each of the plurality of nodes, the instructions comprising: emitting an event for external computation by calling a quantum computing software development kit (SDK) application programming interface (API), providing the encrypted string to the quantum computing SDK API; receiving a decrypted output generated by the quantum circuit upon completion of the quantum decryption operations, validating the decrypted output among the plurality of nodes using a distributed consensus protocol, storing a validated decrypted output as a new transaction on the DLN, and updating a distributed ledger state across the plurality of nodes to reflect the storing of the validated decrypted output.

Quantum-Resistant Wireless Communications

Resumen de: US20260280864A1

0000 In one implementation, a key management service executed by a device determines cryptographic capabilities of a wireless client and an access point in a wireless network. The key management service selects a post-quantum cryptographic key generation approach for use by the wireless client and the access point based on their cryptographic capabilities. The key management service generates a key exchange policy for the wireless client and the access point that specifies one or more out-of-band paths that differ from a Wi-Fi link between the wireless client and the access point. The key management service causes the wireless client and the access point to perform a key exchange to associate the wireless client with the access point in the wireless network in part by generating keys using the post-quantum cryptographic key generation approach and exchanged via the one or more out-of-band paths specified by the key exchange policy.

RECOGNITION-STATE QUANTUM INFORMATIONAL ENCRYPTION (RSQIE) FOR QUANTUM-RESISTANT SECURE DIGITAL COMMUNICATION AND DATA PROTECTION

Resumen de: US20260280876A1

0000 A recognition-state quantum informational encryption (RSQIE) system and method provide quantum-resistant secure digital communication and data protection. Digital information is encoded into recognition-coherence scalars using a recognition mapping in which a recognition scalar R is computed as R=x/(x+X_opt), where x is a positive parameter associated with a symbol and X_opt is a predetermined constant. One or more quantum states are prepared based on the recognition scalars and encrypted using an encryption transformation derived from a recognition-coupled interaction that depends on message-associated and key-associated recognition operators. A corresponding inverse transformation decrypts the encrypted representation to recover the digital information. In some embodiments, verification includes computing a coherence deviation deltaR=abs(R_expected−R_measured) and triggering a responsive action when deltaR, or a windowed statistic derived from deltaR, exceeds a threshold, thereby providing breach indication in disturbance-sensitive implementations.

Quantum-Enhanced Gen-AI Approach for Optimizing Model Accuracy and Privacy in Secure Collaborative Analytics

Resumen de: US20260280861A1

A system and method for secure collaborative analytics enable multiple parties to perform joint data analysis without exposing sensitive information. The invention integrates quantum computing, advanced cryptographic protocols, and generative artificial intelligence (GenAI) to ensure privacy, accuracy, and efficiency. Private datasets undergo quantum optimization to retain significant features, followed by encryption using quantum-resistant protocols. Encrypted data is securely transmitted and analyzed collaboratively using quantum homomorphic encryption, allowing computations directly on encrypted datasets. GenAI optimizes feature selection, computation workflows, and privacy-accuracy trade-offs, enabling iterative refinement of analytical outputs. Results are decrypted securely using quantum key authentication and validated against predefined benchmarks. The system employs differential privacy to protect individual records while preserving data utility and supports a blockchain-like ledger for immutable audit trails. Scalable, adaptable, and compatible with diverse data types, this invention addresses the evolving demands of secure, efficient, and collaborative analytics across various domains.

Hochintegrierter Empfänger für Quantenschlüsselaustausch

Resumen de: DE102025109510A1

Die vorliegende Erfindung betrifft eine Vorrichtung zur Analyse eines quantenmechanischen Zustands einzelner Photonen, die in einem Eingangsstrahl in die Vorrichtung gelangen, wobei die Vorrichtung ein optisches Strahlaufteilungselement, das eingerichtet ist, den Eingangsstrahl in mehrere Analysestrahlen aufzuteilen, eine Mehrzahl von Zustandsprojektoren, die eingerichtet sind, den quantenmechanischen Zustand der einzelnen Photonen auf einen jeweiligen Analysezustand zu projizieren, wobei jedem Analysestrahl ein Zustandsprojektor zugeordnet ist, und eine Mehrzahl von Einzelphotonendetektoren zur Detektion der einzelnen Photonen, wobei jedem Analysestrahl ein Einzelphotonendetektor zugeordnet ist, aufweist, wobei benachbarte Einzelphotonendetektoren einen Abstand von höchstens 5 mm, bevorzugt von höchstens 1 mm, weiter bevorzugt zwischen etwa 50 µm und etwa 150 µm, noch weiter bevorzugt von etwa 100 µm aufweisen.

PROBABILISTIC BITS AND CIRCUITS USING PERIMETER-GATED SINGLE PHOTON AVALANCHE DIODES

Resumen de: WO2026188066A2

A perimeter gated single-photon avalanche diode operates a probabilistic bit device through modulation of the gate voltage to tune the dark count rate. The presence or absence of an avalanche event during a sampling interval are equivalent to a first and second logical state, similar to traditional computing bits. By modulating the gate voltage, the probability distribution of the logical states becomes sigmoidal. Multiple probabilistic bit devices can be interconnected through a weighted network to create a system useful for probabilistic computing.

Advanced Cryptographic Encoding System for Secure Digital Communication and Data Protection

Resumen de: US20260270243A1

0000 This invention provides an alternative cryptographic encoding system to enhance digital security and data protection. It employs a structured encoding transformation process, ensuring protection against AI, quantum computing, and unauthorized access attempts. The system applies multi-layer security principles and configurable encryption adaptability across multiple industries. The encoding methodology is dynamically adjustable, maintaining security resilience without reliance on static encryption keys.

COMMUNICATION SYSTEM, COMMUNICATION APPARATUS, METHOD, AND PROGRAM

Resumen de: US20260270049A1

A communication system according to one aspect of the present disclosure is a communication system that includes a plurality of communication apparatuses, wherein each of the communication apparatuses includes an application program configured to perform encrypted communication with another communication apparatus; and a switching unit configured to switch a key sharing scheme for generating a shared key to be used for the encrypted communication, and the switching unit is configured to switch to another key sharing scheme when the shared key cannot be generated by the key sharing scheme being used at present.

Associate Lattice Based Cryptography Construction per Confidentiality Category of Data to Ensure Quantum Resistance

Resumen de: US20260270061A1

0000 A system and method for securing financial transactions using lattice-based cryptography, dynamic encryption selection, adaptive security validation, and authenticated access control are disclosed. The system classifies transaction risk using machine learning, selecting encryption based on security level, including legacy encryption, hybrid encryption, or lattice-based quantum-resistant encryption. Dynamic lattice parameter selection enhances encryption resilience, while quantum attack simulations validate security. Blockchain-based authentication, geo-fencing, and multi-factor digital signature verification control external access. Homomorphic encryption allows computations on encrypted data without decryption. Secure storage enforces access policies, and transport layer security protects transmitted data. The system continuously adapts encryption and authentication based on evolving threats, ensuring quantum-resistant, future-proof financial data protection. The invention enhances security by integrating artificial intelligence, quantum security validation, and decentralized authentication, preventing unauthorized access and ensuring regulatory compliance while enabling secure financial operations.

Global Quantum-Secured Financial Infrastructure with AI-Enhanced Credit Card Management, Multi-Dimensional Risk Control, Decentralized Compliance Mechanisms, and Human-Machine Interactive Communication

Resumen de: US20260270052A1

A global financial infrastructure is disclosed which integrates quantum-secured systems, artificial intelligence (AI), and blockchain-based decentralized governance to create a new paradigm for credit management and digital economies. The system utilizes quantum key distribution (QKD) and quantum random number generation (QRNG) for fundamentally secure transactions and identity verification. An AI engine performs real-time credit risk assessment and calculates a Behavior Economic Index (BEI) to enable a new class of dynamic, behavior-based financial products. Governance is achieved through a decentralized autonomous organization (DAO) with token-based profit sharing and compliance mechanisms managed by smart contracts. The system is architected for infinite scalability and is intended for commercial deployment through the ATMS. com global platform by a corporate entity, ATMSpac, Inc., providing a comprehensive, vertically integrated model for a new global digital economy with a clear path to public markets.

Verification of Data of an Authentication and Key-Agreement Protocol Process

Resumen de: US20260270088A1

Various embodiments of the teachings herein include a verification unit. An example includes: a capture unit to capture an authentication and key agreement protocol sequence; a generation unit to derive data associated with the sequence from the sequence by including a notarization guideline; and an authentication unit to protect the integrity of the data by forming integrity-protected data. The authentication unit comprises a signature unit to deliver the integrity-protected data in signed form using: a post-quantum secure signature method or a post-quantum secure key encapsulation mechanism or a classical cryptographic digital signature method. The system includes a delivery unit to deliver the integrity-protected data.

COMMUNICATION SYSTEM, COMMUNICATION APPARATUS, METHOD, AND PROGRAM

Resumen de: US20260270053A1

A communication system according to one aspect of the present disclosure includes a plurality of communication devices, wherein the communication device includes: a key generation unit configured to generate a shared key for performing encrypted communication with another communication device and second identification information for identifying the shared key, by using one or more keys shared with the another communication device by one or more key sharing methods and first identification information for identifying each of the one or more keys; a verification unit configured to verify whether or not a shared key identified by the second identification information is same as a shared key of the another communication device; and an encrypted communication unit configured to perform encrypted communication with the another communication device by using the shared key when it is verified that the shared key identified by the second identification information is the same as the shared key of the another communication device.

CLASSICAL CRYPTOGRAPHY AND POST-QUANTUM CRYPTOGRAPHY AUTHENTICATION FOR VEHICLE-TO-EVERYTHING (V2X) COMMUNICATION

Resumen de: US20260270054A1

0000 Disclosed are systems, apparatuses, processes, and computer-readable media for classical cryptography and post-quantum cryptography (PQC) protection for V2X communication. For example, an apparatus includes a processor and a memory coupled to the processor. The processor is configured to: generate a first message of a first type; generate a first authentication code for the first message with a first type of authentication key based on the first message being of the first type; generate a second message of a second type; and generate a second authentication code for the second message with a second type of authentication key based on the second message being of the second type, wherein the second type of authentication key is based on PQC.

SILENT-INTERCEPTION DETECTION AND TRUST ESTABLISHMENT IN COMMUNICATION CHANNELS

Resumen de: US20260269953A1

0000 An example quantum communication system configured for silent-interception detection includes a photon source, a modulation subsystem, a receiver, a trust evaluation engine, and a reconfiguration controllers. The photon source is configured to generate photons. The modulation subsystem is configured to encode the photons across: at least two quantum state dimensions, multiple spatial emission points on a structured geometry, and discrete time bins. The receiver is configured to measure quantum state properties, spatial emission positions, and temporal alignment. The trust evaluation engine is configured to compute a composite interception score based on cross-dimensional disturbance metrics. The reconfiguration controller is configured to modify transmission parameters responsive to the composite interception score.

GROUP KEY SHARING

Resumen de: US20260270046A1

A method for generating a group key for a group of endpoint devices in a communication system that includes the group of endpoint devices and an intermediary device (ID)communicatively lined to each of the endpoint devices by a respective quantum communication channel and a respective classical communication channel, the method includes agreeing, between the ID and each of the endpoint devices, a respective QKD key, Kn, over the corresponding quantum communication channel; determining a group key for secure communication within the group of endpoint devices; sending respective group key information from the ID to each of the endpoint devices over the corresponding classical communication channel; and deriving, by each of the endpoint devices, the identity of the group key the respective group key information includes information useable by the corresponding endpoint device to derive the identity of the group key, said information being encrypted with the respective agreed QKD key.

TRUE QUANTUM RANDOM NUMBER GENERATOR

Resumen de: NL2036178B1

0001 ABSTRACT A photonic integrated system (100) for generating random numbers, comprising a non- coherent light source (112) and a light scattering medium (116) configured to receive light from the non-coherent light source (112) and output scattered light to be processed together with non-scattered light from the light source (1 12) to produce light signals for generating the random numbers. The light scattering medium is configured to scatter light received from a first light splitter to obtain scattered light and to output the scattered light to a second light splitter. +Fig. 1

EXECUTING DIGITAL SIGNATURE OPERATIONS IN A SECURE ELEMENT PLATFORM RUNTIME ENVIRONMENT

Resumen de: US20250148071A1

0000 A system performs a set of cryptographic operations at least by utilizing an API to cause execution of a set of one or more secure element (SE) applications within the SE platform runtime environment of a first computing entity. The set of cryptographic operations include generating a first shared secret, generating a ciphertext at least by encapsulating the first shared secret with a first public key associated with a second computing entity in accordance with an encapsulation algorithm, and transmitting the ciphertext from the first computing entity to the second computing entity. The second computing entity derives the first shared secret by decapsulating the ciphertext with a private key corresponding to the first public key. The first computing entity and the second computing entity then exchange at least one encrypted message, encrypted with an encryption key that includes, or is based at least in part on, the first shared secret.

QUANTUM KEY DISTRIBUTION (QKD) RECEIVING DEVICE AND METHOD

Resumen de: EP4804456A1

0001 A quantum key distribution (QKD) receiving device includes N input ports connected to N transmission lines, respectively, the N transmission lines being relevant to a specific QKD link and respectively transmitting N divided optical signals obtained by division of an optical signal in a QKD transmission device and being connected to the QKD transmission device, a QKD receiving unit that performs at least quantum key distillation processing, a switch that switches a connection line connected to the QKD receiving unit via one of the input ports, among the N transmission lines, and a control unit that selects a switching destination line of the connection line from at least one transmission line excluding a first transmission line among the N transmission lines in a case where the first transmission line among the N transmission lines is the connection line and a communication failure of the first transmission line has occurred.

엔트로피 요구 사항이 감소된 양자 키 분배 시스템 및 방법

Resumen de: EP4568170A1

The present invention relates to a Quantum Key Distribution System comprising an emitter and a receiver adapted to communicate, wherein the emitter comprises an optical pulse source adapted to generate an optical pulse to be sent to the receiver, and at least one random bit generator adapted to set a bit value, a basis value and an intensity value of said optical pulse, wherein said at least one random bit generator comprises a bit value source adapted to generate full entropy to set said bit value of said optical pulse, a basis value source and an intensity value source, characterized in that said basis value source and said intensity value source are adapted to process entropy with expanded randomness to set said basis and said intensity of said optical pulse.

양자 암호에서의 광자 검출

Nº publicación: KR20260134309A 08/09/2026

Solicitante:

아이디퀀티크에스에이

Resumen de: EP4575427A1

The present invention relates to Superconducting Nanowire Photon Detector comprising a substrate, and a plurality of pixels provided on said substrate, wherein the pixels are separated from each other by a first linear distance, and characterized in that said substrate presents a concave surface profile between two pixels to present a length greater than said first linear distance.