APPARATUS AND METHOD FOR PERFORMING TRUSTED MEASUREMENT BY INTRODUCING EXTERNAL HARDWARE ROOT OF TRUST

摘要

An apparatus and method for performing trusted measurement by introducing an external hardware root of trust. The apparatus comprises a universal serial bus supervision unit, a trusted computing module driving unit, a trusted computing module and a flash memory read-write unit, wherein the universal serial bus supervision unit is upwardly-docked with a universal serial bus interface of a computer, and is downwardly-connected to the trusted computing module driving unit and the flash memory read-write unit; and the trusted computing module driving unit is also connected to the trusted computing module. According to the apparatus and method, a USB interface serves as a communication interface between a trusted computing module and a computer, and an implementation means for key technology of connecting a host to a core root trusted measurement module and the trusted computing module in a USB manner is provided, such that the application field of trusted computing is no longer limited to new computers and new operating systems, but is also applicable to old computers which do not take trusted technology into consideration when being designed, thereby expanding the application range of trusted computing technology.