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297
results.
Updated on
22/10/2026 [11:20:00]
Results 25 to 50 of 297
Absstract of: US20260303333A1
0000 The first information processing device includes: a first acquisition unit that acquires key data from the key supplying base; a generation unit that encrypts first data by means of the key data and generates second data by adding attribute information related to encryption to the encrypted first data; and a transmission unit that uploads the second data to an external device. The second information processing device includes: a second acquisition unit that acquires the key data from the key supplying base; a reception unit that downloads the second data from the external device; and a decryption unit that identifies the key data on the basis of the attribute information included in the second data and decrypts the first data included in the second data by means of the key data.
Absstract of: US20260303355A1
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.
Absstract of: US20260304111A1
0000 A network node may receive a message. The message may include PQC key, for example from a second network node. The network node may determine, for example based on the PQC key, a master shared secret key (MSSK), and/or encapsulate the MSSK into a ciphertext. The network node may send the ciphertext comprising the MSSK, for example to the second network node. The network node may determine, for example based on the MSSK, a second key. The network node may establish and/or modify, for example based on the second key, a secure E2E connection with the second network node for communications. The network node may determine to use the MSSK as a pre-shared key (PSK). The network node may establish and/or modify a communication protocol with the second network node, for example using the PSK.
Absstract of: US20260303326A1
According to one embodiment, in an encryption communication system, a first device and a second device that execute encryption communication via a first network share an encryption key used for the encryption communication via a second network including a plurality of nodes. The first device generates n pieces of first data used for generating the encryption key, transmits the n pieces of first data to the second device by distributing the n pieces of first data to n nodes among the nodes and sending the n pieces of first data to the second network, and generates the encryption key by using the n pieces of first data. The second device receives the n pieces of first data from n nodes among the nodes, and generates the encryption key by using the n pieces of first data.
Absstract of: EP4815342A1
0001 A quantum transmitter for use in a quantum communication system is provided, the transmitter comprising: a plurality of quantum state encoders, each encoder configured to emit portions of light, each portion encoded with a respective quantum state; and a beam combining module configured to receive portions of light emitted from each quantum state encoder, and combine the received portions to produce output light comprising a sequence of successive portions of light emitted by each encoder. A corresponding quantum communication system is also provided.
Absstract of: EP4815363A1
0001 A sender apparatus determining the existence of an eavesdropper present on a quantum channel in a plug-and-play type QKD system is disclosed. The sender apparatus is configured to detect a continuous pair of laser pulses delivered through the quantum channel, and includes a photodetector outputting a laser pulse detection signal including a continuous pair of electrical pulses corresponding to the detected pair of laser pulses, and a TDC measuring the time interval between the pair of electrical pulses. Information regarding the measured time interval is used to determine whether an eavesdropper exists on the quantum channel.
Absstract of: EP4815362A1
A communication method includes: generating a key (first key) including a private key and a public key using a random seed stored in advance (S202); creating, using the key generated, a digital certificate for the key (S203); and transmitting the digital certificate created to a connected device (200), the connected device (200) storing in advance a random seed identical to the random seed and generating, using the random seed stored in the connected device (200), a key (second key) identical to the key generated (S204).
Absstract of: 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.
Absstract of: US20260291963A1
0000 A hybrid quantum-classical framework detects anomalies in network data by integrating quantum and classical neural networks. Data acquisition collects user inputs and network traffic, forming a raw dataset preprocessed with SHA3 hashing and SPHINCS+ quantum-safe signatures for integrity. Quantum encoding with BB84 QKD and CNOT gate entanglement secures quantum transfers, while a quantum neural network validates data, normalizes it, and applies amplitude encoding to extract features using variational quantum circuits with RY/RZ gates, optimized via gradient descent. A variational quantum recurrent network with quantum memory classifies anomalies, thresholding scores at 0.9 to generate severity-ranked alerts. A classical convolutional neural network analyzes spatial patterns, with a multi-translation layer fusing quantum and classical outputs. An integration module combines results, adjusts circuit depth, monitors latency, and logs anomalies to persistent storage, ensuring real-time, comprehensive anomaly detection across diverse network environments.
Absstract of: WO2026194891A1
Provided is a key distribution method, which is applied to a sending node. The method comprises: acquiring a first raw key of a sending node and a first raw key of a relay node; determining a first intermediate key of the sending node on the basis of the first raw key of the sending node and the first raw key of the relay node; acquiring a first intermediate key of a receiving node; and determining a first target key on the basis of the first intermediate key of the sending node and the first intermediate key of the receiving node, the first target key being used for the sending node to communicate with the receiving node by means of the relay node.
Absstract of: US20260291984A1
A network security system and method integrate generative artificial intelligence, dynamic firewall management, quantum processing, simulation, and quantum key distribution to protect digital infrastructure. The generative AI scans internet data to identify malicious URLs, generating dynamic deny and allow lists for a firewall that updates rules in real time, monitors traffic, and mitigates DDoS attacks. A quantum firewall inspects packets using a quantum processor, producing prioritized quantum rules, while a doppelganger system simulates packet effects on a mirrored network with a quantum simulator, preemptively determining outcomes. Quantum key distribution employs photon polarization to generate keys, validating traffic and detecting eavesdropping, with the firewall rerouting traffic and adjusting update frequency based on threat levels. Historical traffic analysis predicts threats, and internal communications are encrypted, ensuring comprehensive, adaptive security through interconnected components managed by a central network manager.
Absstract of: US20260289000A1
0000 Disclosed herein are system, method, and computer program product for managing documents using blockchain technology and quantum-safe computational architecture. A smart drive system may facilitate the creation of a project data structure encrypted using a quantum-resistant cryptographic scheme and distributed or decentralized key management functionalities. The project data structure may indicate a sequence or flow of documents and/or document types. The smart drive system may also manage groups of documents and generate documents and group tokens to manage access permissions. The smart drive system may protect these data sources from unauthorized access based on the quantum tokens corresponding to the document, document type, and/or group of documents. The smart drive system may facilitate modifications to the document from other parties, which may represent counteroffers or a negotiation process. The smart drive system may also interconnect documents of a project data structure to create documents with pre-filled data and corresponding cryptographic bindings.
Absstract of: WO2025125990A1
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: EP4811717A1
0001 A non-terrestrial communication system and method for securely synchronizing quantum-secure cryptographic keys are provided. The system comprises a satellite comprising a SAT key operations module with a SAT key manager to manage and provide quantum-secure cryptographic keys; a first connection adapter co-located with an HSS; a CPE comprising a CPE key operations module with a CPE key manager to manage and provide quantum-secure cryptographic keys, a second connection adapter, and one radio terminal. The first adapter sends a key information request to the SAT key operations module, receives quantum-secure cryptographic key information from the SAT key operations module, loads a quantum-secure cryptographic key into the HSS, and sends a key identifier to the second connection adapter. The second adapter sends a key information request to the CPE key operations module, receives quantum-secure cryptographic key information from the CPE key operations module, and loads a quantum-secure cryptographic key into the radio terminal.
Absstract of: KR20260139461A
0001a 본 발명은 하이브리드 양자내성암호 기반 순방향 비밀성 지원 통신 장치에 관한 것으로, 상기 장치는 사용자 식별자에 대하여 양자내성암호 기반 암호화를 수행하여 구독자의 식별정보(SUCI, Subscription Concealed Identifier)를 생성하고 상기 구독자의 식별정보(SUCI)를 사용자 단말에 전송하는 구독 암호화 식별부; 난수(RAND)를 생성하여 상기 사용자 단말에 제공하고 상기 난수(RAND)를 밀레나지 함수(Milenage Function)에 입력하여 인증토큰(AUTN)을 생성하는 도전 응답 인증부; 및 상기 인증토큰(AUTN)을 기초로 세션 데이터를 암호화하여 상기 사용자 단말과 통신하는 순방향 비밀성 지원부를 포함한다.
Absstract of: WO2022015395A2
Systems for, and methods of, detecting an attack on an optical communication channel are presented. The techniques can include sending, from a sender to a receiver, and over the optical communication channel, an optical signal, where the optical signal includes a classical optical signal representing first information and a quantum optical signal representing second information. The techniques can include detecting, by the receiver, third information from at least a portion of the quantum optical signal and sending, by the receiver to the sender, the third information. The techniques can include determining, by the sender, an indication of an attack on the optical communication channel based on at least a portion of the second information and the third information. The techniques can include triggering an alarm based on the determining.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: WO2026188790A1
The present application relates to a communication method and apparatus, a communication device and a storage medium. The method comprises: receiving a first message sent by a user equipment, wherein the first message is generated by the user equipment on the basis of a first encrypted message, a request message and a first quantum key, and the first encrypted message is obtained by encrypting the request message on the basis of the first quantum key; on the basis of the first message, determining the operational availability of an S&F operation; and when the operational availability indicates that the operation is available, sending a second message to a core network on the basis of the first encrypted message in the first message.
Absstract of: 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.
Absstract of: 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.
Absstract of: WO2026190722A1
The present disclosure provides a system (102) for postquantum cryptographic partitioning and a method thereof. The system (102) generates a base wheel including a first element representing an integer and a list of prime numbers. The system (102) generates a culled list by multiplying each element of the base wheel by a selected prime number from the list of prime numbers. The system (102) generates a temporary list by using each element of the base wheel and appending one or more multiples of a primorial to each element of the base wheel, where the primorial is a product of all primes up to a selected prime number. Further, the system (102) generates a wheel by removing elements that are present in the culled list from the temporary list.
Absstract of: WO2026189701A1
This invention provides a quantum memory device, and a method of operating the quantum memory device, the quantum memory device comprising: a structure defining a plurality of vapour containment channels extending through the structure, each vapour containment channel containing vapour; and a controller configured to selectively: couple a first optical signal to a first vapour containment channel of the plurality of vapour containment channels, wherein the first optical signal contains 10 information, and control storage of the information of the first optical signal in the first vapour containment channel.
Nº publicación: WO2026192963A1 17/09/2026
Applicant:
QUALCOMM INCORPORATED [US]
QUALCOMM INCORPORATED
Absstract of: WO2026192963A1
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.
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