PROCESS ANALYSIS DEVICE, PROCESS ANALYSIS METHOD, AND PROCESS ANALYSIS PROGRAM

摘要

The present invention relates to a process analysis device for analyzing the process executed by an information-processing device and extracting a cipher logic such as the cipher function or decoding function utilized in the process. The process analysis device is provided with: an execution trace acquisition unit for acquiring the execution trace of the process to be analyzed; a block extraction unit for extracting, from the execution trace, a block that is the processing unit indicating a loop structure; a block information extraction unit for extracting block information including input information and output information; and a block information analysis unit for generating characteristic determination information for determining the characteristic of the input-output relation of a block by using the input information or output information of the block information, analyzing the input-output relation of the block by using the characteristic determination information, and determining that a block indicating the characteristic of the input-output relation of the cipher function or decoding function is a cipher logic.