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184
results.
Updated on
15/07/2026 [08:24:00]
Results 50 to 75 of 184
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: 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: 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: 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: 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: 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: 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: 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.
Absstract of: CN122119900A
0001 本发明属于后量子密码学技术领域，具体为一种基于素阶数域的高效后量子数字签名方法。本发明包括：基于Fiat‑Shamir with Aborts范式构造的密钥生成、签名、验证，其底层代数结构为具有高安全性、素数阶、大Galois群和惰性模数特点的素阶数域；其中用到高效素阶数域多项式求积方法，包含素阶数域NTT多项式求积方法、素阶数域小多项式求积方法，还用到高效无分支常数时间实现方法，包含无分支模约减方法、无分支高低位分解方法；本发明能够抵抗针对分圆环的密码攻击，具有更高鲁棒的安全性：克服现有基于素阶数域的密码方案实现效率差的缺陷，实现兼顾高效性与安全性的格签名。
Absstract of: CN122119792A
0001 本发明属于太赫兹通信技术领域，具体为一种用于光子辅助太赫兹通信系统的混合经典‑量子神经网络符号恢复方法。本发明首先对接收信号进行预处理，得到待恢复的符号序列；随后构建经典神经网络‑量子神经网络混合模型，其中经典神经网络用于对输入符号序列进行特征提取与降维，量子神经网络用于对经过经典神经网络后的特征向量进行量子态编码、参数化量子电路和量子态测量，输出层用于生成符号类别概率并完成符号判决。通过对不同量子编码方式、量子比特数及量子电路结构进行训练与优化，确定最优模型配置。与现有技术相比，本发明计算复杂度低、符号恢复性能好和工程实现性强，能够有效提升光子辅助太赫兹通信系统中的符号恢复能力。
Absstract of: CN122119870A
本申请涉及文档处理技术领域，尤其是涉及到一种开放版式文档电子签章方法、装置、介质和设备。所述方法包括：制章者使用制章者后量子密码算法私钥对印章信息进行数字签名，并根据制章者的制章者证书生成安全电子印章，以将安全电子印章发送至签章者；签章者根据接收的安全电子印章与待签章的开放版式文档，生成签章信息；签章者使用签章者后量子密码算法私钥对签章信息进行数字签名，并根据签章者证书生成安全电子签章数据；签章者将安全电子签章数据嵌入待签章的开放版式文档，生成签章后的开放版式文档。本申请采用后量子密码算法签署开放版式文档，从根本上消除了因依赖SM2等易受量子计算攻击的传统算法所带来的长期安全风险。
Absstract of: CN122119901A
0001 本发明公开了一种基于格密码的身份基可验证安全签名方法及相关设备，属于抗量子密码与信息安全技术领域。该方法基于MLWE与MSIS困难问题，包括：系统初始化、密钥提取、签名生成与签名验证四个阶段。私钥生成机构通过种子扩展生成公开矩阵，利用向量对构造主密钥，并通过Power2Round压缩主公钥。密钥提取阶段引入拒绝采样与提示向量机制，确保用户私钥不泄露主私钥统计信息。签名阶段采用双重拒绝采样与MakeHint压缩技术，生成紧凑签名。验证阶段通过UseHint恢复高位信息，完成一致性校验。本发明无需复杂陷门运算，具有计算效率高、签名尺寸小、天然抗量子攻击的优点，适用于车联网、物联网等资源受限环境下的身份认证场景。
Absstract of: EP4749986A1
Techniques for exposing entangled quantum states is disclosed, comprising the following steps:• storing entangled quantum states in a quantum memory at a network node;• storing metadata associated with the quantum states in a classical metadata memory, wherein the metadata includes a physical storage address, a time slot identifier and a logical identifier;• requesting the entangled quantum states from the quantum memory via a classical API;• exposing the entangled quantum states to users of a quantum communication protocol over a quantum communication channel.
Absstract of: EP4749988A1
Provided is a first network node for communicating with a second network node. The first network node includes circuitry configured to locally generate a first encryption key. The circuitry is further configured to communicate the first encryption key to the second network node via a first communication path. The circuitry is further configured to receive a second encryption key from the second network node via a second communication path. The second communication path involves at least one third network node different from a fourth network node of the first communication path. The circuitry is further configured to communicate encrypted payload data with the second network node. The encryption is based on a combination of the first and second encryption keys.
Absstract of: EP4749990A1
Dans ce procédé, un gestionnaire de clés centralisé (40) tient à jour une base de données avec les clés de chacun des nœuds (30i) du réseau QKD, et, lors de la réception d'une route pour échanger un aléa (K0) entre un émetteur et un destinataire, sélectionne une clé pour chaque paire de nœuds de la route et transmet, en parallèle à chacun des nœuds de la route, une commande (Ci) identifiant la clé qu'il partage avec le nœud précédent et la clé qu'il partage avec le nœud suivant. Chaque nœud somme (140) les deux clés identifiées et envoie une réponse à l'unité XOR (44), qui construit une chaine globale (K) avant de la transmettre au destinataire pour extraction de l'alea.
Absstract of: EP4749998A1
A system for providing an entanglement distribution for quantum applications in form of an Entanglement Distribution as a Service (EDaaS), comprising:A network provider plane configured to manage the generation, distribution, forwarding, and storage of entangled quantum states across a quantum network, the network provider plane comprising:- One or more quantum optical elements especially single photon sources, fiber-optic links, beam splitters, single-photon detectors, and quantum memories for generating and maintaining entangled photonic states;- A quantum link layer providing quantum optical connections to distribute entangled photon states between directly connected network nodes;- A quantum network layer configured for dynamic routing of quantum states across multiple optical paths between network nodes;An Application Programming Interface (EdaaS-API) operable at the service level, said API comprising:- A state retrieval interface configured to provide applications with logical and physical addresses of stored quantum states within the quantum memories;- A Q-Push interface configured to enable the export of selected quantum states, based on physical storage addresses, over a quantum channel by triggering the release of entangled photon states;A software-defined network (SDN) management layer configured to dynamically manage the configuration, monitoring, and routing of entangled states across the quantum network, said SDN management layer comprising:- A service configura
Absstract of: EP4518243A1
0001 In the method for guaranteeing authenticity of digital data, data are considered that are digitally signed with a pre-quantum signature and the method comprises the steps of generating a time stamp and digitally signing the pre-quantum signature together with the time stamp using a post-quantumg signature.
Absstract of: WO2025045383A1
A CV-QKD system comprising a plurality of transmitters, one or more splitters, and a plurality of receivers is provided. Each transmitter modulates a quantum signal according to a discrete or continuous distribution in phase and amplitude. Each splitter distributes N modulated quantum signals, received from a respective transmitter or from another splitter, into M modulated quantum sub-signals. Each receiver is configured to: receive, via a respective quantum channel, a modulated quantum sub-signal associated to one or more of the transmitters from the one or more splitters; detect one or more quadrature components of the received modulated quantum sub-signal; and perform a respective post-processing protocol with one or more of the plurality of transmitters to generate one or more individual final secret keys between the one or more transmitters and the receiver and/or one or more common secret keys between the one or more transmitters and the plurality of receivers.
Absstract of: EP4749991A1
0001 Dans ce procédé, un gestionnaire de clés centralisé (40) tient à jour une base de données avec les clés de chacun des nœuds (30) du réseau QKD, et, lors de la réception d'une route pour échanger un aléa (K<0>) entre un émetteur et un destinataire, sélectionne une clé pour chaque paire de nœuds de la route et transmet, en parallèle à chacun des nœuds de la route, une commande (C) identifiant la clé qu'il partage avec le nœud précédent et la clé qu'il partage avec le nœud suivant. Chaque nœud somme (140) les deux clés identifiées et envoie une réponse à l'unité XOR (44), qui construit une chaine globale (K) avant de la transmettre au destinataire pour extraction de l'aléa.
Absstract of: EP4749987A1
0001 Provided is a first network node communicating in a sequence of network nodes in a network. The first network node comprises circuitry configured to generate a first cryptographic context with a second network node in the sequence. The circuitry is further configured to generate a second cryptographic context with a third network node in the sequence. With respect to the first network node, a directly neighboring network node has access to at most one of the first and the second cryptographic contexts.
Absstract of: WO2025093381A1
Disclosed is a method for sharing information using a data sharing system comprising a sender node and a receiver node using a 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 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 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: WO2025093379A1
Disclosed is a method for sharing information between a sender node and a receiver node in accordance with a quantum communication protocol. The method comprises: determining an attack configuration for access by a third party to the quantum channel, the attack configuration being defined by at least a quantum circuit system having specific parameters and an attack success bound, the quantum circuit system being configured to intercept a qubit on the quantum channel, determine the state of the intercepted qubit; using the quantum circuit system to measure first and second metrics by at least intercepting qubits on the quantum channel; determining whether the second metric fulfils an error tolerance bound and whether the first metric fulfills the attack success bound; aborting the communication protocol if the second metric fulfils the error tolerance bound and the first metric fulfills the attack success bound.
Absstract of: KR20260075466A
0001a 본 발명은 본 발명은 양자 암호 통신 네트워크 관리 방법, 장치 및 컴퓨터 프로그램에 대한 것으로서, 보다 구체적으로 컴퓨팅 장치를 이용하여 복수의 노드를 구비하는 양자 암호 통신 네트워크를 관리하는 방법에 있어서, 상기 복수의 노드 중 시작 노드와 목적 노드 및 하나 이상의 중계 노드를 포함하는 양자키 중계 경로를 산출하는 단계; 및 상기 산출된 양자키 중계 경로를 이용하여 상기 시작 노드에서 상기 목적 노드로 제1 양자키를 전달하는 단계를 포함하며, 상기 전달하는 단계에서는, 상기 제1 양자키에 대한 제1 유효 기간 정보를 함께 전달하여 상기 시작 노드 또는 상기 목적 노드에서 상기 제1 유효 기간 정보를 기초로 상기 제1 양자키에 대한 관리를 수행하도록 하는 방법을 개시한다.
Nº publicación: CN122095379A 26/05/2026
Applicant:
亚马逊科技公司
Absstract of: 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.
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