12 results about "Confidentiality" patented technology

To secure the confidentiality of data stored in data storage devices, a position determination system is mechanically coupled to the data storage devices and continuously determines a position thereof. A processor, provided with an authorized location for the data storage devices, facilitates transfer of data to and from the data storage devices. Specifically, when the position of the data storage devices matches the authorized location, the processor facilitates transfer of data from the data storage devices without any modification of the data. However, when the position of the data storage means does not match the authorized location, the processor inflates the data by dispersing it in a very large set of irrelevant data.

The invention relates to the field of underwater acoustic communication, in particular to a differential Pattern time delay shift coding underwater acoustic communication method for based on a parametric array. The method comprises the following steps of generating preformed Pattern code signals and a preformed synchronizing signal by adopting parametric pre-modulation, wherein one group of the preformed Pattern code signals are produced for modulation and call of a differential time delay difference; carrying out channel coding on information source information, quantizing and mapping the coding information to a time delay value, modulating the time delay value on the time delay difference between the preformed Pattern code signals, when the length of a communication signal reaches one frame, packaging the frame of signal and adding the preformed synchronizing signal; and emitting the signal through the parametric array after power amplification. Through the narrow directional property of difference frequency sound wave generated by parametric emission, the frequency for reflecting the sound wave in an interface can be reduced, and the inter-symbol interference caused by multi-path extension is inhibited. Through the narrow directional property of difference frequency wave of the parametric matrix, the risk of exposure of an emission node is reduced, and concealment and confidentiality of communication are improved.

The invention relates to a vehicle access management system, in particular to a radio frequency identification (RFID) technology-based vehicle access management system for managing the access of a vehicle, which comprises a computer (1) and a road-gate device (2), wherein the gate device (2) comprises a road-gate controller (3) and a road gate (4). The system also comprises an RFID reader (5) and an RFID electronic label (6) which is arranged on the vehicle, wherein the computer (1) is connected with the RFID reader (5), and the RFID (5) is also connected with the road-gate controller (3). The RFID technology-based vehicle access management system has the advantages that: (1) the identification speed is fast, the accuracy is high, the passing efficiency of the vehicle is high, the releasing speed is fast, the crowding of the vehicle at the gate can be avoided, the safety is good, the labor cost can be reduced, and the automatic management of the passing of the vehicles can be realized; (2) the system is convenient to use; (3) the reliability and the stability are good, and the maintenance cost is low; and (4) the confidentiality is high, and the anti-counterfeit performance is good.

The invention aims at providing an anti-fake label manufactured with an image hiding anti-fake technique. The anti-fake label has the advantages of attractive appearance and large anti-fake information content and comprises a label provided with an anti-fake image and a decoding grating matched with the anti-fake image. In the manufacture method, images to be hidden are specially processed by image processing software; images are positioned in accordance with screening parameters in a prepress screening mode and fused by chromatic aberration; a single image color lump or a four-color image is finally output, and directly published and printed on stocks so that image information to be hidden can be obtained. The image information to be hidden can be seen by sticking the matched grating on the stocks when in use. The anti-fake image manufactured with the method has the advantages of delicate image, strong anti-fake function, difficult reproduction, simple and convenient use, simple and clear identification of common consumers, simple manufacture process and low cost, and can be used for effective anti-fake and confidentiality in the field of package, certificates, and the like.

The invention relates to an optical network resource management method based on scanning codes. The optical network resource management method solves the problems that in the prior art, the information obtaining of network resources excessively relies on a specific network; and meanwhile, the permission of users is not limited, so the confidentiality of network resources can be reduced. The optical network resource management method based on scanning codes has the main technical scheme that optical network resources are managed through two-dimension code labels, a scanner with input, display and communication functions, a communication network and a resource management server; the scanner scans the two-dimension code labels; and the scanner is in communication connection with the resource management server through the communication network. The optical network resource management method based on scanning codes has the advantages that complete, clear, secure, convenient, fast and intelligent managements to optical network physical resources and logical resources are realized, front end and back end bridges are built, and the optical fiber network management updating is promoted.

The invention discloses a KS-CSS modulation method, and belongs to the technical field of the spread spectrum communication. In consideration of the problem that a transmission rate of the existing modulation mechanism is limited and the spectrum utilization rate is low, the two-dimensional data information is imported in the premise of unchanging the one-dimension data spread-spectrum mechanism and the transmitting power from the composite dimension angle, the spread-spectrum pseudo code is selected through a data mapping mechanism, and the two-dimension data information transmission is realized at the same time; the modulation order k is flexibly configured by using the transmission relation of the one-dimension and the two-dimension, thereby establishing the K-order composite spread-spectrum modulation mechanism. Through the method disclosed by the invention, the spread-spectrum pseudo code is dynamically updated through a two-dimension data mapping mechanism, the confidentiality ofthe one-dimension data is improved, and the two-dimension data information transmission is performed without importing additional power and occupying the extra frequency band condition. Through the method disclosed by the invention, the data transmission rate and the frequency band use ratio are improved, the aim of hiding the communication can be achieved, and the method can be applied to all spread-spectrum communication systems.

The invention discloses an agent type anonymous communication method based on a homomorphic encryption scheme. The agent type anonymous communication method comprises the steps that S1, a sending endcarries out original encryption on target data to obtain ciphertext data c1; S2, the sending end sends the ciphertext data c1 to a server; S3, the server performs homomorphic encryption on the ciphertext data c1 to obtain ciphertext data c2; S4, the server sends the ciphertext data c2 to a receiving end; and S5, the receiving end decrypts the ciphertext data c2 to obtain ciphertext data c1. The method is mainly used for reliably and completely transmitting private data (mainly for position data) of participating vehicles in the Internet of Vehicles, safe operation of the participating vehiclesin the Internet of Vehicles is achieved by improving the safety and confidentiality of the position data of the participating vehicles in the Internet of Vehicles, and certain economic benefits and engineering practicability are achieved.

The invention discloses terminal equipment with an encryption system. The terminal equipment comprises terminal equipment and an encryption card, wherein the terminal equipment is provided with a common system; the encryption system is arranged in the encryption card; the encryption card can be connected or disconnected with the terminal equipment in a pluggable mode; the terminal equipment further comprises a selection module used for the terminal equipment to select to start the encryption system or the common system, a check module used for checking whether the terminal equipment is connected to the encryption card or not, an encryption system server used for carrying out identity attribution identification on the encryption card, a data transmission module used for returning an identification result of the encryption system server to the terminal equipment, and a data processing module used for receiving a content of the data transmission module and starting the corresponding system according to the demand of the selection module. The terminal equipment provides the encryption system with better confidentiality, and the use safety and confidentiality can be realized.

There is disclosed an image processing apparatus adapted to selectively set a feature of securing the confidentiality of the real data indicated by allocation data by attaching an enabler to the apparatus when the video data left in a storage device are unnecessary. The image processing apparatus 100 stores in a memory 11 in advance an erasing program for erasing used video data in an HDD 19. After executing an image forming process, using the video data of the HDD 19 and if it is detected that an enabler 1 is inserted into the USB interface 20 to lift the restriction (prohibition?) of the use of the erasing program, a CPU 10 deletes the allocation data for the unnecessary data and starts the erasing program to overwrite/erase the corresponding real data to secure the confidentiality of the real data. If otherwise, however, the CPU 10 does not overwrite/erase the real data.

The invention is applicable to the technical field of computers, and provides a watermark adding method, device and equipment and a storage medium. The watermark adding method comprises the followingsteps: determining a check value of each digit according to a numerical value and a position value of each digit in a secret key; determining a three-digit character string set corresponding to each digit according to the numerical value, the position value and the check value of each digit; and replacing three-bit character strings of partial data in target data with three-bit character strings in the three-bit character string set to generate watermark-added data. According to the watermark adding method provided by the embodiment of the invention, the watermark information is used as a partof the data to be inserted into the data to be added with the watermark, the confidentiality is high, and the secret key can be quickly traced by utilizing the check value.

The invention relates to the technical field of mechanical locks, and discloses a mechanical coded lock. The mechanical coded lock comprises a face plate, a door lock opening mechanism, a coded lock structure and a bottom plate. The door lock opening mechanism comprises a handle, a transmission shaft, a resetting sheet, a supporting plate, a flat plate, a pushing block A and a pushing block B. The coded lock structure comprises a graduated disc, a pressing rod, an ejecting piece, a code disc, a lock disc and a spring bolt. The effect of unlocking a door with figures rather through a key is achieved based on the mechanical principle, and thus the mechanical coded lock is safe, simple and convenient to use. The coded lock can prevent a code from being tested, the number of code digit clamping pins can be correspondingly increased according to customer needs to increase the digit of the code, and thus the coded lock has very high confidentiality and safety.