79 results about "Multiple encryption" patented technology

The invention relates to the technical field of medical information and block chain crossing, in particular to a medical image co-processing system and method based on a block chain value network, and the system comprises a block chain network, a privacy calculation gateway, an intelligent contract module, a hybrid storage module and a communication module. The intelligent contract module is provided with a collaborative annotation sub-module, a verifiable federated learning sub-module and a dynamic value distribution sub-module; the method comprises the steps of data preprocessing and encryption uploading, collaborative labeling and quality verification, verifiable federated learning model training, dynamic value distribution, consensus evidence storage and supervision auditing. Medical data islands are broken through by means of the block chain network, data availability and invisibility are achieved in combination with the privacy computing gateway multi-encryption technology, the contradiction between data sharing and privacy security is solved, accurate contribution and return matching is achieved through the multi-dimensional contribution degree evaluation model and the intelligent contract, and the accuracy of data sharing is improved. The traceability and the compliance are ensured by full-process operation logs and data uplink evidence storage.

The invention discloses an enterprise intranet information security solution supporting multiple encryption protection, which belongs to the field of computer network information security, and comprises a user terminal, a movable encryption gateway, a cloud authentication management platform, an operator network infrastructure and an enterprise intranet, the user performs biological characteristic and dynamic token double-factor authentication through the gateway; after the authentication is passed, the gateway sends encrypted authentication data to a cloud authentication management platform; after the platform verification is passed, calling an operator platform interface, and dynamically calculating the fine-grained network access authority of the user; an operator platform establishes an isolation security data tunnel from a mobile network to an enterprise intranet according to the security data tunnel, encryption transmission and access control based on dynamic authority are implemented for gateway data streams, multiple authentication, cloud authentication and an operator special line tunnel are integrated, and high-security and high-reliability enterprise intranet access flexibly supporting mobile office is achieved.

The invention discloses a Weyl semimetal / TMDC heterojunction photoelectric detector and application thereof, and belongs to the technical field of photoelectric devices. The photoelectric detector comprises a substrate, a TMDC material layer, a Weyl semi-metal material layer and a thin film electrode, the TMDC material layer, the Weyl semi-metal material layer and the thin film electrode are sequentially arranged on the substrate, and the TMDC material layer and the Weyl semi-metal material layer form a Van der Waals heterojunction; the device can realize switching between a photovoltaic mode and a photoconductive mode through bias voltage control; based on the characteristic, on the basis of the single photoelectric detector, XNOR logic operation can be realized under bias regulation and control and single-wavelength light beam excitation; accordingly, the invention further provides an image encryption and decryption method, according to the method, a bias voltage sequence is generated through image coding, a laser sequence is formed in combination with a secret key matrix, multiple encryption is conducted on image information through XNOR logical operation, and the concealment and safety of information transmission can be remarkably improved; and a new path is provided for development of a future security communication technology.

A method and system for synchronizing secrets in an enterprise computing network include a secret and a representation of a directed acyclic graph (DAG) generated at a secret client vault device. The representation of the DAG having a plurality of nodes and a plurality of edges, the plurality of nodes including a record node associated with the record, a leaf node associated with a second secret vault client device, and one or more intermediate nodes and the plurality of edges specify a traversal path from the record node to the leaf node. Transmitting a data stream to the second secret vault client device that comprises multiply encrypted data generated in accordance with a traversal of the representation of DAG and representations of the encryption keys associated with the record node and the one or more intermediate nodes of the DAG traversed to generate the multiply encrypted data.

The application discloses a data encryption communication method and system for a vehicle-mounted Android terminal, and relates to the technical field of digital information transmission.The method comprises the following steps: receiving multiple communication data of the vehicle-mounted Android terminal, and performing data feature analysis and encryption resource monitoring; performing encryption load adaptation analysis on multiple data feature parameters and multiple encryption resource state parameters to obtain a load resource matching coefficient; performing encryption scheme optimization based on the data feature parameters and the multiple encryption resource state parameters to obtain an encryption scheme set; and determining an optimal encryption scheme to implement differentiated adaptive encryption processing on the multiple communication data.The technical problem that the existing vehicle-mounted encryption scheme cannot be intelligently adjusted according to a communication environment and a system resource state, which leads to the influence of communication efficiency and the inability to fully guarantee security when resources are in short supply, is solved.

The invention relates to the technical field of vehicle software, in particular to a vehicle software upgrading system and method.The method comprises the steps that a user terminal initiates an upgrading request to an upgrading server; after receiving the upgrading request, the upgrading server verifies the data packet; after the verification state is successful verification, the upgrade server securely encrypts and transmits the target data packet to the target vehicle; the target vehicle receives the encrypted data and the encryption key and decrypts the encrypted data and the encryption key to obtain a target data packet; and after confirming that the target data packet is completely transmitted, executing software upgrading operation at the vehicle end. According to the method, a user can finish upgrading through the terminal without going to an offline store, so that the cost of manpower, traffic and the like is reduced, and through multiple encryption, verification and communication guarantee, data tampering and attack are prevented, the upgrading progress is fed back in real time, and the personalized upgrading requirement is supported.

Systems and methods for coordination and management of keys and instructions for multiple encryption include, responsive to receiving encrypted data that has been encrypted via a plurality of layers of encryption, accessing a coordinator to determine instructions for multiple encryption; and decrypting the encrypted data based on the instructions and utilizing a plurality of keys with a key for each of the plurality of layers of encryption.

The invention discloses an IP-based microwave communication encryption method and system, and the method comprises the steps: generating a license source file based on a time factor according to an MAC address, an available bandwidth, a modulation mode and the like of microwave equipment, importing an AES key to be used in the equipment, encrypting the license file into which the AES key is imported in an AES / RSA mixed encryption mode, and transmitting the encrypted license file to a server; generating an encryption license; on the basis of an equipment management interface or other remote communication means with encryption characteristics, the encryption license is imported, the integrity and the validity of the license are verified, and the license is stored in an encryption chip with the encryption characteristics. According to the invention, multiple encryption means and algorithms are utilized to carry out hybrid encryption to improve the storage security of the key in the device, and an external encryption chip is combined to complete the real-time encryption of the link, so that the network modulation data is subjected to low-delay lossless full encryption to improve the security, privacy and long-term stability of the whole microwave communication system.

The invention provides a visual displacement program encryption authorization method and system, and the method comprises the steps: constructing a device identifier based on a camera serial number and a USB flash disk serial number, and calculating a first device identifier abstract value to generate an authorization request file; generating a public key and a private key through a preset key algorithm to perform signature encryption on the first equipment identifier abstract value to obtain an authorization code, and storing the authorization code in an authorization file; when the visual displacement program is started, reading a current camera serial number, a current USB flash disk serial number and a current authorization file, and calculating a second equipment identification abstract value; carrying out decryption verification on the current authorization file through the public key and the private key to obtain a decryption verification value; and based on the decryption verification value, if the second equipment identification digest value is consistent with the first equipment identification digest value, authorizing the operation of the visual displacement program through the private key. According to the method, encryption authorization is performed on the visual displacement program in combination with a multi-serial number authorization mechanism and a multi-encryption mechanism, and the operation safety of the visual displacement program is improved.

This application provides a multi-core parallel encryption / decryption device. Through a configured encryption / decryption micro-engine, multiple data packets to be encrypted / decrypted, stored in DRAM memory, are distributed to multiple encryption / decryption control modules within the micro-engine. Each encryption / decryption control module calls a DMA controller to copy each data packet to SRAM memory and calls a specific encryption / decryption hardware circuit core to perform encryption / decryption operations on the messages within each data packet. This achieves parallel operation on each data packet, with each operation remaining independent and non-interfering with others, significantly improving the execution efficiency of encryption / decryption operations. It solves the problem in existing technologies where smart network cards (NICs) have limited computing power due to using a single hardware encryption / decryption circuit, making it difficult to achieve the performance indicators of high-speed networks. This helps smart NICs quickly process high-volume real-time services.

The invention provides an encryption and decryption performance evaluation method and device, equipment and a medium, and the method comprises the steps: receiving an encryption and decryption performance test instruction, carrying out multiple times of encryption and decryption tests according to a length parameter and a target throughput range through employing an encryption and decryption algorithm corresponding to an encryption and decryption algorithm type, and carrying out the evaluation of the encryption and decryption performance according to the packet loss condition in each encryption and decryption test process; the upper bound or the lower bound of the target throughput range is adjusted until the deviation between the upper bound and the lower bound of the adjusted target throughput range is smaller than or equal to a preset deviation, the adjusted target throughput range is smaller than the target throughput range before adjustment, and test data in the multiple encryption and decryption test processes are obtained, the encryption and decryption performance evaluation result is determined according to the test data, the throughput range is adjusted through iteration, the throughput difference value can quickly approach the encryption and decryption performance critical point, and therefore the test frequency is remarkably reduced, and the encryption and decryption performance test efficiency is improved.

This invention relates to the field of cargo information traceability technology, specifically to a port cargo traceability method and system based on big data. The method includes the following steps: obtaining traceable information of port cargo based on big data technology; encrypting the traceable information to obtain ciphertext and a key; uploading the ciphertext to a blockchain network to obtain a unique blockchain address; generating a public key and a private key; using the public key to encrypt the unique blockchain address and the key to obtain ciphertext for port cargo traceability; and decrypting the ciphertext using the private key to obtain plaintext for port cargo traceability, thereby obtaining the traceability information of the port cargo. This invention, by obtaining relevant cargo information through big data technology and then encrypting and storing it in the blockchain, solves the problem of poor reliability of traceability information due to the ease with which relevant port cargo information can be modified using multiple encryption methods.

The invention relates to the technical field of data transmission, in particular to a data secure transmission method and system based on multiple encryption. Comprising the following steps: generating a plurality of transmission sub-components according to data to be transmitted, and setting a first-level association structure according to all the transmission sub-components; constructing an encryption evaluation model, and generating a first-level transmission strategy according to the encryption evaluation model and all the transmission sub-components; acquiring a transmission record packet according to a preset update time node, and judging whether to correct the encryption evaluation model or not according to the transmission record packet; according to the method, the original to-be-transmitted data is preprocessed to generate the plurality of transmission sub-components, and the encryption parameters are dynamically adjusted based on analysis of the data content of each transmission sub-component, so that multiple encryption of the original to-be-transmitted data is realized, and the security of data encryption transmission is improved. And after all the transmission sub-components are aggregated, the first-level association structure is utilized to construct the verification structure of each sub-component set, and the corresponding transmission packet is generated, so that the data encryption transmission efficiency and the encrypted data processing efficiency of a receiver are improved.

This invention relates to a method for storing and tracing rebate data based on a consortium blockchain. The method includes: constructing a consortium blockchain network and configuring node roles and access permissions; receiving rebate business data; encrypting and packaging the rebate business data; writing transaction records into blocks through a consensus mechanism to complete on-chain storage; responding to traceability queries by retrieving the stored data from the consortium blockchain, verifying its integrity, and returning the result; and triggering on-chain arbitration when a cross-entity rebate dispute is detected, using the on-chain stored data as the basis. The encryption algorithms support symmetric algorithms including Chinese national cryptographic standards SM4, AES-128, and AES-256; asymmetric algorithms including Chinese national cryptographic standards SM2, RSA, and ECC; and hash algorithms including Chinese national cryptographic standards SM3, SHA-256, and SHA-3. This invention achieves tamper-proof storage of rebate data, full traceability, and on-chain dispute arbitration, supports flexible selection of multiple encryption algorithms, and meets domestic compliance and international compatibility requirements.

The invention provides a sensitive data multi-encryption method and system, and relates to the technical field of data processing, and the method comprises the steps: obtaining first basic information of current target sensitive data; according to the first basic information of the target sensitive data, evaluating the data importance of the current target sensitive data to obtain a data importance level; and matching the current target sensitive data with a corresponding applicable encryption strategy based on the data importance level to perform data encryption. The method comprises the steps of obtaining first basic information of current target sensitive data; according to the first basic information of the target sensitive data, evaluating the data importance of the current target sensitive data to obtain a data importance level; and based on the data importance level, the current target sensitive data is matched with the corresponding applicable encryption strategy for data encryption, so that the data security can be effectively improved.

The invention discloses an anti-counterfeiting material safety production method and system based on multi-encryption, and the method comprises the steps: obtaining encryption processing data corresponding to a target process in response to a signal that a production raw material of an anti-counterfeiting material enters the target process; based on preset decrypted data, decrypting the encrypted processing data to obtain decrypted processing data; based on a preset verification rule corresponding to the target process, verifying the decrypted processing data; and when the verification is passed, generating an equipment processing instruction corresponding to the decrypted processing data and sending the equipment processing instruction to corresponding processing equipment so as to process the production raw materials. Therefore, accurate anti-counterfeiting material processing control based on encryption, decryption and multiple verification can be realized, the safety and traceability of the production process are improved, and the counterfeiting risk caused by data tampering or verification failure is reduced.

Securing digital assets in a vault that interfaces with multiple different third-party wallets to store keys / mnemonics. The vault interface accepts input from multiple different party wallets to combine multiple encryptions and secure storage techniques. Numerous cryptographic mechanisms are employed to securely pull a mnemonic phrase from a third-party wallet and into an institution's vault. A customer's mnemonic phrase is securely transported from a personal wallet into a secured institution's encrypted vault using the power of HSM to encrypt and decrypt a customer's mnemonic phrase securely.

A system for runtime integrity validation to detect tampering of a mobile application is disclosed A tampering detection module is configured to monitor and detect a modification in the mobile application, and information of the modification is provided. A checksum verification module is configured to share a checksum value pertaining to the mobile application to a user. The checksum value is verified with a database. An encryption module performs multiple encryptions on the checksum value with a public key. The checksum value is decrypted with a private key or a symmetric key. The replay attack prevention module is configured to generate and amend a nonce value to the checksum in response to a request from the user for request of trust. A processing module is configured to generate a random number and return with mobile application static signature. The mobile application static signature is transmitted to the server to validate the trust and implies a success or a failure of the modification.

A method performed by one or more network node(s) of a wireless telecommunications network to dynamically manage encryption keys for multiple narrowband Internet of Things (NB-IoT) devices of the network. The network node(s) can maintain a database that stores a device profile for each of the NB-IoT devices and obtain multiple encryption keys for the multiple NB-IoT devices. The encryption keys are associated with different encryption strengths ranging from high to ultra-low encryption strengths. The network node(s) can allocate the encryption keys to the NB-IoT devices, detect a change in the condition of the network, capability or communications service of NB-IoT devices, and refresh the encryption keys accordingly to ensure that the network nodes properly balance encryption while providing efficient network performance.

The invention discloses a two-dimensional hydrogen bond organic framework material room temperature phosphor formed by self-assembly of 1-(4-carboxyl phenyl)-1H-1, 2, 4-triazole-3-carboxylic acid, and belongs to the field of new material synthesis, and the structural formula of the phosphor is (C10N3O4H7) n. The phosphor has an ultra-long phosphorescence life of 224ms and a phosphorescence quantum yield of 19.14%, and has the advantages of strong afterglow signal, color-changing phosphorescence from yellow to green, environmental friendliness and the like. The excellent performance shows that the room-temperature phosphor has important application value in the fields of advanced encryption and the like.

The invention discloses a VCX protocol-based private network data stream encryption and decryption method and system, and the method comprises the steps: S1, carrying out the real-time collection operation of data through a data collection end, and sequentially carrying out the encryption operation of the collected data through a VCX encryption network bridge for multiple times; s2, transmitting the data encrypted for multiple times to a data storage end through a wireless local area network; and S3, the VCX decryption network bridge sequentially carries out multiple times of decryption and reduction on the multiple times of encrypted data received by the data storage end, and the data storage end carries out storage operation on the reduced data. According to the method, the direct insertion type VCX encryption network bridge and the direct insertion type VCX decryption network bridge are adopted, the VCX encryption network bridge and the VCX decryption network bridge are subjected to three-layer encryption and decryption processing, the data safety is greatly improved, symmetric cryptography algorithms are adopted as encryption algorithms and decryption algorithms, it is guaranteed that the algorithms are simple and efficient, large-data-volume encryption and decryption operation can be conveniently carried out, and the encryption and decryption efficiency is improved. The problem of unsafe data transmission in the existing private network is effectively solved.

The application discloses a kind of carbon asset data encryption security processing methods, it is related to carbon asset data encryption technical field, including the following steps: setting multiple encryption algorithms, and construct encryption algorithm pool, and obtain the unified social credit code of user and corresponding ID, obtain user basic information;First scheduling generation algorithm and second scheduling generation algorithm are constructed, and the original scheduling factor of user is generated;According to user basic information, the original scheduling factor of user is corrected adjustment, and the reference scheduling factor of user is obtained;According to the reference scheduling factor of user, select encryption algorithm from encryption algorithm pool, and the carbon emission quota data of user is encrypted security processing;The present application is used to solve the existing data security encryption technology to the carbon emission quota data of multiple users when being encrypted, there is still encryption algorithm fixed single, resulting in the encryption security processing of carbon emission quota has vulnerability, cannot effectively guarantee the data security of user.

Methods and systems for managing data are disclosed. An endpoint may rely on access to sensitive data in order to provide computer-implemented services. The sensitive data may be encrypted using a volume master key (VMK). The VMK may be protected by security protocols implemented on the endpoint that may prevent access to the VMK if hardware of the endpoint has failed and / or has been altered. Thus, a hardware failure may result in an indefinite loss of access to the sensitive data. To prevent loss of data access, the VMK may be managed using secure backup and recovery processes. The processes may include multiply encrypting the VMK using key pairs managed by multiple entities, and the decryption keys may be secured in multiple locations. To sequentially decrypt the VMK during the recovery process, security checks may be performed by each entity, and the final decryption may be performed by the endpoint.

The invention discloses a lightning arrester intelligent monitoring terminal, system and method based on an electric power gap OS, and the terminal, system and method achieve a remarkable technical effect by deeply integrating the electric power gap OS in the lightning arrester monitoring terminal and implementing the end-to-end encryption communication of the whole life cycle. The potential safety hazard of data transmission of a traditional monitoring device in a public network is fundamentally solved, and the safety of the whole process of data access to a power grid Internet of Things platform is ensured through a multi-encryption technology. Secondly, according to the method, a unified framework of an electric power gap OS is utilized, standardized and plug-and-play access of the monitoring terminal is realized, the problem of data islands among devices of different manufacturers is effectively solved, and efficient fusion of monitoring data and a power grid master station system is promoted. The invention provides a safe, unified, efficient and low-operation-and-maintenance-cost intelligent monitoring solution for the lightning arrester, and has remarkable practical value for improving the real-time performance and accuracy of sensing the operation state of a power grid and supporting lightning protection of a power transmission line and intelligent operation and maintenance of the power grid.

The invention relates to a physical tamper-proof cipher machine, and belongs to the technical field of encryption in the field of electronic information. The system comprises a hardware module, an algorithm module, a verification output module and a log output module. Wherein the hardware module is composed of a plurality of encryption elements, and each encryption element comprises a substrate, a ferroelectric material, a transition metal chalcogenide, a source electrode and a drain electrode; the ferroelectric material is located on the substrate, the transition metal chalcogenide is located on the ferroelectric material, and the source electrode and the drain electrode are located at the two ends of the transition metal chalcogenide layer and are electrically communicated with the transition metal chalcogenide layer. Wherein the algorithm module comprises a coding algorithm, a reading algorithm and a verification algorithm, coding, reading, verification and operation recording of a secret key are carried out by utilizing the regular change of drain-source current caused by the coercive voltage of a ferroelectric material in a ferroelectric field effect transistor, and the secret key cannot be tampered on the hardware level.

The application discloses a method for encrypted information transmission by using single-molecule device characteristics, and belongs to the field of information encryption. The steps include: a publisher transmits a decryption condition to a receiver; the publisher sends a device recording encrypted information to the receiver; the receiver applies voltage to electrode points according to voltage values by relying on the decryption condition, and performs Raman spectrum detection on the device; Raman spectrum detection results of multiple electrode points are read according to a reading sequence; the Raman spectrum detection results are processed according to a yes-or-no judgment rule to obtain a reading result; and a corresponding relationship is substituted into the reading result to obtain the encrypted information. The encrypted information is protected by multiple encryption methods such as voltage values applied to the electrode points, the reading sequence of the Raman spectrum detection results and the yes-or-no judgment rule, so that even if a third party intercepts the device and has Raman spectrum detection capability, it is still difficult to decipher.

A computer system and method for storage and retrieval of multiple encrypted data. The system and method allow a user to first encryption data with a first key only held by the user such that the user solely possesses one of the necessary keys for later decryption of the stored and encrypted data. The firstly encrypted data is then doubly encrypted and stores the data in such a secure manner that the data can be stored on a public blockchain architecture, if desired. Full decryption of the original user data can only be performed with access to the user's initial key.

The invention provides a generative image steganography method and system based on a diffusion model and multiple encryption. The method comprises an encryption step and a decryption step. The encryption step comprises the following steps of: A1, converting an input image into a potential code through a VAE encoder; a2, performing forward diffusion on the potential code to obtain a noise vector, and further disturbing the noise vector to obtain a disturbed noise vector; a3, projecting the disturbed noise vector to a new vector space, and generating a reference image through a key and a cue word; step A4, carrying out back diffusion on the noise vector after projection to obtain a steganographic image; and a decryption step: decrypting the steganographic image according to the reference image, the prompt word and the key, and recovering to obtain an input image serving as an original image. According to the method, the information amount of a far hypertext steganography method can be borne, the bottleneck faced by traditional generative steganography when a large data amount is hidden is solved, and the effective load of a steganography channel is remarkably improved.

The invention discloses a data encryption method and device, a data decryption method and device, equipment and a computer program product, and the data encryption method comprises the steps: obtaining to-be-encrypted key data, carrying out the feature extraction, and obtaining a first feature vector of the key data; according to the first feature vector, generating a session key of the to-be-encrypted key data by using a preset session key derivation algorithm; and according to the session key of the to-be-encrypted key data, encrypting the to-be-encrypted key data by using a preset multiple encryption mechanism to obtain an encryption result of the key data. According to the method, the unique identifier is provided for each piece of data through dynamic feature extraction, so that the dynamic session key is generated, and the data security is improved; a multi-encryption mechanism enables an attacker not to deduce original data by analyzing an encryption result. Through cooperation of dynamic feature extraction and multiple encryption mechanisms, security and flexibility of data encryption are considered, and high-strength, anti-replay and anti-statistical-analysis data security protection is realized.

The application discloses a kind of based on multiple encryption's ship cargo data processing method and system, the method includes: the label code of ship cargo is scanned by the scanning code data obtained by the scanning code device of operator;According to the encryption rule corresponding to the scanning code device, the scanning code data is encrypted to obtain first encryption data, for being sent to edge cloud server by the scanning code device;In response to the request of cloud server, based on the encryption rule of the edge cloud server, the first encryption data is encrypted to obtain second encryption data, for being sent to the cloud server by the edge cloud server;Based on verification rule, the second encryption data is verified to determine the tampering possibility corresponding to the scanning code data.It can be seen that the application can effectively improve the security of ship cargo data in scanning code operation transmission, reduce the risk of being attacked and tampered with, enhance the reliability and credibility of the overall ship cargo inventory system.