296results about How to "Prevent malicious tampering" patented technology

The invention belongs to the technical field of network televisions, and provides a television payment method and system based on two-dimensional codes. The television payment method comprises the steps that a television terminals sends an ordering request containing ordering information; a payment server generates corresponding two-dimensional codes in real time according to the ordering information and returns the two-dimensional codes to the television terminal to be displayed; a mobile terminal scans to obtain the two-dimensional codes displayed on the television terminal and analyzes the ordering information according to the two-dimensional codes; the mobile terminal sends a payment request containing the ordering information to the payment server; the payment server completes payment of the ordering information. Therefore, through the combination of the two-dimensional codes and the mobile terminal, the television payment method and system realize television payment, enable television payment to be more convenient and quicker, and user experience is improved accordingly.

The invention belongs to the field of information security techniques and provides a printing security monitoring and auditing system based on a virtual printing technique aiming at solving the problems that the printing behavior and the printing content are hard to monitor, unauthorized printing and skip-level printing cannot be prevented and the like in the existing printing management method. The printing security monitoring and auditing system comprises a server, at least one ordinary client, at least one approval client, a printing controller and a printing machine, wherein the clients are divided into the ordinary clients and the approval clients; and all ordinary clients and all approval clients are connected with the server, the printing controller is connected with the server and the printing machine is connected with the printing controller. By adopting the windows virtual printing technique, the optical character recognition (OCR) technique, the equipment intelligent control technique and the like, the printing security monitoring and auditing system realizes the monitoring and management of documents at a full life cycle which comprises printing application, approval, output, recovery, destruction and the like, and can form complete printing logs for review.

The invention relates to a network examination system based on a block chain and a method for managing the network examination by using the network examination system, belonging to the technical fieldof teaching management equipment. The system adopts double-block chain design, including a data storage layer, a block chain core layer, a block chain application layer, a block link interface layer,a business system layer and a system user layer. The API interface of the data storage layer is connected with the API interface of the core layer of the block chain, the core layer of the block chain is connected with the application layer of the block chain, and the application layer of the block chain is connected with the interface layer of the block link through the API interface. The blocklink interface layer is connected with the service system layer to realize the inquiry and writing of the block chain service. The business system layer is connected with the system user layer, whichprovides the interface between the user and the network examination service. The invention can prevent information from being lost or tampered with maliciously, construct a safe, reliable and non-tamper examination credit system, simplify the network examination management process, improve the network examination organization efficiency, and provide high-efficiency, convenient and humanized examination service for examinees.

The invention discloses a transaction storage method, a storage network and electronic equipment, and the method comprises the steps that a transaction node sends transaction data of a transaction toan information service processing node after the transaction initiated by the transaction node is completed; the information service processing node extracts characteristic data of the transaction byutilizing the transaction data; the transaction node calculates the characteristic data by using an irreversible encryption algorithm to obtain a first information abstract of the transaction, packages the first information abstract of the transaction into a storage request and sends the storage request; and the blockchain accounting node receives the storage request and stores the first information abstract in the blockchain. Through the scheme, the transaction can be prevented from being maliciously tampered, and the reliability of the transaction is ensured.

The invention discloses an information processing method which is used for solving the technical problem that the network security of an electronic device is poor in the prior art. The information processing method is applied to an electronic device and comprises the steps that first information is obtained, wherein the first information contains the information of a domain name to be analyzed; the electronic device is controlled to send a domain name analysis request corresponding to the first information to a domain name system (DNS) server, and a first internet protocol IP address, corresponding to the first information, fed back by the DNS server is obtained; the first IP address is matched with an obtained second IP address, so that a matching result is obtained, wherein the second IP address is a preset IP address which corresponds to the first information; whether the DNS server is hijacked is determined according to the matching result. The embodiment of the invention further discloses the electronic device corresponding to the information processing method.

The invention discloses a block chain embedding method for a wavelet domain watermark in an image. The method comprises the following steps of 1, generating a watermark containing data blocks of a block chain; 2, embedding the generated watermark containing the data blocks of the block chain into the wavelet domain watermark; 3, extracting and verifying the wavelet domain watermark; and 4, updating watermark information in the block chain. According to the block chain embedding method for the wavelet domain watermark in the image, a watermark sequence is generated by utilizing the data blocksof the block chain; a block chain technology is introduced in a digital watermark, so that the security of image information is ensured and the watermark information is prevented from being tampered by any attack means; and by updating the data blocks of the block chain in the watermark, the watermark is not modified at will in a network transmission process, attack in an invalid network is avoided, and the information security in the transmission process is ensured.

The invention provides a disk array and its access authority control method and devices, server and server system, in which, the method includes: the request for the access of logic volume sent by the disk array receiving server, this access request must have the server identifier, logic volume identifier and access attribute; the disk array query indicates the access authority list of logic volumes access authority for the disk array of servers; according to the access authority list, when the access authority corresponding to the server identifier and the logic volume identifier can't support the access attribute, the disk array refuses the server to access the logic volume in the mode recorded in the access attribute. The invention may effectively protect the disk array against the virus intrusion, avoid the malicious juggle of data saved on the disk array by Hacker, thus improve the safety of data on the disk array.

The present application discloses a method for verifying contract data and a network and electronic equipment thereof. The method comprises the following steps: the verification node obtains a first digital fingerprint of the target contract data stored in the block chain; Acquiring the target contract data stored by the contract storage node, and calculating a second digital fingerprint using thetarget contract data; Judging whether the first digital fingerprint and the second digital fingerprint are consistent, and if so, determining that the target contract data in the contract storage node has not been tampered with. The scheme can avoid the contract being tampered with maliciously and guarantee the reliability of the contract data.

The embodiment of the invention provides a secure publishing and subscribing system and method based on a block chain technology. The system comprises a key server, a message subscribing client, a message publishing server and a block chain comprising a plurality of block chain nodes, the method comprises the following steps: receiving a ciphertext and an encryption tag sent by a message publishing server; receiving an attribute value, a trap door value and a pre-decryption key sent by the subscription client; verifying whether the ciphertext is matched with the attribute value or not; if yes,verifying whether the encryption tag is matched with the trap door value or not; if so, pre-decrypting the ciphertext by using the pre-decryption key to obtain a pre-decrypted ciphertext; and sendingthe pre-decrypted ciphertext to the message subscription client, so that the message subscription client decrypts to obtain a subscription message. According to the embodiment of the invention, the security of the stored data in the publishing and subscribing system can be improved.

The invention discloses a method and a system for updating position of a base station. The method comprises the following steps: receiving a base station data reported by a mobile terminal; detecting if the reference position information is in a first threshold scope; if yes, updating the current position information; and if not, storing the reference position information into a to-be-determined cache region. The system comprises a receiving module, a detecting module, a first calculating module and a data updating module, wherein the receiving module is used for receiving the base station data reported by the mobile terminal; the detecting module is used for detecting if the reference position information is in the first threshold scope and supplying the reference position information to the first calculating module or the to-be-determined cache region according to a detection result; the first calculating module is used for calculating by the using of a first predetermining algorithm according to the reference position information and the stored current position information of the base station and supplying a calculation result to the data updating module; and the data updating module is used for updating the current position information according to the acquired calculation result. By the using of the method and system for updating position of base station provided by the invention, the operation of malevolently distorting the position of the base station in the data can be avoided.

The invention discloses an image coding method for preventing and identifying image tampering. The data of original image coding is encrypted by a key and circulating redundancy check coding (CRC) is carried out on the encrypted data; then scrambling encryption is carried out the encrypted data of the original image coding and the circulating redundancy check coding by keys; and then the encrypted data of the original image coding and the circulating redundancy check coding are added to display image coding (non-encrypted image coding), thereby preserving the information of the safe and true original image into the image so as to prevent and identify image tampering, in this way, the coding of one image consists of two parts: the display image coding and the encrypted original image coding; the display image coding can be any form of image compression coding and allows any form of operation on the display image; the original image can be intuitively observed by carrying out decryption on the encrypted original image coding; comparison is carried out on the original image and the display image, thus being capable of intuitively observing the alternation carried out on the original image. The image coding method has the advantage of identifying the image tampering in direct contrast with the original image, thus being convenient for people to judge whether the correction on the image affects the authenticity of the content of the image or not and being capable of accurately resuming the image after tampering to the original image. The image coding method is simple in arithmetic, is easy to realize hardware coding and software coding, can be used for validating the authenticity of court evidence and e-business pictures as well as resuming the tampered image and image steganalysis.

The embodiment of the invention provides a method and a device for reinforcing an application program. The method comprises the following steps of receiving a reinforcing request of the application program, wherein the reinforcing request comprises an installation package of the application program and multi-channel information for reinforcing the application program, the installation package comprises code files and resource files, and release channel names and corresponding channel values are configured in the resource files; analyzing to obtain corresponding code files and resource files from the installation package of the application program; executing reinforcing operation on the code files obtained through analysis; executing retouching operation on the resource files obtained through analysis according to each piece of channel information to obtain a new resource file corresponding to each piece of channel information; executing packaging operation on the reinforced code files and the new resource file corresponding to each piece of channel information to obtain a reinforced installation package corresponding to each piece of channel information. According to the method and the device, the safety of the application program can be improved and the efficiency of reinforcing multiple release channels is improved.

The invention discloses an Internet of ships intelligent shore-based interaction device based on Beidou, and the device comprises an embedded-type main control board, an extended control board, a communication/positioning module, an AIS module, a ZigBee module, a sensor module, an RFID module, an internal control module, an encryption module, a power module, an external control module, a fingerprint recognition module, a DVR module, a multimedia module, a storage unit, an intelligent terminal system, a liquid crystal touch screen, and an interface module. The embedded-type main control board is connected with the extended control board. The power module is connected with the main control board and the extended control board. The communication/positioning module achieves interaction with shore-based equipment through a Beidou message or a 3G/GPRS signal. The device employs the technology of multimode positioning, the technology of sensing, the technology of wireless networking communication and the technology of safety encryption, achieves a function of inland river gate report, a function of visualized emergency command scheduling and a function of shipping electronic business, and prompts the building and development of inland river Internet of ships.

The invention discloses a method and a device for signing a user program verifying signature of the user program. The method for signing the user program includes steps of acquiring ID (identity) of a CPU (central processing unit), computing the user program by SHA-256 hash operation to obtain a program digest, compiling a public key and a module generated through RSA (Ron Rivest,Adi Shamirh and Len Adleman) encryption algorithm into the user program; combining the ID of the CPU, the program digest and the length of the user program in sequence to form a data string; operating the data string by a private key corresponding to the public key and the module to obtain ciphertext; and loading the ciphertext into a check area of the CPU. By combining with the RSA algorithm and the SHA algorithm to process the user program and integrating with the ID of the CPU to be a part of the signature, the user program must be restarted by being strictly subjected to the signature verifying process matched with the signature, risk in brute force attack to the user program is greatly reduced, and the user program can be effectively protected from being tampered or stolen maliciously.

The invention discloses a method for guaranteeing the security of the source of a web application in a mobile terminal. The method includes the following steps that: as for a web application stored on an application server, encryption processing is performed on a configuration file, the MD5 abstract value of a source code file is solve and is stored, and the web application and the MD5 abstract value are downloaded through the mobile terminal; the configuration file is decrypted, if the configuration file is successfully decrypted, the web application is installed; after the web application is installed, every time a user starts the web application, MD5 abstract value solving is performed on the source code file, an obtained MD5 abstract value is compared with the downloaded MD5 abstract value, if the obtained MD5 abstract value is consistent with the downloaded MD5 abstract value, the application is started, otherwise, the application is not started. According to the method of the invention, the configuration file of the web application is encrypted, so that malicious behavior of network phishing can be prevented; when the application is started, the obtained MD5 abstract value is compared with the downloaded MD5 abstract value, so that the source code file of the web application can be prevented from being maliciously tampered; and therefore, the security of the source of the web application in the mobile terminal can be guaranteed.

The invention discloses a method, a system and a device for preventing a webpage from being tampered with. The method, the system and the device can authenticate webpage data effectively and improve the safety of the webpage data. The method comprises the steps of receiving a webpage data updating request from a terminal user, when the webpage data updating request is to request to update static data, signing the updated static data with a key, and transmitting to a file server in a network system, and/or when the webpage data updating request is to request to update dynamic data, signing values of fields in an SQL (Structured Query Language) for updating the dynamic data with the key and transmitting to a database server in the network system, and executing the SQL to update the dynamic data when the database server determines that signatures of the values of the fields in the SQL are valid.

The present application discloses a storage method for a power purchase and sale contract, a network and an electronic device thereof. The method comprises the following steps: a contract management node sends a first storage request after a purchase and sale power contract is signed, wherein the first storage request is used for requesting to store a digital fingerprint of the purchase and sale power contract data, and the digital fingerprint of the purchase and sale power contract data is generated based on the content of the purchase and sale power contract data; the block chain accountingnode receives the first storage request and stores a digital fingerprint of the purchase and sale contract data in the block chain. The scheme can avoid malicious tampering with the power purchase andsale contract and guarantee the reliability of the power purchase and sale contract.