5 results about "Code conversion" patented technology

The application discloses a kind of software protection system and method based on multidimensional coding, belong to software security technical field.System includes: multidimensional coding conversion module, multilayer obfuscated encryption module, runtime dynamic checking module, tamper self-destruction module, rule anchoring module.Multidimensional coding conversion module is converted into multinary coding with binary machine code;Multilayer obfuscated encryption module is based on preset obfuscated rule and carries out multilayer obfuscation to coding;Runtime dynamic checking module checks code integrity and running environment legality in real time;Tamper self-destruction module triggers self-destruction mechanism when detecting exception.The application fundamentally improves the strength of software anti-reverse engineering, and is suitable for the intellectual property protection of core software, algorithm, firmware.

The application relates to the technical field of code conversion of data communication, and discloses a coding conversion processing method of controller communication signals, which comprises the following steps: generating a current bit difference vector by performing bitwise exclusive OR on a current serial input code stream vector and a history cache vector, determining a highest active bit boundary index and a lowest active bit boundary index by scanning and counting the current bit difference vector, calculating a feature word length, right-shifting the current bit difference vector by the lowest active bit boundary index, extracting a feature active section vector by truncation, searching a base address pointer, adding an offset to calculate a target physical storage address, reading a jump parameter according to the target physical storage address, and outputting a fixed-length conversion word stream. Through the cooperation of bidirectional boundary truncation and direct addressing, the application eliminates mapping collision and multi-round search time delay, fixes the code conversion overhead as constant single-period addressing, and ensures zero jitter of decoding delay.

The application discloses a marking-based cross-language code conversion customized content merging method and system, and belongs to the technical field of computer software development. The method comprises the following steps: adding a marking containing a unique number to a customized modification code segment in source language code; adding a marking with the same number as that in the source language code to a corresponding position in target language code; obtaining customized content between markings in a historical version of the target language code and caching before conversion; performing code conversion, and automatically replacing the cached customized content to a corresponding marking position according to the marking number in newly generated target code; and finally, performing consistency checking on the marking increase and decrease in the source language code and the target language code. Through the bidirectional marking and caching replacement mechanism, the application effectively solves the problem that the artificial customized content is easily covered in the cross-language conversion process, improves the conversion efficiency and accuracy, reduces the artificial intervention cost, and is suitable for large-scale legacy system migration scenarios.

The application provides a cross-system customer data asynchronous isolation exemption method and device, and a corresponding method comprises the following steps: when a first system in a distributed system completes isolation exemption of customer data, performing format conversion and code conversion on an exemption message sent by the first system; generating a conversion message; sending the conversion message to a second system in the distributed system; and when the second system receives the exemption message, triggering online transaction to perform isolation exemption on the customer data. The application proposes a cross-system asynchronous isolation exemption mechanism, and realizes accurate and reliable inter-system asynchronous exemption by using double insurance of normal exemption and bottom-up exemption under the premise of guaranteeing exemption consistency.

The application provides a kind of automobile parts two-dimensional code transcode error-proof method, obtains initial field set by scanning two-dimensional code, uses time sequence logic check method to identify abnormal field, and combines the rule change record in historical compatible database, matches the coding habit of supply chain identification, generates compatible rule set adjustment abnormal data, ensures that logical check passes and is fused to data conversion process;At the same time, the dynamic adaptive optimization method is used to update the check framework, generate new threshold value, and apply the core verification rule to the overall transcode operation, ensure the data reliability through cross-validation, and finally feedback to the real-time environment monitoring unit, optimize the data processing path.The application solves the problem of data inconsistency caused by the change of supply chain identification through the combination of compatible rule set and dynamic check framework, significantly improves the transcode accuracy and system adaptability, and ensures the reliability of automobile parts traceability.