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一种基于数论变换的QKD快速隐私放大方法

Resumen de: CN122578136A

本发明公开了一种基于数论变换的QKD快速隐私放大方法，其将初始密钥向量与Toeplitz矩阵生成向量均基于行列分解思想，重塑为相同行数和列数的第一矩阵和第二矩阵；对两矩阵的相应列向量分别执行NTT运算；对每个数据乘以对应的行列旋转因子；遍历相应行向量调用基‑r蝶形运算单元执行一次蝶形运算后进行点乘与模约简；对模约简结果矩阵中的行向量调用基‑r蝶形运算单元执行一次蝶形运算，再对蝶形运算结果矩阵中的每列向量执行INTT运算；重组得到最终密钥。本发明采用有限域整数NTT运算避免浮点误差，通过基‑r蝶形单元复用及矩阵化并行架构，在保证运算绝对精度的前提下，以低硬件资源消耗实现高吞吐率隐私放大，能够满足高速QKD系统的实时处理需求。

一种基于线性同态加密的后量子联邦学习聚合方法

Resumen de: CN122578127A

本发明公开了一种基于线性同态加密的后量子联邦学习聚合方法，涉及数据安全技术领域，将基于格基构造、满足选择明文攻击安全性的对称线性同态加密应用于联邦学习参数加密，利用对称线性同态加密的线性同态特性在加密状态下完成参数聚合，包括：协议初始化、密钥收集与协商、本地训练与参数加密、解密密钥重构和加密态参数聚合、解密与模型更新六个环节；针对现有联邦学习同态加密聚合协议的多项短板开展优化：提升加密参数聚合效率，降低计算、加解密与通信开销；搭建全后量子安全架构，抵御量子攻击、保障参数隐私；支持差异化权重分配与用户掉线容错，贴合真实训练场景；最终构建出兼顾隐私安全、运行高效、实用性强的新型聚合协议。

一种基于量子加密的大模型跨节点参数安全交互方法

Resumen de: CN122578326A

0001 本公开提供一种基于量子加密的大模型跨节点参数安全交互方法，包括：获取本地训练节点反向传播后的训练节点参数，根据训练节点参数生成流水线微批次进度标识。基于流水线微批次进度标识限定的范围，对梯度参数进行分级识别，以获取微批次内梯度分级结果。提取QKD链路在当前训练周期内对应的量子密钥池状态，根据量子密钥池状态对微批次内梯度分级结果中的不同梯度段生成相应的量子掩码策略。通过量子掩码策略对各梯度段内容分别执行掩码处理，对掩码后的各梯度段内容进行封装，以生成分层量子掩码梯度交互包。通过参数聚合节点按照流水线微批次进度标识对分层量子掩码梯度交互包进行归集和校验，在校验通过后输出微批次一致的安全聚合结果。

一种车辆分布式安全接入方法、装置、设备及存储介质

Resumen de: CN122578318A

本申请公开了一种车辆分布式安全接入方法、装置、设备及存储介质，涉及车辆充电信息安全技术领域，应用于预设分布式安全接入系统，包括：通过车辆终端向协调边缘节点发送接入请求和请求摘要；通过协调边缘节点将请求摘要发送至多个背书边缘节点，接收背书边缘节点返回的背书签名；通过协调边缘节点检查背书签名，利用背书检查结果及预设背书阈值条件确定门限背书结果；通过车辆终端对门限背书结果进行阈值验收，当阈值验收结果表明验收通过时，通过车辆终端和协调边缘节点，并利用后量子密钥封装机制建立加密认证通道，以便基于加密认证通道完成车辆终端的业务；业务包括有序充电业务。本申请实现了兼顾安全性、实时性及可用性的车辆分布式接入。

基于后量子密码的无人机密钥分发方法及系统

Resumen de: CN122578158A

0001 本发明属于无人机集群通信安全技术领域，涉及一种基于后量子密码的无人机密钥分发方法及系统，包括：获取后量子密钥封装密文流并解析内存结构，剥离得到共有代数矩阵以及对应集群中成员节点的节点特征向量；构建反映集群空间拓扑与信道带宽容量的感知矩阵；建立共有代数矩阵与节点特征向量在物理信道上的非对称映射逻辑，将共有代数矩阵投递至全向低频组播信道，同时将节点特征向量路由至定向高频信道，本发明通过密文代数结构的跨层感知与解耦，消除集群密钥分发过程中共有载荷的重传冗余，解决大体积密文在动态衰落信道下引发的广播风暴，提升安全协议在恶劣信道环境下的收敛速度。

光模块、通信方法及芯片

Resumen de: WO2026170994A1

The present application provides an optical module, a communication method, and a chip, for use in processing service signals and quantum signals in a QKD scenario by means of a single optical module, thereby reducing hardware requirements and saving hardware resources. The optical module comprises: a first local oscillator light source, used for generating first local oscillator light on the basis of local oscillation; and an electro-optical conversion module, used for: acquiring a first electrical signal and a second electrical signal, wherein the first electrical signal carries first communication service information having been encrypted by using a first quantum key, and the second electrical signal carries the first quantum key; modulating the first electrical signal into a first optical signal on the basis of the first local oscillator light; and modulating the second electrical signal into a second optical signal on the basis of the first local oscillator light. The optical module is further used for sending the first optical signal and the second optical signal by means of an optical fiber.

多币种智能POS终端及处理系统

Resumen de: CN122573461A

本发明涉及支付终端技术领域，且公开了多币种智能POS终端及处理系统，其中，多币种智能POS处理系统，包括多币种智能POS终端和后台处理平台，所述多币种智能POS终端与后台处理平台通过加密通信链路建立双向数据交互，所述多币种智能POS终端用于采集支付信息、执行支付操作并反馈交易结果，所述后台处理平台用于完成多币种清算、汇率同步、风控审计及数据管理；本发明实现多币种汇率实时同步，通过对接权威汇率供应商，按预设周期同步汇率数据，结合汇率校验与缓存机制，确保汇率数据的准确性、时效性，避免因汇率更新滞后导致的商户或消费者损失，同时在网络中断时保障交易正常进行，提升系统稳定性。

一种面向已部署芯片的密码算法安全分发与原子性热替换方法及系统

Resumen de: CN122578165A

本发明公开了一种面向已部署芯片的密码算法安全分发与原子性热替换方法及系统，属于密码学与半导体安全技术领域。本发明解决已部署存量芯片无法在业务不中断条件下完成密码算法迁移的问题。方案为：算法分发中心对微码更新包签名加密后分发；目标芯片通过硬件信任根执行多级验证链；采用硬件物理隔离且大小可动态调整的双缓冲密码算法执行单元，由硬件逻辑直接改变执行路径实现硬件级原子性切换，会话状态和密钥材料完整迁移，安全会话连续不中断；故障监控单元持续监测新算法运行状态，检测异常时自动原子性回滚至原算法。本发明适用于数据中心芯片、车载安全芯片、工业控制芯片和物联网设备安全芯片的密码算法迁移。

一种密钥补充装置及其工作方法

Resumen de: CN122578149A

0001 本申请公开一种密钥补充装置及其工作方法，所述方法包括：量子安全网络管理设备生成业务信息索引表发送至密钥补充装置；量子安全设备预先在量子安全网络管理设备中进行设备注册、上报自身的密钥总量，量子安全网络管理设备将密钥总量发送至密钥补充装置；量子安全网络管理设备基于量子安全设备的业务服务调用请求通知密钥补充装置在本地进行密钥余量的计算；密钥补充装置基于密钥余量的计算结果确定是否生成密钥补充指令，根据生成的密钥补充指令执行密钥补充操作。本发明仅对通过认证的设备进行统一密钥余量监控，具备业务数据与设备的精准对应能力，针对不同设备灵活执行密钥补充。

一种基于电力系统远动装置的加密传输系统

Resumen de: CN122578223A

0001 本申请公开了一种基于电力系统远动装置的加密传输系统，包括：量子‑经典混合加密模块、信道冗余切换模块、区块链密钥管理模块和威胁检测优化模块，其中，量子‑经典混合加密模块实现了量子密钥与经典加密算法的融合；信道冗余切换模块通过动态量化评估信道质量实现加密模式的智能切换，保障了通信的连续性与可靠性；区块链密钥管理模块引入基于区块链与零知识证明的去中心化密钥管理，在确保密钥安全与隐私的前提下实现了自动化轮换与监管合规；威胁检测优化模块能够依据信道状态、密钥熵值及AI威胁检测结果，动态调整加密强度与前向纠错策略，从而在复杂电网环境中智能平衡安全性与传输效率。

一种融合量子密钥分发的星闪安全接入认证系统

Resumen de: CN122578157A

0001 本发明属于通信系统领域，具体的说是一种融合量子密钥分发的星闪安全接入认证系统，包括量子密钥分发集中处理模块，部署于网关侧与外部量子密钥分发网络建立量子信道连接获取主密钥材料；星闪网关量子代理模块，对主密钥材料执行密钥派生生成会话密钥种子；本系统使轻量级终端无需集成量子硬件即可获得量子级安全保护，通过密钥缓存预生成机制化解了量子密钥分发速率受限与星闪高速通信需求的矛盾，通过分层密钥管理架构确保部分终端被攻破不影响其他终端安全，通过双向认证机制与抗量子攻击密钥派生函数构建多层次安全防护体系。

量子密钥分发装置、接收端及量子密钥分发系统

Resumen de: CN122578152A

本申请提供了一种量子密钥分发装置、接收端及量子密钥分发系统，可以应用于量子通信网络技术领域。量子密钥分发装置包括光源、调制器、处理器以及光学相控阵；光源被配置为生成激光，并将激光分为导频光和信号光；调制器被配置为对信号光进行调制，生成量子信号光；处理器被配置为生成相位控制信号；光学相控阵被配置为在相位控制信号的控制下，向处于与相位控制信号相对应的空间方位上的接收端发送导频光和量子信号光。接收端接收导频光和量子信号光，并利用本地激光器生成本振光，探测器对导频光、量子信号光、本振光进行相干探测，输出探测电信号，处理器基于探测电信号得到量子密钥。

QUANTUM COMMUNICATION SYSTEM USING CORRECTION OF THE POLARIZATION OF PHOTONS

Resumen de: US20260238350A1

0000 A receiver is provided for receiving a multiplexed signal and an optical signal that are transmitted independently through a transmission channel, the multiplexed signal including a first quantum signal (Q) and at least one polarization state control signal, the optical signal including a second quantum signal (Q), the receiver having a processing chain and a correlation module associated with a polarization base of at least one polarization state, the chain being designed to determine the polarization state of the control signal and to modify the polarization of the multiplexed signal so as to align the determined state with the state of the base, the module being configured to carry out a correlation measurement between the first and second quantum signals and to generate, based on the measurement, at least one information signal regarding the entanglement state of the first and second quantum signals.

SYSTEM FOR DISTRIBUTING QUANTUM KEYS USING CORRECTION OF THE POLARIZATION OF PHOTONS

Resumen de: US20260238352A1

0000 A transmitter of a multiplexed signal through a transmission channel includes a generator of an initial quantum signal, of a first reference signal and of a second reference signal, an encoder having N optical channels including a selector for passing the initial signal to one of the channels, and a recombiner for generating the multiplexed signal, the multiplexed signal including first and second signals (R<11>, R<12>) for controlling first and second polarization-encoding values (P<1>, P<2>), respectively, and a quantum signal, determined based on the initial signal, encoded with an encoding value. The optical channels include two channels each including a unit for integrating a reference signal into the channel, each control signal being determined based on one of the reference signals delivered by the channel in question to the recombiner.

Systems and Methods for a Quantum Safe Certificate Ledger

Resumen de: US20260238465A1

0000 A quantum safe blockchain system can operate with quantum safe blockchain nodes (QSBN) and validators. A QSBN can generate a pending register certificate transaction comprising a public key, a fingerprint for a certificate, a URL for the certificate, a first registration number for a parent certificate of the certificate, and a digital signature. The QSBN can transmit the pending register certificate transaction to the quantum safe blockchain system. A validator can receive the pending transaction, validate the digital signature using the public key and include a confirmed register certificate transaction in a block. The confirmed transaction can include a second registration number for the certificate. The QSBN can receive the confirmed transaction and store in a database the fingerprint, the first registration number, and the second registration number. The QSBN can generate a pending certificate revocation transaction for the certificate, and transmit the pending transaction to the blockchain system.

SECURE TRANSMISSION

Resumen de: US20260238680A1

A method of monitoring a transmission includes obtaining one or more values of bit error rate (BER) of the transmission received at a receiver; and determining that the transmission has been intercepted based on a deviation of the obtained bit error rate value from an expected bit error rate value.

RECEPTION DEVICE, QUANTUM CRYPTOGRAPHY SYSTEM, INFORMATION RECONCILIATION METHOD, AND COMPUTER-READABLE MEDIUM

Resumen de: US20260238470A1

0000 A reception device comprises: a quantum communication unit that receives key information, including information from which a shift key is derived; a random number generation unit that generates a random number in which a portion of the key information is compressed on the basis of a characteristic value of noise in the reception of the key information; and an error correction unit that performs information reconciliation on the basis of the random number.

METHOD AND APPARATUS FOR HANDLING SECONDARY NODE OPERATIONS IN MULTI-RAT DUAL CONNECTIVITY

Resumen de: US20260239122A1

The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). The method includes receiving at least one User Equipment (UE) capability information from at least one UE, wherein the at least one UE capability information comprises a Post Quantum Cryptography (PQC) information, transmitting an SN addition request message to at least one SN with the PQC information, based on the at least one UE capability information, receiving an SN addition request acknowledge message from the at least one SN, if PQC is supported between the at least one UE and the at least one SN, and receiving an SN addition request reject message from the at least one SN, if PQC is not supported between the at least one UE and the at least one SN.

KEY MANAGEMENT DEVICE, QUANTUM CRYPTOGRAPHY COMMUNICATION SYSTEM, KEY MANAGEMENT METHOD, AND COMPUTER PROGRAM PRODUCT

Resumen de: US20260238621A1

According to an embodiment, a key management device includes one or more hardware processors configured to: generate a first global key based on a first random number; add, to a first packet including the first global key, first path information indicating a relay path for the first packet; and encrypt the first packet with a local key shared with a different node and transmit the encrypted first packet to the different node.

PHOTON DETECTOR, QUANTUM CRYPTOGRAPHY SYSTEM, AND CIRCUIT

Resumen de: US20260238466A1

There is provided a photon detector including an avalanche photodiode, a bias voltage application circuit that applies a bias voltage to an input of the avalanche photodiode, a gate voltage application circuit that applies a gate voltage for superimposing an alternating-current component on the bias voltage, a filter disposed on an output side of the avalanche photodiode, and an impedance adjustment circuit disposed between the avalanche photodiode and the filter.

MULTIMODAL MEMORY INTEGRATED CIRCUIT WITH NATIVE-SPEED ENCRYPTED DATA PROCESSING AND GRACEFUL CRYPTOGRAPHIC DEGRADATION ARCHITECTURE FOR USE IN UNBREAKABLE CRYPTOGRAPHY

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.

METHODS, DEVICES, AND SYSTEMS FOR EFFICIENT MULTINOMIAL DISTRIBUTION SAMPLING

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.

Method and apparatus for generating random numbers for encryption and decryption of data transmitted and received by digital walkie-talkie using quantum random numbers

Resumen de: KR20260123177A

0001a 본 발명에 따른 디지털 무전기의 송수신 데이터 암복호화를 위한 난수 생성 방법은, 양자난수생성기로 양자난수를 생성하는 단계; 상기 양자난수의 난수성을 검증하는 단계; 및 상기 양자난수의 난수성이 검증되면, 난수발생기로, 상기 양자난수를 잡음원으로 사용하여 난수를 생성하는 단계를 포함하는 것을 특징으로 한다.

High Current Column Grid Array Pillars

Resumen de: US20260240010A1

0000 A column grid array for low-voltage, high-current delivery uses pillars formed from bundles of parallel conductive filaments consolidated into metallic plugs at each end with an unconstrained compliant span between the plugs. The pillars are joined in a two-dimensional grid between opposing substrates to deliver aggregate current with controlled impedance while accommodating differential displacement without plastic deformation. Interleaving power and return pillars reduces loop inductance and transient droop. Optional sleeves or elastomer collars manage lateral stability; spare pillars and test features enable in-situ continuity verification and activation of redundancy. Methods include preparing filament bundles, consolidating ends by metallurgical bonding, joining plugs to substrate pads, and arranging pillars at grid pitch suitable for wafer-scale or module-scale power distribution.

METHOD AND SYSTEM FOR FACILITATING POST QUANTUM SECURE PRIMARY AUTHENTICATION OF A SUBSCRIBER

Nº publicación: US20260239002A1 13/08/2026

Solicitante:

SAMSUNG ELECTRONICS CO LTD [KR]
Samsung Electronics Co., Ltd.

Resumen de: US20260239002A1

0000 The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). The present disclosure relates to a method and system for facilitating post quantum secure primary authentication of a subscriber. The method by an UE discloses applying a quantum safe cryptographic technique on a quantum based public key associated with a home network, generating an encrypted quantum safe shared key based on the applied quantum safe cryptographic technique, transmitting the encrypted quantum safe shared key along with cipher-text value and MAC-tag value associated with the subscriber to a network entity for authenticating the subscriber.