198results about How to "High security requirements" patented technology

Systems and methods for pseudonymous public keys based authentication are described that enable an authentication to achieve pseudonymity and non-repudiation, for example, at the same time. Pseudonymity may provide, for example, that a user can show to different parties different digital identifiers for authentication instead of, for example, always using a single digital identifier everywhere, which may lead to a breach of privacy. Non-repudiation may provide, for example, that the authentication data at the server side can be used, for example, to verify a user's authentication request, but not to generate an authentication request, which might lead to user impersonation. A user may use a physical token to generate the authentication request corresponding to the user's identity to pass the authentication.

The invention relates to a processing method and the system of anti-harassment of mobile phone calls and messages and private communication, which is as follow: when grouping the contacts in the mobile phone address list according to different classes, a private group of private communicating contacts is added, and different scene modes of the user are set; when receiving a mobile phone call or a message (text message, multimedia message), depending on the grouping sort of the contact of the incoming call or the message or the multimedia message, and the current scene of the user, together with the behavior characteristics of the harassing call and the spam message with the database information of the public harassing message issued by the authoritative institution or obtained from social statistics, the corresponding process to the call, the message and the multimedia message of the mobile phone is executed to reduce harassment; meanwhile the communication records of incoming, dialed calls and message, multimedia message with the contacts in the private grouping are encrypted and preserved to protect the personal privacy of the user. The invention has the advantages of adopting the operating steps of uniform process, and resolving synthetically the harassment of calls, messages and multimedia messages for the mobile phone and the private protection.

The invention is applicable to the field of computer software and provides a multi-tenant-oriented data acquisition method, device and system. The method comprises the following steps: receiving a tenant data access request which carries tenant identifiers; obtaining data sources corresponding to the tenant identifiers according to the tenant identifiers and data source configuration files stored in advance; and obtaining the requested tenant data via data source access databases corresponding to the tenant identifiers. The method, the device and the system provided by the invention have the advantages that: one or more data source configuration files can be actually configured according to different application scenarios; therefore the method can be used in different application scenarios and is more widely applied; and a data source configuration file is configured independently for the tenants requiring high isolation performance and security and is used for managing the data sources related to the tenants, thus the requirement of some tenants for high isolation performance and security is met further.

The invention relates to an electronic contract off-line signing method based on a trusted third party. According to the electronic contract off-line signing method based on the trusted third party, an electronic signature digital certificate, a user private key and a contract proof public key are obtained from the trusted third party by a user; then, the Hash digest value of the electronic contract is calculated; the Hash digest value is subjected to encryption operation by the user private key and the proof public key; an encryption result is two strings of key sequences; finally, the key sequences and the digital certificate watermark of a signer are embedded into a signature picture; then signature picture embedded with the watermark is stamped to an electronic contract document. According to the electronic contract off-line signing method based on the trusted third party, which is disclosed by the invention, the requirement on the contract signing platform safety in the contract signing process can be favorably lowered, and the contract signing platform can finish the electronic contract signing process only by taking the responsibilities of approving and putting to the proof to the electronic signature without damaging the safety.

An anticollision protecting fence material for highway is prepared from ultrahigh molecular weight polyethene (UHMWPE) through pre-swelling, dissolving and pugging in dual-screw extruder, extruding out for shaping, and stretching for strengthening. It has high longitudinal tension strength (100-180 MPa) and large longitudinal elongation rate at break (50-350%).

The invention provides an online virtual currency third-party credit method and a data processing system thereof. The online virtual currency third-party credit method includes steps of determining user credit line, user loan application, third-party credit supplier assessment and lending, user recharging or trading by loan, user repayment and payment requesting, settlement of a third-party credit supplier and a platform supplier and the like. The data processing system comprises a client and a server, the client realizes users' various service requests and the server processes the users' service requests. By the aid of the online virtual currency third-party credit method and the data processing system, value of personal online digital assets is explored, trade is promoted by means of load leverage and simple consumption payment ways, trade scale is enlarged, and the platform supplier is assisted in exploring and keeping high-quality users, and user experience is improved.

The invention provides a method for synchronizing data between different databases under a physical isolating condition in order to ensure the stability of inputting data to a target database. Through building a temporary middle database inside an intranet, a synchronous buffering is realized between different network environmental databases, at the same time, the requirements of synchronization and the completeness of the data can be satisfied, and the flexibility of the operation is improved through designing a metadata table. The method has a high demand on safety and needs the intranet and an outer net to be isolated physically; the data with large data quantity can work stably in the different databases during synchronizing through the method.

The invention discloses a sea-gas coupled real-time observation buoy system based on Beidou satellite and Iridium satellite double-satellite communication. The sea-gas coupled real-time observation buoy system comprises a sea-gas coupled observation sensor unit, a data collecting communication control unit, an anchoring unit, a buoy body platform, a power supplying unit and a data processing center. The buoy data collecting communication control unit adopts a Beidou satellite system to transmit conventional block method sea-gas flux, upper-layer sea current profile and buoy operation state parameters which have high requirements on data safety and low requirements on the communication quantity, and adopts an Iridium satellite system to transmit high frequency eddy related and high-resolution seawater skin surface temperature profile data which have high requirements on the communication quantity. A buoy can synchronously observe turbulence flux parameters of an eddy-related method of amovable platform, flux parameter of a block method, the seawater 0-1.0 m high-resolution skin surface temperature profile and the 0-70 m upper-layer sea current profile in real time in real time. Thesea-gas coupled real-time observation buoy system is suitable for being released in deep and open sea, and has the characteristics of diverse sea-gas interface observation parameter, safe data transmission and the like.

The invention provides a method for scheduling an input output (IO) request queue of a disk. The method comprises the following steps of: A, when a file system generates IO requests, judging whether the IO requests are high-real-time-performance IO requests, if so, executing the step B, otherwise, executing the step C; B, allocating high-priority instructions to the IO requests, and then executing the step C; C, sending the IO requests to a disk driver; D, after the disk driver receives the IO requests, judging whether the IO requests include the high-priority instructions, if so, executing the step E, otherwise, executing the step F; E, sending the IO requests to the forefront position of the IO request queue, and returning to the step A; and F, sorting the IO requests according to the position of a sector, sending the IO requests into the IO request queue, and returning to the step A.

The invention provides an information security processing method and security processing apparatus applied to electronic equipment; a security application can be implemented on the electronic equipment; the information safe processing method comprises the steps of enabling the security application to be associated with a first sub application and a second sub application; adopting a first security mechanism for the first sub application while adopting a second security mechanism for the second sub application; after the electronic equipment receives an application running instruction, determining whether the second sub application is indicated by the application running instruction to be implemented or not; if the second sub application is indicated by the application running instruction to be implemented, adopting the second security mechanism to enable the second sub application to be implemented, wherein the first sub application is different from the second sub application; and the security level of the second security mechanism is higher than that of the first security mechanism. By adoption of the mobile terminal security payment scheme provided by the invention, the security of applications having high demand on security is ensured, and the convenience in use of applications having low demand on security is improved as well.

The present invention relates to a pixel and DNA cross dynamic chaotic cipher-based image encryption method and device. The method comprises the following processing of ranking the pixels of a plaintext image to obtain a first index matrix, and carrying out the first chaotic coding on the plaintext image according to the first index matrix to obtain a first intermediate image; ranking the rows andthe columns of the first intermediate image separately to obtain a row index matrix and a column index matrix, and scrambling the first intermediate image according to the row and column index matrixes to obtain a second intermediate image; converting each pixel in the second intermediate image into a 4-base DNA sequence, selecting eight kinds of coding rules satisfying a Watson-Crick complementrule according to the second chaotic coding, adopting the above eight kinds of coding rules to carry out the complementary DNA coding on each DNA sequence in the second intermediate image to obtain athird intermediate image, and then carrying out the DNA subtraction, add operation and xor operation on the third intermediate image to obtain a fourth intermediate image; carrying out the adjacent DNA coding on the fourth intermediate image to obtain a final ciphertext image.

The invention provides an image interpolation space completely reversible separable ciphertext domain information hiding algorithm. The method comprises the following steps of: giving out a conditionrequired by a traversal matrix suitable for image encryption, constructing the traversal matrix by utilizing a chaotic pseudo-random number generator, carrying out a decryption algorithm of the traversal matrix and diffusion and restoration of pixels, generating an encrypted image and realizing secret information hiding in an encrypted image interpolation space; according to the invention, the matrix is traversed;, pixel diffusion and interpolation hiding can realize confidentiality of a carrier image and a secret image. The distribution of a ciphertext image histogram and a secret carrying image histogram is uniform. The image is flat, and a decoder cannot obtain the original image and the secret key information from the histogram; Attacks such as statistical characteristics of the plaintext image are well defended. The security requirement of the carrier image is met, meanwhile. The original image can be restored in a lossless mode, secret information can be extracted, watermark extraction and image decryption are independent, completely separated and exchangeable, and the method has the advantage of being high in security.

The invention relates to a visible-code-based payment method and system with multiple security combination mechanisms, wherein the visible code is a two-dimension code or a bar code or a character code or combination of the two-dimension code, the bar code and the character code. The visible-code-based payment method and system with the multiple security combination mechanisms is characterized in that on the basis of an existing transaction payment system (such as an Internet channel, a mobile intelligent client terminal, an ATM, a POS and a counter), payment card information used for authentication during transaction payment is generated in a self-service mode in a card issuing bank/card issuing mechanism system by a cardholder, the payment card information at least comprises a payment card number, personalized welcomes, an acquiring bank identification code, a commercial tenant name, a commercial tenant code, a card acceptor terminal identification code, an actual validity period, a one-time/multi-time card, a service code/service constraint, a CVN, a personal identification code, a dynamic verification code receiving number, the allowed retyping frequency, a transaction money code, limit amount, cardholder identity authentication information (such as the cardholder identification numbers, fingerprints, a digital certificate and a seal impression) and the like, the payment card information is used as the basis of the multiple security combination authorization mechanisms, and the payment card numbers can be applied to the transaction payment method and system through the visible code (such as the two-dimension code, the bar code, the character code and the combination of the two-dimension code, the bar code and the character code).

The invention relates to bridge construction technology, in particular to a horizontal swivel structure and a construction method of a super-large tonnage asymmetric composite girder cable-stayed bridge. It includes concrete foundation piles, caps, turntables and swivel slide rails. The caps are divided into upper caps and lower caps. The swivel slides are divided into legs and slideways. For supporting feet, the lower bearing platform is provided with a lower turntable, a positioning pin shaft and a slideway, the upper turntable is connected with the lower turntable through a positioning pin shaft, the upper turntable is bonded to the lower turntable, and the braces are fitted to the slideway. The present invention has significant effects on solving the problems of complex horizontal swivel construction process and high construction cost of large-tonnage, asymmetric mixed-girder cable-stayed bridges, and also has many advantages such as simple construction procedures, fast construction speed, safety and reliability, and low engineering cost. advantage.

The invention discloses an electrolyte capable of improving the security property of a lithium ion battery. The electrolyte is prepared by mixing of electrolyte salt, organic solvents and additives, wherein the electrolyte salt is solid solvent LiBOB; the organic solvents are ethylene carbonate EC, propylene carbonate PC and ethyl methyl carbonate EMC; the additives are vinylene carbonate VC, vinyl ethylene carbonate VEC, trimethylene sulfite PS and tributyl phosphate TBP. By using the novel electrolyte salt and the functional additives, the thermal stability of the lithium ion battery is improved, on premise of ensuring the battery circulation property, the security property of the battery is effectively improved, and the problems that the battery is combusted and exploded under an overheating condition are avoided. By applying the electrolyte, the reliability and the security of the lithium ion battery are improved, the quality of the lithium ion battery is greatly improved, and the market application prospect of products of battery production factories is improved, so that the successful development of the novel electrolyte has great production practice significance.

The invention relates to an asymmetric FHE method and secret key substitution and cipher text delivery methods thereof. A private key and a public key are generated randomly, and the secret key is used to generate an operation support function, a unit cipher text of secret key encryption and a public key encryption operation support function; a plaintext is encrypted to generate a cipher text, namely, the secret key is used for encryption directly to obtain a direct cipher text, or the public key corresponding to the secret key is used to carry out encryption operation to obtain a compatible cipher text in the same secret key space; and when the cipher text needs to be delivered to the receiving end safely, the sending, receiving and server ends or the sending and receiving ends complete delivery of the cipher text. Operation of the cipher text is carried out directly without leakage of the plaintext, a safe data storage and operation environment is provided, the computing speed is improved substantially compared with the prior art, the required cipher text volume and expansion speed are lower, the methods can be realized in different manners, and a data owner can use different cloud computing services needless of worrying about leakage of sensitive and secrete data.

The invention discloses a safe communication authentication and encrypted communication method comprising three parts: the method for realizing the establishment of a digital signature by a signature institution or a digital publisher, the method for authenticating the signature in application and the method for establishing the encrypted communication in the application. The safe communication authentication and encrypted communication method can conveniently utilize Internet, a public telephone network, and the like for realizing the point-to-point bidirectional digital signature authentication, the encrypted communication function and other functions, thereby ensuring the credibility and the authenticity of both communication parties and realizing the safety and the confidentiality.