A study on migration scheme for a mobile trusted module

In modern information society, a high volume of important information is communicated in an on-line network. Specially, mobile environments that handle radio communication are more flexible than wired communication, and are developing rapidly. With the development of mobile environments, sensitive information can be compromised on-line, and demand for security has increased. Therefore TCG (trusted computing group) that is the standardization group for trust computing, suggested MTM (mobile trusted module) that is a hardware-based security module for security in mobile environments. MTM protects user privacy and platform integrity, because it is embedded in the platform, and it is physically secure. However, a security approach is required when secret data is migrated elsewhere, because MTM provides strong security functions. In this paper, we analyze the TCG standard and migration method for secure data, then we propose a secure maintenance scheme for secret data using USIM(universal subscriber identity module) that is a user authentication module.