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192
results.
Updated on
20/08/2026 [07:55:00]
Results 125 to 150 of 192
Absstract of: AU2024400578A1
Methods and apparatus for generating quantum entanglement detect success of entanglement attempts by monitoring output signals from one or more detectors for heralding patterns indicating that a pair of quantum systems is in an entangled quantum state. In response to detecting a heralding pattern that indicates a successful entanglement attempt a low latency signal is output on one or more signal lines; and a higher latency message is transmitted by a messaging interface. The higher latency message contains information that identifies the pair of quantum systems entangled by the successful entanglement attempt. The pair of quantum systems may be inhibited from participating in further entanglement attempts while further entanglement attempts are performed on other pairs of quantum systems.
Absstract of: US20260163723A1
0000 A communication system according to one aspect of the present disclosure is a communication system including a plurality of communication apparatuses, in which the communication apparatuses each include a key generation unit configured to generate a shared key for performing encrypted communication with another communication apparatus of the plurality of communication apparatuses by using one or more keys shared with the another communication apparatus by one or more key sharing methods, and an application program configured to perform encrypted communication with the another communication apparatus using the shared key.
Absstract of: DE102024004187A1
Die Erfindung betrifft eine Verifikationsbaugruppe (100) zur Verifikation der Sicherheit eines Quantenprotokolls, QKD, umfassend: einen Quantenkanaleingang (110); einen Weiterleitungsquantenkanal (130); einen Quantenkanalausgang (120); einen Anschluss (140) für eine Abhörleitung (140), der dazu vorgesehen ist, an einem öffentlichen Kommunikationskanal angeschlossen zu werden; und einen Kommunikationsanschluss (150) für eine Kommunikationsleitung (150), der dazu vorgesehen ist, mit einer externen Vorrichtung in bidirektionaler Kommunikation verbunden zu werden.
Absstract of: US20260163721A1
0000 The present disclosure relates to methods of networking devices and corresponding network devices, computer programs, and non-transitory computer readable media. Methods can include those for establishing Media Access Control security (MACsec) key agreement (MKA) sessions.
Absstract of: BE1033110A1
La présente invention divulgue un procédé, un dispositif et un support de stockage pour l’échange multipartite d’informations basé sur des états GHZ, appartenant au domaine technique des communications quantiques. Le procédé comprend les étapes suivantes : tout d’abord, un STTP prépare des particules en état GHZ et les distribue ; les utilisateurs appliquent des opérateurs unitaires de type bit, puis renvoient les particules ; le STTP effectue une mesure conjointe et publie les résultats afin d’assister les utilisateurs dans la détermination de l’encodage ; ensuite, après l’échange, les utilisateurs appliquent une seconde fois des opérateurs et renvoient à nouveau les particules ; le STTP procède à une nouvelle mesure conjointe et publie les résultats, permettant aux utilisateurs de déduire les informations en clair des autres parties ; enfin, chaque partie calcule et diffuse une valeur de hachage, et si les valeurs sont cohérentes, l’échange est confirmé comme réussi.
Absstract of: WO2025093378A1
Disclosed is a method for sharing information using a data sharing system comprising a sender node and a receiver node using a noisy quantum channel in accordance with a quantum communication protocol, the method comprising: providing a trained machine learning model, the machine learning model being configured to receive a set of parameters of a given system and noise model in order to predict whether the given system is secure or unsecure for sharing information according to the quantum communication protocol, the set of parameters indicating a level of success of an attack by a third party and a reception success at a receiver node of the given system and being descriptive of the given system; evaluating the set of parameters for the data sharing system for sharing the information; inputting the evaluated set of parameters and the noise model to the machine learning model, thereby receiving a prediction of a security of the data sharing system; aborting the quantum communication protocol if the data sharing system is predicted as being unsecure.
Absstract of: EP4757237A1
An electronic device according to various embodiments may comprise: a main processor for performing an operation in a rich execution environment (REE) and a trusted execution environment (TEE); and a secure processor (223) physically separated from the main processor so as to perform an operation in a secure execution environment (SEE). The main processor may, in performing an electronic signature (sig) and key encapsulation mechanism (KEM) operation: identify a calculation speed when the operation is executed in any one of the TEE or the SEE; and on the basis of the identified calculation speed, differently determine an execution environment in which the sig and KEM operation is performed, and the execution environment comprises the SEE and the TEE.
Absstract of: WO2025061844A1
The present invention relates to a method for creating deep-lying p-n transitions (50, 52, 54a, 54b, 56a, 56b) in a BCD process, and to a single-photon avalanche diode, SPAD, based thereon. The method comprises providing a carrier substrate (10); introducing a first doping substance (20) for forming a first region (22) of the first conduction type in a surface (S) of the carrier substrate (10); introducing a second doping substance (30) for forming a second region (32) of the second conduction type in the surface (S) of the carrier substrate (10), wherein the first region (22) and the second region (32) at last partially overlap; and growing an epitaxial layer (40) on the surface (S) of the carrier substrate (20), wherein the first region (22) and the second region (32) propagate by way of diffusion of the first doping substance (20) and the second doping substance (30) in the epitaxial layer (40), the diffusion behaviour of the first and the second doping substance (20, 30) being selected such that the first and the second doping substance (20, 30) form, by way of diffusion, a p-n transition (50, 52, 54a, 54b, 56a, 56b) lying in the epitaxial layer (40).
Absstract of: KR20260085384A
본 발명은 1차원의 선형적인 데이터 암호화 방식의 한계를 극복하기 위해, 9x9 격자 이미지의 8방향 대칭변환 및 중첩을 통해 추출된 고유의 가중치 균형 노드(Intensity == 2) 16개를 가우스 정수 기반의 3차원 복소수 평면 공간으로 업리프팅하는 기술이다. 64단계의 깊이 레이어에 위상 각도 순으로 순차 적층하여 3D 단일 나선(Single Helix) 궤적을 빌드하고, 대칭 노드 간의 양자 얽힘(Entanglement) 및 복소 파동 중합 간섭 무늬를 스캐닝하여 고집적 암호 키를 스스로 생산한다. 특히, 정/역방향 누적 연쇄 확산과 소수 보폭 치환을 결합하여 단 1비트의 평문 변형도 암호문 전체를 100% 다른 백색 소음(White Noise)으로 뒤섞는 전역적 눈사태 효과를 달성한다. 나아가 복호화 시 비인가자의 침입이나 단 0.1도의 위상 오차 진입이 감지되면 즉각 위상 붕괴(Phase Collapse)를 일으키고, 액티브 가드(Active Guard)가 개입하여 RAM 내 복호화 버퍼 영역을 즉각 제로필(Zero-fill) 소거함으로써 해커의 역공학 분석을 원천 무력화하는 포식자적 능동 방어 기전을 가짐을 특징으로 한다.
Absstract of: EP4472127A1
The invention concerns a method for enhancing the privacy of delegated quantum computations, involving: a client (A) whose aim is to solve a computational problem based on sensitive data and/or using a sensitive algorithm, and a cloud computing service provider (B) who has quantum computing capacities superior to the client (A) and is therefore capable of solving the problem and/or running the client's desired algorithm; wherein the method comprises a sequence including the following steps: a) a light emitter (10) controlled by the client (A) emits at least one pulse (11) having a specific quantum state (S1), b) a quantum emitter (20) controlled by the provider (B) receives the pulse (11), c) the quantum emitter (20) emits a single photon (21) supporting a photonic qubit (Q2), with a relationship being defined between the quantum state (S1) of the pulse (11) and the photonic qubit (Q2). The invention also concerns a system for implementing this method.
Absstract of: KR20260084297A
본 발명은 PQC(Post-Quantum Cryptography) 기술을 활용하여 SMS 메시지 전송 과정에서 기밀성, 무결성, 부인방지 기능을 제공하는 보안 시스템을 제안한다. 기존 SMS 시스템은 메시지가 평문으로 전송되어 기밀성이 부족하고, 송신자와 수신자의 신원을 확인할 수 있는 인증 메커니즘이 부재하며, 양자 컴퓨터 기반의 공격에 취약한 문제가 있었다. 본 발명은 이러한 한계를 극복하기 위해 양자 컴퓨터 환경에서도 안전성을 보장하는 암호화 기술을 도입하였다. 송신자는 수신자의 공개키를 이용하여 메시지를 암호화하고, 자신의 개인키로 메시지의 해시값에 서명하여 부인방지를 구현한다. 수신자는 자신의 개인키로 암호문을 복호화하고, 송신자의 공개키로 서명을 검증하여 메시지의 무결성과 송신자의 신원을 확인할 수 있다. 이를 통해 SMS 전송 과정에서 발생할 수 있는 데이터 도청, 변조, 신원 위조 등의 보안 위협을 방지하며, 특히 Harvest Now, Decrypt Later(현재 저장, 이후 해독) 방식의 공격에 대비할 수 있다. 본 발명은 양자 컴퓨터 시대에도 지속 가능한 높은 수준의 메시지 보안을 제공한다.
Absstract of: US2025148071A1
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.
Absstract of: US20260155994A1
Provided is a secure data processing method and device for performing same. The device includes: a communication circuit; a secure chipset; a memory storing instructions; and a processor configured to execute the instructions to: provide a first secure domain and a second secure domain, and wherein the processor is configured to execute the instructions to: receive a script forwarded from an external entity to the first secure domain through the communication circuit, obtain an authentication certificate and a digital signature of the external entity by parsing the script, cause the secure chipset to verify the authentication certificate by using a first authentication key related to the authentication certificate of the external entity stored in the first secure domain; extract a second authentication key from the authentication certificate; and cause the secure chipset to validate the digital signature by using the second authentication key.
Absstract of: US20260153383A1
0000 A loop interferometer system including a laser, an optical loop, a beam splitter optically coupled to the laser and the optical loop, and a controller configured to control the laser to generate random phase pulses. The optical loop may be configured to receive the random phase pulses from the laser, time delay the random phase pulses, and direct the time delayed random phase pulses to the beam splitter. The beam splitter may be configured to create output optical pulses from an interference pattern between the random phase pulses from the laser and the time delayed random phase pulses from the optical loop.
Absstract of: US20260154602A1
A quantum networking node is provided for use in a modular optical architecture for quantum computing. The quantum networking node includes multiple memory qubits; and one or more communication qubits. The multiple memory qubits and the one or more communication qubits are part of a lattice in an ion trap. Moreover, the memory qubits and the communication qubits are made from a pair of different ion species, each ion species of the pair of different ion species being individually selected from Ba, Ca, Sr, or Mg.
Absstract of: US20260156001A1
Disclosed is a method of operating a certification server of a public key certificatesystem. The method includes receiving a request for issuance of a public key certificate from a terminal, determining a terminal encryption scheme and a certification encryption scheme that are suitable for a public key certificate system, the terminal encryption scheme and the certification encryption scheme being encryption schemes allowed in the public key certificate system, generating a public key of the terminal according to the terminal encryption scheme, generating a public key certificate for verifying the validity of the public key of the terminal according to the certification encryption scheme, and transmitting the public key certificate to the terminal.
Absstract of: US20260154413A1
A method for processing personal information using a smart contract-based trusted execution environment comprises the steps of: generating a trusted execution environment including a data processing code and a second encryption key in a data processing platform server in response to a data processing request according to a smart contract on a blockchain; acquiring first data and a first encryption key from a data generation device and an encryption key supply device; decrypting the first data using the first encryption key; generating a data processing result by processing the decrypted data according to the data processing code; providing the data processing result to the data processing request device; and destroying the trusted execution environment according to the smart contract.
Absstract of: US20260155959A1
0000 Systems, methods, and apparatus are provided for adaptive, quantum-based VoIP security. A biometric voiceprint may be generated from a VoIP communication. In response to failure to authenticate the voiceprint, the sound waves associated with the voiceprint may be selectively neutralized without terminating the VoIP communication. In response to authentication of the voiceprint, a biometric key may be generated based on the voiceprint. A quantum encryption key may be generated and distributed via a quantum channel. A VoIP session key may be generated based on the biometric encryption key and the quantum encryption key and used to encrypt the VoIP communication. An ambient sound associated with the VoIP communication may be isolated. In response to failure to authenticate the ambient sound, the caller may be required to provide an additional form of authentication.
Absstract of: US20260155960A1
0000 A first party quantum trusted executed environment (QTEE) receives a first party initial key from a first party and generates an expanded key; a second party QTEE receives a second party initial key from a second party and generates an expanded key; an untrusted third party controls an untrusted quantum source to distribute an input quantum system to the QTEEs; the first party QTEE encodes the input quantum system into a first quantum system and sends the first quantum system to the untrusted third party; the second party QTEE encodes the input quantum system into a second quantum system and sends the second quantum system to the untrusted third party; the untrusted third party performs an entangling measurement on the quantum systems resulting an entangling measurement outcome and sends to the parties; and the parties generate secret keys using the expanded keys and the entangling measurement outcome.
Absstract of: US20260155961A1
0000 A method may include: a first verifier receiving a request for a claimed position verification from a prover; the first verifier randomly generating a first bitstring and a second bitstring; the first verifier sending the first bitstring and the second bitstring to a second verifier; the first verifier preparing a quantum system and sending the quantum system to the prover; the first verifier sending the first bitstring to the prover; the second verifier sending the second bitstring to the prover such that the first bitstring and the second bitstring arrive at the claimed position at the same time; the first verifier validating a response received from the prover; and the first verifier confirming that the response was received within an expected time window.
Absstract of: US20260155962A1
A method for activating a vehicle feature on demand (FoD) service by an electronic device includes requesting information related to the FoD service from an FoD server. The method further includes receiving information related to the FoD service for a vehicle from the FoD server. The method further includes verifying an electronic signature included in the received information related to the FoD service for the vehicle. The method further includes decrypting information for activating the FoD service included in the received information related to the FoD service for the vehicle. The method further includes activating the FoD service when the electronic signature is successfully verified and the information for activating the FoD service is successfully decrypted. The method further includes transmitting a result of the activated FoD service to the FoD server.
Absstract of: US20260154441A1
0000 A method may include: a first verifier receiving a request for position verification comprising a claimed position from a prover electronic device; the first verifier generating two first bitstrings and sending one of the bitstrings to a second verifier; the prover preparing two entangled quantum systems and sending one of the quantum systems to the first verifier; the first verifier measuring the first quantum system; each of the first verifier and the second verifier sending one of the bitstrings to the prover electronic device so that they arrive at the claimed position at the same time; the prover electronic device measuring the second quantum system and sending responses to the two verifiers with the measurement; the first verifier confirming that the responses were received within an expected time window and are valid.
Absstract of: GB2642294A
System for time transfer between a first and second clock, comprising an entangled photon transmitter 100, a first photon receiver 200 comprising first clock 600, and a second photon receiver 300 comprising second clock 700. Entangled photons are generated and first 114 & second 116 photons are transmitted to the respective receivers 200/300. At the receivers 200/300, respective series of emission timestamps are determined by removing respective time of flight offsets from each detection timestamp. A clock offset between the first 600 and second clock 700 is determined by calculating a cross-correlation between the respective series of emission timestamps, and time is transferred by adjusting either clock by the clock offset. A group clock offset may be determined from an average of a plurality of clock offsets, and the clocks may be adjusted by the group clock offset. The transmitter 100 may be at a satellite. The time of flight offsets may be determined using a synchronisation laser system or a laser ranging beam.
Absstract of: KR20260080368A
복수개의 QKDN SDN 컨트롤러 환경에서 종단간 QKDN 연결 설정 방법 및 장치에 관한 것이다. 본 개시의 일 양상에 따른 복수개의 QKDN SDN 컨트롤러 환경에서 종단간 QKDN 연결을 설정하기 방법은: SDN 오케스트레이터에 의해, 제1 QKD 네트워크의 제1 SDN 컨트롤러에게 QKD-도출 키의 전송을 위한 제1 경로 생성을 요청하고, 제2 QKD 네트워크의 제2 SDN 컨트롤러에게 상기 QKD-도출 키의 전송을 위한 제1 경로 생성을 요청하는 단계; 상기 SDN 오케스트레이터에 의해, 상기 제1 SDN 컨트롤러와 상기 제2 SDN 컨트롤러로부터 각각 상기 제1 경로에 대한 제1 후보 서비스 링크 리스트와 상기 제2 경로에 대한 제2 후보 서비스 링크 리스트를 수신하는 단계; 및 상기 SDN 오케스트레이터에 의해, 종단 간(end-to-end) QKDN 연결을 설정하기 위하여, 제1 SDN 컨트롤러에게 상기 제1 후보 서비스 링크 리스트에서 선택된 제1 서비스 링크의 배치를 요청하기 위해 상기 제1 서비스 링크에 대한 정보를 전송하고, 상기 제2 SDN 컨트롤러에게 상기 제2 후보 서비스 링크 리스트에서 선택된 제2 서비스 링크의 배치를 요청하기 위해 상기 제2 서비스 링크에 대한 정보를 전송하는 단계를 포함할 수 있다.
Nº publicación: JP2026517512A 01/06/2026
Applicant:
ベーテークーアクチェンゲゼルシャフト
Absstract of: EP4472126A1
The present disclosure relates to a quantum-analogue proof-of-work consensus method for use in a blockchain network. The method comprises: receiving a plurality of verification data obtained using a boson sampling experiment associated with a candidate block, from a plurality of different miners of the blockchain network. Each verification data may be associated with a different miner, and wherein each miner performs the boson sampling experiment using at least some information comprised in the candidate block. The method may comprise analysing the received plurality of verification data to determine if a consensus has been achieved; and adding the candidate block to a blockchain associated to the blockchain network when consensus is achieved.
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