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167
resultados
Última actualización
10/09/2026 [10:41:00]
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
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.
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.
Resumen de: US20260261410A1
The present disclosure provides a method for a transmitting terminal to transmit information on a quantum channel in a quantum communication system. More specifically, the method comprises generating a single photon pair related to a polarization coding for transmission of the information; generating a transmission information sequence including (i) a message sequence related to the information and (ii) a checking sequence related to a quantum bit error rate (QBER) estimation for determining whether there is eavesdropping on a quantum channel, the checking sequence being randomly inserted between sequence elements of the message sequence; performing either (i) an encryption or (ii) a scrambling on the information sequence; transmitting, to a receiving terminal, quantum information generated based on the polarization coding for the information sequence, to which either (i) the encryption or (ii) the scrambling is applied, on the quantum channel; performing the QBER estimation with the receiving terminal; and transmitting, to the receiving terminal, information for restoring the information sequence, to which either (i) the encryption or (ii) the scrambling is applied, based on a result of the QBER estimation.
Resumen de: WO2026179321A1
The present disclosure relates to the technical field of communications, and provides a user identity information protection method and apparatus, and a related device. The method comprises: in response to an identity registration request of a terminal, selecting a target protection strategy from among a plurality of information protection strategies, wherein the target protection strategy uses a key agreement algorithm and/or a quantum key algorithm to generate a shared key between the terminal and a network side; generating a first shared key on the basis of the target protection strategy, and using the first shared key to encrypt plaintext user identity information of the terminal to obtain encrypted user identity information; and sending the encrypted user identity information, an identifier of the target protection strategy, and corresponding parameters to the network side, so that the network side generates a second shared key on the basis of the identifier of the target protection strategy and the corresponding parameters, and uses the second shared key to decrypt the encrypted user identity information to obtain the plaintext user identity information. The present disclosure can not only effectively avoid the security risk brought by quantum computing, but also solve the problem of insufficient quantum keys.
Resumen de: US20260260199A1
0000 The present disclosure provides a method of facilitating automated regulatory compliance determination. Further, the method may include receiving, using a communication device, a compliance input data from a regulatory data source. Further, the method may include receiving, using the communication device, an operational input data from an enterprise system. Further, the method may include determining, using a processing device, a compliance status data by processing the compliance input data and the operational input data using a quantum-inspired neural network. Further, the method may include generating, using the processing device, a compliance output data based on the compliance status data. Further, the method may include storing, using a storage device, the compliance output data. Further, the method may include transmitting, using the communication device, the compliance output data to a client system.
Resumen de: US20260261431A1
0000 A system (100) for authenticating digital communications comprises a sender layer (102) and a receiver layer (104). The sender layer (102) comprises a signing layer (110) configured to intercept outbound communications from a verified human identity prior to transmission, wherein the verified human identity is registered to a public identity record (109), an identity anchor (108) binding a signing key to the verified human identity, and a verification artifact generated by the signing layer (110), the verification artifact encoding the identity anchor (108) of the verified human identity. The receiver layer (104) comprises a public verification protocol (114) enabling a receiving system to receive the outbound communications and validate the verification artifact against the public identity record (109) to confirm authenticity of the outbound communications.
Resumen de: EP4800967A1
The disclosure relates to a method and a communication system for establishing a plurality of secret cryptographic keys shared between a sending unit and a plurality of receiving units, wherein the sending unit is connected to the plurality of receiving units by a plurality of communication channels. The method comprises transmitting, at the sending unit, a first sequence of electromagnetic signal pulses to a first receiving unit among the plurality of receiving units via a first communication channel among the plurality of communication channels for establishing a first cryptographic key shared between the sending unit and the first receiving unit, wherein each electromagnetic signal pulse of the first sequence of electromagnetic signal pulses corresponds to a bit of a first random bit sequence according to a key distribution protocol. The method further comprises transmitting, at the sending unit, a second sequence of electromagnetic signal pulses to a second receiving unit among the plurality of receiving units via a second communication channel among the plurality of communication channels for establishing a second cryptographic key shared between the sending unit and the second receiving unit, wherein each electromagnetic signal pulse of the second sequence of electromagnetic signal pulses corresponds to a bit of a second random bit sequence according to the key distribution protocol. The method further comprises determining a first key bandwidth share for the first sequ
Resumen de: EP4800972A1
0001 A method of monitoring an encrypted message received by a computing device using an application is provided. The method comprises the computing device receiving an encrypted message comprising cryptographic handshake data. The application determines a cryptographic algorithm of the encrypted message based on the cryptographic handshake data. The application determines whether the encrypted message is quantum-secure based on the determined cryptographic algorithm. The application generates an indication on the computing device that the encrypted message is quantum secure or an indication on the computing device that the encrypted message is not quantum secure.
Resumen de: EP4800968A1
The disclosure relates to a method for establishing a plurality of secret cryptographic keys shared between a sending unit and a plurality of receiving units, wherein the sending unit is connected to the plurality of receiving units by a plurality of communication channels. The method comprises transmitting, at the sending unit, at least one first electromagnetic test pulse to a first receiving unit among the plurality of receiving units via a first communication channel among the plurality of communication channels, and determining a first signal loss in the first communication channel based on the at least one first electromagnetic test pulse detected at the first receiving unit. The method further comprises transmitting, at the sending unit, a first sequence of electromagnetic signal pulses to the first receiving unit via the first communication channel for establishing a first cryptographic key shared between the sending unit and the first receiving unit, wherein each electromagnetic signal pulse of the first sequence of electromagnetic signal pulses corresponds to a bit of a random bit sequence according to a key distribution protocol. The method further comprises transmitting, at the sending unit, at least one second electromagnetic test pulse to a second receiving unit among the plurality of receiving units via a second communication channel among the plurality of communication channels, and determining a second signal loss in the second communication channel based on
Resumen de: EP4800970A1
0001 The present invention relates to a receiver module for use in continuous-variable quantum key distribution, the receiver module comprising: a symmetric 3x3 optical coupler having three input ports and three output ports; a quantum channel for providing a quantum signal to the symmetric 3x3 optical coupler; an optical switch means arranged between the quantum channel and a first input port of the symmetric 3x3 optical coupler and configured to block or attenuate the quantum signal; a first single-ended photodetector and a second single-ended photodetector; and a signal processing unit configured to process the outputs of the single-ended photodetectors, wherein the first single-ended photodetector is coupled to a first output port of the symmetric 3x3 optical coupler and the second single-ended photodetector is coupled to a second output port of the symmetric 3x3 optical coupler.
Resumen de: WO2025087609A1
There is herein described a method of performing Quantum Key Distribution (QKD), the method comprising generating a first quantum key by performing QKD between a first quantum transmitter at a first quantum node and a quantum receiver at a second quantum node, generating a second quantum key by performing QKD between the quantum receiver at the second quantum node and a second quantum transmitter at a third quantum node, encrypting data using the second quantum key, transmitting the encrypted data from the second quantum node to the third quantum node, wherein the data comprises, the first quantum key; and/or data received at the second quantum node from the first quantum node.
Resumen de: US20260254624A1
0000 Various aspects of the disclosure relate to verification of data sets used for real-time processes and/or batch processes. A computing platform negotiates, by a first quantum node, a shared key group with at least a second quantum node and calculates an exclusive or (XOR) value of a pair of the first quantum node and the second quantum node. The first quantum service node performs a shared key grouping with the second quantum node and then selects a quantum key relay link between a real-time node and a batch source node. The computing platform selects a corresponding state of all virtual quantum nodes associated with the quantum key relay link and encapsulates a virtual quantum link state between any two quantum service nodes in the quantum network into a database decision engine data file.
Resumen de: US20260254622A1
Systems and methods for implementing a multi-axis measurement protocol to protect quantum information are disclosed herein. A method includes generating at least one input qubit data for transmission. Further, the method includes determining one or more qubit measurement operations to be performed on the qubit data. The method then include generating one or more entangled pairs of qubits comprising first set of qubits and second set of qubits. Also, the method includes creating entangled data by entangling the input qubit data with the first set of qubits. The method then includes performing the determined at least one appropriate qubit measurement operation on the created entangled data to orientate a state of the created entangled data before transmission. Further, the method includes generating two classic bits for the created entangled data based on the performed appropriate qubit measurement operation and transmitting to the receiver via a classic communication channel.
Resumen de: WO2026175532A1
Provided is a method for key distribution in a communication system comprising a source node, at least one intermediate node, and at least one destination node. The method comprises receiving a request for distributing a key to the at least one destination node, the request including a policy requirement for distributing the key from the source node via the at least one intermediate node to the at least one destination node. Furthermore, the method comprises distributing the key from the source node to the at least one destination node based on the policy requirement. A report is transmitted, the report providing feedback regarding the key distribution based on the policy requirement.
Resumen de: US20260254621A1
This invention relates to a quantum cloud-based processing system for managing transaction data across multi-application environments with enhanced security, adaptability, and efficiency. The system receives transaction data and metadata, encrypts it using dynamically generated quantum encryption keys, and queries downstream applications to retrieve data structure requirements. It creates a hierarchical map to trace data transformations, tokenizes data into standardized units with encoded metadata, and performs multi-level data augmentation using advanced machine learning techniques. The system ensures seamless integration with applications through a soft commit mechanism, detects and categorizes anomalies, and generates comprehensive discrepancy and anomaly impact reports. Dynamic updating modules adapt to changes in application requirements, while logging and storage modules maintain secure and auditable records of all workflows. This invention addresses the complexities of managing sensitive transaction data, ensuring integrity, compliance, and scalability in diverse, high-volume environments.
Resumen de: US20260254623A1
0000 A key exchange system includes: a quantum key distribution (QKD) network including a plurality of QKD apparatuses that performs exchange of a key and a plurality of key management apparatuses that relays the key; and a plurality of hub apparatuses that performs encrypted communication by using the key. One of the QKD apparatuses includes a processor configured to, in a case where the key is transmitted to an unreliable key management apparatus, use a secret key shared in advance with a hub apparatus that receives the key via the unreliable key management apparatus, and transmit the key subjected to an exclusive OR with the secret key to the unreliable key management apparatus. The hub apparatus includes a processor configured to, in a case where the key is received from the unreliable key management apparatus, use the secret key to calculate an exclusive OR of the secret key and the key.
Resumen de: US20260254625A1
0000 Systems, methods, and quantum circuits for utilizing a joint modular multiplicative inverse operation to perform quantum decryption. First and second private keys are determined by applying first and second series of quantum phase estimation circuits to first and second pluralities of qubits. The private keys are determined further based on public keys and a base point P. The first and second series of quantum phase estimation circuits include application of a joint modular multiplicative inverse circuit on a first qubit of the first plurality of qubits and a second qubit of the second plurality of qubits that calculates a modular multiplicative inverse of a modular product of a first value of the first qubit and a second value of the second qubit. The first and second private keys are stored in a non-transitory computer-readable memory medium.
Resumen de: US20260254620A1
0000 There is herein disclosed an apparatus for performing quantum key distribution, the apparatus comprising a first quantum terminal, the first quantum terminal being one of a first quantum transmitter/receiver pair, and a second quantum terminal, the second quantum terminal being one of a second quantum transmitter/receiver pair, wherein the first quantum terminal comprises a plurality of connected functional components which, in use, co-operate to perform quantum key distribution with the other of the first quantum transmitter/receiver pair, wherein, in use, one or more of the plurality of connected functional components co-operates with the second quantum terminal to perform quantum key distribution with the other of the second quantum transmitter/receiver pair.
Resumen de: US20260246625A1
An auto-compensating QKD system. The system includes a QKD transmitter and a QKD receiver. The QKD receiver is configured to send an initial optical pulse train to the QKD transmitter and to receive a reference optical pulse train followed by a signal optical pulse train from the QKD transmitter. The QKD transmitter is configured to receive the initial optical pulse train from the QKD receiver and to send the reference optical pulse train and the signal optical pulse train to the QKD receiver.
Resumen de: US20260246621A1
0000 A key provision system according to the present disclosure includes a first terminal on a master side of key sharing, a first key server capable of providing a shared key to the first terminal, a second terminal on a slave side of the key sharing, and a second key server capable of providing a shared key to the second terminal, wherein the first key server includes: a first key generation unit configured to, when receiving a key request from the first terminal, generate the shared key and second identification information for identifying the shared key by using one or more keys shared with the second key server by one or more key sharing methods and first identification information for identifying each of the one or more keys; a key notification unit configured to transmit a key notification including the shared key and the second identification information to the first terminal; and a first transmission unit configured to transmit the second identification information to the second key server when receiving the second identification information from the first terminal, and the second key server includes: a second key generation unit configured to generate the shared key and the second identification information by using the one or more keys shared with the first key server by the one or more key sharing methods and first identification information for identifying each of the one or more keys; a second transmission unit configured to transmit the second identification
Resumen de: US20260244773A1
A system for adaptive access control and asset management comprises a metric collection layer configured to capture real-time user metrics from integrated systems. A blockchain layer provides an immutable, quantum-resistant ledger for storing access events, asset records, and compliance data. An authorization layer manages adaptive access control based on effort scores, access thresholds, and effort decay mechanisms. A data integration layer interfaces with external applications for data access, analytics, and reporting. The metric collection layer captures task completion, accuracy, and engagement metrics. The blockchain layer employs a hybrid model combining on-block and off-block storage. The authorization layer includes a BlockCipher Module for making access decisions based on calculated effort scores and predefined thresholds. The data integration layer facilitates integration of AI algorithms for behavior analysis and predictive insights. The system enables secure, adaptive access control and asset tracking across industries like finance, healthcare, supply chain, and government sectors.
Resumen de: US20260246624A1
0000 A computer-implemented method utilizing an algorithmic-based approach to find a memory-efficient left-node authentication path in XMSS and LMS post-quantum cryptography algorithms that includes providing a computer with at least one processor operably configured to carry out a post-quantum cryptographic authentication session having an authentication path and operably configured to execute computer readable instructions having an algorithm with three subroutines, a first subroutine that includes generating an index value integer of authentication path nodes within the authentication path needing updating, a second subroutine that includes initializing a left node variable and initializing a right node variable based on a generated leaf position, and a third subroutine that includes iterating the left and right node variables with a merging operation until reaching the index value integer and swapping the left node variable with an index
Resumen de: WO2026167080A1
Methods and systems for efficient sampling from probability distributions using flexible transformation approaches. The invention encompasses multiple transformation techniques, including but not limited to reparametrization methods and various distribution families, implemented through configurable hardware and software architectures, providing robust solutions for sampling challenges across different computational environments. The method is particularly suitable for hardware-accelerated implementations, allowing scalable and low- latency sampling. Applications span from stochastic process simulation to optimization in machine learning algorithms, inference tasks, and quantum communication systems including Quantum Key Distribution protocols requiring entropy-efficient, cryptographically secure sampling operations.
Nº publicación: US20260238459A1 13/08/2026
Solicitante:
QUANTUM PROPERTIES TECH LLC [US]
Quantum Properties Technology LLC
Resumen de: US20260238459A1
A method of native-speed encrypted data processing with graceful cryptographic degradation architecture for use in cryptography includes the following steps: in a first cryptographic mode, storing key bits from key data on a memory, the memory positioned on a chip substrate of a chip, wherein the chip is free from physical infrastructure to access the key bits externally from the chip, thereby preventing unauthorized access of the key bits; processing the key data with at least one processing device positioned on the chip substrate; and when a quantity of unused key bits from the key bits is below at least one threshold, using a second cryptographic mode to prevent unauthorized access of the key bits.
BOPI
Sede Electrónica
