Security management unit, host controller interface including same, method operating host controller interface

Abstract

A method of operating a host controller interface includes receiving a buffer descriptor including sector information from a main memory, fetching data by using a source address included in the buffer descriptor, selecting one of a plurality of entries included in a security policy table by using the sector information, and determining whether to encrypt the fetched data by using a security policy included in the selected entry.

Description

[0001] Cross references to related patent applications [0002] Priority is claimed from Korean Patent Application No. 10-2012-0116890 filed in the Korean Intellectual Property Office on Oct. 19, 2012, the subject matter of which is hereby incorporated by reference in its entirety. technical field [0003] The inventive concept relates to host controller interfaces. More particularly, the inventive concept relates to a security management unit in a host controller interface capable of managing a security policy according to a region of a corresponding storage device. The inventive concept also relates to a method of operating a host controller interface comprising said security management unit, and a device comprising such a host controller interface. Background technique [0004] Data security is an important consideration in the design and operation of storage devices within contemporary computer systems. An effective data security approach must prevent unauthorized acce...

AI Technical Summary

Problems solved by technology

In fact, processors that switch between data with different data security policies degrade the overall performance of the computer system constituted

Images