22 results about "CPU card" patented technology

The invention relates to the technical field of CPU card chips, and discloses a CPU card chip test method, device and equipment and a storage medium, and the method comprises the steps: carrying out the data collection of a CPU card chip, and obtaining an initial test data matrix; constructing a test parameter association diagram of the initial test data matrix and predicting missing data to obtain a complete test data matrix; performing principal component analysis on the complete test data matrix to obtain an effective test data set; constructing a multi-level fuzzy set according to the effective test data set to obtain fusion test data; and inputting the fusion test data into a variational auto-encoder for self-supervised pre-training, executing conditional interpolation by using a diffusion state space model to obtain a defect detection result and an uncertainty estimation value, and realizing optimal fusion of electrical characteristics and functional test data by using a multi-stage fuzzy set and an adaptive weight adjustment mechanism. Complementary advantages of dual-channel data are fully utilized, and a more comprehensive and accurate test result is provided.

The invention relates to the technical field of CPU card security chips, and discloses a low-power-consumption design method and system for a CPU card security chip, and the method comprises the steps: carrying out the current waveform sampling of a secret key storage region, an encryption operation unit and an identity authentication processor of the CPU card security chip, recording current data when the CPU card security chip executes data encryption, identity authentication and security calculation to obtain a feature parameter set of the security function module; establishing an encryption operation power consumption model and an identity authentication power consumption model, and obtaining power consumption characteristic matrixes under different key lengths through piecewise linear fitting; classifying the security application tasks to obtain a multi-level security task classification table; according to the multi-level security task classification table, a differential power consumption attack protection strategy is executed, the working voltage and frequency configuration sequence of each security function module is calculated, the optimal balance of power consumption and performance is achieved under different key lengths, and the comprehensive performance of the CPU card security chip is improved.

The invention relates to the technical field of CPU card chips, and discloses a self-adaptive power consumption control method and system of a CPU card chip. The method comprises the following steps: collecting power consumption characteristic data of a CPU card chip in different working load states, and constructing a power consumption signal model; creating a generalized power consumption control operator, and performing matrix decomposition on the power consumption characteristic data of the CPU card chip to obtain a power consumption weight vector; performing dual-state monitoring and feature selection on the power consumption state vector and the performance state vector which are acquired in real time to obtain a low-power-consumption sparse control matrix; performing parameter optimization training through a five-layer fuzzy neural network to obtain a target inverse system model; the target inverse system model and the original power consumption control system are connected in series to form a pseudo-linear system, a linear closed-loop controller is added, and the decoupling control system is obtained, compared with a traditional method, the decoupling control system has the advantages that the energy efficiency ratio of a CPU card chip is remarkably increased, and guarantee is provided for efficient operation in various working environments.

The invention discloses an internet-of-things communication encryption system for CPU card management, and relates to the technical field of internet-of-things encryption, the internet-of-things communication encryption system comprises an initialization module, a card issuing module, a card reading module and a platform end, a distributed key library is constructed, and according to an authority control mechanism of an alliance chain of the distributed key library, the card issuing module and the card reading module are encrypted. The platform secret key, the manufacturer secret key, the tenant secret key and the project secret key are stored in an isolated mode and are only authorized to be used by the corresponding platform, the manufacturer, the tenant and the project, and under the condition that permission of the opposite side is not obtained, the secret keys cannot be called in an unauthorized mode. The design of segmented keys is adopted, so that a platform, a manufacturer, a tenant and a project respectively hold independent key segments, the problem caused by leakage of a single key is reduced to the minimum, even if an attacker gets one key, the attacker cannot read data of a CPU card, and the data of the CPU card cannot be read by the attacker. Even if an attacker cracks the platform key, the attacker cannot communicate with the initialization device, the card issuing device and the card reading device.

The utility model relates to an encryption CPU card reader, which comprises a control processing unit and a structural shell, the control processing unit is a core processing center of the encryption CPU card reader, completes input and output control, card reading and verification operation of the card reader, and has the functions of record management, authority management, alarm, data encryption and the like, the control processing unit comprises an MCU module, a signal input module, an anti-disassembly module, a Wiegand output module, an acoustic lamp control module, a PSAM card read-write module and a radio frequency circuit module. And the structural shell is an installation platform of the control processing unit, has dustproof, shockproof and waterproof performances and the like so as to adapt to use under various environmental conditions, and meanwhile, facilitates the overall installation of the card reader under various installation environments. The encrypted CPU card reader disclosed by the utility model is a card reading device applied to an access control system and an attendance system, and is used for reading the information of the CPU card encrypted by an algorithm, encrypting and decrypting by adopting the algorithm, and ensuring the safety of the information of the CPU card.

The invention provides a radio frequency card water controller terminal program upgrading method and system, and the method comprises the steps: dividing an upgrading program file into a plurality of data sets through an upgrading program maker, and writing the plurality of data sets into an internal storage space of a high-capacity non-contact CPU card based on a preset sequence, security and uniqueness verification is carried out on the high-capacity non-contact CPU card, after the verification is passed, the radio frequency card water controller carries out cyclic traversal on each file unit on the high-capacity non-contact CPU card, and data of each file unit of the high-capacity non-contact CPU card is collected into an RAM on an MCU chip of the radio frequency card water controller; and after each file unit is read and decrypted, the MCU of the radio frequency card water controller obtains an upgrading program file, the upgrading program file is stored in firmware of the radio frequency card water controller, and program upgrading of the terminal of the radio frequency card water controller is completed. Programs of the water controller can be conveniently and flexibly upgraded.

The application discloses a kind of distributed PLC edge computing systems, comprising: including several PLC units, the PLC unit includes CPU card piece, IO card piece, edge computing card piece and alarm device, the CPU card piece is connected with IO card piece and edge computing card piece respectively, IO card piece and alarm device are connected;The IO card piece is used to obtain the original data required for edge computing and is transmitted to CPU card piece, and receives alarm instruction from CPU and drives alarm device;The CPU card piece is used to forward the model parameter required for edge computing, original data to edge computing card piece, and decides whether to issue alarm instruction according to the calculation result of edge computing card piece;The edge computing card piece is used to calculate according to the original data received to determine whether to alarm;The alarm device is used to alarm according to the received alarm instruction;The application can greatly improve the efficiency and stability of system processing data.

This invention discloses a CPU card security authentication system, relating to the field of CPU card security encryption technology. It includes a consortium blockchain, property management cloud, M2M soft bus, card issuing device, and card reading device. The system constructs a distributed asset management technology based on blockchain, managing device assets, card assets, and key assets separately. It shares keys through the blockchain and achieves network-independent direct communication via the M2M soft bus. This is applied to CPU card issuing and synchronization operations, ensuring end-to-end encrypted communication is not intercepted or cracked by any third party. This invention combines IoT technology, key segmentation technology, and blockchain technology to achieve distributed asset management and end-to-end encryption, thereby achieving secure authentication of CPU cards at a lower cost and solving the problem of widespread CPU card application.

The invention relates to the technical field of embedded system security, and discloses a CPU card data writing method and device based on deep learning, and the CPU card data writing method based on deep learning comprises the steps: deploying a lightweight neural network model to carry out writing request prediction; establishing a two-stage write-in protection system to identify an abnormal write-in behavior; realizing a control flow integrity protection algorithm to prevent code injection attacks; constructing a data flow monitoring system to guarantee the security of sensitive data; and detecting an abnormal write-in mode by using a behavior portrait algorithm. By integrating various security technologies, the method realizes the balance between the write-in performance and the security protection in a resource-limited CPU card environment. The CPU card supports small program intelligent awakening and write-in demand prediction, prevents multi-dimensional security threats, solves the problems that a traditional CPU card is insufficient in data write-in dynamic adaptive capacity and prone to being attacked, and improves the data processing capacity of the CPU card in high-security scenes of financial payment and identity authentication.

The invention discloses a CPU card security authentication system, and relates to the technical field of security encryption of CPU cards, the CPU card security authentication system comprises an alliance chain, a property cloud, an M2M soft bus, card issuing equipment and card reading equipment, and a distributed asset management technology is constructed based on a block chain to manage equipment assets, card assets and key assets respectively; a key is shared through a block chain, direct communication irrelevant to a network environment is realized through an M2M soft bus, and the method is applied to CPU card issuing operation and CPU card synchronization operation to realize that end-to-end encrypted communication is not intercepted and cracked by any third party. According to the invention, the IoT technology, the key segmentation technology and the block chain technology are combined, the distributed asset management technology and the end-to-end encryption technology are realized, the security authentication of the CPU card is realized at a low cost, and the problem of wide application of the CPU card is solved.

The invention relates to the technical field of data processing, and discloses a data processing method, device, equipment and storage medium for a CPU card chip. The method comprises: constructing a data verification matrix for a ROM area and a RAM area of ​​a CPU card chip to obtain a ROM verification matrix template and a RAM cache matrix; performing format verification on an input data stream to obtain a standard format data block and a non-standard format data item; performing format conversion on the non-standard format data item to obtain a converted format data block and a format conversion record; performing compression processing on an input CPU core to obtain a compressed data stream and a compression identifier; performing group encryption on the compressed data stream based on the compression identifier to obtain an encrypted data group and a MAC check value; performing consistency verification to obtain a data integrity identifier and a processing status record. The invention realizes efficient data compression and transmission under limited RAM resource conditions, reduces storage space occupancy, and ensures the continuity and stability of data processing.

Embodiments of the present application provide an entity identity authentication method for a quantum access control system. The system comprises a cryptographic CPU card, a cryptographic card reader, an access control system and a quantum cryptographic service platform, wherein the cryptographic CPU card, as an entity to be authenticated, is pre-charged with a key; the cryptographic card reader, as an authenticating entity, authenticates an identity credential of the entity to be authenticated; the access control system is used for storing, managing and authorizing user information; and the quantum cryptographic service platform is used for providing a quantum key, generating a salt required for authentication, and providing a cryptographic service. The novel identity authentication method based on electronic tag authentication is used between the entities so as to implement identity authentication between the card and the card reader. Compared with a conventional access control system, the embodiments of the present application support online authorization, enable unlocking in a power-off offline mode, enhance the difficulty of identity authentication between the entities by means of the quantum key, have high security, scalability and practicability, and comply with a cryptographic standard.

The invention relates to the field of servers, in particular to a server system, which comprises a barrel body with a connecting disc fixed at the upper end, a bottom plate fixed at the lower end of the barrel body, an annular cavity channel arranged on the bottom plate, an annular plate connected in the annular cavity channel, two communicating pipes arranged on the annular plate and a plurality of mounting strips penetrating through the side surface of the barrel body, a plurality of mounting grooves are formed in each mounting strip and are used for inserting CPU (Central Processing Unit) cards. The two ends of each mounting strip penetrate through the connecting disc and the bottom plate, a shifting plate is fixed to the middle of each mounting strip and located in the barrel body, a center shaft is rotationally arranged at the center of the connecting disc and the center of the bottom plate, a reciprocating groove is formed in the center of the center shaft, and the center of the shifting plate is slidably connected with the reciprocating groove. The LED lamp has good heat dissipation capability.

The utility model relates to a high-flow high-pressure fuel gas pre-charging control system in the field of automatic control systems. Comprising a flowmeter base meter, a flow computer, a CPU (central processing unit) card controller, an industrial control computer, a programmable logic controller, a data collector, a valve electric actuator, a UPS (uninterrupted power supply), a power monitor, an indicator lamp, a VGA (video graphics array)-to-optical fiber transceiver, a central control room display screen, a pre-charging control cabinet and a flow computer cabinet. The flowmeter base meter is installed on a gas pipeline and connected with the flow computer. And the flow computer is arranged on the flow computer cabinet body and is connected with the CPU card in a control manner. And the CPU card controller is arranged on the pre-charging control cabinet body and is connected with the industrial control computer. And the industrial control computer is also connected with a programmable logic controller, a data collector and a VGA (Video Graphics Array)-to-optical fiber transmitter. And the programmable logic controller is also connected with the valve electric actuating mechanism, the indicating lamp and the power supply monitor. The valve electric actuator is installed on the gas pipeline valve, executes the operation of opening and closing the gas pipeline valve of the programmable logic controller and drives the gas pipeline valve to be opened and closed. The data collector is connected with the background management system in a wireless mode and monitors the operation condition of the gas pre-charging system in real time. The VGA-to-optical fiber transmitter is connected with the VGA-to-optical fiber receiver through an optical fiber, the VGA-to-optical fiber receiver is connected with a display screen of a central control room of a user, and information such as instantaneous gas volume, accumulated gas volume, residual amount and valve state of the pre-charging control system is displayed on the display screen of the user. The utility model relates to a comprehensive intelligent management system which is researched and developed for high-flow high-pressure gas users and comprises metering, billing, arrearage, power-down valve closing and data remote monitoring, and pre-charging management and control are carried out on the high-flow high-pressure gas users.

The utility model discloses a multi-rate TSN endpoint physical simulation platform, and relates to the field of airborne communication, and the platform comprises an optical communication carrier plate which is used for providing a power supply interface, a communication interface and a debugging interface for a simulation slot; the simulation slot is used for accessing the communication CPU card and the multi-rate TSN communication card to carry out a simulation experiment; a plurality of simulation slots are arranged; the system has the beneficial effects that a unified software development environment is provided, and a plurality of endpoints can be configured and run on the same upper computer, so that the development and verification difficulty is reduced; physical simulation work of multiple slot endpoints can be provided, configuration of multiple endpoint physical simulation environments can be flexibly supported, and the TSN network system design verification efficiency is greatly improved; by means of the method, physical verification work can be carried out in advance under the condition that airborne endpoint equipment is not complete, the overall service design quality of the TSN is improved, and rework is reduced.

The application provides a CPU card security vulnerability detection method based on side channel communication analysis, comprising radio frequency signal sniffing and original data packet capturing, original data processing based on triple clue filtering method, interactive data security analysis based on characteristic factors and security analysis result output. The application realizes accurate detection and quantitative evaluation of CPU card security vulnerabilities through passive sniffing, data repair, feature extraction, multi-dimensional security analysis and optional replay verification, realizes accurate repair and feature extraction of sniffed data through the triple clue filtering method, forms a self-optimizing iteration mechanism combined with machine learning, establishes a quantitative security analysis system from two dimensions of random number properties and encryption correlation, and realizes full-dimensional and accurate detection of CPU card security vulnerabilities in cooperation with the replay verification.

The invention provides an off-line identity verification method and system based on a CPU card, a terminal and the CPU card. The method comprises the steps of obtaining an encrypted data packet, current verification time and a verification scene type of a CPU card; reading an encrypted data packet, wherein the encrypted data packet comprises a ciphertext obtained by encrypting identity information and authority rule data of a cardholder according to a preset encryption algorithm and a key; decrypting the encrypted data packet to obtain plaintext identity information and plaintext permission rule data of the cardholder; performing off-line verification on the plaintext identity information and the plaintext permission rule data according to the current verification time and the verification scene type to obtain an off-line verification result; if the offline verification result represents that the plaintext identity information and the plaintext permission rule data meet the preset identity verification requirements, an offline verification log is generated, and the offline identity verification method for the cardholder is completed, so that offline rapid verification and dynamic permission management and storage of the cardholder identity are realized, and the offline verification efficiency and accuracy are improved.

The present application relates to the technical field of CPU card security chips, and discloses a low-power design method and system for a CPU card security chip. The method comprises: sampling current waveforms of a key storage area, an encryption operation unit, and an identity authentication processor of the CPU card security chip, recording current data of the CPU card security chip when executing data encryption, identity authentication, and security calculation, and obtaining a characteristic parameter set of a security function module; establishing an encryption operation power consumption model and an identity authentication power consumption model, and obtaining a power consumption characteristic matrix under different key lengths by piecewise linear fitting; classifying security application tasks to obtain a multi-level security task classification table; executing a differential power consumption attack protection strategy according to the multi-level security task classification table, and calculating the operating voltage and frequency configuration sequence of each security function module. The present application achieves an optimal balance between power consumption and performance under different key lengths, and improves the comprehensive performance of the CPU card security chip.

This invention discloses an IoT communication encryption system for CPU card management, relating to the technical field of IoT encryption. It includes an initialization module, a card issuing module, a card reading module, and a platform. A distributed key store is constructed, and based on the access control mechanism of the distributed key store's consortium blockchain, the platform key, manufacturer key, tenant key, and project key are stored in isolation and authorized only to their respective platforms, manufacturers, tenants, and projects. Without the other party's permission, unauthorized access to the keys is impossible. The segmented key design ensures that the platform, manufacturer, tenant, and project each hold their own independent key segment, minimizing the problems caused by the leakage of a single key. Even if an attacker obtains one of the keys, they cannot read the CPU card data; even if an attacker cracks the platform key, they cannot communicate with the initialization device, card issuing device, or card reading device.

An embodiment of the present invention provides a PLC authorization expiration shutdown system based on a multi-point communication protocol. The system includes: a startup and shutdown system circuit board, an on-board non-contact CPU card reader / writer, and a non-contact CPU card. Among them, the non-contact CPU card is used to store PLC allowed running time data; the on-board non-contact CPU card reader / writer is used to obtain the PLC allowed running time data and send the PLC allowed running time data to the startup and shutdown system circuit board; the startup and shutdown system circuit board includes an on-board multi-point communication interface, an on-board non-contact CPU card reader / writer interface, and a control circuit for issuing an authorization expiration shutdown command to the target PLC based on the PLC allowed running time data. The embodiment of the present invention can realize the startup and shutdown management of the PLC without programming on the PLC or modifying the original program, and the implementation is simple and convenient.

The invention relates to the technical field of data processing, and discloses a data processing method, device and equipment of a CPU card chip and a storage medium, the method comprises the following steps: performing data verification matrix construction on an ROM area and an RAM area of the CPU card chip to obtain an ROM verification matrix template and an RAM cache matrix; performing format verification on the input data stream to obtain a standard format data block and a non-standard format data item; performing format conversion on the non-standard format data item to obtain a converted format data block and a format conversion record; the data stream is input into a CPU kernel for compression processing, and a compressed data stream and a compression identifier are obtained; performing block encryption on the compressed data stream based on the compression identifier to obtain an encrypted data group and an MAC check value; according to the data compression and transmission method and device, efficient data compression and transmission are achieved under the condition of limited RAM resources, storage space occupation is reduced, and continuity and stability of data processing are ensured.

The invention discloses a high-capacity communication management device and a configuration method, and relates to the technical field of electrical energy. The device comprises a core card group, an expansion card group and a special backboard. The core card set is composed of a main CPU card, a man-machine interaction interface MMI card and a power management card. The expansion card group comprises at least one hot-pluggable expansion sub-card, and the expansion sub-card comprises a network interface CPU (Central Processing Unit) card, and / or a serial interface CPU card, and / or a CAN (Controller Area Network) bus CPU card. And the special backboard is used for physical connection and data transmission between the core card group and the expansion card group. Wherein the main CPU card and each expansion sub-card run an independent operating system and a publish-subscribe message bus, and perform data interaction through the message bus. The invention constructs a communication management device with large capacity, high reliability, easy expansibility and convenient operation and maintenance, so as to improve the overall performance and engineering applicability of an electric power communication system.