19 results about "Encrypted function" patented technology

A postage generating system and method that allows for the generation of postage without the use of a PSD, while still maintaining the necessary data integrity and non-repudiation aspects. The cryptographic and accounting functions are performed separately when an indicium is generated and reconciled to ensure that every transaction is properly accounted for and funds are deducted from the user's account. The cryptographic functions for an indicium are performed utilizing a cloud-based Hardware Security Module (HSM). Transaction records for indicium generated by an HSM are stored in a database. The accounting is performed by a transaction server, separate and remote from the HSM, to make updates to the client's account to account for generated indicia. An Integrity Monitor Server monitors the consistency of the transactions, i.e., that every transaction performed by an HSM is properly accounted for by the transaction server and funds are deducted from the user's account.

The invention discloses a hard disk encryption management method, device and equipment and a readable storage medium. The hard disk encryption management method comprises the steps that a hard disk receives a manufacturer custom command from a host; analyzing the manufacturer custom command to obtain an encrypted management command; when the encryption management command is a password setting command, if a first logic space of the hard disk is in an unencrypted state or an unlocked state, converting a first plaintext password into a first ciphertext password through an encryption algorithm; loading the first ciphertext password to an encryption engine of the hard disk, converting the first preset data into first encrypted data by the encryption engine by taking the first ciphertext password as a key, and storing the first encrypted data to a standby area corresponding to a first logic space of the hard disk; and after the first encrypted data is successfully stored, setting the first logic space of the hard disk to be in an encrypted and unlocked state, and replying a command execution result to the host. According to the method and the device, the applicability of a hard disk encryption function is greatly improved, and the password security is greatly improved.

A control system for a vehicle includes a first electronic control unit (ECU) configured to obtain data for communication to another ECU of the vehicle and to encrypt the data using a first key pair to obtain encrypted data, calculate a message authentication code (MAC) using a second key pair, append the MAC to the encrypted data to obtain a MAC-appended encrypted data, and transmit the MAC-appended encrypted data via a controller area network (CAN) of the vehicle, and a second ECU configured to receive the MAC-appended encrypted data from the first ECU via the CAN and to using the second key pair, attempt to verify the MAC and obtain the encrypted data, and in response to verifying the MAC using the second key pair, decrypt the encrypted data using the first key pair to obtain the data.

The utility model relates to the technical field of file storage management devices, in particular to a file storage management device with an encryption function, which comprises a stand column and square plates, the outer wall of the stand column is fixedly connected with the inner sides of a plurality of square plates, the outer sides of the square plates are connected with adjusting structures, and the front side and the rear side of each adjusting structure are respectively connected with an opening and closing structure. The top space of the straight plate is adjusted, after the top space of the straight plate is adjusted, the nut rotates leftwards through the screw rod, the left side of the nut abuts against the right side of the straight plate, friction force is formed between the nut and the straight plate at the moment, fixing of the screw rod and the partition plate is completed, and then a corresponding file is placed on the straight plate to achieve file placement. The space is adjusted, the occupied area is reduced, files are prevented from being separated, the files can be conveniently used and searched, and the file storage management device can classify the files.

A memory device includes a radio-frequency identification (RFID) component configured to communicate with an external system for transmitting a device identifier to the external system and for receiving data from the external system; one or more memory dies configured to store the data; a communication interface configured to transmit a message that includes a digital signature and the device identifier for authenticating the memory device; and a secure memory controller configured to manage operations of the one or more memory dies. The secure memory controller is configured with a cryptographic function for generating the digital signature based on asymmetric encryption. The RFID component provides a trigger signal to the secure memory controller based on the RFID component being activated by the external system. The secure memory controller generates the digital signature, for being provided in the message, based on the secure memory controller receiving the trigger signal.

Embodiments of the present application provide a memory database encryption method, a database system and an electronic device. The method comprises: in response to an encryption function start request, encrypting a memory database and writing the encrypted memory database into a first persistent file, and encrypting real-time commands for the memory database and writing the encrypted real-time commands into a second persistent file; deleting a third persistent file to determine the first persistent file as a backup file of the memory database, and deleting a fourth persistent file, the third persistent file being a backup file that is not encrypted before the encryption function is started, and the fourth persistent file being a command log that is not encrypted before the encryption function is started, thereby achieving transparent encryption of the memory database and improving data security.

The invention discloses a message negotiation method, a secret key downloading method and electronic equipment. Sending a starting message to the key distribution equipment; receiving a binding message and a binding message signature of the key distribution equipment; verifying the binding message and the binding message signature, and constructing a first exchange message based on the binding message after the verification is passed; the first exchange message is signed through an encryption algorithm to obtain a first exchange message signature, the first exchange message signature is sent to the secret key distribution device, and the encryption algorithm integrates a digital signature and a public key encryption function in a unified mode to form a high-strength short secret key; receiving a second exchange message and a second exchange message signature sent by the key distribution device; and verifying the second exchange message and the second exchange message signature, and completing message negotiation to obtain a key encryption key and a message verification code key after the verification is passed. The key receiving device does not need to support a complete session key generation process, and the requirement for the hardware performance of the key receiving device is further lowered.

The invention discloses a robot system with a misoperation falling prevention protection function and a use method of the robot system. The method comprises the steps that by rewriting a bottom layer parameter file of a robot control system, an output signal related to clamping jaw control is configured to be in a read-only mode, so that manual forced output or key false triggering is forbidden; a position verification function module is developed, a target coordinate X is input, a current actual coordinate Y of the robot is obtained, and a difference value Z of the X and the Y in translation, posture and external axis dimensions is calculated; a verification logic is integrated in a claw loosening or releasing control program, and only when a difference value Z is within a preset tolerance range N (such as 0.1 mm), an action signal is allowed to be output; and packaging the control logic into an encrypted function module. Starting from the two aspects of bottom layer authority and spatial position accurate verification, the workpiece or clamp falling accident caused by manual misoperation is fundamentally eradicated, zero-falling protection is achieved, no sensor needs to be additionally arranged, and system safety and operation convenience are both considered.

This invention discloses a hardware circuit supporting SM3 encryption, relating to the field of information security cryptography. It includes a register configuration component, an initialization and update component, and an SM3 hash calculation component integrated at the top layer of the chip and interconnected in pairs. The register configuration component includes a message register, an IV value setting register, a status register, a hash result register, and an SM3 control register. The register configuration component is connected to the CPU via a CPU_IF interface, through which the CPU performs read and write operations on each register. The initialization and update component receives the message data to be encrypted from the message register and the IV value from the IV value setting register, packages the received IV value as the initial IV value and the message data to be encrypted, and forwards it to the SM3 hash calculation component. The SM3 hash calculation component calculates the hash value based on the message data and the IV value, performs endianness conversion, and sends the hash result back to the hash result register. This invention enhances the overall security and computational speed of the chip system.

This invention discloses a low-resource AES encryption system and method based on heterogeneous computing, belonging to the field of information security hardware acceleration technology. Based on the traditional AES algorithm, a fixed-round multiplexing control module and an external dedicated XOR circuit are introduced. The fixed-round multiplexing control module sequentially executes SubBytes and ShiftRows transformations within the FPGA. By employing in-round operation multiplexing and state register sharing, high-level reuse of logic resources is achieved, significantly reducing the FPGA's lookup table usage. By decomposing the MixColumns operation into a two-stage pipeline structure of internal FPGA xtime transformation and external XOR circuit, and using an external 74LVC574 register to synchronize the data path in real time, precise matching of computational latency and area optimization are achieved. This system implements secure and reliable AES encryption with limited hardware resources. Combined with a dynamic masking mechanism, effective protection of intermediate states is achieved, significantly enhancing the system's resistance to side-channel attacks and reducing hardware costs and resource overhead while ensuring throughput.

The invention provides an order-preserving encryption method, a data query method and a data storage method. The order-preserving encryption method comprises the following steps: acquiring plaintext data, and performing order-preserving random mapping on the plaintext data to obtain first order-preserving coded data; carrying out decryptable encryption processing on the plaintext data to obtain decryptable ciphertext data; and splicing the first order-preserving coded data and the decryptable ciphertext data to obtain order-preserving ciphertext data. And according to the size sequence relationship of the first order-preserving codes, operations such as sequence-related comparison sorting query and the like in the secret state database can be quickly completed, and a plaintext form result corresponding to query is obtained. Compared with a common order-preserving encryption algorithm, the order-preserving coding encryption method and device can realize an efficient and safe order-preserving coding encryption function with a controllable ciphertext length.

The application provides an encryption method for an in-memory computing system, and belongs to the field of neural network accelerators.The application uses a field effect transistor device with a gate storage layer and bipolar transport characteristics as a ciphertext weight storage unit capable of realizing XNOR operation;the non-volatile gate storage mechanism is used to realize storage of ciphertext weights, and the controllable bipolar transport characteristics can realize XNOR operation of inputs and ciphertext weights. The application can realize in-situ decryption multiplication on ciphertext weights by using only one device, and the array formed thereby can realize an in-memory computing system with an encryption function. Compared with a conventional MOSFET-based implementation mode, the application can significantly reduce hardware overhead, and is conducive to implementation of a large-scale encrypted neural network accelerator chip.

This disclosure provides an SRv6 protocol forwarding path transmission method, apparatus, electronic device, and computer-readable storage medium, relating to the fields of network technology and security technology. The method includes: filling an SRv6 data packet with a list of encrypted segments generated corresponding to multiple target forwarding nodes; determining the random key and encryption function parameters corresponding to the target forwarding node, and the encrypted node network address parameters of the next forwarding node, based on the SRv6 data packet sent by the previous forwarding node; decrypting the function parameters corresponding to the target forwarding node and the node network address parameters corresponding to the next forwarding node based on a first decryption key and a second decryption key; replacing the filled node network address parameters with the target address, and forwarding the SRv6 data packet to the next forwarding node. This disclosure significantly increases the difficulty for attackers to intercept the complete forwarding path and service processing rules, effectively protecting customized paths from interception and eavesdropping.

The invention discloses a communication method and device, relates to the technical field of communication, and can reduce the tedious degree of an access process, shorten the access duration and improve the communication performance when terminal equipment roams from first equipment to second equipment. The method comprises the following steps: a first device sends first information to a main access device under the condition that a whole network and downlink encryption function is opened; the first information comprises an encrypted pairwise temporary key PTK, and the PTK is the PTK obtained by interaction between the first equipment and the terminal equipment; the main access device sends second information to one or more second devices associated with the main access device according to the first information; wherein the second information comprises the encrypted PTK; the second equipment is other FTTR equipment except the first equipment in the FTTR equipment associated with the main access equipment.

1. The name of the design product: USB flash disk with encryption function. 2. The use of the design product: for storing file encryption. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

This invention discloses a white-light communication μLED device with physical-layer temporal encryption, along with its encryption method and system. The device is based on an InGaN / GaN blue μLED array, with orange-red μLED encryption units based on organic long-afterglow materials integrated on adjacent mesa via a masking process. These encryption units generate controllably decaying afterglow emission after the pulsed current stops. By adjusting the pulse parameters, the duration and brightness of the afterglow can be changed, thereby writing encrypted information in the temporal dimension. The blue unit outputs a high-speed communication signal, while the orange-red unit emits afterglow carrying the ciphertext. The two lights mix in space to form a stable white light output. This structure simultaneously achieves illumination, high-speed communication, and physical-layer encryption in a single device. This invention offers a highly concealed encryption mechanism, a large modulation bandwidth, a simple device structure, and compatibility with existing systems, providing crucial hardware support for high-security visible light communication.

A matrix code based on pan-artificial intelligence, comprising three layers of structure from an outside to an inside, namely, an outer open code area, a core layer code area, and a matrix core layer code area; the outer open code area is generated by AI software according to specific requirements; the core layer code area has a firewall layer and advanced encryption functions, and the core layer code area manages and controls the outer open code area; the matrix core layer code area serves as the most core intervention and correction method of AI, acting as a deep encryption core information zone. Through the use of multi-layer structures and optical media composite materials, the information storage capacity is significantly improved to meet the needs of the big data era; the dual encryption mechanism of the core layer and matrix core layer effectively prevents information leakage and tampering, improves security.

A communication method and an apparatus, relating to the technical field of communications, and capable of reducing the complexity of an access process, shortening the access duration, and improving communication performance when a terminal device roams from a first device to a second device. The method comprises: when an entire network uplink and downlink encryption function is enabled, a first device sends first information to a primary access device, the first information comprising an encrypted pairwise transient key (PTK), and the PTK being a PTK obtained by interaction between the first device and a terminal device; and on the basis of the first information, the primary access device respectively sends second information to one or more second devices associated with the primary access device, wherein the second information comprises the encrypted PTK, and the second device is a fiber to the room (FTTR) device other than the first device among FTTR devices associated with the primary access device.

The present application relates to a voice encryption method for a satellite mobile communication system in the technical field of communications. The method comprises: modifying a Tiantong terminal so that the Tiantong terminal can communicate with a cryptographic device; providing a voice encryption function only by adding an encryption and decryption driver and a cluster vocoder on a satellite mobile communication software protocol stack conforming to the Tiantong protocol standard, so as to realize the voice encryption and decryption function of a cluster service, thereby eliminating the need for changing a core network configuration; the Tiantong terminal interacting with the cryptographic device to obtain a synchronization frame, a key stream, a frame number, encryption control information, etc. required for a voice encryption and decryption process; and the Tiantong terminal interacting with the cryptographic device to obtain an encrypted voice frame number, embedding the frame number into a voice and transmitting the voice to a receiving end, and the receiving end sending the voice to the cryptographic device to obtain a decrypted voice, thereby completing encrypted communication. The voice encryption method in the present application achieves the security requirements of satellite mobile communication systems on the basis of minimal modification.