30results about "Program/content distribution protection" patented technology

A play list of audio recordings made in the past is searched for, and is displayed in the event that it exists. The contents that have already been recorded in the past are displayed with the word “recorded” affixed thereto in a manner corresponding with the track Nos. of the CD, and are further displayed with a number such as “2” affixed thereto in the event that the contents have been recorded twice in the past, for example. Further, in the event that play lists exist, a dialog box prompting selection of a play list is displayed, so the user can select between audio recording by adding the new contents to an already-existing play list or audio recording by creating a new play list. Thus, the contents recorded in the past are automatically searched, and the user is presented with a display thereof.

The present teachings provide for the download and purchase of a digital movie. Several schemes are described for handling a large file that is a digital movie including separately handling its audio and video component. Because the video component is downloaded separately from an audio component, it can be downloaded over several sessions. A user can separately initiate the download of the corresponding audio component. Because the audio component is significantly smaller, its download can be achieved in a much shorter time, often in one session. Thus, content is provided to a user in a substantially transparent manner such that a user's perception of receiving the functionality of a digital movie essentially becomes the time required to initiate payment and download of a relatively small audio component.

In a recording system having an accounting function, in recording a copy target information signal onto a recording medium, an identification signal for identifying the contents of the information signal is saved in a recording machine, and at the time of copy, the saved identification signal and the identification signal of an information signal to be newly recorded are compared with each other to discriminate whether or not copy and recording of the same information signal was carried out by the recording machine in the past, thereby discriminating whether or not recording should be permitted on condition that accounting is carried out, on the basis of the result of comparison. If the information signal was copied in the past, copy and recording is permitted on condition that accounting is carried out, thereby preventing unlimited first-generation copy.

A collection/distribution server divides processing task accepted from a customer terminal into a plurality of processing units, and transmits the units to at least one or more user terminals. The collection/distribution server receives processing results of execution on the user terminals, and integrates the processing results to send back to the customer terminal.

The user terminal registers with an application server in advance for receiving a task commission from the collection/distribution server, and receives a license application from the application server. When the license application receives a processing unit from the collection/distribution server, the license application executes the processing on the user terminal. The license application sends back a result of the processing to the collection/distribution server via a network. The user terminal receives a specified service as good value for executing the processing task substituting for a contractor.

The invention provides a file tamper detecting and repairing method and system. The method includes the steps of firstly, conducting scanning to obtain HASH values and file routes of all credible files in the system, and storing the HASH values and the file routes; secondly, monitoring all the files in the system, comparing all the files in the system with an HASH base, judging whether abnormal files or newly-added files exist or not, conducting matching according to a normal state rule base and a normal state model, if matching is successful according to the normal state model, adding rules of the matching result to the normal state rule base, and if matching fails, reminding a user to conduct processing. Through the method, the tampered files or the newly-added files in the system can be effectively identified; through the combination of the normal state rule base and the normal state model, files or catalogues which are changed in real time can be added to the normal state rule base in time, and self-learning of normal state rules is achieved, and user operation is reduced.

The present invention relates to a content protection apparatus and method using binding of additional information to an encryption key. The content protection apparatus includes an encryption unit for creating an encryption key required to encrypt data requested by a user terminal and then generating encrypted data in which the data is encrypted. An additional information management unit manages additional information including authority information about the encrypted data. A White-Box Cryptography (WBC) processing unit generates a WBC table required to bind the encryption key corresponding to the encrypted data to the additional information. A bound data generation unit generates bound data in which the encrypted key is bound to the additional information, using a cipher included in the WBC table.

The embodiment of the invention discloses a program protection method and device. The method comprises the following steps of encryption at a program generation stage: acquiring a first secrete key; acquiring a second secrete key and a mark of a designated category; encrypting the designated category by utilizing the second secrete key; encrypting the attribute information of the second secrete key by utilizing a public key of the first secrete key; decryption at a program running stage: decrypting encrypted data of the attribute information of the second secrete key by utilizing a private key of the first secrete key; judging whether the to-be-loaded category belongs to the designated category or not according to the mark of the designated category, and decrypting the to-be-loaded category by utilizing the second secrete key if the to-be-loaded category belongs to the designated category. The first secrete key and the second secrete key are used for doubly encrypting the program, so that the source code of the program can be effectively protected; meanwhile, the program is also distinguished, and only the designated category is encrypted, so that the encryption and decryption efficiency can be improved; moreover, the mark of the encrypted category is further encrypted and protected by the second secrete key, so that the safety of the program is further protected.

The invention provides an application program copyright protection method, which is applied in the field of application program store copyright protection of a mobile internet. The method comprises the following steps of: integrating a public copyright module in an application program; and authenticating a user through the public copyright module, and allowing the user to use the application program if the authentication is successful. The invention also provides a method for integrating the public copyright module through the application program and a digital copyright protection system. By the method and the system, an application program copyright authentication process is simplified; and the method and the system are safe to use and high in reliability.

A method for a network infrastructure copy protection system. The method includes the step of applying a digital signature to a digital content file prior to transmission. Digital content files that are to be legitimately transmitted across the distributed computer network are modified by the application of digital signatures corresponding to the sender. As content files are transmitted across a distributed computer network, the distributed computer network examines the content files to determine whether they include the digital signatures. The examining is performed by hardware comprising the infrastructure of the distributed computer network. When content files include respective digital signatures, the content files are transmitted by the infrastructure. When the content files do not include the digital signatures, transmission of those content files not having digital signatures is blocked. The digital signatures are configured to identify the senders of the digital content files. The digital signatures can be logged within the distributed computer network to maintain a record of the digital content files as they are transmitted. The hardware performing the examining can be a plurality of routers or a plurality of cache engines within the distributed computer network.

The present invention is a content data playback device having a security chip, wherein the security chip has: storage means for storing firmware data containing a firmware program; and firmware update management means which, according to input of an acquisition request for a content key or a decoding request for content data for the security chip, assesses the necessity for executing update processing for firmware data on the basis of a comparison between deadline information which has been set for the firmware data and time information which has been received through a network, and if execution of the update processing is necessary, rejects the request. Therein, the firmware program causes the security chip to function as content key acquisition control means for acquiring the content key for decoding the content data through the network, and decoding means for decoding the content data using the content key.

Described is a system for protecting sensitive information that is hardcoded in polynomial-size ordered binary decision diagram (POBDD) form. A software executable represented as a POBDD having sensitive information embedded therein is obfuscated into an obfuscated POBDD. An input query on the obfuscated POBDD is evaluated, and the sensitive information is revealed only if the input query is a correct input. Thus, an adversary is prevented from extracting the sensitive information embedded in the POBDD.

The invention relates to a software watermarking method based on collatz conjecture. The method comprises a software watermark embedding and extracting process. In the embedding process, a part of conditional branch structures are selected as embedding points by analyzing an execution path of a host program; and applying control flow confusion based on collatz conjecture at each embedding point, constructing a control function to guide the confusion component to express the embedded watermark information under a specific condition, and finally compiling the transformed host source code into aprogram instance carrying a watermark. The extraction process inputs a predetermined secret parameter configuration to a detected program and monitors an execution flow of the detected program, identifies a special condition jump mode generated by controlling the mixing assembly in the process, and reduces watermark information according to the definition of the collatz conjecture. Compared with the prior art, the method is highly fused with code obfuscation transformation, a control flow structure of a host program is used as a watermark carrier, and the method has the advantages of being high in data rate, concealment and resistance.

The invention provides a remote payment system of an application program. The remote payment system comprises a remote payment client side, a VNC (Virtual Network Computer) Server cluster, an application program scheduler and an application program cluster, wherein the VNC Server cluster and the application program scheduler are interconnected with the remote payment client side; the application program cluster is interconnected with the VNC Server cluster and the application program scheduler; the remote payment client side is used for sending an application program startup request to the application program scheduler, displaying an interface image of the application program pushed by the VNC Server cluster, receiving an operation instruction of a user and sending the operation instruction of the user to the VNC Server cluster; the application program scheduler is used for allocating an application server for the user and sending the IP (Internet Protocol) address of the application server to the VNC Server cluster; and the VNC Server cluster is used for starting the application program requested by the user in the application program cluster, receiving the interface image of the application program of the application program cluster and pushing the image to the remote payment client side. The invention also provides a corresponding remote payment method of an application program. The remote payment system and method can realize transformation to a cloud service mode from a traditional Linux application with a low cost.

An object of the present invention is to prevent illegal use of data (digital contents), and a second object is to provide a method for processing data which ensures the collection of charges for secondary use of the data, a data reading method for reading the data processed by this processing method, and a recording medium storing programs implementing these methods. The method for processing data is such that in a method for processing a data body b which is encrypted and is decrypted on a decryption bit length basis, and thereby is reproduced, the data body b is encrypted, a part of this data body b with a bit length different from the decryption bit length is omitted, and the omitted part is closed so as to make the data continuous.

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 provides a media file copyright protection method and a media file copyright protection system. The method comprises the following steps: randomly generating an encryption key and an identity identifier uniquely corresponding to a user respectively according to personal account information of the user; triggering a downloading instruction for a media file by a user; encrypting the media file by the server by using the encryption key corresponding to the user; and writing the identity identifier corresponding to the user into the media file through steganography. Locally, only anauthorized user downloading the media file can open the media file by utilizing the encryption key, so that the limitation of a propagation path is realized. The tracking of a propagation path is realized by writing the identity identifier of the downloading user into the to-be-downloaded file through steganography.

The embodiment of the invention discloses an application processing method and a related product, being applied to electronic equipment. The application processing method comprises the steps: acquiring a target installation-free application on an installation-free platform, wherein the target installation-free application comprises a target glue code and target binary data, and the target binary data is encrypted data; loading the target binary data through the target glue code; decrypting the target binary data to obtain unencrypted binary data; and compiling the unencrypted binary data to obtain a first service code corresponding to the target installation-free application. By adopting the embodiment of the invention, the cracking probability of the installation-free application can be reduced.

The invention discloses an SO file security reinforcement/calling method and system and a reversible matrix generation server. The method comprises the following steps: encrypting an Internet of Things application SO file by using an SM4 algorithm to obtain a binary file; randomly splitting the binary file into a plurality of file fragments; and recombining and packaging based on a randomly generated lookup table matrix. According to the method, the self security protection capability of the Internet of Things APP SO file running on the Internet of Things terminal is improved, and the reverse analysis prevention capability of the SO file is greatly enhanced through the SM4 cryptographic algorithm and the file fragment lookup table recombination technology, so that the Internet of Things terminal and the Internet of Things application are further protected from being attacked by malicious networks, and the method has a high engineering practical value.

The invention relates to a subject trial method and device. The method comprises the steps that a terminal sends a subject trial request to a server; the server generates a subject trial license certificate according to the request, wherein the subject trial license certificate comprises authorized device information; the server sends the subject trial license certificate and subject files corresponding to the request to the terminal; the terminal receives the subject trial license certificate and the subject files corresponding to the request, device information of the terminal and the authorized device information in the subject trial license certificate are matched, and if matching succeeds, the terminal runs the subject files corresponding to the request. By means of the subject trial method and device, the subject trial license certificate containing the authorized device information is set, permission of usage of a subject can be effectively managed, the condition that a paid subject is copied to other devices to be tried out for free indefinitely is particularly avoided, and the security of the subject files is improved.

A system and corresponding method of providing access to electronic media content by associating a content access time period with the electronic media content, providing a uniform resource locator (URL) to the content at a publication time, receiving a content access request from at least one content requesting entity, determining a type of requesting entity of the at least one content requesting entity, providing access to the content via the URL, based on the determining of the type of requesting entity, to the at least one content requesting entity from the publication time until an expiration of the content access time period, and providing a subscription query, based on reaching the expiration of the content access time period, to the at least one content requesting entity.

The invention discloses a digital rights management evaluation device for an intelligent terminal, and the device comprises a simulation module which is used for responding to a first instruction, and running a second operation system of the intelligent terminal to be evaluated in a first operation system of the evaluation device; the simulation module is also used for responding to a second instruction input by the user through the system interface of the second operating system and running a media content playing program in the second operating system; the monitoring module is used for acquiring monitoring data of the second operating system in the process of running the media content playing program; the data sending module is used for sending the monitoring data to the safety evaluation module; and the security evaluation module is used for receiving the monitoring data and evaluating whether the to-be-evaluated intelligent terminal has a digital copyright management security risk or not according to the monitoring data so as to obtain an analysis result.

The invention discloses an extension method based on java remote authorization APP, comprising: installing software on a PC and initializing the MAC address of the PC stored in the background; initiating an extension application; checking whether the extension is normal and setting an extension date. Remotely authorize the software that needs to be postponed, prevent the theft of the viewing software at the front desk, realize the one-to-one correspondence between the PC and the APP, greatly prevent the theft of the viewing software, and provide customers with a safer environment for use.

The invention discloses an encryption system of accounting software, includes USB port and PC port, the USB end comprises a motherboard information acquisition module, Single Chip Microcomputer, Key Generator, Keyboard and display, the PC terminal comprises a cipher input module, a data algorithm generator and a login authentication module, in accordance with the prior art, as the USB terminal isconnected with the PC terminal, the USB end collects the information of the PC end motherboard, ensure uniqueness, enter the USB port open password through the keyboard, random algorithms are generated by a data algorithm generator connected to the accounting software, the key generator generates the corresponding key, generates the new key according to the information of the motherboard and the key by the single chip microcomputer, then inputs the password displayed on the display at the PC end and logs in the accounting software, adopts the multiple encryption, effectively ensures the security of the accounting software, and has the value of popularizing and applying.