INTERFACE CIRCUIT, INFORMATION PROCESSING DEVICE, AND INFORMATION PROCESSING SYSTEM

摘要

A host computer (3001) of the transmission side includes a scramble circuit (104) for encrypting command information. An information processing entire circuit (3003) of the reception side includes a descramble circuit (101) for decrypting the encrypted command information. Moreover, an interface circuit (103) includes a conversion circuit (102). When storing successively transmitted command information pieces into a memory module (3004), the conversion circuit (102) performs address conversion so that the information pieces are not arranged with the address of the received order. Accordingly, even if confidential information in a command is intercepted between devices or the portion containing the information in the circuit is observed from outside, it is possible to prevent leak of the content of the confidential information.