11results about How to "Verify integrity" patented technology

The embodiment of the invention discloses a database integrity verification method, device and system, a medium and equipment, and the method comprises the steps: firstly, injecting a section enhancement code at a preset tangency point position of a database; then, when a modification operation for the database is received, executing the section enhancement code to generate a verification hash value corresponding to the modification operation; and further, calling a password service of a trusted third party, and performing data signature on the target data corresponding to the modification operation by the verification hash value through the password service. And finally, verifying the database data based on a hash operation message authentication code obtained by verifying the hash value and the data signature so as to determine whether the database is tampered or not.

This invention discloses an archived data access control method based on privacy computing, belonging to the field of archived data privacy computing access control technology. To solve the problem that long-term archived data in holographic media is prone to exposing query objects, access frequency or permission relationships during multi-subject query, authorized reading and auditing processes, this invention achieves the technical effect of reducing the risk of leakage of sensitive usage information under the premise of verifiable access and auditing through the collaborative processing of archived access packages, private information retrieval or anonymous access, zero-knowledge authorization proof, threshold authorization reading capsule and commitment-based audit log.

The invention discloses a data desensitization processing method based on AI. The data desensitization processing method comprises the following steps that 1, multi-modal data preprocessing and sensitive field intelligent identification are carried out; step 2, intelligent matching of a desensitization strategy; 3, performing multi-dimensional verification and self-adaptive optimization on the desensitization effect; according to the method, the sensitive field recognition precision is high, the efficiency is excellent, a recognition framework with the rule engine and the fine-tuning AI model fused is adopted, the rule engine achieves rapid recognition of the high-confidence sensitive field, and the recognition efficiency is improved; the fine-tuning AI model is trained through an industry exclusive sample set, has good industry adaptability, improves the recognition precision in a complex scene, eliminates recognition conflicts in combination with a D-S evidence theory, and has the overall recognition accuracy not lower than 96%, which is significantly superior to that of an existing single recognition method.

The invention relates to the technical field of virtual systems on chip, and discloses a virtual system on chip, an I-O pin multiplexing simulation method and device thereof and a storage medium. Wherein each virtual on-chip device of the virtual on-chip system comprises a plurality of virtual ports, the virtual I O module comprises a plurality of virtual off-chip ports, a plurality of virtual on-chip ports and a plurality of input and output marks, and the plurality of virtual off-chip ports and the input and output marks are in one-to-one correspondence with a plurality of pins of a virtualized chip. The plurality of virtual on-chip ports are in one-to-one correspondence with a plurality of functions of a plurality of pins of a virtualized chip. The on-chip port configuration module is used for recording the pairing relationship between the virtual on-chip ports and the virtual ports, and the pin configuration detection module is used for confirming the pairing relationship between the virtual off-chip ports and the virtual on-chip ports according to a user program. And the input driving module and the output driving module are respectively used for driving data input and output. The system can truly simulate the multiplexing function of the I-O pin of the SoC chip, and can completely verify the user program.

The invention discloses a Bluetooth data encryption method based on a 32-bit chip, and the method comprises the following steps: S1, determining an encryption and decryption key through a Bluetooth end and an external opposite end, encrypting the encryption and decryption key through employing a first safety storage key, and obtaining a first ciphertext, and storing the first ciphertext; s2, when the Bluetooth end receives the second ciphertext and transmits the second ciphertext to the MCU, the MCU reads the first ciphertext; s3, decrypting the first ciphertext through the first secure storage key to obtain an encryption and decryption key, decrypting the second ciphertext by using the encryption and decryption key to obtain a plaintext, and adding one to the use count of the first secure storage key; and S4, destroying the first secure storage key reaching the upper limit of the number of times of use, and generating a second secure storage key to encrypt the plaintext and the encryption and decryption key. According to the invention, the communication between the external Bluetooth module and the MCU and the processing security of the MCU after receiving the data can be effectively ensured, the key is prevented from being easily acquired, and the reverse analysis attack aiming at the embedded equipment can be effectively prevented.

This invention proposes an air conditioner comprising: a controller, which includes a first control module and a second control module. The second control module is configured to: retrieve first software version information from a memory when the air conditioner is powered on; verify the first software version information; if the verification of the first software version information fails, retrieve second software version information; determine a second verification formula based on the second software version information; verify the second software version information based on the second verification formula; and if the verification is successful, store the second software version information in the memory to replace the first software version information. This invention can verify the second software version information based on a specific formula and store it in memory upon successful verification, thereby ensuring the consistency of the checksum in the memory without increasing costs, avoiding problems caused by changes in the checksum in the memory, and improving the reliability of the air conditioner.

The application relates to the technical field of power system safety monitoring, and discloses a power monitoring safety protection control system and method, which comprises a master station safety controller, a terminal safety verification unit and a safety verification channel; the master station safety controller responds to a control instruction of a monitoring master station, performs foresight simulation on the instruction, and generates a verification data packet containing a physical state expected vector; the terminal safety verification unit receives an original control instruction and the verification data packet, and performs cooperative arbitration; the cooperative arbitration process comprises: the terminal safety verification unit performs localized consequence simulation based on a built-in local physical micro model, generates a local predicted state vector, and compares the vector with the physical state expected vector issued by the master station; according to the comparison result, the terminal safety verification unit generates and executes a permission or blocking decision on the control instruction. Through the physical layer cooperative verification of the master station and the terminal, the application effectively protects malicious control instructions which have physical hazards on the power system.

The invention relates to an automatic video archiving method, system, device and equipment based on a scheduled task. The method comprises the following steps: acquiring load data of each video node and acquiring a preset video plan from a message queue; performing distribution processing by adopting a Raft consistency algorithm according to the load data and a preset video recording plan to obtain a video recording task; the method comprises the following steps: automatically acquiring real-time video data from a monitoring platform according to a video recording task of each video recording node, and curing the video data to obtain a video recording file; obtaining metadata of the video file; transmitting each video file and metadata thereof to a block chain and / or an enterprise cloud for storage; and verifying the corresponding video file on the block chain by adopting an intelligent contract and / or zero-knowledge proof according to the metadata, and determining whether the corresponding video file is successfully and automatically archived or not. According to the method, the Raft consistency algorithm and the block chain are combined, and automatic processing and data protection of the video file in the process from generation to archiving are achieved.

The invention provides an encryption and decryption method and system based on a national and cryptographic hybrid algorithm, and the method comprises the steps: carrying out the signing calculation of to-be-encrypted data through a first end, and obtaining a first message signature; performing symmetric encryption calculation on the to-be-encrypted data through a symmetric encryption algorithm to obtain a first ciphertext; performing asymmetric encryption calculation on the first message signature through an asymmetric encryption algorithm to obtain a second ciphertext; an access request is initiated to the second end, and the second end receives a request parameter sent by the first end and performs decryption calculation on the second ciphertext through an asymmetric encryption algorithm to obtain a first message signature; performing decryption calculation on the first ciphertext through a symmetric encryption algorithm to obtain to-be-encrypted data; when the first message signature is complete, processing the to-be-encrypted data to obtain return data; and the returned data ciphertext is sent to the first end, so that the problem that data transmission is easily attacked and tampered is solved, and the data security is improved.

The invention discloses a software verification method and device, relates to the technical field of computers, and mainly aims to improve the problem confirmation efficiency after determining that software is tampered. According to the main technical scheme, the method comprises the steps of obtaining a machine code; calculating a first check code of each binary instruction in the machine code according to a preset check algorithm; replacing a placeholder instruction at a specified position of each binary instruction with the first check code of each binary instruction to obtain a target machine code, so that after the target machine code is linked as target software and published, the check end generates machine codes corresponding to the target machine code by using a preset check algorithm, according to the first check code of each binary instruction and the second check code of each binary instruction, checking each binary instruction in the target software according to the first check code and the second check code of each binary instruction. The method and the device are used for software verification.

The application provides a dynamic tool integration method and system of an intent-driven AI conversation system, comprising the following steps: S5, according to a state persistence record, extracting resource occupation information from a transaction log, performing resource release on each heterogeneous component, cleaning up a temporary context, and obtaining a released resource list; S6, according to the released resource list, retrieving a breakpoint state snapshot and a transaction log from a distributed database, reconstructing a tool chain execution flow history state, and obtaining a fault context analysis result; and S8, according to a context recovery state and a semantic feature vector, updating a tool chain execution flow, re-distributing computing resources through a heterogeneous component coordination mechanism, and obtaining a task continuity confirmation result. The application significantly improves the recovery efficiency and resource utilization rate of the tool chain under an abnormal scenario, and guarantees the task continuity and system robustness under a high-concurrency environment.