2362results about How to "Reduce risk of leakage" patented technology

An inexpensive data storage technique utilizing available capacity in individual computer devices connected to a network is provided. When a backup client (BC) (14) of a user PC receives a backup instruction for a file from a user, the backup client (14) requests backup to a backup control server (20). The backup control server (20) divides and encrypts the file to be backed up into a plurality of encrypted pieces, transfers the encrypted pieces to user PCs (10), and stores the encrypted piece in the HDDs (12) of the user PCs (10). When the destributively backed up file is to be extracted, the user PC 10 obtains each encrypted piece from the user PCs 10 on which they are stored, and combines and decrypts the encrypted pieces to restore the original file.

Aneurysms are treated by placing a scaffold across an aneurysmal sac to provide a blood flow lumen therethrough. An aneurysmal space surrounding the scaffold is filled with one or more expandable structures which are simultaneously or sequentially expanded to fill the aneurysmal space and reduce the risk of endoluminal leaks and scaffold migration. The expandable structures are typically inflatable and delivered by delivery catheter, optionally with an inflation tube or structure attached to the expandable structure.

The invention discloses an electronic certificate management method and related equipment. The method comprises the steps as follows: the electronic equipment processes an electronic certificate in response to a received processing command; an encrypted processing record is broadcasted into a block chain network, thus allowing a node of the block chain network to store the encrypted processing record into a block chain of the block chain network. According to the scheme of the method provided by the invention, distributed management of the electronic certificate is achieved, storage reliability of the electronic certificate is improved, the risk of tampering or leaking certificate information is reduced, and information security and credibility of the electronic certificate are effectively ensured.

A unit (1) for packaging and dispensing a liquid or semi-liquid product includes a body (10) with an axis X, forming a reservoir (12) for the liquid or semi-liquid product, the reservoir (12) being surmounted by a pump (30) actuable by an actuating element (34). The product emerges through at least one opening arranged in an outlet element (9) connected to the pump (30) by a conduit (41) forming a flexible connection. The outlet element (9) is held substantially immovably in position on a fixed portion (51) of the body (10) surmounting the reservoir (12), the actuating element (34) being independently mounted relative to the fixed portion (51) of the body (10).

PCT No. PCT/FI97/00515 Sec. 371 Date Mar. 31, 1999 Sec. 102(e) Date Mar. 31, 1999 PCT Filed Sep. 3, 1997 PCT Pub. No. WO98/10233 PCT Pub. Date Mar. 12, 1998An apparatus for transferring heating and cooling power by means of two heat transfer media, wherein at least one of the heating media is arranged to be evaporated or condensed. To reduce the need for space, the apparatus includes a shell (3) inside which at least one plate heat exchanger (1,2) is arranged loosely, flow slots (19) of the heat exchanger being arranged to be completely or mainly open towards the shell (3) in such a manner that the evaporating or condensing heat transfer medium can flow to the plate heat exchanger or from the plate heat exchanger from different sides of the plate heat exchanger on the whole length of that slot (19) which is open.

Methods and devices are provided for reducing the concentration of low molecular weight compounds in a biological composition containing cells while substantially maintaining a desired biological activity of the biological composition. The device comprises highly porous adsorbent particles, and the adsorbent particles are immobilized by an inert matrix.

A flange for a medical collecting bag having an aperture allowing bodily fluids or exudates to enter the bag, wherein the flange has an inner rim delimiting the aperture therein, and wherein the flange has a central area encircling the aperture which area has a predetermined weakening line pattern wherein the force needed for removing the bag flange from the skin or a body side member is smaller than the force needed for breaking the weakening lines enables a simple gradual enlargement of the aperture of an ostomy device for adaptation of the aperture to the size of the stoma or for adaptation of the aperture to the size of a wound and a complete removal of the bag flange when substituting the bag.

The invention discloses a user network access scenario-based protection method and device and relates to the field of computer safety. The method comprises the following steps of extracting a device identification which corresponds to a local area network after a user terminal is accessed to the local area network; comparing the device identification with a preset device identification library to judge a scenario in which the current local area network is located; prompting a network environment in which the user terminal is located after the scenario in which the local area network is located is judged to be an unsafe scenario, and monitoring the safety level of the network accessed by the user terminal; and intercepting access when the safety level of the network accessed by the user terminal reaches a threshold value, and promoting whether the user terminal enters a safety access mode. The method and the device disclosed by the invention have the beneficial effects that the risk that the information of the user terminal leaks is lowered, and the safety of the information of the user terminal is enhanced.

The present invention discloses a quasi-fully homomorphic ciphertext data operation method and system and belongs to the ciphertext database and network data privacy protection technical field. The fully homomorphic cipher operation-based hybrid cloud platform architecture is provided, existing database configurations are not needed to be drastically modified, and therefore, a construction mode issimple; a ciphertext server is defined to support homomorphic calculation, query interception rewriting, data encryption and decryption, key management and other functions, is deployed at the privatecloud platform of a local data center and can establish a connection between the local data center and a third-party public cloud platform; a classified field extension mode is adopted, field extension is performed on numerical value data and character type data; by means of mode innovation, quasi-fully homomorphic ciphertext conventional arithmetic calculation is performed on the numerical valuedata through a functional demand-based cipher service strategy; query/operation is directly performed on ciphertext data; and therefore, the processing efficiency of the data and the security of thestorage and retrieval of the data can be improved.

The invention discloses a medical data platform based on the block chain technology. The medical data platform comprises a terminal, a server module, a data storage module and a block chain network. The terminal exchanges data with the data storage module and the block chain network through the server module. The server module comprises a communication server, an intermediate certificate server and a root certificate server and is used for processing data interaction between the modules and allocating certificates to the block chain network nodes. The data storage module comprises a medical information system and a distributed image database and is used for data storage. The block chain network comprises multiple institutional accounting nodes and multiple consensus nodes. The accounting nodes perform mutual data synchronization. The medical data platform based on the block chain technology has the advantages that the existing medical information is stored in the block chain shared account book so that all the medical institutions can share the medical information related to the patients, and the privacy protection function of the medical data can be realized by using the encryption algorithm and thus sharing of the medical data can be facilitated and the security of the sensitive information can also be protected.

The invention discloses an attribute-based searchable encrypted electronic medical record system and an encryption method. The system comprises a key distribution center and a cloud storage center, wherein the key distribution center generates public parameters and a master key to initialize the system; the key distribution center generates and distributes keys containing user attributes to users;a data owner sets an access strategy before uploading medical record data, encrypts the data, and then uploads the data to the cloud storage center; a data visitor generates a trap door according tokeywords and the keys, and provides a query request to the cloud storage center; and after receiving the query request, the cloud storage center determines to return corresponding encrypted data to the data visitor according to the trap door and keyword ciphertexts. According to the scheme of the invention, the difficulty of key management in a multi-user environment can be reduced, data users canbe supported to accurately query the keywords of the ciphertexts, guessing attacks of the keywords can be resisted, and the leakage of privacy data can be effectively prevented.

The invention relates to the technical field of electric cars, in particular to an integrated water-cooled power battery box. The integrated water-cooled power battery box provided by the invention comprises a box cover, a box body and a temperature regulating power system, wherein the box body is made of an aluminum alloy material and is manufactured by an extrusion moulding technology; a circulating flow passage is formed in the wall of the box body; a circulating loop for a temperature regulating medium to flow circularly is arranged inside the wall of the box body; and the temperature regulating power system can drive the temperature regulating medium to circularly flow in the circulating loop. In such a way, a water cooling board and a battery box are designed in an integrated manner,a hollow aluminum alloy section is adopted to achieve lightweight design, mechanical properties such as strength and rigidity are met, the integrated water-cooled power battery box is simpler in structure, better in technical performance and smaller in occupied space, and the comprehensive cost can be reduced; the heat-dissipating, cooling and temperature-raising and heating functions can be achieved by using one set of temperature regulating power system, the integrated water-cooled power battery box is simpler in structure, more convenient and fast to use and smaller in occupied space, themanufacturing cost and the using cost can be reduced, and the heat-dissipating efficiency and the heating efficiency can be improved.

The invention discloses a key generation method, an encrypted data analyzing method, devices and a key managing center. According to the methods, the devices and the center of the invention, the key managing center receives a key obtaining request sent by a terminal; a key is generated according to the key obtaining request; the key is sent to the terminal; therefore, the terminal carries out secure communication with household appliances through the key; the household appliances are connected to a network; the key leakage risk is greatly reduced; and the problem in the prior art that the networking security of the configured household appliances is low is effectively solved.