Security management system and security management method

摘要

PROBLEM TO BE SOLVED: To provide a security management technique for effectively preventing information leakage and falsification when electronic information is transferred between facilities not connected to an external computer network. A system 10 transmits confidential information S from a issuing unit 15 (15a, 15b) that issues confidential information S at each of a first facility 11 and a second facility 12 in only one direction. The element 29, the generation unit 21 of the first code K1 based on the transfer data P, the identification data D, and the confidential information S, and the writing unit 26 for writing the transfer data P t and the first code K 1to the external storage medium 39. , The read unit 27 that reads the transfer data P t , the identification data D, the confidential information S, and the first reference numeral K1 from the external storage medium 39, and the second reference numeral K 2based on the transfer data P, the identification data D, and the confidential information S. It includes a generation unit 22, a collation unit 35 of the first code K 1 and the second code K 2 , and a permission unit 36 that permits the introduction of the transferred data P into the device based on the matching collation result. [Selection diagram] Fig. 1