ANALYSIS SYSTEM, ANALYSIS DEVICE, ANALYSIS METHOD, AND STORAGE MEDIUM HAVING ANALYSIS PROGRAM RECORDED THEREIN

摘要

In order to extract encryption key candidates capable of deciphering (decoding) first data encrypted using a specified encryption method, from second data on the basis of a specified standard, this analysis system comprises an encryption analysis means having: a key candidate extraction unit that extracts at least one key data candidate including encryption keys capable of deciphering first data encrypted using the specified encryption method, from the second data on the basis of data indicating the characteristics of the key data; and an encryption deciphering means that extracts the correct key data capable of correctly deciphering the encrypted first data, from the at least one key data candidate, on the basis of the results of deciphering of the first data using the extracted key data candidates.